/* * SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #include "freertos/FreeRTOS.h" #include "freertos/task.h" #include "unity.h" #include "soc/soc_caps.h" #include "driver/mcpwm_timer.h" #include "driver/mcpwm_oper.h" #include "driver/mcpwm_cmpr.h" #include "driver/mcpwm_gen.h" #include "driver/gpio.h" TEST_CASE("mcpwm_generator_install_uninstall", "[mcpwm]") { mcpwm_operator_config_t oper_config = { .group_id = 0, }; mcpwm_oper_handle_t oper = NULL; printf("create a MCPWM operator\r\n"); TEST_ESP_OK(mcpwm_new_operator(&oper_config, &oper)); printf("create MCPWM generators from that operator\r\n"); mcpwm_gen_handle_t gens[SOC_MCPWM_GENERATORS_PER_OPERATOR]; mcpwm_generator_config_t gen_config = { .gen_gpio_num = 0, }; for (int i = 0; i < SOC_MCPWM_GENERATORS_PER_OPERATOR; i++) { TEST_ESP_OK(mcpwm_new_generator(oper, &gen_config, &gens[i])); } TEST_ESP_ERR(ESP_ERR_NOT_FOUND, mcpwm_new_generator(oper, &gen_config, &gens[0])); printf("delete generators and operator\r\n"); // can't delete operator if the generator is till in working TEST_ESP_ERR(ESP_ERR_INVALID_STATE, mcpwm_del_operator(oper)); for (int i = 0; i < SOC_MCPWM_GENERATORS_PER_OPERATOR; i++) { TEST_ESP_OK(mcpwm_del_generator(gens[i])); } TEST_ESP_OK(mcpwm_del_operator(oper)); } TEST_CASE("mcpwm_generator_force_level_hold_on", "[mcpwm]") { // The operator can even work without the timer printf("create operator and generator\r\n"); mcpwm_oper_handle_t oper = NULL; mcpwm_operator_config_t operator_config = { .group_id = 0, }; TEST_ESP_OK(mcpwm_new_operator(&operator_config, &oper)); mcpwm_gen_handle_t generator = NULL; const int gen_gpio = 0; mcpwm_generator_config_t generator_config = { .gen_gpio_num = gen_gpio, .flags.io_loop_back = true, // loop back for test }; TEST_ESP_OK(mcpwm_new_generator(oper, &generator_config, &generator)); printf("add force level to the generator, hold on"); for (int i = 0; i < 10; i++) { TEST_ESP_OK(mcpwm_generator_set_force_level(generator, 0, true)); vTaskDelay(pdMS_TO_TICKS(10)); TEST_ASSERT_EQUAL(0, gpio_get_level(gen_gpio)); TEST_ESP_OK(mcpwm_generator_set_force_level(generator, 1, true)); vTaskDelay(pdMS_TO_TICKS(10)); TEST_ASSERT_EQUAL(1, gpio_get_level(gen_gpio)); } printf("remove the force level\r\n"); TEST_ESP_OK(mcpwm_generator_set_force_level(generator, -1, true)); printf("delete generator and operator\r\n"); TEST_ESP_OK(mcpwm_del_generator(generator)); TEST_ESP_OK(mcpwm_del_operator(oper)); } TEST_CASE("mcpwm_generator_force_level_recovery", "[mcpwm]") { printf("create mcpwm timer\r\n"); mcpwm_timer_config_t timer_config = { .group_id = 0, .clk_src = MCPWM_TIMER_CLK_SRC_DEFAULT, .count_mode = MCPWM_TIMER_COUNT_MODE_UP, .resolution_hz = 1000000, .period_ticks = 50000, }; mcpwm_timer_handle_t timer = NULL; TEST_ESP_OK(mcpwm_new_timer(&timer_config, &timer)); TEST_ESP_OK(mcpwm_timer_enable(timer)); printf("create operator\r\n"); mcpwm_oper_handle_t oper = NULL; mcpwm_operator_config_t operator_config = { .group_id = 0, .flags.update_gen_action_on_tez = true, }; TEST_ESP_OK(mcpwm_new_operator(&operator_config, &oper)); TEST_ESP_OK(mcpwm_operator_connect_timer(oper, timer)); printf("create generator\r\n"); mcpwm_gen_handle_t generator = NULL; const int gen_gpio = 0; mcpwm_generator_config_t generator_config = { .gen_gpio_num = gen_gpio, .flags.io_loop_back = true, // loop back for test }; TEST_ESP_OK(mcpwm_new_generator(oper, &generator_config, &generator)); printf("add force level to the generator, and recovery by events"); TEST_ESP_OK(mcpwm_generator_set_force_level(generator, 