OVMS3-idf/components/driver/test/test_rmt.c

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// RMT driver unit test is based on extended NEC protocol
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// Please don't use channel number: SOC_RMT_CHANNELS_NUM - 1
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#include <stdio.h>
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#include <string.h>
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#include "sdkconfig.h"
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#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_log.h"
#include "driver/rmt.h"
#include "ir_tools.h"
#include "unity.h"
#include "test_utils.h"
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// CI ONLY: Don't connect any other signals to this GPIO
#define RMT_DATA_IO (12) // bind signal RMT_SIG_OUT0_IDX and RMT_SIG_IN0_IDX on the same GPIO
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#define RMT_TESTBENCH_FLAGS_ALWAYS_ON (1<<0)
#define RMT_TESTBENCH_FLAGS_CARRIER_ON (1<<1)
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#define RMT_TESTBENCH_FLAGS_LOOP_ON (1<<2)
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static const char *TAG = "RMT.test";
static ir_builder_t *s_ir_builder = NULL;
static ir_parser_t *s_ir_parser = NULL;
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static void rmt_setup_testbench(int tx_channel, int rx_channel, uint32_t flags)
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{
// RMT channel configuration
if (tx_channel >= 0) {
rmt_config_t tx_config = RMT_DEFAULT_CONFIG_TX(RMT_DATA_IO, tx_channel);
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if (flags & RMT_TESTBENCH_FLAGS_ALWAYS_ON) {
tx_config.flags |= RMT_CHANNEL_FLAGS_ALWAYS_ON;
}
if (flags & RMT_TESTBENCH_FLAGS_CARRIER_ON) {
tx_config.tx_config.carrier_en = true;
}
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#if SOC_RMT_SUPPORT_TX_LOOP_COUNT
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if (flags & RMT_TESTBENCH_FLAGS_LOOP_ON) {
tx_config.tx_config.loop_en = true;
tx_config.tx_config.loop_count = 10;
}
#endif
TEST_ESP_OK(rmt_config(&tx_config));
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}
if (rx_channel >= 0) {
rmt_config_t rx_config = RMT_DEFAULT_CONFIG_RX(RMT_DATA_IO, rx_channel);
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if (flags & RMT_TESTBENCH_FLAGS_ALWAYS_ON) {
rx_config.flags |= RMT_CHANNEL_FLAGS_ALWAYS_ON;
}
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#if SOC_RMT_SUPPORT_RX_DEMODULATION
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if (flags & RMT_TESTBENCH_FLAGS_CARRIER_ON) {
rx_config.rx_config.rm_carrier = true;
rx_config.rx_config.carrier_freq_hz = 38000;
rx_config.rx_config.carrier_duty_percent = 33;
rx_config.rx_config.carrier_level = RMT_CARRIER_LEVEL_HIGH;
}
#endif
TEST_ESP_OK(rmt_config(&rx_config));
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}
// Routing internal signals by IO Matrix (bind rmt tx and rx signal on the same GPIO)
PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[RMT_DATA_IO], PIN_FUNC_GPIO);
TEST_ESP_OK(gpio_set_direction(RMT_DATA_IO, GPIO_MODE_INPUT_OUTPUT));
gpio_matrix_out(RMT_DATA_IO, RMT_SIG_OUT0_IDX + tx_channel, 0, 0);
gpio_matrix_in(RMT_DATA_IO, RMT_SIG_IN0_IDX + rx_channel, 0);
