/** * please connect GPIO18 to GPIO19 */ #include "stdio.h" #include #include "driver/rmt.h" #include "unity.h" #include "test_utils.h" #include "freertos/FreeRTOS.h" #include "freertos/task.h" #include "freertos/queue.h" #include "freertos/semphr.h" #include "esp_err.h" #include "esp_log.h" #include "driver/periph_ctrl.h" #include "soc/rmt_reg.h" static const char* TAG = "RMT"; #define RMT_RX_ACTIVE_LEVEL 1 /*!< Data bit is active high for self test mode */ #define RMT_TX_CARRIER_EN 0 /*!< Disable carrier for self test mode */ #define RMT_TX_CHANNEL 1 /*!< RMT channel for transmitter */ #define RMT_TX_GPIO_NUM 18 /*!< GPIO number for transmitter signal */ #define RMT_RX_CHANNEL 0 /*!< RMT channel for receiver */ #define RMT_RX_GPIO_NUM 19 /*!< GPIO number for receiver */ #define RMT_CLK_DIV 100 /*!< RMT counter clock divider */ #define RMT_TICK_10_US (80000000/RMT_CLK_DIV/100000) /*!< RMT counter value for 10 us.(Source clock is APB clock) */ #define HEADER_HIGH_US 9000 /*!< NEC protocol header: positive 9ms */ #define HEADER_LOW_US 4500 /*!< NEC protocol header: negative 4.5ms*/ #define BIT_ONE_HIGH_US 560 /*!< NEC protocol data bit 1: positive 0.56ms */ #define BIT_ONE_LOW_US (2250-BIT_ONE_HIGH_US) /*!< NEC protocol data bit 1: negative 1.69ms */ #define BIT_ZERO_HIGH_US 560 /*!< NEC protocol data bit 0: positive 0.56ms */ #define BIT_ZERO_LOW_US (1120-BIT_ZERO_HIGH_US) /*!< NEC protocol data bit 0: negative 0.56ms */ #define BIT_END 560 /*!< NEC protocol end: positive 0.56ms */ #define BIT_MARGIN 20 /*!< NEC parse margin time */ #define ITEM_DURATION(d) ((d & 0x7fff)*10/RMT_TICK_10_US) /*!< Parse duration time from memory register value */ #define DATA_ITEM_NUM 34 /*!< NEC code item number: header + 32bit data + end */ #define RMT_TX_DATA_NUM 100 /*!< NEC tx test data number */ #define RMT_ITEM32_TIMEOUT_US 9500 /*!< RMT receiver timeout value(us) */ /** * @brief Build register value of waveform for NEC one data bit */ static inline void fill_item_level(rmt_item32_t* item, int high_us, int low_us) { item->level0 = 1; item->duration0 = (high_us) / 10 * RMT_TICK_10_US; item->level1 = 0; item->duration1 = (low_us) / 10 * RMT_TICK_10_US; } /** * @brief Generate NEC header value: active 9ms + negative 4.5ms */ static void fill_item_header(rmt_item32_t* item) { fill_item_level(item, HEADER_HIGH_US, HEADER_LOW_US); } /* * @brief Generate NEC data bit 1: positive 0.56ms + negative 1.69ms */ static void fill_item_bit_one(rmt_item32_t* item) { fill_item_level(item, BIT_ONE_HIGH_US, BIT_ONE_LOW_US); } /** * @brief Generate NEC data bit 0: positive 0.56ms + negative 0.56ms */ static void