0, false)); TEST_ASSERT_EQUAL(0, gpio_get_level(gen_gpio)); TEST_ESP_OK(mcpwm_generator_set_force_level(generator, 1, false)); TEST_ASSERT_EQUAL(1, gpio_get_level(gen_gpio)); TEST_ESP_OK(mcpwm_generator_set_force_level(generator, 0, false)); TEST_ASSERT_EQUAL(0, gpio_get_level(gen_gpio)); TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(generator, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION_END())); // generator should output high level on tez event, the previous force level should disappear TEST_ESP_OK(mcpwm_timer_start_stop(timer, MCPWM_TIMER_START_NO_STOP)); vTaskDelay(pdMS_TO_TICKS(200)); TEST_ASSERT_EQUAL(1, gpio_get_level(gen_gpio)); TEST_ESP_OK(mcpwm_timer_start_stop(timer, MCPWM_TIMER_STOP_EMPTY)); vTaskDelay(pdMS_TO_TICKS(100)); TEST_ESP_OK(mcpwm_generator_set_force_level(generator, 1, false)); TEST_ASSERT_EQUAL(1, gpio_get_level(gen_gpio)); TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(generator, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_TIMER_EVENT_ACTION_END())); // generator should output low level on tez event, the previous force level should disappear TEST_ESP_OK(mcpwm_timer_start_stop(timer, MCPWM_TIMER_START_NO_STOP)); vTaskDelay(pdMS_TO_TICKS(200)); TEST_ASSERT_EQUAL(0, gpio_get_level(gen_gpio)); TEST_ESP_OK(mcpwm_timer_start_stop(timer, MCPWM_TIMER_STOP_EMPTY)); vTaskDelay(pdMS_TO_TICKS(100)); printf("delete generator, operator and timer\r\n"); TEST_ESP_OK(mcpwm_timer_disable(timer)); TEST_ESP_OK(mcpwm_del_generator(generator)); TEST_ESP_OK(mcpwm_del_operator(oper)); TEST_ESP_OK(mcpwm_del_timer(timer)); } TEST_CASE("mcpwm_generator_action_on_timer_event", "[mcpwm]") { const int generator_gpio = 0; printf("create timer and operator\r\n"); mcpwm_timer_config_t timer_config = { .group_id = 0, .clk_src = MCPWM_TIMER_CLK_SRC_DEFAULT, .resolution_hz = 1000000, .count_mode = MCPWM_TIMER_COUNT_MODE_UP, .period_ticks = 1000, }; mcpwm_timer_handle_t timer = NULL; TEST_ESP_OK(mcpwm_new_timer(&timer_config, &timer)); TEST_ESP_OK(mcpwm_timer_enable(timer)); mcpwm_operator_config_t oper_config = { .group_id = 0, }; mcpwm_oper_handle_t oper = NULL; TEST_ESP_OK(mcpwm_new_operator(&oper_config, &oper)); printf("connect timer and operator\r\n"); TEST_ESP_OK(mcpwm_operator_connect_timer(oper, timer)); printf("create generator\r\n"); mcpwm_generator_config_t gen_config = { .gen_gpio_num = generator_gpio, .flags.io_loop_back = 1, // so that we can read the GPIO value by GPIO driver }; mcpwm_gen_handle_t gen = NULL; TEST_ESP_OK(mcpwm_new_generator(oper, &gen_config, &gen)); printf("set generator to output high on timer full\r\n"); TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(gen, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_FULL, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_KEEP), MCPWM_GEN_TIMER_EVENT_ACTION_END())); printf("start timer\r\n"); TEST_ESP_OK(mcpwm_timer_start_stop(timer, MCPWM_TIMER_START_NO_STOP)); vTaskDelay(pdMS_TO_TICKS(100)); printf("stop timer on full\r\n"); TEST_ESP_OK(mcpwm_timer_start_stop(timer, MCPWM_TIMER_STOP_FULL)); TEST_ASSERT_EQUAL(1, gpio_get_level(generator_gpio)); printf("set generator to output low on timer full\r\n"); TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(gen, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_FULL, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_KEEP), MCPWM_GEN_TIMER_EVENT_ACTION_END())); printf("start timer\r\n"); TEST_ESP_OK(mcpwm_timer_start_stop(timer, MCPWM_TIMER_START_NO_STOP)); vTaskDelay(pdMS_TO_TICKS(100)); printf("stop timer on