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Merge branch 'bugfix/fix_touch_sensor_api_backport_v4.2' into 'release/v4.2'

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driver(touch): fix touch sensor driver redundancy  (backport v4.2)

See merge request espressif/esp-idf!9861
This commit is contained in:
Michael (XIAO Xufeng) 2020-07-30 16:17:51 +08:00
commit 4726076da5
14 changed files with 221 additions and 441 deletions
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46
components/driver/esp32s2/include/driver/touch_sensor.h
View file

@ -22,7 +22,7 @@ extern "C" {
/**
* @brief Set touch sensor FSM start
* @note Start FSM after the touch sensor FSM mode is set.
* @note Call this function will reset baseline of all touch channels.
* @note Call this function will reset benchmark of all touch channels.
* @return
* - ESP_OK on success
*/
@ -98,7 +98,7 @@ esp_err_t touch_pad_get_idle_channel_connect(touch_pad_conn_type_t *type);
/**
* @brief Set the trigger threshold of touch sensor.
* The threshold determines the sensitivity of the touch sensor.
* The threshold is the original value of the trigger state minus the baseline value.
* The threshold is the original value of the trigger state minus the benchmark value.
* @note If set "TOUCH_PAD_THRESHOLD_MAX", the touch is never be triggered.
* @param touch_num touch pad index
* @param threshold threshold of touch sensor. Should be less than the max change value of touch.
@ -264,15 +264,15 @@ esp_err_t touch_pad_timeout_resume(void);
esp_err_t touch_pad_read_raw_data(touch_pad_t touch_num, uint32_t *raw_data);
/**
* @brief get baseline of touch sensor.
* @note After initialization, the baseline value is the maximum during the first measurement period.
* @brief get benchmark of touch sensor.
* @note After initialization, the benchmark value is the maximum during the first measurement period.
* @param touch_num touch pad index
* @param basedata pointer to accept touch sensor baseline value
* @param benchmark pointer to accept touch sensor benchmark value
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_ARG Touch channel 0 haven't this parameter.
*/
esp_err_t touch_pad_filter_read_baseline(touch_pad_t touch_num, uint32_t *basedata);
esp_err_t touch_pad_read_benchmark(touch_pad_t touch_num, uint32_t *benchmark);
/**
* @brief Get smoothed data that obtained by filtering the raw data.
@ -283,13 +283,13 @@ esp_err_t touch_pad_filter_read_baseline(touch_pad_t touch_num, uint32_t *baseda
esp_err_t touch_pad_filter_read_smooth(touch_pad_t touch_num, uint32_t *smooth);
/**
* @brief Force reset baseline to raw data of touch sensor.
* @brief Force reset benchmark to raw data of touch sensor.
* @param touch_num touch pad index
* - TOUCH_PAD_MAX Reset basaline of all channels
* @return
* - ESP_OK Success
*/
esp_err_t touch_pad_filter_reset_baseline(touch_pad_t touch_num);
esp_err_t touch_pad_reset_benchmark(touch_pad_t touch_num);
/**
* @brief set parameter of touch sensor filter and detection algorithm.
@ -375,11 +375,12 @@ esp_err_t touch_pad_denoise_read_data(uint32_t *data);
/**
* @brief set parameter of waterproof function.
*
* The waterproof function includes a shielded channel (TOUCH_PAD_NUM14) and a guard channel.
* The shielded channel outputs the same signal as the channel being measured.
* Guard pad is used to detect the large area of water covering the touch panel.
* Shield pad is used to shield the influence of water droplets covering the touch panel.
* It is generally designed as a grid and is placed around the touch buttons.
* The shielded channel does not follow the measurement signal of the protection channel.
* So that the guard channel can detect a large area of water.
*
* @param waterproof parameter of waterproof
* @return
* - ESP_OK Success
@ -396,23 +397,14 @@ esp_err_t touch_pad_waterproof_get_config(touch_pad_waterproof_t *waterproof);
/**
* @brief Enable parameter of waterproof function.
* The waterproof function includes a shielded channel (TOUCH_PAD_NUM14) and a guard channel.
* The shielded channel outputs the same signal as the channel being measured.
* It is generally designed as a grid and is placed around the touch buttons.
* The shielded channel does not follow the measurement signal of the protection channel.
* So that the guard channel can detect a large area of water.
* Should be called after function ``touch_pad_waterproof_set_config``.
* @return
* - ESP_OK Success
*/
esp_err_t touch_pad_waterproof_enable(void);
/**
* @brief Enable parameter of waterproof function.
* The waterproof function includes a shielded channel (TOUCH_PAD_NUM14) and a guard channel.
* The shielded channel outputs the same signal as the channel being measured.
* It is generally designed as a grid and is placed around the touch buttons.
* The shielded channel does not follow the measurement signal of the protection channel.
* So that the guard channel can detect a large area of water.
* @brief Disable parameter of waterproof function.
* @return
* - ESP_OK Success
*/
@ -537,14 +529,14 @@ esp_err_t touch_pad_sleep_set_threshold(touch_pad_t pad_num, uint32_t touch_thre
esp_err_t touch_pad_sleep_get_threshold(touch_pad_t pad_num, uint32_t *touch_thres);
/**
* @brief Read baseline of touch sensor sleep channel.
* @brief Read benchmark of touch sensor sleep channel.
* @param pad_num Set touch channel number for sleep pad. Only one touch sensor channel is supported in deep sleep mode.
* @param baseline pointer to accept touch sensor baseline value
* @param benchmark pointer to accept touch sensor benchmark value
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_ARG parameter is NULL
*/
esp_err_t touch_pad_sleep_channel_read_baseline(touch_pad_t pad_num, uint32_t *baseline);
esp_err_t touch_pad_sleep_channel_read_benchmark(touch_pad_t pad_num, uint32_t *benchmark);
/**
* @brief Read smoothed data of touch sensor sleep channel.
@ -568,12 +560,12 @@ esp_err_t touch_pad_sleep_channel_read_smooth(touch_pad_t pad_num, uint32_t *smo
esp_err_t touch_pad_sleep_channel_read_data(touch_pad_t pad_num, uint32_t *raw_data);
/**
* @brief Reset baseline of touch sensor sleep channel.
* @brief Reset benchmark of touch sensor sleep channel.
*
* @return
* - ESP_OK Success
*/
esp_err_t touch_pad_sleep_channel_reset_baseline(void);
esp_err_t touch_pad_sleep_channel_reset_benchmark(void);
/**
* @brief Read proximity count of touch sensor sleep channel.

21
components/driver/esp32s2/touch_sensor.c
View file

@ -322,21 +322,21 @@ esp_err_t IRAM_ATTR touch_pad_filter_read_smooth(touch_pad_t touch_num, uint32_t
return ESP_OK;
}
esp_err_t IRAM_ATTR touch_pad_filter_read_baseline(touch_pad_t touch_num, uint32_t *basedata)
esp_err_t IRAM_ATTR touch_pad_read_benchmark(touch_pad_t touch_num, uint32_t *benchmark)
{
TOUCH_CHANNEL_CHECK(touch_num);
TOUCH_ENTER_CRITICAL_SAFE();
touch_hal_filter_read_baseline(touch_num, basedata);
touch_hal_read_benchmark(touch_num, benchmark);
TOUCH_EXIT_CRITICAL_SAFE();
return ESP_OK;
}
/* Should be call after clk enable and filter enable. */
esp_err_t touch_pad_filter_reset_baseline(touch_pad_t touch_num)
esp_err_t touch_pad_reset_benchmark(touch_pad_t touch_num)
{
TOUCH_CHECK(touch_num <= TOUCH_PAD_MAX && touch_num >= 0, "Touch channel error", ESP_ERR_INVALID_ARG);
TOUCH_ENTER_CRITICAL();
touch_hal_filter_reset_baseline(touch_num);
touch_hal_reset_benchmark(touch_num);
TOUCH_EXIT_CRITICAL();
return ESP_OK;
}
@ -345,10 +345,7 @@ esp_err_t touch_pad_filter_set_config(touch_filter_config_t *filter_info)
{
TOUCH_CHECK(filter_info->mode < TOUCH_PAD_FILTER_MAX, TOUCH_PARAM_CHECK_STR("mode"), ESP_ERR_INVALID_ARG);
TOUCH_CHECK(filter_info->debounce_cnt <= TOUCH_DEBOUNCE_CNT_MAX, TOUCH_PARAM_CHECK_STR("debounce"), ESP_ERR_INVALID_ARG);
TOUCH_CHECK(filter_info->hysteresis_thr <= TOUCH_HYSTERESIS_THR_MAX, TOUCH_PARAM_CHECK_STR("hysteresis"), ESP_ERR_INVALID_ARG);
TOUCH_CHECK(filter_info->noise_thr <= TOUCH_NOISE_THR_MAX, TOUCH_PARAM_CHECK_STR("noise"), ESP_ERR_INVALID_ARG);
TOUCH_CHECK(filter_info->noise_neg_thr <= TOUCH_NOISE_NEG_THR_MAX, TOUCH_PARAM_CHECK_STR("noise"), ESP_ERR_INVALID_ARG);
TOUCH_CHECK(filter_info->neg_noise_limit <= TOUCH_NEG_NOISE_CNT_LIMIT, TOUCH_PARAM_CHECK_STR("noise_limit"), ESP_ERR_INVALID_ARG);
TOUCH_CHECK(filter_info->jitter_step <= TOUCH_JITTER_STEP_MAX, TOUCH_PARAM_CHECK_STR("jitter_step"), ESP_ERR_INVALID_ARG);
TOUCH_CHECK(filter_info->smh_lvl < TOUCH_PAD_SMOOTH_MAX, TOUCH_PARAM_CHECK_STR("smooth level"), ESP_ERR_INVALID_ARG);
@ -522,7 +519,7 @@ esp_err_t touch_pad_proximity_get_data(touch_pad_t touch_num, uint32_t *measure_
{
TOUCH_CHECK(touch_hal_proximity_pad_check(touch_num), "touch num is not proximity", ESP_ERR_INVALID_ARG);
TOUCH_ENTER_CRITICAL_SAFE();
touch_hal_filter_read_baseline(touch_num, measure_out);
touch_hal_read_benchmark(touch_num, measure_out);
TOUCH_EXIT_CRITICAL_SAFE();
return ESP_OK;
}
@ -585,10 +582,10 @@ esp_err_t touch_pad_sleep_get_threshold(touch_pad_t pad_num, uint32_t *touch_thr
return ESP_OK;
}
esp_err_t touch_pad_sleep_channel_read_baseline(touch_pad_t pad_num, uint32_t *baseline)
esp_err_t touch_pad_sleep_channel_read_benchmark(touch_pad_t pad_num, uint32_t *benchmark)
{
TOUCH_ENTER_CRITICAL_SAFE();
touch_hal_sleep_read_baseline(baseline);
touch_hal_sleep_read_benchmark(benchmark);
TOUCH_EXIT_CRITICAL_SAFE();
return ESP_OK;
}
@ -609,10 +606,10 @@ esp_err_t touch_pad_sleep_channel_read_data(touch_pad_t pad_num, uint32_t *raw_d
return ESP_OK;
}
esp_err_t touch_pad_sleep_channel_reset_baseline(void)
esp_err_t touch_pad_sleep_channel_reset_benchmark(void)
{
TOUCH_ENTER_CRITICAL();
touch_hal_sleep_reset_baseline();
touch_hal_sleep_reset_benchmark();
TOUCH_EXIT_CRITICAL();
return ESP_OK;
}