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// install driver
if (tx_channel >= 0) {
TEST_ESP_OK(rmt_driver_install(tx_channel, 0, 0));
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ir_builder_config_t ir_builder_config = IR_BUILDER_DEFAULT_CONFIG((ir_dev_t)tx_channel);
ir_builder_config.flags = IR_TOOLS_FLAGS_PROTO_EXT;
s_ir_builder = ir_builder_rmt_new_nec(&ir_builder_config);
TEST_ASSERT_NOT_NULL(s_ir_builder);
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}
if (rx_channel >= 0) {
TEST_ESP_OK(rmt_driver_install(rx_channel, 3000, 0));
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ir_parser_config_t ir_parser_config = IR_PARSER_DEFAULT_CONFIG((ir_dev_t)rx_channel);
ir_parser_config.flags = IR_TOOLS_FLAGS_PROTO_EXT | IR_TOOLS_FLAGS_INVERSE;
s_ir_parser = ir_parser_rmt_new_nec(&ir_parser_config);
TEST_ASSERT_NOT_NULL(s_ir_parser);
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}
}
static void rmt_clean_testbench(int tx_channel, int rx_channel)
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{
if (tx_channel >= 0) {
TEST_ESP_OK(rmt_driver_uninstall(tx_channel));
TEST_ESP_OK(s_ir_builder->del(s_ir_builder));
s_ir_builder = NULL;
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}
if (rx_channel >= 0) {
TEST_ESP_OK(rmt_driver_uninstall(rx_channel));
TEST_ESP_OK(s_ir_parser->del(s_ir_parser));
s_ir_parser = NULL;
}
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}
TEST_CASE("RMT wrong configuration", "[rmt][error]")
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{
rmt_config_t correct_config = RMT_DEFAULT_CONFIG_TX(RMT_DATA_IO, 0);
rmt_config_t wrong_config = correct_config;
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wrong_config.clk_div = 0;
TEST_ASSERT(rmt_config(&wrong_config) == ESP_ERR_INVALID_ARG);
wrong_config = correct_config;
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wrong_config.channel = SOC_RMT_CHANNELS_NUM;
TEST_ASSERT(rmt_config(&wrong_config) == ESP_ERR_INVALID_ARG);
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wrong_config = correct_config;
wrong_config.channel = 2;
wrong_config.mem_block_num = 8;
TEST_ASSERT(rmt_config(&wrong_config) == ESP_ERR_INVALID_ARG);
TEST_ASSERT(rmt_set_mem_block_num(wrong_config.channel, -1) == ESP_ERR_INVALID_ARG);
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}
TEST_CASE("RMT miscellaneous functions", "[rmt]")
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{
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rmt_channel_t channel = SOC_RMT_CHANNELS_NUM - 2;
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uint8_t div_cnt;
rmt_source_clk_t src_clk;
uint8_t memNum;
uint16_t idle_thres;
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rmt_mem_owner_t owner;
// TX related functions
rmt_setup_testbench(channel, -1, 0);
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TEST_ESP_OK(rmt_set_mem_block_num(channel, 2));
TEST_ESP_OK(rmt_get_mem_block_num(channel, &memNum));
TEST_ASSERT_EQUAL_UINT8(2, memNum);
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TEST_ESP_OK(rmt_set_clk_div(channel, 160));
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TEST_ESP_OK(rmt_get_clk_div(channel, &div_cnt));
TEST_ASSERT_EQUAL_UINT8(160, div_cnt);