full\r\n"); TEST_ESP_OK(mcpwm_timer_start_stop(timer, MCPWM_TIMER_STOP_FULL)); TEST_ASSERT_EQUAL(0, gpio_get_level(generator_gpio)); printf("delete timer, operator, generator\r\n"); TEST_ESP_OK(mcpwm_timer_disable(timer)); TEST_ESP_OK(mcpwm_del_generator(gen)); TEST_ESP_OK(mcpwm_del_operator(oper)); TEST_ESP_OK(mcpwm_del_timer(timer)); } typedef void (*set_gen_actions_cb_t)(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb, mcpwm_cmpr_handle_t cmpa, mcpwm_cmpr_handle_t cmpb); static void mcpwm_gen_action_test_template(uint32_t timer_resolution, uint32_t period, mcpwm_timer_count_mode_t count_mode, uint32_t cmpa, uint32_t cmpb, int gpioa, int gpiob, set_gen_actions_cb_t set_generator_actions) { mcpwm_timer_config_t timer_config = { .group_id = 0, .clk_src = MCPWM_TIMER_CLK_SRC_DEFAULT, .count_mode = count_mode, .resolution_hz = timer_resolution, .period_ticks = period, }; mcpwm_timer_handle_t timer = NULL; TEST_ESP_OK(mcpwm_new_timer(&timer_config, &timer)); mcpwm_operator_config_t operator_config = { .group_id = 0, }; mcpwm_oper_handle_t oper = NULL; TEST_ESP_OK(mcpwm_new_operator(&operator_config, &oper)); TEST_ESP_OK(mcpwm_operator_connect_timer(oper, timer)); TEST_ESP_OK(mcpwm_timer_enable(timer)); mcpwm_cmpr_handle_t comparator_a = NULL; mcpwm_cmpr_handle_t comparator_b = NULL; mcpwm_comparator_config_t comparator_config = { .flags.update_cmp_on_tez = true, }; TEST_ESP_OK(mcpwm_new_comparator(oper, &comparator_config, &comparator_a)); TEST_ESP_OK(mcpwm_new_comparator(oper, &comparator_config, &comparator_b)); TEST_ESP_OK(mcpwm_comparator_set_compare_value(comparator_a, cmpa)); TEST_ESP_OK(mcpwm_comparator_set_compare_value(comparator_b, cmpb)); mcpwm_gen_handle_t generator_a = NULL; mcpwm_gen_handle_t generator_b = NULL; mcpwm_generator_config_t generator_config = { .gen_gpio_num = gpioa, }; TEST_ESP_OK(mcpwm_new_generator(oper, &generator_config, &generator_a)); generator_config.gen_gpio_num = gpiob; TEST_ESP_OK(mcpwm_new_generator(oper, &generator_config, &generator_b)); set_generator_actions(generator_a, generator_b, comparator_a, comparator_b); TEST_ESP_OK(mcpwm_timer_start_stop(timer, MCPWM_TIMER_START_NO_STOP)); vTaskDelay(pdMS_TO_TICKS(100)); TEST_ESP_OK(mcpwm_timer_start_stop(timer, MCPWM_TIMER_STOP_EMPTY)); vTaskDelay(pdMS_TO_TICKS(10)); TEST_ESP_OK(mcpwm_timer_disable(timer)); TEST_ESP_OK(mcpwm_del_generator(generator_a)); TEST_ESP_OK(mcpwm_del_generator(generator_b)); TEST_ESP_OK(mcpwm_del_comparator(comparator_a)); TEST_ESP_OK(mcpwm_del_comparator(comparator_b)); TEST_ESP_OK(mcpwm_del_operator(oper)); TEST_ESP_OK(mcpwm_del_timer(timer)); } static void single_edge_active_high(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb, mcpwm_cmpr_handle_t cmpa, mcpwm_cmpr_handle_t cmpb) { TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(gena, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(gena, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpa, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(genb, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(genb, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpb, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); } static void single_edge_active_low(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb, mcpwm_cmpr_handle_t cmpa, mcpwm_cmpr_handle_t