fill_item_bit_zero(rmt_item32_t* item) { fill_item_level(item, BIT_ZERO_HIGH_US, BIT_ZERO_LOW_US); } /** * @brief Generate NEC end signal: positive 0.56ms */ static void fill_item_end(rmt_item32_t* item) { fill_item_level(item, BIT_END, 0x7fff); } /** * @brief Check whether duration is around target_us */ inline bool check_in_range(int duration_ticks, int target_us, int margin_us) { if(( ITEM_DURATION(duration_ticks) < (target_us + margin_us)) && ( ITEM_DURATION(duration_ticks) > (target_us - margin_us))) { return true; } else { return false; } } /** * @brief Check whether this value represents an NEC header */ static bool header_if(rmt_item32_t* item) { if((item->level0 == RMT_RX_ACTIVE_LEVEL && item->level1 != RMT_RX_ACTIVE_LEVEL) && check_in_range(item->duration0, HEADER_HIGH_US, BIT_MARGIN) && check_in_range(item->duration1, HEADER_LOW_US, BIT_MARGIN)) { return true; } return false; } /** * @brief Check whether this value represents an NEC data bit 1 */ static bool bit_one_if(rmt_item32_t* item) { if((item->level0 == RMT_RX_ACTIVE_LEVEL && item->level1 != RMT_RX_ACTIVE_LEVEL) && check_in_range(item->duration0, BIT_ONE_HIGH_US, BIT_MARGIN) && check_in_range(item->duration1, BIT_ONE_LOW_US, BIT_MARGIN)) { return true; } return false; } /** * @brief Check whether this value represents an NEC data bit 0 */ static bool bit_zero_if(rmt_item32_t* item) { if((item->level0 == RMT_RX_ACTIVE_LEVEL && item->level1 != RMT_RX_ACTIVE_LEVEL) && check_in_range(item->duration0, BIT_ZERO_HIGH_US, BIT_MARGIN) && check_in_range(item->duration1, BIT_ZERO_LOW_US, BIT_MARGIN)) { return true; } return false; } /** * @brief Parse NEC 32 bit waveform to address and command. */ static int parse_items(rmt_item32_t* item, int item_num, uint16_t* addr, uint16_t* data) { int w_len = item_num; if(w_len < DATA_ITEM_NUM) { return -1; } int i = 0, j = 0; if(!header_if(item++)) { return -1; } uint16_t addr_t = 0; for(j = 0; j < 16; j++) { if(bit_one_if(item)) { addr_t |= (1 << j); } else if(bit_zero_if(item)) { addr_t |= (0 << j); } else { return -1; } item++; i++; } uint16_t data_t = 0; for(j = 0; j < 16; j++) { if(bit_one_if(item)) { data_t |= (1 << j); } else if(bit_zero_if(item)) { data_t |= (0 << j); } else { return -1; } item++; i++; } *addr = addr_t; *data = data_t; return i; } /** * @brief Build NEC 32bit waveform. */ static int build_items(int channel, rmt_item32_t* item, int item_num, uint16_t addr, uint16_t cmd_data) { int i = 0, j = 0; if(item_num < DATA_ITEM_NUM) { return -1; } fill_item_header(item++); i++; for(j = 0; j < 16; j++) { if(addr & 0x1) { fill_item_bit_one(item); } else { fill_item_bit_zero(item); } item++; i++; addr >>= 1; } for(j = 0; j < 16; j++) { if(cmd_data & 0x1) { fill_item_bit_one(item); } else { fill_item_bit_zero(item); } item++; i++; cmd_data >>= 1; } fill_item_end(item); i++; return i; } static void set_tx_data(int tx_channel, uint16_t cmd, uint16_t addr, int item_num, rmt_item32_t* item, int offset) { while(1) { int i = build_items(tx_channel, item + offset, item_num - offset, ((~addr) << 8) | addr, cmd); printf("cmd :%d\n", cmd); if(i < 0) { break; } cmd++; addr++; offset += i; } } static int get_rx_data(RingbufHandle_t rb) { uint16_t tmp = 0; while(rb) { size_t rx_size = 0; rmt_item32_t* rx_item = (rmt_item32_t*) xRingbufferReceive(rb, &rx_size, 1000); if(rx_item) { uint16_t rmt_addr; uint16_t rmt_cmd; int rx_offset = 0; while(1) { int res = parse_items(rx_item + rx_offset, rx_size / 4 - rx_offset, &rmt_addr, &rmt_cmd); if(res > 0) { rx_offset += res + 1; ESP_LOGI(TAG, "RMT RCV --- addr: 0x%04x cmd: 0x%04x", rmt_addr, rmt_cmd); TEST_ASSERT(rmt_cmd == tmp); tmp++; } else { break; } } vRingbufferReturnItem(rb, (void*) rx_item); } else { break; } } return tmp; } /** * @brief RMT transmitter initialization */ static void tx_init() { // the sender once it send something, its frq is 38kHz, and the duty cycle is 50% rmt_tx_config_t tx_cfg = { .loop_en = false, .carrier_duty_percent = 50, .carrier_freq_hz = 38000, .carrier_level = 1, .carrier_en = RMT_TX_CARRIER_EN, .idle_level = 0, .idle_output_en = true, }; rmt_config_t rmt_tx = { .channel = RMT_TX_CHANNEL, .gpio_num = RMT_TX_GPIO_NUM, .mem_block_num = 1, .clk_div = RMT_CLK_DIV, .tx_config = tx_cfg, .rmt_mode = 0, }; rmt_config(&rmt_tx); rmt_driver_install(rmt_tx.channel, 0, 0); } /** * @brief RMT receiver initialization */ static void rx_init() { rmt_rx_config_t rx_cfg = { .filter_en = true, .filter_ticks_thresh = 100, .idle_threshold = RMT_ITEM32_TIMEOUT_US / 10 * (RMT_TICK_10_US), }; rmt_config_t rmt_rx = { .channel = RMT_RX_CHANNEL, .gpio_num = RMT_RX_GPIO_NUM, .clk_div = RMT_CLK_DIV, .mem_block_num = 1, .rmt_mode = RMT_MODE_RX, .rx_config = rx_cfg, }; rmt_config(&rmt_rx); rmt_driver_install(rmt_rx.channel, (sizeof(rmt_item32_t) * DATA_ITEM_NUM * (RMT_TX_DATA_NUM+6)), 0); } TEST_CASE("RMT init config", "[rmt][test_env=UT_T1_RMT]") { // tx settings rmt_tx_config_t tx_cfg = { .loop_en = false, .carrier_duty_percent = 50, .carrier_freq_hz = 38000, .carrier_level = 1, .carrier_en = RMT_TX_CARRIER_EN, .idle_level = 0, .idle_output_en = true, }; rmt_config_t rmt_tx = { .channel = RMT_TX_CHANNEL, .gpio_num = RMT_TX_GPIO_NUM, .mem_block_num = 1, .clk_div = RMT_CLK_DIV, .tx_config = tx_cfg, }; TEST_ESP_OK(rmt_config(&rmt_tx)); TEST_ESP_OK(rmt_driver_install(rmt_tx.channel, 0, 0)); TEST_ESP_OK(rmt_driver_uninstall(rmt_tx.channel)); //rx settings rmt_rx_config_t