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TEST_ESP_OK(rmt_set_source_clk(channel, RMT_BASECLK_REF));
TEST_ESP_OK(rmt_get_source_clk(channel, &src_clk));
TEST_ASSERT_EQUAL_INT(RMT_BASECLK_REF, src_clk);
TEST_ESP_OK(rmt_set_memory_owner(channel, RMT_MEM_OWNER_RX));
TEST_ESP_OK(rmt_get_memory_owner(channel, &owner));
TEST_ASSERT_EQUAL_INT(RMT_MEM_OWNER_RX, owner);
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TEST_ESP_OK(rmt_set_tx_carrier(channel, 0, 1, 0, 1));
TEST_ESP_OK(rmt_set_idle_level(channel, 1, 0));
rmt_clean_testbench(channel, -1);
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// RX related functions
rmt_setup_testbench(-1, channel, 0);
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TEST_ESP_OK(rmt_set_rx_idle_thresh(channel, 200));
TEST_ESP_OK(rmt_get_rx_idle_thresh(channel, &idle_thres));
TEST_ASSERT_EQUAL_UINT16(200, idle_thres);
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TEST_ESP_OK(rmt_set_rx_filter(channel, 1, 100));
rmt_clean_testbench(-1, channel);
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}
TEST_CASE("RMT multiple channels", "[rmt]")
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{
rmt_config_t tx_cfg1 = RMT_DEFAULT_CONFIG_TX(RMT_DATA_IO, 0);
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TEST_ESP_OK(rmt_config(&tx_cfg1));
TEST_ESP_OK(rmt_driver_install(tx_cfg1.channel, 0, 0));
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rmt_config_t tx_cfg2 = RMT_DEFAULT_CONFIG_TX(RMT_DATA_IO, 1);
TEST_ESP_OK(rmt_config(&tx_cfg2));
TEST_ESP_OK(rmt_driver_install(tx_cfg2.channel, 0, 0));
rmt_config_t tx_cfg3 = RMT_DEFAULT_CONFIG_TX(RMT_DATA_IO, 2);
TEST_ESP_OK(rmt_config(&tx_cfg3));
TEST_ESP_OK(rmt_driver_install(tx_cfg3.channel, 0, 0));
TEST_ESP_OK(rmt_driver_uninstall(2));
TEST_ESP_OK(rmt_driver_uninstall(1));
TEST_ESP_OK(rmt_driver_uninstall(0));
}
TEST_CASE("RMT install/uninstall test", "[rmt][pressure]")
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{
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rmt_config_t rx_cfg = RMT_DEFAULT_CONFIG_TX(RMT_DATA_IO, SOC_RMT_CHANNELS_NUM - 2);
TEST_ESP_OK(rmt_config(&rx_cfg));
for (int i = 0; i < 100; i++) {
TEST_ESP_OK(rmt_driver_install(rx_cfg.channel, 1000, 0));
TEST_ESP_OK(rmt_driver_uninstall(rx_cfg.channel));
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}
}
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static void do_nec_tx_rx(uint32_t flags)
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{
RingbufHandle_t rb = NULL;
rmt_item32_t *items = NULL;
uint32_t length = 0;
uint32_t addr = 0x10;
uint32_t cmd = 0x20;
bool repeat = false;
int tx_channel = 0;
int rx_channel = 1;
// test on different flags combinations
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rmt_setup_testbench(tx_channel, rx_channel, flags);
// get ready to receive
TEST_ESP_OK(rmt_get_ringbuf_handle(rx_channel, &rb));
TEST_ASSERT_NOT_NULL(rb);
TEST_ESP_OK(rmt_rx_start(rx_channel, true));
vTaskDelay(pdMS_TO_TICKS(1000));
// build NEC codes
cmd = 0x20;
while (cmd <= 0x30) {
ESP_LOGI(TAG, "Send command 0x%x to address 0x%x", cmd, addr);
// Send new key code
TEST_ESP_OK(s_ir_builder->build_frame(s_ir_builder, addr, cmd));
TEST_ESP_OK(s_ir_builder->get_result(s_ir_builder, &items, &length));
if (cmd & 0x01) {