cmpb) { TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(gena, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_FULL, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_TIMER_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(gena, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpa, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(genb, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_FULL, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_TIMER_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(genb, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpb, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); } static void pulse_placement(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb, mcpwm_cmpr_handle_t cmpa, mcpwm_cmpr_handle_t cmpb) { TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(gena, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpa, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpb, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(genb, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_TOGGLE), MCPWM_GEN_TIMER_EVENT_ACTION_END())); } static void dual_edge_active_low_asym(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb, mcpwm_cmpr_handle_t cmpa, mcpwm_cmpr_handle_t cmpb) { TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(gena, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpa, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_DOWN, cmpb, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(genb, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_DOWN, MCPWM_TIMER_EVENT_FULL, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION_END())); } static void dual_edge_active_low_sym(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb, mcpwm_cmpr_handle_t cmpa, mcpwm_cmpr_handle_t cmpb) { TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(gena, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpa, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_DOWN, cmpa, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(genb, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpb, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_DOWN, cmpb, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); } static void dual_edge_complementary(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb, mcpwm_cmpr_handle_t cmpa, mcpwm_cmpr_handle_t cmpb) { TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(gena, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpa, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_DOWN, cmpa, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(genb, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpb, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_DOWN, cmpb, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); } TEST_CASE("mcpwm_generator_action_on_compare_event", "[mcpwm]") { printf("[Asymmetric, SingleEdge, ActiveHigh]\r\n"); // PWMA: high = [1->350], low = [351->499,0] // PWMB: high = [1->200], low = [201->499,0] mcpwm_gen_action_test_template(1000000, 500, MCPWM_TIMER_COUNT_MODE_UP, 350, 200, 0, 2, single_edge_active_high); printf("[Asymmetric, SingleEdge, ActiveLow]\r\n"); // PWMA: low = [0->300], high = [301->499] // PWMB: low = [0->150], high = [151->499] mcpwm_gen_action_test_template(1000000, 500, MCPWM_TIMER_COUNT_MODE_UP, 300, 150, 0, 2, single_edge_active_low); printf("[Asymmetric, PulsePlacement]\r\n"); // PWMA: low = [0->200], high = [201->400], low = [401->599] // PWMB: high = [0->599], low = [0->599] mcpwm_gen_action_test_template(1000000, 600, MCPWM_TIMER_COUNT_MODE_UP, 200, 400, 0, 2, pulse_placement); printf("[Asymmetric, DualEdge, ActiveLow]\r\n"); // PWMA: low = [0->250], high = [251->599, 600->450], low = [451->1] // PWMB: low = [0->599], low = [600->1] mcpwm_gen_action_test_template(1000000, 1200, MCPWM_TIMER_COUNT_MODE_UP_DOWN, 250, 450, 0, 