207
components/driver/test/touch_sensor_test/test_esp32s2.c
View file

@ -125,12 +125,12 @@ static void printf_touch_hw_read(const char *str)
printf("\r\n");
}
static void printf_touch_baseline_read(const char *str)
static void printf_touch_benchmark_read(const char *str)
{
uint32_t touch_value;
printf("[%s] ", str);
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
printf("[%d]%d ", touch_list[i], touch_value);
}
printf("\r\n");
@ -190,19 +190,18 @@ static void test_touch_release_all(void)
}
}
/* Test: if the raw data exceed noise threshold, the baseline should not be updated. */
static void test_touch_baseline_not_update(void)
static void test_touch_benchmark(void)
{
uint32_t touch_val[TEST_TOUCH_CHANNEL] = {0};
uint32_t touch_temp[TEST_TOUCH_CHANNEL] = {0};
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_val[i]) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_val[i]) );
}
for (int i = 0; i < 10; i++) {
vTaskDelay(20 / portTICK_PERIOD_MS);
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_temp[i]) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_temp[i]) );
TEST_ASSERT_EQUAL(touch_temp[i], touch_val[i]);
}
}
@ -356,10 +355,7 @@ esp_err_t test_touch_filtered_read(void)
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_32, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 0%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
.smh_lvl = TOUCH_PAD_SMOOTH_IIR_2,
};
@ -371,10 +367,10 @@ esp_err_t test_touch_filtered_read(void)
/* Wait touch pad init done. */
vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);
/* Test the stable for init value of touch reading.
* Ideal: baseline == raw data == smooth data.
* Ideal: benchmark == raw data == smooth data.
*/
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value[i]) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value[i]) );
TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_value[i]);
TEST_ESP_OK( touch_pad_read_raw_data(touch_list[i], &touch_temp[i]) );
TEST_ASSERT_NOT_EQUAL(TOUCH_READ_INVALID_VAL, touch_temp[i]);
@ -385,7 +381,7 @@ esp_err_t test_touch_filtered_read(void)
}
printf("touch filter init value:\n");
printf_touch_hw_read("raw ");
printf_touch_baseline_read("base ");
printf_touch_benchmark_read("base ");
printf_touch_smooth_read("smooth");
printf("\n");
@ -394,7 +390,7 @@ esp_err_t test_touch_filtered_read(void)
/* Touch reading filtered value equal to raw data. */
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_read_raw_data(touch_list[i], &touch_value[i]) );
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_temp[i]) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_temp[i]) );
TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp[i], touch_value[i]);
TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &touch_temp[i]) );
TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp[i], touch_value[i]);
@ -453,10 +449,7 @@ int test_touch_base_parameter(touch_pad_t pad_num, int meas_time, int slp_time,
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_32, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 0%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
.smh_lvl = TOUCH_PAD_SMOOTH_IIR_2,
};
@ -469,9 +462,9 @@ int test_touch_base_parameter(touch_pad_t pad_num, int meas_time, int slp_time,
vTaskDelay(100 / portTICK_PERIOD_MS);
while (test_cnt--) {
/* Correctness of reading. Ideal: baseline == raw data == smooth data. */
/* Correctness of reading. Ideal: benchmark == raw data == smooth data. */
TEST_ESP_OK( touch_pad_read_raw_data(pad_num, &touch_value) );
TEST_ESP_OK( touch_pad_filter_read_baseline(pad_num, &touch_filter) );
TEST_ESP_OK( touch_pad_read_benchmark(pad_num, &touch_filter) );
TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_filter, touch_value);
TEST_ESP_OK( touch_pad_filter_read_smooth(pad_num, &touch_filter) );
TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_filter, touch_value);
@ -779,10 +772,10 @@ static void test_touch_intr_cb(void *arg)
return;
}
if (evt.intr_mask & TOUCH_PAD_INTR_MASK_SCAN_DONE) {
touch_pad_filter_read_baseline(evt.pad_num, &evt.pad_val);
touch_pad_read_benchmark(evt.pad_num, &evt.pad_val);
touch_pad_sleep_channel_t slp_config;
touch_pad_sleep_channel_get_info(&slp_config);
touch_pad_sleep_channel_read_baseline(slp_config.touch_num, &touch_value);
touch_pad_sleep_channel_read_benchmark(slp_config.touch_num, &touch_value);
touch_pad_sleep_channel_read_proximity_cnt(slp_config.touch_num, &cnt);
evt.slp_proxi_cnt = cnt;
evt.slp_proxi_base = touch_value;
@ -804,7 +797,7 @@ static void test_touch_intr_cb(void *arg)
* TEST POINT:
* 1. Touch interrupt.
* 2. Raw data noise.
* 3. smooth data and baseline data.
* 3. smooth data and benchmark data.
*/
esp_err_t test_touch_interrupt(void)
{
@ -826,10 +819,7 @@ esp_err_t test_touch_interrupt(void)
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_16, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 0%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
.smh_lvl = TOUCH_PAD_SMOOTH_IIR_2,
};
@ -845,7 +835,7 @@ esp_err_t test_touch_interrupt(void)
/* Set threshold of touch sensor */
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &smooth) );
TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
ESP_LOGI(TAG, "test init: touch pad [%d] base %d, smooth %d, thresh %d",
@ -857,8 +847,7 @@ esp_err_t test_touch_interrupt(void)
TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
printf_touch_hw_read("push");
/* Test: if the raw data exceed noise threshold, the baseline should not be updated. */
test_touch_baseline_not_update();
test_touch_benchmark();
test_touch_release_all();
TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
@ -875,7 +864,7 @@ esp_err_t test_touch_interrupt(void)
* TEST POINT:
* 1. Touch interrupt.
* 2. Raw data noise.
* 3. smooth data and baseline data.
* 3. smooth data and benchmark data.
*/
esp_err_t test_touch_scan_done_interrupt(void)
{
@ -897,10 +886,7 @@ esp_err_t test_touch_scan_done_interrupt(void)
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_16, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 0%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
.smh_lvl = TOUCH_PAD_SMOOTH_IIR_2,
};
@ -917,7 +903,7 @@ esp_err_t test_touch_scan_done_interrupt(void)
vTaskDelay(50 / portTICK_PERIOD_MS);
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &smooth) );
TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
ESP_LOGI(TAG, "test init: touch pad [%d] base %d, smooth %d, thresh %d", \
@ -929,8 +915,7 @@ esp_err_t test_touch_scan_done_interrupt(void)
TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
printf_touch_hw_read("push");
/* Test: if the raw data exceed noise threshold, the baseline should not be updated. */
test_touch_baseline_not_update();
test_touch_benchmark();
test_touch_release_all();
TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
@ -947,7 +932,7 @@ esp_err_t test_touch_scan_done_interrupt(void)
* TEST POINT:
* 1. Touch interrupt.
* 2. Raw data noise.
* 3. smooth data and baseline data.
* 3. smooth data and benchmark data.
*/
esp_err_t test_touch_timeout_interrupt(void)
{
@ -968,10 +953,7 @@ esp_err_t test_touch_timeout_interrupt(void)
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_16, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 0%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
.smh_lvl = TOUCH_PAD_SMOOTH_IIR_2,
};
@ -986,14 +968,14 @@ esp_err_t test_touch_timeout_interrupt(void)
vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &smooth) );
TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
ESP_LOGI(TAG, "test init: touch pad [%d] base %d, smooth %d, thresh %d",
touch_list[i], touch_value, smooth, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
}
/* Set timeout parameter */
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[0], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[0], &touch_value) );
TEST_ESP_OK( touch_pad_timeout_set(true , touch_value * 10) );
// Only fake push one touch pad.
@ -1004,7 +986,7 @@ esp_err_t test_touch_timeout_interrupt(void)
vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);
printf_touch_hw_read("raw ");
printf_touch_baseline_read("base ");
printf_touch_benchmark_read("base ");
printf_touch_smooth_read("smooth");
int test_cnt = TEST_TOUCH_COUNT_NUM;
@ -1013,8 +995,7 @@ esp_err_t test_touch_timeout_interrupt(void)
TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
printf_touch_hw_read("push");
/* Test: if the raw data exceed noise threshold, the baseline should not be updated. */
test_touch_baseline_not_update();
test_touch_benchmark();
test_touch_release_all();
TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
@ -1052,7 +1033,7 @@ static void test_touch_measure_step(uint32_t step)
* TEST POINT:
* 1. Touch interrupt.
* 2. Raw data noise.
* 3. smooth data and baseline data.
* 3. smooth data and benchmark data.
*/
esp_err_t test_touch_filter_parameter_debounce(int deb_cnt)
{
@ -1074,10 +1055,7 @@ esp_err_t test_touch_filter_parameter_debounce(int deb_cnt)
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_128, // Test jitter and filter 1/4.
.debounce_cnt = ((deb_cnt < 0) ? 1 : deb_cnt) , // 1 time count.
.hysteresis_thr = 3, // 0%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
.smh_lvl = TOUCH_PAD_SMOOTH_OFF,
};
@ -1093,7 +1071,7 @@ esp_err_t test_touch_filter_parameter_debounce(int deb_cnt)
/* Set the threshold. */
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
ESP_LOGI(TAG, "test init: touch pad [%d] base %d, thresh %d", \
touch_list[i], touch_value, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
@ -1122,7 +1100,7 @@ esp_err_t test_touch_filter_parameter_debounce(int deb_cnt)
return ESP_OK;
}
esp_err_t test_touch_filter_parameter_neg_reset(int reset_cnt)
esp_err_t test_touch_filter_parameter_reset(int reset_cnt)
{
uint32_t touch_value, base_value;
@ -1142,10 +1120,7 @@ esp_err_t test_touch_filter_parameter_neg_reset(int reset_cnt)
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_16, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 0%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = reset_cnt, // 10 time count.
.jitter_step = 4, // use for jitter mode.
.smh_lvl = TOUCH_PAD_SMOOTH_OFF,
};
@ -1161,7 +1136,7 @@ esp_err_t test_touch_filter_parameter_neg_reset(int reset_cnt)
/* Set the threshold. */
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
ESP_LOGI(TAG, "test init: touch pad [%d] base %d, thresh %d", \
touch_list[i], touch_value, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
@ -1169,36 +1144,36 @@ esp_err_t test_touch_filter_parameter_neg_reset(int reset_cnt)
/* 1. Fake init status is touched. */
test_touch_push_all();
TEST_ESP_OK( touch_pad_filter_reset_baseline(TOUCH_PAD_MAX) );
TEST_ESP_OK( touch_pad_reset_benchmark(TOUCH_PAD_MAX) );
/* Run to wait the data become stable. */
test_touch_measure_step(20); // 2 scan loop
printf_touch_hw_read("[raw ] reset:");
printf_touch_baseline_read("[base] reset:");
printf_touch_benchmark_read("[base] reset:");
/* 2. Fake the touch status is released. */
test_touch_release_all();
/* 3. Fake measure `reset_cnt + 1` times to reset the baseline. */
/* 3. Fake measure `reset_cnt + 1` times to reset the benchmark. */
test_touch_measure_step(reset_cnt);
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_read_raw_data(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &base_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &base_value) );
if ((base_value - touch_value) < (base_value * TOUCH_INTR_THRESHOLD)) {
ESP_LOGE(TAG, "neg reset cnt err");
ESP_LOGE(TAG, "reset cnt err");
TEST_FAIL();
}
}
printf_touch_hw_read("[raw ] neg_cnt:");
printf_touch_baseline_read("[base] neg_cnt:");
printf_touch_hw_read("[raw ] cnt:");
printf_touch_benchmark_read("[base] cnt:");
test_touch_measure_step(1);
/* ESP32S2 neg reset baseline to raw data */
/* ESP32S2 reset benchmark to raw data */
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_read_raw_data(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &base_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &base_value) );
TEST_ASSERT_EQUAL_UINT32(base_value, touch_value);
}
printf_touch_hw_read("[raw ] neg_cnt+1:");
printf_touch_baseline_read("[base] neg_cnt+1:");
printf_touch_hw_read("[raw ] cnt+1:");
printf_touch_benchmark_read("[base] cnt+1:");
int test_cnt = 2;
while (test_cnt--) {
@ -1240,10 +1215,7 @@ esp_err_t test_touch_filter_parameter_jitter(int jitter_step)
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_JITTER, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 0%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = jitter_step, // use for jitter mode.
};
TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
@ -1256,30 +1228,30 @@ esp_err_t test_touch_filter_parameter_jitter(int jitter_step)
test_touch_measure_step(20); // 2 scan loop
/* Check the jitter step. */
printf_touch_baseline_read("[smooth] t1:");
printf_touch_benchmark_read("[smooth] t1:");
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
test_touch_measure_step(1);
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
test_press_fake(touch_list[i]);
test_touch_measure_step(1);
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &base_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &base_value) );
TEST_ASSERT_EQUAL_UINT32(jitter_step, (base_value - touch_value));
}
printf_touch_baseline_read("[smooth] t2:");
printf_touch_benchmark_read("[smooth] t2:");
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
test_touch_measure_step(1);
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
test_release_fake(touch_list[i]);
test_touch_measure_step(1);