rx_cfg = { .filter_en = true, .filter_ticks_thresh = 100, .idle_threshold = RMT_ITEM32_TIMEOUT_US / 10 * (RMT_TICK_10_US), }; rmt_config_t rmt_rx = { .channel = RMT_RX_CHANNEL, .gpio_num = RMT_RX_GPIO_NUM, .clk_div = RMT_CLK_DIV, .mem_block_num = 1, .rmt_mode = RMT_MODE_RX, .rx_config = rx_cfg, }; TEST_ESP_OK(rmt_config(&rmt_rx)); TEST_ESP_OK(rmt_driver_install(rmt_rx.channel, 1000, 0)); TEST_ESP_OK(rmt_driver_uninstall(rmt_rx.channel)); //error param setting rmt_config_t temp_rmt_rx1 = { .channel = 2, .gpio_num = 15, .clk_div = RMT_CLK_DIV, .mem_block_num = 1, .rmt_mode = RMT_MODE_RX, .rx_config = rx_cfg, }; rmt_config_t temp_rmt_rx2 = temp_rmt_rx1; temp_rmt_rx2.clk_div = 0; // only invalid parameter to test TEST_ASSERT(rmt_config(&temp_rmt_rx2) == ESP_ERR_INVALID_ARG); temp_rmt_rx2 = temp_rmt_rx1; temp_rmt_rx2.channel = RMT_CHANNEL_MAX; TEST_ASSERT(rmt_config(&temp_rmt_rx2) == ESP_ERR_INVALID_ARG); temp_rmt_rx2 = temp_rmt_rx1; temp_rmt_rx2.channel = 2; temp_rmt_rx2.mem_block_num = 8; TEST_ASSERT(rmt_config(&temp_rmt_rx2) == ESP_ERR_INVALID_ARG); } TEST_CASE("RMT init set function", "[rmt][test_env=UT_T1_RMT]") { rmt_channel_t channel = 7; TEST_ESP_OK(rmt_set_pin(channel, RMT_MODE_RX, RMT_RX_GPIO_NUM)); TEST_ESP_OK(rmt_set_clk_div(channel, RMT_CLK_DIV*2)); TEST_ESP_OK(rmt_set_mem_block_num(channel, 1)); TEST_ESP_OK(rmt_set_rx_filter(channel, 1, 100)); TEST_ESP_OK(rmt_set_rx_idle_thresh(channel, RMT_ITEM32_TIMEOUT_US / 10 * (RMT_TICK_10_US)*2)); TEST_ESP_OK(rmt_driver_install(channel, 0, 0)); TEST_ESP_OK(rmt_driver_uninstall(channel)); } // need to make sure its phenomenon by logic analyzer, can't run in CI TEST_CASE("RMT clock devider, clock source set(logic analyzer)", "[rmt][ignore]") { uint8_t div_cnt; rmt_source_clk_t src_clk; rmt_config_t rmt_tx; rmt_tx.channel = RMT_TX_CHANNEL; rmt_tx.mem_block_num = 1; rmt_tx.gpio_num = RMT_TX_GPIO_NUM; rmt_tx.clk_div = RMT_CLK_DIV; rmt_tx.tx_config.loop_en = true; rmt_tx.tx_config.carrier_duty_percent = 50; rmt_tx.tx_config.carrier_freq_hz = 38000; rmt_tx.tx_config.carrier_level = 1; rmt_tx.tx_config.carrier_en = RMT_TX_CARRIER_EN; rmt_tx.tx_config.idle_level = 0; rmt_tx.tx_config.idle_output_en = true; rmt_tx.rmt_mode = RMT_MODE_TX; TEST_ESP_OK(rmt_config(&rmt_tx)); TEST_ESP_OK(rmt_get_clk_div(RMT_TX_CHANNEL, &div_cnt)); TEST_ESP_OK(rmt_driver_install(rmt_tx.channel, 0, 0)); TEST_ASSERT_EQUAL_UINT8(div_cnt, RMT_CLK_DIV); vTaskDelay(1000 / portTICK_PERIOD_MS); // reset it and check it TEST_ESP_OK(rmt_set_clk_div(RMT_TX_CHANNEL, 160)); TEST_ESP_OK(rmt_get_clk_div(RMT_TX_CHANNEL, &div_cnt)); vTaskDelay(1000 / portTICK_PERIOD_MS); TEST_ESP_OK(rmt_set_source_clk(RMT_TX_CHANNEL, RMT_BASECLK_APB)); TEST_ESP_OK(rmt_get_source_clk(RMT_TX_CHANNEL, &src_clk)); TEST_ASSERT_EQUAL_UINT8(div_cnt, 160); TEST_ASSERT_EQUAL_INT(src_clk, RMT_BASECLK_APB); TEST_ESP_OK(rmt_driver_uninstall(rmt_tx.channel)); } TEST_CASE("RMT rx set and get properties", "[rmt][test_env=UT_T1_RMT]") { rmt_channel_t channel = RMT_RX_CHANNEL; uint8_t memNum; uint8_t div_cnt; uint16_t idleThreshold; rmt_mem_owner_t owner; rx_init(); TEST_ESP_OK(rmt_get_clk_div(channel, &div_cnt)); TEST_ESP_OK(rmt_get_mem_block_num(channel, &memNum)); TEST_ESP_OK(rmt_get_rx_idle_thresh(channel, &idleThreshold)); TEST_ESP_OK(rmt_get_memory_owner(channel, &owner)); TEST_ASSERT_EQUAL_UINT8(div_cnt, RMT_CLK_DIV); TEST_ASSERT_EQUAL_UINT8(memNum, 1); TEST_ASSERT_EQUAL_UINT16(idleThreshold, RMT_ITEM32_TIMEOUT_US / 10 * (RMT_TICK_10_US)); TEST_ASSERT_EQUAL_INT(owner, RMT_MEM_OWNER_RX); //eRR TEST_ESP_OK(rmt_set_pin(channel, RMT_MODE_RX, 22)); TEST_ESP_OK(rmt_set_clk_div(channel, RMT_CLK_DIV*2)); TEST_ESP_OK(rmt_set_mem_block_num(channel, 2)); TEST_ESP_OK(rmt_set_rx_filter(channel, 1, 100)); TEST_ESP_OK(rmt_set_rx_idle_thresh(channel, RMT_ITEM32_TIMEOUT_US / 10 * (RMT_TICK_10_US)*2)); TEST_ESP_OK(rmt_set_memory_owner(channel, RMT_MEM_OWNER_RX)); TEST_ESP_OK(rmt_get_clk_div(channel, &div_cnt)); TEST_ESP_OK(rmt_get_mem_block_num(channel, &memNum)); TEST_ESP_OK(rmt_get_rx_idle_thresh(channel, &idleThreshold)); TEST_ESP_OK(rmt_get_memory_owner(channel, &owner)); TEST_ASSERT_EQUAL_UINT8(div_cnt, RMT_CLK_DIV*2); TEST_ASSERT_EQUAL_UINT8(memNum, 2); TEST_ASSERT_EQUAL_UINT16(idleThreshold, RMT_ITEM32_TIMEOUT_US / 10 * (RMT_TICK_10_US)*2); TEST_ASSERT_EQUAL_INT(owner, RMT_MEM_OWNER_RX); TEST_ESP_OK(rmt_driver_uninstall(channel)); } TEST_CASE("RMT tx set and get properties", "[rmt][test_env=UT_T1_RMT]") { rmt_channel_t channel = RMT_TX_CHANNEL; uint8_t memNum; uint8_t div_cnt; bool loop_en; rmt_mem_owner_t owner; tx_init(); TEST_ESP_OK(rmt_get_clk_div(channel, &div_cnt)); TEST_ESP_OK(rmt_get_mem_block_num(channel, &memNum)); TEST_ESP_OK(rmt_get_tx_loop_mode(channel, &loop_en)); TEST_ESP_OK(rmt_get_memory_owner(channel, &owner)); TEST_ASSERT_EQUAL_INT8(loop_en, 0); TEST_ASSERT_EQUAL_UINT8(div_cnt, RMT_CLK_DIV); TEST_ASSERT_EQUAL_UINT8(memNum, 1); TEST_ASSERT_EQUAL_INT(owner, RMT_MEM_OWNER_TX); //reset by "set" TEST_ESP_OK(rmt_set_pin(channel, RMT_MODE_TX, RMT_TX_GPIO_NUM)); TEST_ESP_OK(rmt_set_clk_div(channel, RMT_CLK_DIV*2)); TEST_ESP_OK(rmt_set_mem_block_num(channel, 2)); TEST_ESP_OK(rmt_set_tx_loop_mode(channel, 1)); TEST_ESP_OK(rmt_set_tx_carrier(channel, 0, 1, 0, 1)); TEST_ESP_OK(rmt_set_idle_level(channel, 1, 