2, dual_edge_active_low_asym); printf("[Symmetric, DualEdge, ActiveLow]\r\n"); // PWMA: low = [0->400], high = [401->599, 600->400], low = [399->1] // PWMB: low = [0->500], high = [501->599, 600->500], low = [499->1] mcpwm_gen_action_test_template(1000000, 1200, MCPWM_TIMER_COUNT_MODE_UP_DOWN, 400, 500, 0, 2, dual_edge_active_low_sym); printf("[Symmetric, DualEdge, Complementary]\r\n"); // PWMA: low = [0->350], high = [351->599, 600->350], low = [349->1] // PWMB: low = [0->400], high = [401->599, 600->400], low = [399->1] mcpwm_gen_action_test_template(1000000, 1200, MCPWM_TIMER_COUNT_MODE_UP_DOWN, 350, 400, 0, 2, dual_edge_complementary); } typedef void (*set_dead_time_cb_t)(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb); static void mcpwm_deadtime_test_template(uint32_t timer_resolution, uint32_t period, uint32_t cmpa, uint32_t cmpb, int gpioa, int gpiob, set_gen_actions_cb_t set_generator_actions, set_dead_time_cb_t set_dead_time) { mcpwm_timer_config_t timer_config = { .group_id = 0, .clk_src = MCPWM_TIMER_CLK_SRC_DEFAULT, .resolution_hz = timer_resolution, .period_ticks = period, .count_mode = MCPWM_TIMER_COUNT_MODE_UP, }; mcpwm_timer_handle_t timer = NULL; TEST_ESP_OK(mcpwm_new_timer(&timer_config, &timer)); mcpwm_operator_config_t operator_config = { .group_id = 0, }; mcpwm_oper_handle_t oper = NULL; TEST_ESP_OK(mcpwm_new_operator(&operator_config, &oper)); TEST_ESP_OK(mcpwm_operator_connect_timer(oper, timer)); TEST_ESP_OK(mcpwm_timer_enable(timer)); mcpwm_cmpr_handle_t comparator_a = NULL; mcpwm_cmpr_handle_t comparator_b = NULL; mcpwm_comparator_config_t comparator_config = { .flags.update_cmp_on_tez = true, }; TEST_ESP_OK(mcpwm_new_comparator(oper, &comparator_config, &comparator_a)); TEST_ESP_OK(mcpwm_new_comparator(oper, &comparator_config, &comparator_b)); TEST_ESP_OK(mcpwm_comparator_set_compare_value(comparator_a, cmpa)); TEST_ESP_OK(mcpwm_comparator_set_compare_value(comparator_b, cmpb)); mcpwm_gen_handle_t generator_a = NULL; mcpwm_gen_handle_t generator_b = NULL; mcpwm_generator_config_t generator_config = { .gen_gpio_num = gpioa, }; TEST_ESP_OK(mcpwm_new_generator(oper, &generator_config, &generator_a)); generator_config.gen_gpio_num = gpiob; TEST_ESP_OK(mcpwm_new_generator(oper, &generator_config, &generator_b)); set_generator_actions(generator_a, generator_b, comparator_a, comparator_b); set_dead_time(generator_a, generator_b); TEST_ESP_OK(mcpwm_timer_start_stop(timer, MCPWM_TIMER_START_NO_STOP)); vTaskDelay(pdMS_TO_TICKS(100)); TEST_ESP_OK(mcpwm_timer_start_stop(timer, MCPWM_TIMER_STOP_EMPTY)); vTaskDelay(pdMS_TO_TICKS(10)); TEST_ESP_OK(mcpwm_timer_disable(timer)); TEST_ESP_OK(mcpwm_del_generator(generator_a)); TEST_ESP_OK(mcpwm_del_generator(generator_b)); TEST_ESP_OK(mcpwm_del_comparator(comparator_a)); TEST_ESP_OK(mcpwm_del_comparator(comparator_b)); TEST_ESP_OK(mcpwm_del_operator(oper)); TEST_ESP_OK(mcpwm_del_timer(timer)); } static void ahc_set_generator_actions(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb, mcpwm_cmpr_handle_t cmpa, mcpwm_cmpr_handle_t cmpb) { TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(gena, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(gena, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpa, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); } static void ahc_set_dead_time(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb) { mcpwm_dead_time_config_t dead_time_config = { .posedge_delay_ticks = 50, .negedge_delay_ticks = 0 }; TEST_ESP_OK(mcpwm_generator_set_dead_time(gena, gena, &dead_time_config)); dead_time_config.posedge_delay_ticks = 