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &base_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &base_value) );
TEST_ASSERT_EQUAL_UINT32(jitter_step, (touch_value - base_value));
}
printf_touch_baseline_read("[smooth] t3:");
printf_touch_benchmark_read("[smooth] t3:");
/* Set the threshold. */
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
//read baseline value
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
//read benchmark value
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
//set interrupt threshold.
TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
ESP_LOGI(TAG, "test init: touch pad [%d] base %d, thresh %d", \
@ -1306,17 +1278,15 @@ esp_err_t test_touch_filter_parameter_jitter(int jitter_step)
return ESP_OK;
}
TEST_CASE("Touch Sensor filter paramter test (debounce, neg_reset, jitter)", "[touch]")
TEST_CASE("Touch Sensor filter paramter test (debounce, reset, jitter)", "[touch]")
{
ESP_LOGI(TAG, "*********** touch filter debounce test ********************");
TEST_ESP_OK( test_touch_filter_parameter_debounce(0) );
TEST_ESP_OK( test_touch_filter_parameter_debounce(3) );
TEST_ESP_OK( test_touch_filter_parameter_debounce(7) );
ESP_LOGI(TAG, "*********** touch filter neg threshold reset limit test ********************");
TEST_ESP_OK( test_touch_filter_parameter_neg_reset(1) );
TEST_ESP_OK( test_touch_filter_parameter_neg_reset(5) );
TEST_ESP_OK( test_touch_filter_parameter_neg_reset(15) );
ESP_LOGI(TAG, "*********** touch filter benchmark reset ********************");
TEST_ESP_OK( test_touch_filter_parameter_reset(0xF) );
ESP_LOGI(TAG, "*********** touch filter jitter test ********************");
TEST_ESP_OK( test_touch_filter_parameter_jitter(1) );
@ -1353,10 +1323,7 @@ esp_err_t test_touch_denoise(uint32_t out_val[], uint32_t *denoise_val, touch_pa
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_16, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 0%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
};
TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
@ -1370,14 +1337,14 @@ esp_err_t test_touch_denoise(uint32_t out_val[], uint32_t *denoise_val, touch_pa
/* Set the threshold. */
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
if (out_val) {
/* Output value for check. */
out_val[i] = touch_value;
}
}
printf_touch_baseline_read("Denoise");
printf_touch_benchmark_read("Denoise");
if (denoise_val) {
touch_pad_denoise_read_data(denoise_val);
}
@ -1470,10 +1437,7 @@ esp_err_t test_touch_waterproof(void)
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_16, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 0%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
};
TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
@ -1496,7 +1460,7 @@ esp_err_t test_touch_waterproof(void)
/* Set the threshold. */
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
}
@ -1550,10 +1514,7 @@ esp_err_t test_touch_proximity(int meas_num)
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_16, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 0%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
};
TEST_ESP_OK( touch_pad_filter_set_config(&filter_info) );
@ -1576,7 +1537,7 @@ esp_err_t test_touch_proximity(int meas_num)
/* Set the threshold. */
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
if (touch_list[i] == proximity_pad[0] ||
touch_list[i] == proximity_pad[1] ||
touch_list[i] == proximity_pad[2]) {
@ -1658,10 +1619,7 @@ esp_err_t test_touch_sleep_reading_stable(touch_pad_t sleep_pad)
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_16, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 0%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
.smh_lvl = TOUCH_PAD_SMOOTH_OFF,
};
@ -1679,7 +1637,7 @@ esp_err_t test_touch_sleep_reading_stable(touch_pad_t sleep_pad)
/* Set threshold of touch sensor */
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &smooth) );
TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
ESP_LOGI(TAG, "test init: touch pad [%d] base %d, smooth %d, thresh %d",
@ -1687,7 +1645,7 @@ esp_err_t test_touch_sleep_reading_stable(touch_pad_t sleep_pad)
}
/* Sleep channel setting */
TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &touch_value) );
TEST_ESP_OK( touch_pad_sleep_channel_read_benchmark(sleep_pad, &touch_value) );
TEST_ESP_OK( touch_pad_sleep_set_threshold(sleep_pad, touch_value * TOUCH_INTR_THRESHOLD) );
vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);
@ -1695,7 +1653,7 @@ esp_err_t test_touch_sleep_reading_stable(touch_pad_t sleep_pad)
/* Touch reading filtered value equal to raw data. */
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_sleep_channel_read_data(sleep_pad, &touch_value) );
TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &touch_temp) );
TEST_ESP_OK( touch_pad_sleep_channel_read_benchmark(sleep_pad, &touch_temp) );
TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp, touch_value);
TEST_ESP_OK( touch_pad_sleep_channel_read_smooth(sleep_pad, &touch_temp) );
TEST_ASSERT_UINT32_WITHIN(TOUCH_READ_ERROR, touch_temp, touch_value);
@ -1708,7 +1666,7 @@ esp_err_t test_touch_sleep_reading_stable(touch_pad_t sleep_pad)
}
vTaskDelay(20 / portTICK_PERIOD_MS);
}
TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &ret_val) );
TEST_ESP_OK( touch_pad_sleep_channel_read_benchmark(sleep_pad, &ret_val) );
TEST_ESP_OK( touch_pad_deinit() );
@ -1760,10 +1718,7 @@ uint32_t test_touch_sleep_pad_proximity(touch_pad_t sleep_pad, bool is_proximity
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_16, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 0%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
.smh_lvl = TOUCH_PAD_SMOOTH_OFF,
};
@ -1789,14 +1744,13 @@ uint32_t test_touch_sleep_pad_proximity(touch_pad_t sleep_pad, bool is_proximity
ESP_LOGI(TAG, "Sleep pad [%d] base %d, thresh %d", touch_list[i], touch_value,
(uint32_t)(meas_num * touch_value * (1 + TOUCH_INTR_THRESHOLD)));
} else if (touch_list[i] == sleep_pad) {
// TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
touch_pad_sleep_channel_read_smooth(sleep_pad, &touch_value);
/* The threshold of proximity pad is the sum of touch reading `meas_num` times */
touch_pad_sleep_set_threshold(sleep_pad, meas_num * touch_value * (1 + TOUCH_INTR_THRESHOLD));
ESP_LOGI(TAG, "proximity pad [%d] base %d, thresh %d", touch_list[i], touch_value,
(uint32_t)(meas_num * touch_value * (1 + TOUCH_INTR_THRESHOLD)));
} else {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
ESP_LOGI(TAG, "touch pad [%d] base %d, thresh %d", \
touch_list[i], touch_value, (uint32_t)(touch_value * TOUCH_INTR_THRESHOLD));
@ -1817,7 +1771,7 @@ uint32_t test_touch_sleep_pad_proximity(touch_pad_t sleep_pad, bool is_proximity
} else {
/* Set threshold of touch sensor */
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &smooth) );
TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
ESP_LOGI(TAG, "test init: touch pad [%d] base %d, smooth %d, thresh %d",
@ -1837,7 +1791,7 @@ uint32_t test_touch_sleep_pad_proximity(touch_pad_t sleep_pad, bool is_proximity
printf_touch_hw_read("push");
if (is_proximity) {
TEST_ESP_OK( touch_pad_sleep_channel_read_smooth(sleep_pad, &smooth) );
TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &touch_value) );
TEST_ESP_OK( touch_pad_sleep_channel_read_benchmark(sleep_pad, &touch_value) );
TEST_ESP_OK( touch_pad_proximity_get_data(sleep_pad, &measure_out) );
TEST_ESP_OK( touch_pad_sleep_channel_read_proximity_cnt(sleep_pad, &proximity_cnt) );
TEST_ESP_OK( touch_pad_sleep_get_threshold(sleep_pad, &touch_thres) );
@ -1850,7 +1804,7 @@ uint32_t test_touch_sleep_pad_proximity(touch_pad_t sleep_pad, bool is_proximity
printf_touch_hw_read("release");
if (is_proximity) {
TEST_ESP_OK( touch_pad_sleep_channel_read_smooth(sleep_pad, &smooth) );
TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &touch_value) );
TEST_ESP_OK( touch_pad_sleep_channel_read_benchmark(sleep_pad, &touch_value) );
TEST_ESP_OK( touch_pad_proximity_get_data(sleep_pad, &measure_out) );
TEST_ESP_OK( touch_pad_sleep_channel_read_proximity_cnt(sleep_pad, &proximity_cnt) );
printf("touch slp smooth %d, base %d, proxi %d cnt %d status 0x%x\n",
@ -1910,10 +1864,7 @@ esp_err_t test_touch_sleep_pad_interrupt_wakeup_deep_sleep(touch_pad_t sleep_pad
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_16, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 0%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
.smh_lvl = TOUCH_PAD_SMOOTH_OFF,
};
@ -1932,7 +1883,7 @@ esp_err_t test_touch_sleep_pad_interrupt_wakeup_deep_sleep(touch_pad_t sleep_pad
/* Set threshold of touch sensor */
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &smooth) );
TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_INTR_THRESHOLD) );
ESP_LOGI(TAG, "test init: touch pad [%d] base %d, smooth %d, thresh %d",
@ -1940,7 +1891,7 @@ esp_err_t test_touch_sleep_pad_interrupt_wakeup_deep_sleep(touch_pad_t sleep_pad
}
/* Sleep channel setting */
TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &touch_value) );
TEST_ESP_OK( touch_pad_sleep_channel_read_benchmark(sleep_pad, &touch_value) );
TEST_ESP_OK( touch_pad_sleep_set_threshold(sleep_pad, touch_value * TOUCH_INTR_THRESHOLD) );
vTaskDelay(50 * SYS_DELAY_TIME_MOM / portTICK_PERIOD_MS);
@ -1950,7 +1901,7 @@ esp_err_t test_touch_sleep_pad_interrupt_wakeup_deep_sleep(touch_pad_t sleep_pad
printf_touch_hw_read("push");
TEST_ESP_OK( touch_pad_sleep_channel_read_smooth(sleep_pad, &smooth) );
TEST_ESP_OK( touch_pad_sleep_channel_read_data(sleep_pad, &raw) );
TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &touch_value) );
TEST_ESP_OK( touch_pad_sleep_channel_read_benchmark(sleep_pad, &touch_value) );
printf("touch slp raw %d, smooth %d, base %d, status 0x%x\n", raw, smooth, touch_value, touch_pad_get_status());
test_touch_release_all();
@ -1958,7 +1909,7 @@ esp_err_t test_touch_sleep_pad_interrupt_wakeup_deep_sleep(touch_pad_t sleep_pad
printf_touch_hw_read("release");
TEST_ESP_OK( touch_pad_sleep_channel_read_smooth(sleep_pad, &smooth) );
TEST_ESP_OK( touch_pad_sleep_channel_read_data(sleep_pad, &raw) );
TEST_ESP_OK( touch_pad_sleep_channel_read_baseline(sleep_pad, &touch_value) );
TEST_ESP_OK( touch_pad_sleep_channel_read_benchmark(sleep_pad, &touch_value) );
printf("touch slp raw %d, smooth %d, base %d, status 0x%x\n", raw, smooth, touch_value, touch_pad_get_status());
return ESP_OK;
@ -2030,8 +1981,8 @@ TEST_CASE("Touch Sensor sleep pad wakeup deep sleep test", "[touch][ignore]")
#include "touch_scope.h"
/*
* 0: 10 channels raw/smooth/baseline data debug.
* 1: 5 channges smooth + baseline data debug.
* 0: 10 channels raw/smooth/benchmark data debug.
* 1: 5 channges smooth + benchmark data debug.
* 2: 1 channels filter data.
*/
#define SCOPE_DEBUG_TYPE 2
@ -2062,10 +2013,7 @@ void test_touch_slope_debug(int pad_num)
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_32, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 2, // 6.25%
.noise_thr = 3, // 50%
.noise_neg_thr = 3, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
.smh_lvl = TOUCH_PAD_SMOOTH_IIR_2,
};
@ -2090,7 +2038,7 @@ void test_touch_slope_debug(int pad_num)
/* Set threshold of touch sensor */
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
TEST_ESP_OK( touch_pad_filter_read_baseline(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_read_benchmark(touch_list[i], &touch_value) );
TEST_ESP_OK( touch_pad_filter_read_smooth(touch_list[i], &smooth) );
TEST_ESP_OK( touch_pad_set_thresh(touch_list[i], touch_value * TOUCH_THRESHOLD) );
ESP_LOGI(TAG, "test init: touch pad [%d] base %d, smooth %d, thresh %d", \
@ -2106,7 +2054,7 @@ void test_touch_slope_debug(int pad_num)
for (int i = 0; i < TEST_TOUCH_CHANNEL; i++) {
touch_pad_read_raw_data(touch_list[i], &scope_data[i]);
// touch_pad_filter_read_smooth(touch_list[i], &scope_data[i]);
// touch_pad_filter_read_baseline(touch_list[i], &scope_data[i]);
// touch_pad_read_benchmark(touch_list[i], &scope_data[i]);
scope_temp[i] = scope_data[i];
}
test_tp_print_to_scope(scope_temp, TEST_TOUCH_CHANNEL);
@ -2128,29 +2076,27 @@ void test_touch_slope_debug(int pad_num)
}
#elif SCOPE_DEBUG_TYPE == 2
uint32_t status;
touch_pad_filter_read_baseline(pad_num, &status);
touch_pad_read_benchmark(pad_num, &status);
while (1) {
xQueueReceive(que_touch, &evt, SCOPE_DEBUG_FREQ_MS / portTICK_RATE_MS);
//read filtered value
touch_pad_read_raw_data(pad_num, &scope_data[0]);
touch_pad_filter_read_baseline(pad_num, &scope_data[1]);
touch_pad_read_benchmark(pad_num, &scope_data[1]);
touch_pad_get_thresh(pad_num, &scope_data[2]);
touch_pad_filter_read_smooth(pad_num, &scope_data[8]);
// raw data
scope_temp[0] = scope_data[0];
// baseline
// benchmark
scope_temp[1] = scope_data[1];
// smooth data
scope_temp[8] = scope_data[8];
// noise neg thr
// noise thr
scope_temp[2] = scope_temp[1] - scope_data[2] * 0.5;
// noise thr
scope_temp[3] = scope_temp[1] + scope_data[2] * 0.5;
// touch thr
scope_temp[4] = scope_temp[1] + scope_data[2];
// hysteresis_thr thr
scope_temp[5] = scope_temp[4] - scope_data[2] * 0.0625;
// hysteresis_thr thr
scope_temp[6] = scope_temp[4] + scope_data[2] * 0.0625;
// touch status
if (touch_pad_get_status() & BIT(pad_num)) {
@ -2166,8 +2112,7 @@ void test_touch_slope_debug(int pad_num)
TEST_ESP_OK( test_touch_check_ch_touched(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );
printf_touch_hw_read("push");
/* Test: if the raw data exceed noise threshold, the baseline should not be updated. */
test_touch_baseline_not_update();
test_touch_benchmark();
test_touch_release_all();
TEST_ESP_OK( test_touch_check_ch_released(TEST_TOUCH_CHANNEL, TOUCH_EXCEED_TIME_MS) );