TEST_ESP_OK(rmt_write_items(tx_channel, items, length, false)); // no wait
TEST_ESP_OK(rmt_wait_tx_done(tx_channel, portMAX_DELAY));
} else {
TEST_ESP_OK(rmt_write_items(tx_channel, items, length, true)); // wait until done
}
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cmd++;
}
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// parse NEC codes
while (rb) {
items = (rmt_item32_t *) xRingbufferReceive(rb, &length, 1000);
if (items) {
length /= 4; // one RMT = 4 Bytes
if (s_ir_parser->input(s_ir_parser, items, length) == ESP_OK) {
if (s_ir_parser->get_scan_code(s_ir_parser, &addr, &cmd, &repeat) == ESP_OK) {
ESP_LOGI(TAG, "Scan Code %s --- addr: 0x%04x cmd: 0x%04x", repeat ? "(repeat)" : "", addr, cmd);
}
}
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vRingbufferReturnItem(rb, (void *) items);
} else {
ESP_LOGI(TAG, "done");
break;
}
}
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TEST_ASSERT_EQUAL(0x30, cmd);
rmt_clean_testbench(tx_channel, rx_channel);
}
// basic nec tx and rx test, using APB source clock, no modulation
TEST_CASE("RMT NEC TX and RX (APB)", "[rmt]")
{
do_nec_tx_rx(0);
}
// test with RMT_TESTBENCH_FLAGS_ALWAYS_ON will take a long time (REF_TICK is much slower than APB CLOCK)
TEST_CASE("RMT NEC TX and RX (REF_TICK)", "[rmt][timeout=240]")
{
do_nec_tx_rx(RMT_TESTBENCH_FLAGS_ALWAYS_ON);
}
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#if SOC_RMT_SUPPORT_RX_DEMODULATION
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// basic nec tx and rx test, using APB source clock, with modulation and demodulation on
TEST_CASE("RMT NEC TX and RX (Modulation/Demodulation)", "[rmt]")
{
do_nec_tx_rx(RMT_TESTBENCH_FLAGS_CARRIER_ON);
}
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#endif
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TEST_CASE("RMT TX (SOC_RMT_CHANNEL_MEM_WORDS-1) symbols", "[rmt][boundary]")
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{
int tx_channel = 0;
rmt_setup_testbench(tx_channel, -1, 0);
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rmt_item32_t *items = malloc(sizeof(rmt_item32_t) * (SOC_RMT_CHANNEL_MEM_WORDS - 1));
for (int i = 0; i < SOC_RMT_CHANNEL_MEM_WORDS - 1; i++) {
items[i] = (rmt_item32_t) {
{{
200, 1, 200, 0
}
}
};
}
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TEST_ESP_OK(rmt_write_items(tx_channel, items, SOC_RMT_CHANNEL_MEM_WORDS - 1, 1));
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free(items);
rmt_clean_testbench(tx_channel, -1);
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}
TEST_CASE("RMT TX stop", "[rmt]")
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{
RingbufHandle_t rb = NULL;
rmt_item32_t *frames = NULL;
uint32_t length = 0;
uint32_t count = 10;
uint32_t addr = 0x10;
uint32_t cmd = 0x20;
bool repeat = false;
int tx_channel = 0;
int rx_channel = 1;
rmt_setup_testbench(tx_channel, rx_channel, 0);
// re-install ir_builder, to enlarge internal buffer size
TEST_ESP_OK(s_ir_builder->del(s_ir_builder));
ir_builder_config_t ir_builder_config = IR_BUILDER_DEFAULT_CONFIG((ir_dev_t)tx_channel);
ir_builder_config.buffer_size *= count;
ir_builder_config.flags = IR_TOOLS_FLAGS_PROTO_EXT;
s_ir_builder = ir_builder_rmt_new_nec(&ir_builder_config);
TEST_ASSERT_NOT_NULL(s_ir_builder);
// get ready to receive
TEST_ESP_OK(rmt_get_ringbuf_handle(rx_channel, &rb));
