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feat(mcpwm): support update timer period dynamically

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Implement the requirement asked in
https://www.esp32.com/viewtopic.php?f=13&t=35919
This commit is contained in:
morris
2023-10-11 17:50:18 +08:00
parent 91da72ef95
commit 0cbcb9f5ea
11 changed files with 88 additions and 25 deletions
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components/driver/test_apps/mcpwm/main/test_mcpwm_timer.c
+18 -1
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@@ -177,9 +177,26 @@ TEST_CASE("mcpwm_timer_event_callbacks", "[mcpwm]")
bits = xEventGroupWaitBits(event_group, TEST_MCPWM_TIMER_EVENT_BIT_STOP, pdTRUE, pdTRUE, pdMS_TO_TICKS(50));
TEST_ASSERT_EQUAL(TEST_MCPWM_TIMER_EVENT_BIT_STOP, bits);
printf("update timer period\r\n");
TEST_ESP_OK(mcpwm_timer_set_period(timer, 50 * 1000)); // period: 50ms, 20Hz
udata.accumulate_empty_counts = 0;
udata.accumulate_full_counts = 0;
printf("start timer\r\n");
TEST_ESP_OK(mcpwm_timer_start_stop(timer, MCPWM_TIMER_START_NO_STOP));
printf("wait for full and empty events\r\n");
bits = xEventGroupWaitBits(event_group, TEST_MCPWM_TIMER_EVENT_BIT_FULL | TEST_MCPWM_TIMER_EVENT_BIT_EMPTY, pdTRUE, pdTRUE, pdMS_TO_TICKS(1500));
// because the timer period changed, the previous wait time is not sufficient, so timeout
TEST_ASSERT_EQUAL(0, bits);
bits = xEventGroupWaitBits(event_group, TEST_MCPWM_TIMER_EVENT_BIT_FULL | TEST_MCPWM_TIMER_EVENT_BIT_EMPTY, pdTRUE, pdTRUE, pdMS_TO_TICKS(1500));
TEST_ASSERT_EQUAL(TEST_MCPWM_TIMER_EVENT_BIT_FULL | TEST_MCPWM_TIMER_EVENT_BIT_EMPTY, bits);
printf("stop timer\r\n");
TEST_ESP_OK(mcpwm_timer_start_stop(timer, MCPWM_TIMER_STOP_EMPTY));
printf("disable timer\r\n");
TEST_ESP_OK(mcpwm_timer_disable(timer));
printf("delete timer\r\n");
TEST_ESP_OK(mcpwm_del_timer(timer));
vEventGroupDelete(event_group);