0; dead_time_config.negedge_delay_ticks = 100; dead_time_config.flags.invert_output = true; TEST_ESP_OK(mcpwm_generator_set_dead_time(gena, genb, &dead_time_config)); } static void alc_set_generator_actions(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb, mcpwm_cmpr_handle_t cmpa, mcpwm_cmpr_handle_t cmpb) { TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(gena, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(gena, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpa, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); } static void alc_set_dead_time(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb) { mcpwm_dead_time_config_t dead_time_config = { .posedge_delay_ticks = 50, .negedge_delay_ticks = 0, .flags.invert_output = true }; TEST_ESP_OK(mcpwm_generator_set_dead_time(gena, gena, &dead_time_config)); dead_time_config.posedge_delay_ticks = 0; dead_time_config.negedge_delay_ticks = 100; dead_time_config.flags.invert_output = false; TEST_ESP_OK(mcpwm_generator_set_dead_time(gena, genb, &dead_time_config)); } static void ah_set_generator_actions(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb, mcpwm_cmpr_handle_t cmpa, mcpwm_cmpr_handle_t cmpb) { TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(gena, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(gena, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpa, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); } static void ah_set_dead_time(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb) { mcpwm_dead_time_config_t dead_time_config = { .posedge_delay_ticks = 50, .negedge_delay_ticks = 0, }; TEST_ESP_OK(mcpwm_generator_set_dead_time(gena, gena, &dead_time_config)); dead_time_config.posedge_delay_ticks = 0; dead_time_config.negedge_delay_ticks = 100; TEST_ESP_OK(mcpwm_generator_set_dead_time(gena, genb, &dead_time_config)); } static void al_set_generator_actions(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb, mcpwm_cmpr_handle_t cmpa, mcpwm_cmpr_handle_t cmpb) { TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(gena, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(gena, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpa, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); } static void al_set_dead_time(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb) { mcpwm_dead_time_config_t dead_time_config = { .posedge_delay_ticks = 50, .negedge_delay_ticks = 0, .flags.invert_output = true }; TEST_ESP_OK(mcpwm_generator_set_dead_time(gena, gena, &dead_time_config)); dead_time_config.posedge_delay_ticks = 0; dead_time_config.negedge_delay_ticks = 100; TEST_ESP_OK(mcpwm_generator_set_dead_time(gena, genb, &dead_time_config)); } static void reda_only_set_generator_actions(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb, mcpwm_cmpr_handle_t cmpa, mcpwm_cmpr_handle_t cmpb) { TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(gena, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(gena, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpa, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(genb, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(genb, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpb, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); } static void reda_only_set_dead_time(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb) { mcpwm_dead_time_config_t dead_time_config = { .posedge_delay_ticks = 50, .negedge_delay_ticks = 0, }; // apply deadtime to generator_a TEST_ESP_OK(mcpwm_generator_set_dead_time(gena, gena, &dead_time_config)); // bypass