35
components/soc/include/hal/touch_sensor_types.h
View file

@ -193,6 +193,7 @@ typedef struct touch_pad_denoise {
from the reading of denoise channel. */
} touch_pad_denoise_t;
/** Touch sensor shield channel drive capability level */
typedef enum {
TOUCH_PAD_SHIELD_DRV_L0 = 0,/*!<The max equivalent capacitance in shield channel is 40pf */
TOUCH_PAD_SHIELD_DRV_L1, /*!<The max equivalent capacitance in shield channel is 80pf */
@ -207,10 +208,13 @@ typedef enum {
/** Touch sensor waterproof configuration */
typedef struct touch_pad_waterproof {
touch_pad_t guard_ring_pad; /*!<Waterproof. Select touch channel use for guard pad */
touch_pad_shield_driver_t shield_driver;/*!<Waterproof. Select max equivalent capacitance for shield pad
Config the Touch14 to the touch sensor and compare the measured
reading to the Touch0 reading to estimate the equivalent capacitance.*/
touch_pad_t guard_ring_pad; /*!<Waterproof. Select touch channel use for guard pad.
Guard pad is used to detect the large area of water covering the touch panel. */
touch_pad_shield_driver_t shield_driver;/*!<Waterproof. Shield channel drive capability configuration.
Shield pad is used to shield the influence of water droplets covering the touch panel.
When the waterproof function is enabled, Touch14 is set as shield channel by default.
The larger the parasitic capacitance on the shielding channel, the higher the drive capability needs to be set.
The equivalent capacitance of the shield channel can be estimated through the reading value of the denoise channel(Touch0).*/
} touch_pad_waterproof_t;
/** Touch sensor proximity detection configuration */
@ -257,33 +261,18 @@ typedef enum {
/** Touch sensor filter configuration */
typedef struct touch_filter_config {
touch_filter_mode_t mode; /*!<Set filter mode. The input to the filter is raw data and the output is the baseline value.
Larger filter coefficients increase the stability of the baseline. */
touch_filter_mode_t mode; /*!<Set filter mode. The input of the filter is the raw value of touch reading,
and the output of the filter is involved in the judgment of the touch state. */
uint32_t debounce_cnt; /*!<Set debounce count, such as `n`. If the measured values continue to exceed
the threshold for `n+1` times, the touch sensor state changes.
Range: 0 ~ 7 */
uint32_t hysteresis_thr; /*!<Hysteresis threshold coefficient. hysteresis = hysteresis coefficient * touch threshold.
If (raw data - baseline) > (touch threshold + hysteresis), the touch channel be touched.
If (raw data - baseline) < (touch threshold - hysteresis), the touch channel be released.
Range: 0 ~ 3. The coefficient is 0: 4/32; 1: 3/32; 2: 2/32; 3: OFF */
uint32_t noise_thr; /*!<Noise threshold coefficient. noise = noise coefficient * touch threshold.
If (raw data - baseline) > (noise), the baseline stop updating.
If (raw data - baseline) < (noise), the baseline start updating.
uint32_t noise_thr; /*!<Noise threshold coefficient. Higher = More noise resistance.
The actual noise should be less than (noise coefficient * touch threshold).
Range: 0 ~ 3. The coefficient is 0: 4/8; 1: 3/8; 2: 2/8; 3: 1; */
uint32_t noise_neg_thr; /*!<Negative noise threshold coefficient. negative noise = noise coefficient * touch threshold.
If (baseline - raw data) > (negative noise), the baseline restart reset process(refer to `baseline_reset`).
If (baseline - raw data) < (negative noise), the baseline stop reset process(refer to `baseline_reset`).
Range: 0 ~ 3. The coefficient is 0: 4/8; 1: 3/8; 2: 2/8; 3: 1/8; */
uint32_t neg_noise_limit; /*!<Set the cumulative number of baseline reset processes. such as `n`. If the measured values continue to exceed
the negative noise threshold for `n+1` times, the baseline reset to raw data.
Range: 0 ~ 15 */
uint32_t jitter_step; /*!<Set jitter filter step size. Range: 0 ~ 15 */
touch_smooth_mode_t smh_lvl;/*!<Level of filter applied on the original data against large noise interference. */
#define TOUCH_DEBOUNCE_CNT_MAX (7)
#define TOUCH_HYSTERESIS_THR_MAX (3)
#define TOUCH_NOISE_THR_MAX (3)
#define TOUCH_NOISE_NEG_THR_MAX (3)
#define TOUCH_NEG_NOISE_CNT_LIMIT (15)
#define TOUCH_JITTER_STEP_MAX (15)
} touch_filter_config_t;