TEST_ASSERT_NOT_NULL(rb);
TEST_ESP_OK(rmt_rx_start(rx_channel, true));
vTaskDelay(pdMS_TO_TICKS(1000));
// build NEC codes
ESP_LOGI(TAG, "Plan to send command 0x%x~0x%x to address 0x%x", cmd, cmd + count, addr);
for (int i = 0; i <= count; i++) {
TEST_ESP_OK(s_ir_builder->build_frame(s_ir_builder, addr, cmd));
cmd++;
}
TEST_ESP_OK(s_ir_builder->get_result(s_ir_builder, &frames, &length));
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// send for 1 second and then stop
TEST_ESP_OK(rmt_write_items(tx_channel, frames, length, true));
vTaskDelay(pdMS_TO_TICKS(100));
TEST_ESP_OK(rmt_tx_stop(tx_channel));
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// parse NEC codes
uint32_t num = 0;
while (rb) {
frames = (rmt_item32_t *) xRingbufferReceive(rb, &length, 1000);
if (frames) {
length /= 4; // one RMT = 4 Bytes
if (s_ir_parser->input(s_ir_parser, frames, length) == ESP_OK) {
if (s_ir_parser->get_scan_code(s_ir_parser, &addr, &cmd, &repeat) == ESP_OK) {
ESP_LOGI(TAG, "Scan Code %s --- addr: 0x%04x cmd: 0x%04x", repeat ? "(repeat)" : "", addr, cmd);
num++;
}
}
vRingbufferReturnItem(rb, (void *) frames);
} else {
ESP_LOGI(TAG, "done");
break;
}
}
TEST_ASSERT(num < count);
rmt_clean_testbench(tx_channel, rx_channel);
}
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#if SOC_RMT_SUPPORT_RX_PINGPONG
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TEST_CASE("RMT Ping-Pong operation", "[rmt]")
{
int tx_channel = 0;
int rx_channel = 1;
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rmt_item32_t frames[SOC_RMT_CHANNEL_MEM_WORDS * 2]; // send two block data using ping-pong
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RingbufHandle_t rb = NULL;
uint32_t size = sizeof(frames) / sizeof(frames[0]);
// The design of the following test frame should trigger three rx threshold interrupt and one rx end interrupt
int i = 0;
for (i = 0; i < size - 1; i++) {
frames[i].level0 = 1;
frames[i].duration0 = 100;
frames[i].level1 = 0;
frames[i].duration1 = 100;
}
frames[i].level0 = 1;
frames[i].duration0 = 0;
frames[i].level1 = 0;
frames[i].duration1 = 0;
rmt_setup_testbench(tx_channel, rx_channel, 0);
// get ready to receive
TEST_ESP_OK(rmt_get_ringbuf_handle(rx_channel, &rb));
TEST_ASSERT_NOT_NULL(rb);
TEST_ESP_OK(rmt_rx_start(rx_channel, true));
vTaskDelay(pdMS_TO_TICKS(1000));
for (uint32_t test_count = 0; test_count < 5; test_count++) {
TEST_ESP_OK(rmt_write_items(tx_channel, frames, size, true));
// parse received data
uint32_t length = 0;
rmt_item32_t *items = (rmt_item32_t *) xRingbufferReceive(rb, &length, 1000);
if (items) {
vRingbufferReturnItem(rb, (void *) items);
}
TEST_ASSERT_EQUAL(4 * (size - 1), length);
}
rmt_clean_testbench(tx_channel, rx_channel);
}
#endif
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#if SOC_RMT_SUPPORT_TX_GROUP
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static uint32_t tx_end_time0, tx_end_time1;
static void rmt_tx_end_cb(rmt_channel_t channel, void *arg)
{
if (channel == 0) {
tx_end_time0 = esp_cpu_get_ccount();
} else {
tx_end_time1 = esp_cpu_get_ccount();
}
}
TEST_CASE("RMT TX simultaneously", "[rmt]")
{
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rmt_item32_t frames[SOC_RMT_CHANNEL_MEM_WORDS];