deadtime module for generator_b dead_time_config.posedge_delay_ticks = 0; TEST_ESP_OK(mcpwm_generator_set_dead_time(genb, genb, &dead_time_config)); } static void fedb_only_set_generator_actions(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb, mcpwm_cmpr_handle_t cmpa, mcpwm_cmpr_handle_t cmpb) { TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(gena, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(gena, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpa, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(genb, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(genb, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpb, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); } static void fedb_only_set_dead_time(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb) { mcpwm_dead_time_config_t dead_time_config = { .posedge_delay_ticks = 0, .negedge_delay_ticks = 0, }; // generator_a bypass the deadtime module (no delay) TEST_ESP_OK(mcpwm_generator_set_dead_time(gena, gena, &dead_time_config)); // apply dead time to generator_b dead_time_config.negedge_delay_ticks = 50; TEST_ESP_OK(mcpwm_generator_set_dead_time(genb, genb, &dead_time_config)); } static void redfedb_only_set_generator_actions(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb, mcpwm_cmpr_handle_t cmpa, mcpwm_cmpr_handle_t cmpb) { TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(gena, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(gena, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpa, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_timer_event(genb, MCPWM_GEN_TIMER_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, MCPWM_TIMER_EVENT_EMPTY, MCPWM_GEN_ACTION_HIGH), MCPWM_GEN_TIMER_EVENT_ACTION_END())); TEST_ESP_OK(mcpwm_generator_set_actions_on_compare_event(genb, MCPWM_GEN_COMPARE_EVENT_ACTION(MCPWM_TIMER_DIRECTION_UP, cmpb, MCPWM_GEN_ACTION_LOW), MCPWM_GEN_COMPARE_EVENT_ACTION_END())); } static void redfedb_only_set_dead_time(mcpwm_gen_handle_t gena, mcpwm_gen_handle_t genb) { mcpwm_dead_time_config_t dead_time_config = { .posedge_delay_ticks = 0, .negedge_delay_ticks = 0, }; // generator_a bypass the deadtime module (no delay) TEST_ESP_OK(mcpwm_generator_set_dead_time(gena, gena, &dead_time_config)); // apply dead time on both edge for generator_b dead_time_config.negedge_delay_ticks = 50; dead_time_config.posedge_delay_ticks = 50; TEST_ESP_OK(mcpwm_generator_set_dead_time(genb, genb, &dead_time_config)); } TEST_CASE("mcpwm_generator_deadtime_classical_configuration", "[mcpwm]") { printf("Active High Complementary\r\n"); mcpwm_deadtime_test_template(1000000, 600, 200, 400, 0, 2, ahc_set_generator_actions, ahc_set_dead_time); printf("Active Low Complementary\r\n"); mcpwm_deadtime_test_template(1000000, 600, 200, 400, 0, 2, alc_set_generator_actions, alc_set_dead_time); printf("Active High\r\n"); mcpwm_deadtime_test_template(1000000, 600, 200, 400, 0, 2, ah_set_generator_actions, ah_set_dead_time); printf("Active Low\r\n"); mcpwm_deadtime_test_template(1000000, 600, 200, 400, 0, 2, al_set_generator_actions, al_set_dead_time); printf("RED on A, Bypass B\r\n"); mcpwm_deadtime_test_template(1000000, 500, 350, 350, 0, 2, reda_only_set_generator_actions, reda_only_set_dead_time); printf("Bypass A, FED on B\r\n"); mcpwm_deadtime_test_template(1000000, 500, 350, 350, 0, 2, fedb_only_set_generator_actions, fedb_only_set_dead_time); printf("Bypass A, RED + FED on B\r\n"); mcpwm_deadtime_test_template(1000000, 500, 350, 350, 0, 2, redfedb_only_set_generator_actions, redfedb_only_set_dead_time); }