0)); TEST_ESP_OK(rmt_set_memory_owner(channel, RMT_MEM_OWNER_TX)); TEST_ESP_OK(rmt_get_clk_div(channel, &div_cnt)); TEST_ESP_OK(rmt_get_mem_block_num(channel, &memNum)); TEST_ESP_OK(rmt_get_tx_loop_mode(channel, &loop_en)); TEST_ESP_OK(rmt_get_memory_owner(channel, &owner)); TEST_ASSERT_EQUAL_INT8(loop_en, 1); TEST_ASSERT_EQUAL_UINT8(div_cnt, RMT_CLK_DIV*2); TEST_ASSERT_EQUAL_UINT8(memNum, 2); TEST_ASSERT_EQUAL_INT(owner, RMT_MEM_OWNER_TX); rmt_item32_t items[1]; items[0].duration0 = 300 / 10 * RMT_TICK_10_US; //300us items[0].level0 = 1; items[0].duration1 = 0; items[0].level1 = 0; for(int i=0; i<100; i++) { TEST_ESP_OK(rmt_write_items(RMT_TX_CHANNEL, items, 1, /* Number of items */ 1 /* wait till done */)); vTaskDelay(10/portTICK_PERIOD_MS); //every 10ms to write the item } TEST_ESP_OK(rmt_driver_uninstall(channel)); } TEST_CASE("RMT memory test", "[rmt][test_env=UT_T1_RMT]") { rmt_config_t rmt_rx; rmt_rx.channel = RMT_RX_CHANNEL; rmt_rx.gpio_num = RMT_RX_GPIO_NUM; rmt_rx.clk_div = RMT_CLK_DIV; rmt_rx.mem_block_num = 1; rmt_rx.rmt_mode = RMT_MODE_RX; rmt_rx.rx_config.filter_en = true; rmt_rx.rx_config.filter_ticks_thresh = 100; rmt_rx.rx_config.idle_threshold = RMT_ITEM32_TIMEOUT_US / 10 * (RMT_TICK_10_US); TEST_ESP_OK(rmt_config(&rmt_rx)); for(int i = 0; i<100; i++) { TEST_ESP_OK(rmt_driver_install(rmt_rx.channel, 1000, 0)); TEST_ESP_OK(rmt_driver_uninstall(rmt_rx.channel)); } } TEST_CASE("RMT send waveform(logic analyzer)", "[rmt][test_env=UT_T1_RMT][ignore]") { tx_init(); rmt_item32_t items[1]; items[0].duration0 = 300 / 10 * RMT_TICK_10_US; //300us items[0].level0 = 1; for(int i=0; i<500; i++) { TEST_ESP_OK(rmt_write_items(RMT_TX_CHANNEL, items, 1, /* Number of items */ 1 /* wait till done */)); vTaskDelay(10/portTICK_PERIOD_MS); //every 10ms to write the item } TEST_ESP_OK(rmt_driver_uninstall(RMT_TX_CHANNEL)); } TEST_CASE("RMT basic TX and RX", "[rmt][test_env=UT_T1_RMT]") { tx_init(); int tx_channel = RMT_TX_CHANNEL; uint16_t cmd = 0x0; uint16_t addr = 0x11; int tx_num = RMT_TX_DATA_NUM; ESP_LOGI(TAG, "RMT TX DATA"); size_t size = (sizeof(rmt_item32_t) * DATA_ITEM_NUM * tx_num); rmt_item32_t* item = (rmt_item32_t*) malloc(size); int item_num = DATA_ITEM_NUM * tx_num; memset((void*) item, 0, size); int offset = 0; int rx_channel = RMT_RX_CHANNEL; rx_init(); RingbufHandle_t rb = NULL; rmt_get_ringbuf_handle(rx_channel, &rb); rmt_rx_start(rx_channel, 1); // send data set_tx_data(tx_channel, cmd, addr, item_num, item, offset); rmt_write_items(tx_channel, item, item_num, 1); free(item); // receive data uint16_t tmp = get_rx_data(rb); TEST_ASSERT(tmp == 100); TEST_ESP_OK(rmt_driver_uninstall(RMT_TX_CHANNEL)); TEST_ESP_OK(rmt_driver_uninstall(RMT_RX_CHANNEL)); } TEST_CASE("RMT TX write item not