32
components/soc/soc/esp32s2/include/soc/rtc_cntl_reg.h
View file

@ -3114,30 +3114,30 @@ extern "C" {
#define RTC_CNTL_TOUCH_DEBOUNCE_M ((RTC_CNTL_TOUCH_DEBOUNCE_V)<<(RTC_CNTL_TOUCH_DEBOUNCE_S))
#define RTC_CNTL_TOUCH_DEBOUNCE_V 0x7
#define RTC_CNTL_TOUCH_DEBOUNCE_S 25
/* RTC_CNTL_TOUCH_HYSTERESIS : R/W ;bitpos:[24:23] ;default: 2'd1 ; */
/* RTC_CNTL_TOUCH_CONFIG3 : R/W ;bitpos:[24:23] ;default: 2'd1 ; */
/*description: */
#define RTC_CNTL_TOUCH_HYSTERESIS 0x00000003
#define RTC_CNTL_TOUCH_HYSTERESIS_M ((RTC_CNTL_TOUCH_HYSTERESIS_V)<<(RTC_CNTL_TOUCH_HYSTERESIS_S))
#define RTC_CNTL_TOUCH_HYSTERESIS_V 0x3
#define RTC_CNTL_TOUCH_HYSTERESIS_S 23
#define RTC_CNTL_TOUCH_CONFIG3 0x00000003
#define RTC_CNTL_TOUCH_CONFIG3_M ((RTC_CNTL_TOUCH_CONFIG3_V)<<(RTC_CNTL_TOUCH_CONFIG3_S))
#define RTC_CNTL_TOUCH_CONFIG3_V 0x3
#define RTC_CNTL_TOUCH_CONFIG3_S 23
/* RTC_CNTL_TOUCH_NOISE_THRES : R/W ;bitpos:[22:21] ;default: 2'd1 ; */
/*description: */
#define RTC_CNTL_TOUCH_NOISE_THRES 0x00000003
#define RTC_CNTL_TOUCH_NOISE_THRES_M ((RTC_CNTL_TOUCH_NOISE_THRES_V)<<(RTC_CNTL_TOUCH_NOISE_THRES_S))
#define RTC_CNTL_TOUCH_NOISE_THRES_V 0x3
#define RTC_CNTL_TOUCH_NOISE_THRES_S 21
/* RTC_CNTL_TOUCH_NEG_NOISE_THRES : R/W ;bitpos:[20:19] ;default: 2'd1 ; */
/* RTC_CNTL_TOUCH_CONFIG2 : R/W ;bitpos:[20:19] ;default: 2'd1 ; */
/*description: */
#define RTC_CNTL_TOUCH_NEG_NOISE_THRES 0x00000003
#define RTC_CNTL_TOUCH_NEG_NOISE_THRES_M ((RTC_CNTL_TOUCH_NEG_NOISE_THRES_V)<<(RTC_CNTL_TOUCH_NEG_NOISE_THRES_S))
#define RTC_CNTL_TOUCH_NEG_NOISE_THRES_V 0x3
#define RTC_CNTL_TOUCH_NEG_NOISE_THRES_S 19
/* RTC_CNTL_TOUCH_NEG_NOISE_LIMIT : R/W ;bitpos:[18:15] ;default: 4'd5 ; */
/*description: negative threshold counter limit*/
#define RTC_CNTL_TOUCH_NEG_NOISE_LIMIT 0x0000000F
#define RTC_CNTL_TOUCH_NEG_NOISE_LIMIT_M ((RTC_CNTL_TOUCH_NEG_NOISE_LIMIT_V)<<(RTC_CNTL_TOUCH_NEG_NOISE_LIMIT_S))
#define RTC_CNTL_TOUCH_NEG_NOISE_LIMIT_V 0xF
#define RTC_CNTL_TOUCH_NEG_NOISE_LIMIT_S 15
#define RTC_CNTL_TOUCH_CONFIG2 0x00000003
#define RTC_CNTL_TOUCH_CONFIG2_M ((RTC_CNTL_TOUCH_CONFIG2_V)<<(RTC_CNTL_TOUCH_CONFIG2_S))
#define RTC_CNTL_TOUCH_CONFIG2_V 0x3
#define RTC_CNTL_TOUCH_CONFIG2_S 19
/* RTC_CNTL_TOUCH_CONFIG1 : R/W ;bitpos:[18:15] ;default: 4'd5 ; */
/*description: */
#define RTC_CNTL_TOUCH_CONFIG1 0x0000000F
#define RTC_CNTL_TOUCH_CONFIG1_M ((RTC_CNTL_TOUCH_CONFIG1_V)<<(RTC_CNTL_TOUCH_CONFIG1_S))
#define RTC_CNTL_TOUCH_CONFIG1_V 0xF
#define RTC_CNTL_TOUCH_CONFIG1_S 15
/* RTC_CNTL_TOUCH_JITTER_STEP : R/W ;bitpos:[14:11] ;default: 4'd1 ; */
/*description: touch jitter step*/
#define RTC_CNTL_TOUCH_JITTER_STEP 0x0000000F

6
components/soc/soc/esp32s2/include/soc/rtc_cntl_struct.h
View file

@ -800,10 +800,10 @@ typedef volatile struct {
uint32_t reserved0: 9;
uint32_t touch_smooth_lvl: 2;
uint32_t touch_jitter_step: 4; /*touch jitter step*/
uint32_t touch_neg_noise_limit: 4; /*negative threshold counter limit*/
uint32_t touch_neg_noise_thres: 2;
uint32_t config1: 4;
uint32_t config2: 2;
uint32_t touch_noise_thres: 2;
uint32_t touch_hysteresis: 2;
uint32_t config3: 2;
uint32_t touch_debounce: 3; /*debounce counter*/
uint32_t touch_filter_mode: 3; /*0: IIR ? 1: IIR ? 2: IIR 1/8 3: Jitter*/
uint32_t touch_filter_en: 1; /*touch filter enable*/

2
components/soc/soc/esp32s2/include/soc/sens_reg.h
View file

@ -631,7 +631,7 @@ extern "C" {
#define SENS_TOUCH_DENOISE_END_V 0x1
#define SENS_TOUCH_DENOISE_END_S 18
/* SENS_TOUCH_DATA_SEL : R/W ;bitpos:[17:16] ;default: 2'd0 ; */
/*description: 3: smooth data 2: baseline 1 0: raw_data*/
/*description: 3: smooth data 2: benchmark 1 0: raw_data*/
#define SENS_TOUCH_DATA_SEL 0x00000003
#define SENS_TOUCH_DATA_SEL_M ((SENS_TOUCH_DATA_SEL_V)<<(SENS_TOUCH_DATA_SEL_S))
#define SENS_TOUCH_DATA_SEL_V 0x3

2
components/soc/soc/esp32s2/include/soc/sens_struct.h
View file

@ -225,7 +225,7 @@ typedef volatile struct {
struct {
uint32_t touch_outen: 15; /*touch controller output enable*/
uint32_t touch_status_clr: 1; /*clear all touch active status*/
uint32_t touch_data_sel: 2; /*3: smooth data 2: baseline 1 0: raw_data*/
uint32_t touch_data_sel: 2; /*3: smooth data 2: benchmark 1 0: raw_data*/
uint32_t touch_denoise_end: 1; /*touch_denoise_done*/
uint32_t touch_unit_end: 1; /*touch_unit_done*/
uint32_t touch_approach_pad2: 4; /*indicate which pad is approach pad2*/

4
components/soc/soc/esp32s2/include/soc/touch_sensor_caps.h
View file

@ -24,9 +24,7 @@ extern "C" {
#define SOC_TOUCH_PAD_MEASURE_WAIT (0xFF) /*!<The timer frequency is 8Mhz, the max value is 0xff */
#define SOC_TOUCH_PAD_THRESHOLD_MAX (0x1FFFFF) /*!<If set touch threshold max value, The touch sensor can't be in touched status */
#define SOC_TOUCH_SHIELD_CHANNEL (14) /*!< The waterproof function includes a shielded channel (TOUCH_PAD_NUM14)
The shielded channel outputs the same signal as the channel being measured.
It is generally designed as a grid and is placed around the touch buttons. */
#define SOC_TOUCH_SHIELD_CHANNEL (14) /*!< The waterproof function includes a shielded channel (TOUCH_PAD_NUM14) */
#define SOC_TOUCH_DENOISE_CHANNEL (0) /*!< T0 is an internal channel that does not have a corresponding external GPIO.
T0 will work simultaneously with the measured channel Tn. Finally, the actual
measured value of Tn is the value after subtracting lower bits of T0. */

