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mcpwm: fix bldc example force output level inverted

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set_force_level can only set the generator level before the deadtime module.
if the deadtime module enables the inverter, then the real output level is inverted accordingly
This commit is contained in:
morris
2023-05-09 17:18:36 +08:00
parent 190e9e7212
commit a7021c3e44
3 changed files with 102 additions and 38 deletions
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components/driver/test_apps/mcpwm/main/test_mcpwm_gen.c
+50
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@@ -77,6 +77,56 @@ TEST_CASE("mcpwm_generator_force_level_hold_on", "[mcpwm]")
TEST_ESP_OK(mcpwm_del_operator(oper));
}
// mcpwm_generator_set_force_level acts before the dead time module
// so the value output on the generator is a combined result
TEST_CASE("mcpwm_force_level_and_dead_time", "[mcpwm]")
{
printf("create operator and generators\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 gen_a = NULL;
mcpwm_gen_handle_t gen_b = NULL;
const int gen_a_gpio = 0;
const int gen_b_gpio = 2;
mcpwm_generator_config_t generator_config = {
.gen_gpio_num = gen_a_gpio,
.flags.io_loop_back = true, // loop back for test
};
TEST_ESP_OK(mcpwm_new_generator(oper, &generator_config, &gen_a));
generator_config.gen_gpio_num = gen_b_gpio;
generator_config.flags.invert_pwm = true; // Inversion add to the GPIO matrix
TEST_ESP_OK(mcpwm_new_generator(oper, &generator_config, &gen_b));
mcpwm_dead_time_config_t dt_config = {
.posedge_delay_ticks = 5,
};
ESP_ERROR_CHECK(mcpwm_generator_set_dead_time(gen_a, gen_a, &dt_config));
dt_config = (mcpwm_dead_time_config_t) {
.negedge_delay_ticks = 5,
.flags.invert_output = true, // Inversion applied by the dead time module
};
ESP_ERROR_CHECK(mcpwm_generator_set_dead_time(gen_b, gen_b, &dt_config));
printf("add force level to the generator, hold on");
for (int i = 0; i < 10; i++) {
TEST_ESP_OK(mcpwm_generator_set_force_level(gen_b, 0, true));
vTaskDelay(pdMS_TO_TICKS(10));
TEST_ASSERT_EQUAL(0, gpio_get_level(gen_b_gpio));
TEST_ESP_OK(mcpwm_generator_set_force_level(gen_b, 1, true));
vTaskDelay(pdMS_TO_TICKS(10));
TEST_ASSERT_EQUAL(1, gpio_get_level(gen_b_gpio));
}
printf("delete generator and operator\r\n");
TEST_ESP_OK(mcpwm_del_generator(gen_a));
TEST_ESP_OK(mcpwm_del_generator(gen_b));
TEST_ESP_OK(mcpwm_del_operator(oper));
}
TEST_CASE("mcpwm_generator_force_level_recovery", "[mcpwm]")
{
printf("create mcpwm timer\r\n");