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uint32_t size = sizeof(frames) / sizeof(frames[0]);
int channel0 = 0;
int channel1 = 1;
int i = 0;
for (i = 0; i < size - 1; i++) {
frames[i].level0 = 1;
frames[i].duration0 = 1000;
frames[i].level1 = 0;
frames[i].duration1 = 1000;
}
frames[i].level0 = 0;
frames[i].duration0 = 0;
frames[i].level1 = 0;
frames[i].duration1 = 0;
rmt_config_t tx_config0 = RMT_DEFAULT_CONFIG_TX(12, channel0);
rmt_config_t tx_config1 = RMT_DEFAULT_CONFIG_TX(13, channel1);
TEST_ESP_OK(rmt_config(&tx_config0));
TEST_ESP_OK(rmt_config(&tx_config1));
TEST_ESP_OK(rmt_driver_install(channel0, 0, 0));
TEST_ESP_OK(rmt_driver_install(channel1, 0, 0));
rmt_register_tx_end_callback(rmt_tx_end_cb, NULL);
TEST_ESP_OK(rmt_add_channel_to_group(channel0));
TEST_ESP_OK(rmt_add_channel_to_group(channel1));
TEST_ESP_OK(rmt_write_items(channel0, frames, size, false));
vTaskDelay(pdMS_TO_TICKS(1000));
TEST_ESP_OK(rmt_write_items(channel1, frames, size, false));
TEST_ESP_OK(rmt_wait_tx_done(channel0, portMAX_DELAY));
TEST_ESP_OK(rmt_wait_tx_done(channel1, portMAX_DELAY));
ESP_LOGI(TAG, "tx_end_time0=%u, tx_end_time1=%u", tx_end_time0, tx_end_time1);
TEST_ASSERT_LESS_OR_EQUAL_UINT32(2000, tx_end_time1 - tx_end_time0);
TEST_ESP_OK(rmt_remove_channel_from_group(channel0));
TEST_ESP_OK(rmt_remove_channel_from_group(channel1));
TEST_ESP_OK(rmt_driver_uninstall(channel0));
TEST_ESP_OK(rmt_driver_uninstall(channel1));
}
#endif
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#if SOC_RMT_SUPPORT_TX_LOOP_COUNT
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static void rmt_tx_loop_end(rmt_channel_t channel, void *arg)
{
rmt_tx_stop(channel);
}
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TEST_CASE("RMT TX loop", "[rmt]")
{
RingbufHandle_t rb = NULL;
rmt_item32_t *items = NULL;
uint32_t length = 0;
uint32_t addr = 0x10;
uint32_t cmd = 0x20;
bool repeat = false;
int tx_channel = 0;
int rx_channel = 1;
uint32_t count = 0;
rmt_setup_testbench(tx_channel, rx_channel, RMT_TESTBENCH_FLAGS_LOOP_ON);
// get ready to receive
TEST_ESP_OK(rmt_get_ringbuf_handle(rx_channel, &rb));
TEST_ASSERT_NOT_NULL(rb);
TEST_ESP_OK(rmt_rx_start(rx_channel, true));
vTaskDelay(pdMS_TO_TICKS(1000));
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// register callback functions, invoked when tx loop count to ceiling
rmt_register_tx_end_callback(rmt_tx_loop_end, NULL);
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// build NEC codes
ESP_LOGI(TAG, "Send command 0x%x to address 0x%x", cmd, addr);
// Send new key code
TEST_ESP_OK(s_ir_builder->build_frame(s_ir_builder, addr, cmd));
TEST_ESP_OK(s_ir_builder->get_result(s_ir_builder, &items, &length));
TEST_ESP_OK(rmt_write_items(tx_channel, items, length, true)); // wait until done
// parse NEC codes
while (rb) {
items = (rmt_item32_t *) xRingbufferReceive(rb, &length, 1000);
if (items) {
length /= 4; // one RMT = 4 Bytes
if (s_ir_parser->input(s_ir_parser, items, length) == ESP_OK) {
if (s_ir_parser->get_scan_code(s_ir_parser, &addr, &cmd, &repeat) == ESP_OK) {
count++;
ESP_LOGI(TAG, "Scan Code %s --- addr: 0x%04x cmd: 0x%04x", repeat ? "(repeat)" : "", addr, cmd);
}
}
vRingbufferReturnItem(rb, (void *) items);
} else {
ESP_LOGI(TAG, "done");
break;
}
}
TEST_ASSERT_EQUAL(10, count);
rmt_clean_testbench(tx_channel, rx_channel);
}
#endif