126
components/soc/src/esp32s2/include/hal/touch_sensor_hal.h
View file

@ -182,32 +182,33 @@ void touch_hal_filter_get_config(touch_filter_config_t *filter_info);
#define touch_hal_filter_read_smooth(touch_num, smooth_data) touch_ll_filter_read_smooth(touch_num, smooth_data)
/**
* Get baseline value of touch sensor.
* Get benchmark value of touch sensor.
*
* @note After initialization, the baseline value is the maximum during the first measurement period.
* @note After initialization, the benchmark value is the maximum during the first measurement period.
* @param touch_num touch pad index
* @param touch_value pointer to accept touch sensor value
*/
#define touch_hal_filter_read_baseline(touch_num, basedata) touch_ll_filter_read_baseline(touch_num, basedata)
#define touch_hal_read_benchmark(touch_num, benchmark) touch_ll_read_benchmark(touch_num, benchmark)
/**
* Force reset baseline to raw data of touch sensor.
* Force reset benchmark to raw data of touch sensor.
*
* @param touch_num touch pad index
* - TOUCH_PAD_MAX Reset basaline of all channels.
*/
#define touch_hal_filter_reset_baseline(touch_num) touch_ll_filter_reset_baseline(touch_num)
#define touch_hal_reset_benchmark(touch_num) touch_ll_reset_benchmark(touch_num)
/**
* Set filter mode. The input to the filter is raw data and the output is the baseline value.
* Larger filter coefficients increase the stability of the baseline.
* Set filter mode. The input of the filter is the raw value of touch reading,
* and the output of the filter is involved in the judgment of the touch state.
*
* @param mode Filter mode type. Refer to `touch_filter_mode_t`.
*/
#define touch_hal_filter_set_filter_mode(mode) touch_ll_filter_set_filter_mode(mode)
/**
* Get filter mode. The input to the filter is raw data and the output is the baseline value.
* Get filter mode. The input of the filter is the raw value of touch reading,
* and the output of the filter is involved in the judgment of the touch state.
*
* @param mode Filter mode type. Refer to `touch_filter_mode_t`.
*/
@ -229,89 +230,47 @@ void touch_hal_filter_get_config(touch_filter_config_t *filter_info);
#define touch_hal_filter_get_debounce(dbc_cnt) touch_ll_filter_get_debounce(dbc_cnt)
/**
* Set hysteresis threshold coefficient. hysteresis = hysteresis_thr * touch_threshold.
* If (raw data - baseline) > (touch threshold + hysteresis), the touch channel be touched.
* If (raw data - baseline) < (touch threshold - hysteresis), the touch channel be released.
* Range: 0 ~ 3. The coefficient is 0: 1/8; 1: 3/32; 2: 1/16; 3: 1/32
*
* @param hys_thr hysteresis coefficient.
*/
#define touch_hal_filter_set_hysteresis(hys_thr) touch_ll_filter_set_hysteresis(hys_thr)
/**
* Get hysteresis threshold coefficient. hysteresis = hysteresis_thr * touch_threshold.
* If (raw data - baseline) > (touch threshold + hysteresis), the touch channel be touched.
* If (raw data - baseline) < (touch threshold - hysteresis), the touch channel be released.
* Range: 0 ~ 3. The coefficient is 0: 1/8; 1: 3/32; 2: 1/16; 3: 1/32
*
* @param hys_thr hysteresis coefficient.
*/
#define touch_hal_filter_get_hysteresis(hys_thr) touch_ll_filter_get_hysteresis(hys_thr)
/**
* Set noise threshold coefficient. noise = noise_thr * touch threshold.
* If (raw data - baseline) > (noise), the baseline stop updating.
* If (raw data - baseline) < (noise), the baseline start updating.
* Range: 0 ~ 3. The coefficient is 0: 1/2; 1: 3/8; 2: 1/4; 3: 1/8;
* Set noise threshold coefficient. Higher = More noise resistance.
* The actual noise should be less than (noise coefficient * touch threshold).
* Range: 0 ~ 3. The coefficient is 0: 4/8; 1: 3/8; 2: 2/8; 3: 1;
*
* @param hys_thr Noise threshold coefficient.
*/
#define touch_hal_filter_set_noise_thres(noise_thr) touch_ll_filter_set_noise_thres(noise_thr)
/**
* Get noise threshold coefficient. noise = noise_thr * touch threshold.
* If (raw data - baseline) > (noise), the baseline stop updating.
* If (raw data - baseline) < (noise), the baseline start updating.
* Range: 0 ~ 3. The coefficient is 0: 1/2; 1: 3/8; 2: 1/4; 3: 1/8;
* Get noise threshold coefficient. Higher = More noise resistance.
* The actual noise should be less than (noise coefficient * touch threshold).
* Range: 0 ~ 3. The coefficient is 0: 4/8; 1: 3/8; 2: 2/8; 3: 1;
*
* @param noise_thr Noise threshold coefficient.
*/
#define touch_hal_filter_get_noise_thres(noise_thr) touch_ll_filter_get_noise_thres(noise_thr)
/**
* Set negative noise threshold coefficient. negative noise = noise_neg_thr * touch threshold.
* If (baseline - raw data) > (negative noise), the baseline restart reset process(refer to `baseline_reset`).
* If (baseline - raw data) < (negative noise), the baseline stop reset process(refer to `baseline_reset`).
* Range: 0 ~ 3. The coefficient is 0: 1/2; 1: 3/8; 2: 1/4; 3: 1/8;
*
* @param noise_thr Negative threshold coefficient.
*/
#define touch_hal_filter_set_neg_noise_thres(noise_thr) touch_ll_filter_set_neg_noise_thres(noise_thr)
/**
* Get negative noise threshold coefficient. negative noise = noise_neg_thr * touch threshold.
* If (baseline - raw data) > (negative noise), the baseline restart reset process(refer to `baseline_reset`).
* If (baseline - raw data) < (negative noise), the baseline stop reset process(refer to `baseline_reset`).
* Range: 0 ~ 3. The coefficient is 0: 1/2; 1: 3/8; 2: 1/4; 3: 1/8;
*
* @param noise_thr Negative noise threshold coefficient.
*/
#define touch_hal_filter_get_neg_noise_thres(noise_thr) touch_ll_filter_get_neg_noise_thres(noise_thr)
/**
* Set the cumulative number of baseline reset processes. such as `n`. If the measured values continue to exceed
* the negative noise threshold for `n` times, the baseline reset to raw data.
* Set the cumulative number of benchmark reset processes. such as `n`. If the measured values continue to exceed
* the negative noise threshold for `n` times, the benchmark reset to raw data.
* Range: 0 ~ 15
*
* @param reset_cnt The cumulative number of baseline reset processes.
* @param reset_cnt The cumulative number of benchmark reset processes.
*/
#define touch_hal_filter_set_baseline_reset(reset_cnt) touch_ll_filter_set_baseline_reset(reset_cnt)
#define touch_hal_filter_set_benchmark_reset(reset_cnt) touch_ll_filter_set_benchmark_reset(reset_cnt)
/**
* Get the cumulative number of baseline reset processes. such as `n`. If the measured values continue to exceed
* the negative noise threshold for `n` times, the baseline reset to raw data.
* Get the cumulative number of benchmark reset processes. such as `n`. If the measured values continue to exceed
* the negative noise threshold for `n` times, the benchmark reset to raw data.
* Range: 0 ~ 15
*
* @param reset_cnt The cumulative number of baseline reset processes.
* @param reset_cnt The cumulative number of benchmark reset processes.
*/
#define touch_hal_filter_get_baseline_reset(reset_cnt) touch_ll_filter_get_baseline_reset(reset_cnt)
#define touch_hal_filter_get_benchmark_reset(reset_cnt) touch_ll_filter_get_benchmark_reset(reset_cnt)
/**
* Set jitter filter step size.
* If filter mode is jitter, should set filter step for jitter.
* Range: 0 ~ 15
*
* @param step The step size of the data change when the baseline is updated.
* @param step The step size of the data change.
*/
#define touch_hal_filter_set_jitter_step(step) touch_ll_filter_set_jitter_step(step)
@ -320,7 +279,7 @@ void touch_hal_filter_get_config(touch_filter_config_t *filter_info);
* If filter mode is jitter, should set filter step for jitter.
* Range: 0 ~ 15
*
* @param step The step size of the data change when the baseline is updated.
* @param step The step size of the data change.
*/
#define touch_hal_filter_get_jitter_step(step) touch_ll_filter_get_jitter_step(step)
@ -453,11 +412,11 @@ void touch_hal_denoise_enable(void);
/**
* Set parameter of waterproof function.
* The waterproof function includes a shielded channel (TOUCH_PAD_NUM14) and a guard channel.
* The shielded channel outputs the same signal as the channel being measured.
* It is generally designed as a grid and is placed around the touch buttons.
* The shielded channel does not follow the measurement signal of the protection channel.
* So that the guard channel can detect a large area of water.
*
* The waterproof function includes a shielded channel (TOUCH_PAD_NUM14) and a guard channel.
* Guard pad is used to detect the large area of water covering the touch panel.
* Shield pad is used to shield the influence of water droplets covering the touch panel.
* It is generally designed as a grid and is placed around the touch buttons.
*
* @param waterproof parameter of waterproof
*/
@ -472,21 +431,12 @@ void touch_hal_waterproof_get_config(touch_pad_waterproof_t *waterproof);
/**
* Enable parameter of waterproof function.
* The waterproof function includes a shielded channel (TOUCH_PAD_NUM14) and a guard channel.
* The shielded channel outputs the same signal as the channel being measured.
* It is generally designed as a grid and is placed around the touch buttons.
* The shielded channel does not follow the measurement signal of the protection channel.
* So that the guard channel can detect a large area of water.
* Should be called after function ``touch_hal_waterproof_set_config``.
*/
void touch_hal_waterproof_enable(void);
/**
* Disable parameter of waterproof function.
* The waterproof function includes a shielded channel (TOUCH_PAD_NUM14) and a guard channel.
* The shielded channel outputs the same signal as the channel being measured.
* It is generally designed as a grid and is placed around the touch buttons.
* The shielded channel does not follow the measurement signal of the protection channel.
* So that the guard channel can detect a large area of water.
*/
#define touch_hal_waterproof_disable() touch_ll_waterproof_disable()
@ -591,7 +541,7 @@ void touch_hal_sleep_channel_enable(touch_pad_t pad_num, bool enable);
/**
* Set the trigger threshold of touch sensor in deep sleep.
* The threshold determines the sensitivity of the touch sensor.
* The threshold is the original value of the trigger state minus the baseline value.
* The threshold is the original value of the trigger state minus the benchmark value.
*
* @note The threshold at sleep is the same as the threshold before sleep.
*/
@ -600,7 +550,7 @@ void touch_hal_sleep_channel_enable(touch_pad_t pad_num, bool enable);
/**
* Get the trigger threshold of touch sensor in deep sleep.
* The threshold determines the sensitivity of the touch sensor.
* The threshold is the original value of the trigger state minus the baseline value.
* The threshold is the original value of the trigger state minus the benchmark value.
*
* @note The threshold at sleep is the same as the threshold before sleep.
*/
@ -617,11 +567,11 @@ void touch_hal_sleep_channel_enable(touch_pad_t pad_num, bool enable);
#define touch_hal_sleep_disable_approach() touch_ll_sleep_disable_approach()
/**
* Read baseline of touch sensor for sleep pad.
* Read benchmark of touch sensor for sleep pad.
*
* @param baseline Pointer to accept touch sensor baseline value.
* @param benchmark Pointer to accept touch sensor benchmark value.
*/
#define touch_hal_sleep_read_baseline(baseline) touch_ll_sleep_read_baseline(baseline)
#define touch_hal_sleep_read_benchmark(benchmark) touch_ll_sleep_read_benchmark(benchmark)
/**
* Read smooth data of touch sensor for sleep pad.
@ -634,9 +584,9 @@ void touch_hal_sleep_channel_enable(touch_pad_t pad_num, bool enable);
#define touch_hal_sleep_read_data(raw_data) touch_ll_sleep_read_data(raw_data)
/**
* Reset baseline of touch sensor for sleep pad.
* Reset benchmark of touch sensor for sleep pad.
*/
#define touch_hal_sleep_reset_baseline() touch_ll_sleep_reset_baseline()
#define touch_hal_sleep_reset_benchmark() touch_ll_sleep_reset_benchmark()
/**
* Read debounce of touch sensor for sleep pad.