wait", "[rmt][test_env=UT_T1_RMT]") { tx_init(); int tx_channel = RMT_TX_CHANNEL; uint16_t cmd = 0x0; uint16_t addr = 0x11; int tx_num = RMT_TX_DATA_NUM; ESP_LOGI(TAG, "RMT TX DATA"); size_t size = (sizeof(rmt_item32_t) * DATA_ITEM_NUM * tx_num); rmt_item32_t* item = (rmt_item32_t*) malloc(size); int item_num = DATA_ITEM_NUM * tx_num; memset((void*) item, 0, size); int offset = 0; int rx_channel = RMT_RX_CHANNEL; rx_init(); RingbufHandle_t rb = NULL; rmt_get_ringbuf_handle(rx_channel, &rb); rmt_rx_start(rx_channel, 1); // send data set_tx_data(tx_channel, cmd, addr, item_num, item, offset); rmt_write_items(tx_channel, item, item_num, 0); free(item); // receive data uint16_t tmp = get_rx_data(rb); TEST_ASSERT(tmp < 100); TEST_ESP_OK(rmt_driver_uninstall(RMT_TX_CHANNEL)); TEST_ESP_OK(rmt_driver_uninstall(RMT_RX_CHANNEL)); } TEST_CASE("RMT TX write item wait some ticks", "[rmt][test_env=UT_T1_RMT]") { tx_init(); int tx_channel = RMT_TX_CHANNEL; uint16_t cmd = 0x0; uint16_t addr = 0x11; int tx_num = RMT_TX_DATA_NUM; ESP_LOGI(TAG, "RMT TX DATA"); size_t size = (sizeof(rmt_item32_t) * DATA_ITEM_NUM * tx_num); rmt_item32_t* item = (rmt_item32_t*) malloc(size); int item_num = DATA_ITEM_NUM * tx_num; memset((void*) item, 0, size); int offset = 0; int rx_channel = RMT_RX_CHANNEL; rx_init(); RingbufHandle_t rb = NULL; rmt_get_ringbuf_handle(rx_channel, &rb); rmt_rx_start(rx_channel, 1); // send data set_tx_data(tx_channel, cmd, addr, item_num, item, offset); rmt_write_items(tx_channel, item, item_num, 0); rmt_wait_tx_done(tx_channel, portMAX_DELAY); free(item); // receive data uint16_t tmp = get_rx_data(rb); TEST_ASSERT(tmp == 100); TEST_ESP_OK(rmt_driver_uninstall(RMT_TX_CHANNEL)); TEST_ESP_OK(rmt_driver_uninstall(RMT_RX_CHANNEL)); } TEST_CASE("RMT TX stop test", "[rmt][test_env=UT_T1_RMT]") { int rx_channel = RMT_RX_CHANNEL; rx_init(); RingbufHandle_t rb = NULL; rmt_get_ringbuf_handle(rx_channel, &rb); rmt_rx_start(rx_channel, 1); vTaskDelay(10); tx_init(); int tx_channel = RMT_TX_CHANNEL; int tx_num = RMT_TX_DATA_NUM; ESP_LOGI(TAG, "RMT TX DATA"); size_t size = (sizeof(rmt_item32_t) * DATA_ITEM_NUM * tx_num); rmt_item32_t* item = (rmt_item32_t*) malloc(size); int item_num = DATA_ITEM_NUM * tx_num; memset((void*) item, 0, size); int offset = 0; uint16_t cmd = 0x0; uint16_t addr = 0x11; // send data set_tx_data(tx_channel, cmd, addr, item_num, item, offset); rmt_write_items(tx_channel, item, item_num, 0); vTaskDelay(1000 / portTICK_PERIOD_MS); rmt_tx_stop(tx_channel); free(item); // receive data uint16_t tmp = get_rx_data(rb); TEST_ASSERT(tmp < 100); TEST_ESP_OK(rmt_driver_uninstall(RMT_TX_CHANNEL)); TEST_ESP_OK(rmt_driver_uninstall(RMT_RX_CHANNEL)); }