149
components/soc/src/esp32s2/include/hal/touch_sensor_ll.h
View file

@ -32,7 +32,7 @@ extern "C" {
#endif
#define TOUCH_LL_READ_RAW 0x0
#define TOUCH_LL_READ_BASELINE 0x2
#define TOUCH_LL_READ_BENCHMARK 0x2
#define TOUCH_LL_READ_SMOOTH 0x3
#define TOUCH_LL_TIMER_FORCE_DONE 0x3
#define TOUCH_LL_TIMER_DONE 0x0
@ -307,7 +307,7 @@ static inline void touch_ll_start_sw_meas(void)
/**
* Set the trigger threshold of touch sensor.
* The threshold determines the sensitivity of the touch sensor.
* The threshold is the original value of the trigger state minus the baseline value.
* The threshold is the original value of the trigger state minus the benchmark value.
*
* @note If set "TOUCH_PAD_THRESHOLD_MAX", the touch is never be trigered.
* @param touch_num touch pad index
@ -321,7 +321,7 @@ static inline void touch_ll_set_threshold(touch_pad_t touch_num, uint32_t thresh
/**
* Get the trigger threshold of touch sensor.
* The threshold determines the sensitivity of the touch sensor.
* The threshold is the original value of the trigger state minus the baseline value.
* The threshold is the original value of the trigger state minus the benchmark value.
*
* @param touch_num touch pad index.
* @param threshold pointer to accept threshold.
@ -635,28 +635,28 @@ static inline void IRAM_ATTR touch_ll_filter_read_smooth(touch_pad_t touch_num,
}
/**
* Get baseline value of touch sensor.
* Get benchmark value of touch sensor.
*
* @note After initialization, the baseline value is the maximum during the first measurement period.
* @note After initialization, the benchmark value is the maximum during the first measurement period.
* @param touch_num touch pad index
* @param touch_value pointer to accept touch sensor value
*/
static inline void IRAM_ATTR touch_ll_filter_read_baseline(touch_pad_t touch_num, uint32_t *basedata)
static inline void IRAM_ATTR touch_ll_read_benchmark(touch_pad_t touch_num, uint32_t *benchmark)
{
SENS.sar_touch_conf.touch_data_sel = TOUCH_LL_READ_BASELINE;
*basedata = SENS.sar_touch_status[touch_num - 1].touch_pad_data;
SENS.sar_touch_conf.touch_data_sel = TOUCH_LL_READ_BENCHMARK;
*benchmark = SENS.sar_touch_status[touch_num - 1].touch_pad_data;
}
/**
* Force reset baseline to raw data of touch sensor.
* Force reset benchmark to raw data of touch sensor.
*
* @note If call this API, make sure enable clock gate(`touch_ll_clkgate`) first.
* @param touch_num touch pad index
* - TOUCH_PAD_MAX Reset basaline of all channels.
*/
static inline void touch_ll_filter_reset_baseline(touch_pad_t touch_num)
static inline void touch_ll_reset_benchmark(touch_pad_t touch_num)
{
/* Clear touch channels to initialize the channel value (baseline, raw_data).
/* Clear touch channels to initialize the channel value (benchmark, raw_data).
*/
if (touch_num == TOUCH_PAD_MAX) {
SENS.sar_touch_chn_st.touch_channel_clr = SOC_TOUCH_SENSOR_BIT_MASK_MAX;
@ -666,8 +666,8 @@ static inline void touch_ll_filter_reset_baseline(touch_pad_t touch_num)
}
/**
* Set filter mode. The input to the filter is raw data and the output is the baseline value.
* Larger filter coefficients increase the stability of the baseline.
* Set filter mode. The input of the filter is the raw value of touch reading,
* and the output of the filter is involved in the judgment of the touch state.
*
* @param mode Filter mode type. Refer to `touch_filter_mode_t`.
*/
@ -677,7 +677,8 @@ static inline void touch_ll_filter_set_filter_mode(touch_filter_mode_t mode)
}
/**
* Get filter mode. The input to the filter is raw data and the output is the baseline value.
* Get filter mode. The input of the filter is the raw value of touch reading,
* and the output of the filter is involved in the judgment of the touch state.
*
* @param mode Filter mode type. Refer to `touch_filter_mode_t`.
*/
@ -729,35 +730,8 @@ static inline void touch_ll_filter_get_debounce(uint32_t *dbc_cnt)
}
/**
* Set hysteresis threshold coefficient. hysteresis = hysteresis_thr * touch_threshold.
* If (raw data - baseline) > (touch threshold + hysteresis), the touch channel be touched.
* If (raw data - baseline) < (touch threshold - hysteresis), the touch channel be released.
* Range: 0 ~ 3. The coefficient is 0: 4/32; 1: 3/32; 2: 2/32; 3: OFF.
*
* @param hys_thr hysteresis coefficient.
*/
static inline void touch_ll_filter_set_hysteresis(uint32_t hys_thr)
{
RTCCNTL.touch_filter_ctrl.touch_hysteresis = hys_thr;
}
/**
* Get hysteresis threshold coefficient. hysteresis = hysteresis_thr * touch_threshold.
* If (raw data - baseline) > (touch threshold + hysteresis), the touch channel be touched.
* If (raw data - baseline) < (touch threshold - hysteresis), the touch channel be released.
* Range: 0 ~ 3. The coefficient is 0: 4/32; 1: 3/32; 2: 2/32; 3: OFF.
*
* @param hys_thr hysteresis coefficient.
*/
static inline void touch_ll_filter_get_hysteresis(uint32_t *hys_thr)
{
*hys_thr = RTCCNTL.touch_filter_ctrl.touch_hysteresis;
}
/**
* Set noise threshold coefficient. noise = noise_thr * touch threshold.
* If (raw data - baseline) > (noise), the baseline stop updating.
* If (raw data - baseline) < (noise), the baseline start updating.
* Set noise threshold coefficient. Higher = More noise resistance.
* The actual noise should be less than (noise coefficient * touch threshold).
* Range: 0 ~ 3. The coefficient is 0: 4/8; 1: 3/8; 2: 2/8; 3: 1;
*
* @param hys_thr Noise threshold coefficient.
@ -765,12 +739,14 @@ static inline void touch_ll_filter_get_hysteresis(uint32_t *hys_thr)
static inline void touch_ll_filter_set_noise_thres(uint32_t noise_thr)
{
RTCCNTL.touch_filter_ctrl.touch_noise_thres = noise_thr;
RTCCNTL.touch_filter_ctrl.config2 = noise_thr;
RTCCNTL.touch_filter_ctrl.config1 = 0xF;
RTCCNTL.touch_filter_ctrl.config3 = 2;
}
/**
* Get noise threshold coefficient. noise = noise_thr * touch threshold.
* If (raw data - baseline) > (noise), the baseline stop updating.
* If (raw data - baseline) < (noise), the baseline start updating.
* Get noise threshold coefficient. Higher = More noise resistance.
* The actual noise should be less than (noise coefficient * touch threshold).
* Range: 0 ~ 3. The coefficient is 0: 4/8; 1: 3/8; 2: 2/8; 3: 1;
*
* @param noise_thr Noise threshold coefficient.
@ -780,62 +756,12 @@ static inline void touch_ll_filter_get_noise_thres(uint32_t *noise_thr)
*noise_thr = RTCCNTL.touch_filter_ctrl.touch_noise_thres;
}
/**
* Set negative noise threshold coefficient. negative noise = noise_neg_thr * touch threshold.
* If (baseline - raw data) > (negative noise), the baseline restart reset process(refer to `baseline_reset`).
* If (baseline - raw data) < (negative noise), the baseline stop reset process(refer to `baseline_reset`).
* Range: 0 ~ 3. The coefficient is 0: 1/2; 1: 3/8; 2: 1/4; 3: 1/8;
*
* @param noise_thr Negative threshold coefficient.
*/
static inline void touch_ll_filter_set_neg_noise_thres(uint32_t noise_thr)
{
RTCCNTL.touch_filter_ctrl.touch_neg_noise_thres = noise_thr;
}
/**
* Get negative noise threshold coefficient. negative noise = noise_neg_thr * touch threshold.
* If (baseline - raw data) > (negative noise), the baseline restart reset process(refer to `baseline_reset`).
* If (baseline - raw data) < (negative noise), the baseline stop reset process(refer to `baseline_reset`).
* Range: 0 ~ 3. The coefficient is 0: 1/2; 1: 3/8; 2: 1/4; 3: 1/8;
*
* @param noise_thr Negative noise threshold coefficient.
*/
static inline void touch_ll_filter_get_neg_noise_thres(uint32_t *noise_thr)
{
*noise_thr = RTCCNTL.touch_filter_ctrl.touch_neg_noise_thres;
}
/**
* Set the cumulative number of baseline reset processes. such as `n`. If the measured values continue to exceed
* the negative noise threshold for `n+1` times, the baseline reset to raw data.
* Range: 0 ~ 15
*
* @param reset_cnt The cumulative number of baseline reset processes.
*/
static inline void touch_ll_filter_set_baseline_reset(uint32_t reset_cnt)
{
RTCCNTL.touch_filter_ctrl.touch_neg_noise_limit = reset_cnt;
}
/**
* Get the cumulative number of baseline reset processes. such as `n`. If the measured values continue to exceed
* the negative noise threshold for `n+1` times, the baseline reset to raw data.
* Range: 0 ~ 15
*
* @param reset_cnt The cumulative number of baseline reset processes.
*/
static inline void touch_ll_filter_get_baseline_reset(uint32_t *reset_cnt)
{
*reset_cnt = RTCCNTL.touch_filter_ctrl.touch_neg_noise_limit;
}
/**
* Set jitter filter step size.
* If filter mode is jitter, should set filter step for jitter.
* Range: 0 ~ 15
*
* @param step The step size of the data change when the baseline is updated.
* @param step The step size of the data change.
*/
static inline void touch_ll_filter_set_jitter_step(uint32_t step)
{
@ -847,7 +773,7 @@ static inline void touch_ll_filter_set_jitter_step(uint32_t step)
* If filter mode is jitter, should set filter step for jitter.
* Range: 0 ~ 15
*
* @param step The step size of the data change when the baseline is updated.
* @param step The step size of the data change.
*/
static inline void touch_ll_filter_get_jitter_step(uint32_t *step)
{
@ -1004,11 +930,11 @@ static inline void touch_ll_waterproof_get_sheild_driver(touch_pad_shield_driver
/**
* Enable parameter of waterproof function.
*
* The waterproof function includes a shielded channel (TOUCH_PAD_NUM14) and a guard channel.
* The shielded channel outputs the same signal as the channel being measured.
* Guard pad is used to detect the large area of water covering the touch panel.
* Shield pad is used to shield the influence of water droplets covering the touch panel.
* It is generally designed as a grid and is placed around the touch buttons.
* The shielded channel does not follow the measurement signal of the protection channel.
* So that the guard channel can detect a large area of water.
*/
static inline void touch_ll_waterproof_enable(void)
{
@ -1017,11 +943,6 @@ static inline void touch_ll_waterproof_enable(void)
/**
* Disable parameter of waterproof function.
* The waterproof function includes a shielded channel (TOUCH_PAD_NUM14) and a guard channel.
* The shielded channel outputs the same signal as the channel being measured.
* It is generally designed as a grid and is placed around the touch buttons.
* The shielded channel does not follow the measurement signal of the protection channel.
* So that the guard channel can detect a large area of water.
*/
static inline void touch_ll_waterproof_disable(void)
{
@ -1135,7 +1056,7 @@ static inline void touch_ll_sleep_get_channel_num(touch_pad_t *touch_num)
/**
* Set the trigger threshold of touch sensor in deep sleep.
* The threshold determines the sensitivity of the touch sensor.
* The threshold is the original value of the trigger state minus the baseline value.
* The threshold is the original value of the trigger state minus the benchmark value.
*
* @note In general, the touch threshold during sleep can use the threshold parameter parameters before sleep.
*/
@ -1147,7 +1068,7 @@ static inline void touch_ll_sleep_set_threshold(uint32_t touch_thres)
/**
* Get the trigger threshold of touch sensor in deep sleep.
* The threshold determines the sensitivity of the touch sensor.
* The threshold is the original value of the trigger state minus the baseline value.
* The threshold is the original value of the trigger state minus the benchmark value.
*
* @note In general, the touch threshold during sleep can use the threshold parameter parameters before sleep.
*/
@ -1181,14 +1102,14 @@ static inline bool touch_ll_sleep_get_approach_status(void)
}
/**
* Read baseline of touch sensor for sleep pad.
* Read benchmark of touch sensor for sleep pad.
*
* @param baseline Pointer to accept touch sensor baseline value.
* @param benchmark Pointer to accept touch sensor benchmark value.
*/
static inline void touch_ll_sleep_read_baseline(uint32_t *baseline)
static inline void touch_ll_sleep_read_benchmark(uint32_t *benchmark)
{
SENS.sar_touch_conf.touch_data_sel = TOUCH_LL_READ_BASELINE;
*baseline = SENS.sar_touch_slp_status.touch_slp_data;
SENS.sar_touch_conf.touch_data_sel = TOUCH_LL_READ_BENCHMARK;
*benchmark = SENS.sar_touch_slp_status.touch_slp_data;
}
static inline void touch_ll_sleep_read_smooth(uint32_t *smooth_data)
@ -1205,7 +1126,7 @@ static inline void touch_ll_sleep_read_data(uint32_t *raw_data)
*raw_data = SENS.sar_touch_status[touch_num - 1].touch_pad_data;
}
static inline void touch_ll_sleep_reset_baseline(void)
static inline void touch_ll_sleep_reset_benchmark(void)
{
RTCCNTL.touch_approach.touch_slp_channel_clr = 1;
}

18
components/soc/src/esp32s2/touch_sensor_hal.c
View file

@ -28,17 +28,17 @@ void touch_hal_init(void)
touch_ll_set_voltage_low(TOUCH_PAD_LOW_VOLTAGE_THRESHOLD);
touch_ll_set_voltage_attenuation(TOUCH_PAD_ATTEN_VOLTAGE_THRESHOLD);
touch_ll_set_idle_channel_connect(TOUCH_PAD_IDLE_CH_CONNECT_DEFAULT);
/* Clear touch channels to initialize the channel value (baseline, raw_data).
/* Clear touch channels to initialize the channel value (benchmark, raw_data).
* Note: Should call it after enable clock gate. */
touch_ll_clkgate(true); // Enable clock gate for touch sensor.
touch_ll_filter_reset_baseline(TOUCH_PAD_MAX);
touch_ll_sleep_reset_baseline();
touch_ll_reset_benchmark(TOUCH_PAD_MAX);
touch_ll_sleep_reset_benchmark();
}
void touch_hal_deinit(void)
{
touch_ll_filter_reset_baseline(TOUCH_PAD_MAX);
touch_ll_sleep_reset_baseline();
touch_ll_reset_benchmark(TOUCH_PAD_MAX);
touch_ll_sleep_reset_benchmark();
touch_ll_stop_fsm();
touch_ll_clkgate(false);
touch_ll_clear_channel_mask(SOC_TOUCH_SENSOR_BIT_MASK_MAX);
@ -58,10 +58,7 @@ void touch_hal_filter_set_config(const touch_filter_config_t *filter_info)
{
touch_ll_filter_set_filter_mode(filter_info->mode);
touch_ll_filter_set_debounce(filter_info->debounce_cnt);
touch_ll_filter_set_hysteresis(filter_info->hysteresis_thr);
touch_ll_filter_set_noise_thres(filter_info->noise_thr);
touch_ll_filter_set_neg_noise_thres(filter_info->noise_neg_thr);
touch_ll_filter_set_baseline_reset(filter_info->neg_noise_limit);
touch_ll_filter_set_jitter_step(filter_info->jitter_step);
touch_ll_filter_set_smooth_mode(filter_info->smh_lvl);
}
@ -70,10 +67,7 @@ void touch_hal_filter_get_config(touch_filter_config_t *filter_info)
{
touch_ll_filter_get_filter_mode(&filter_info->mode);
touch_ll_filter_get_debounce(&filter_info->debounce_cnt);
touch_ll_filter_get_hysteresis(&filter_info->hysteresis_thr);
touch_ll_filter_get_noise_thres(&filter_info->noise_thr);
touch_ll_filter_get_neg_noise_thres(&filter_info->noise_neg_thr);
touch_ll_filter_get_baseline_reset(&filter_info->neg_noise_limit);
touch_ll_filter_get_jitter_step(&filter_info->jitter_step);
touch_ll_filter_get_smooth_mode(&filter_info->smh_lvl);
}
@ -149,7 +143,7 @@ void touch_hal_sleep_channel_enable(touch_pad_t pad_num, bool enable)
/* Default change touch dbias to self-dbias to save power.
Measuring the sleep pad threshold after `sleep_channel_set_config`. */
touch_ll_sleep_low_power(true);
touch_ll_sleep_reset_baseline();
touch_ll_sleep_reset_benchmark();
} else {
touch_ll_sleep_set_channel_num(TOUCH_PAD_NUM0);
}

11
examples/peripherals/touch_pad_interrupt/main/esp32s2/tp_interrupt_main.c
View file

@ -41,8 +41,8 @@ static const touch_pad_t button[TOUCH_BUTTON_NUM] = {
/*
* Touch threshold. The threshold determines the sensitivity of the touch.
* This threshold is derived by testing changes in readings from different touch channels.
* If (raw_data - baseline) > baseline * threshold, the pad be activated.
* If (raw_data - baseline) < baseline * threshold, the pad be inactivated.
* If (raw_data - benchmark) > benchmark * threshold, the pad be activated.
* If (raw_data - benchmark) < benchmark * threshold, the pad be inactivated.
*/
static const float button_threshold[TOUCH_BUTTON_NUM] = {
0.2, // 20%.
@ -74,8 +74,8 @@ static void tp_example_set_thresholds(void)
{
uint32_t touch_value;
for (int i = 0; i < TOUCH_BUTTON_NUM; i++) {
//read baseline value
touch_pad_filter_read_baseline(button[i], &touch_value);
//read benchmark value
touch_pad_read_benchmark(button[i], &touch_value);
//set interrupt threshold.
touch_pad_set_thresh(button[i], touch_value * button_threshold[i]);
ESP_LOGI(TAG, "touch pad [%d] base %d, thresh %d", \
@ -89,10 +89,7 @@ static void touchsensor_filter_set(touch_filter_mode_t mode)
touch_filter_config_t filter_info = {
.mode = mode, // Test jitter and filter 1/4.
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 3%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
.smh_lvl = TOUCH_PAD_SMOOTH_IIR_2,
};

3
examples/system/deep_sleep/main/deep_sleep_example_main.c
View file

@ -190,10 +190,7 @@ void app_main(void)
touch_filter_config_t filter_info = {
.mode = TOUCH_PAD_FILTER_IIR_16,
.debounce_cnt = 1, // 1 time count.
.hysteresis_thr = 3, // 3%
.noise_thr = 0, // 50%
.noise_neg_thr = 0, // 50%
.neg_noise_limit = 10, // 10 time count.
.jitter_step = 4, // use for jitter mode.
.smh_lvl = TOUCH_PAD_SMOOTH_IIR_2,
};