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refactor(mcpwm): remove io_loop_back in example

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This commit is contained in:
Chen Jichang 2024-10-17 19:17:29 +08:00
parent d5ccd1dae4
commit 9e27d464eb
1 changed files with 10 additions and 4 deletions
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14
examples/peripherals/mcpwm/mcpwm_sync/main/mcpwm_sync_example_main.c
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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Unlicense OR CC0-1.0
*/
@ -28,6 +28,12 @@ static void example_setup_sync_strategy(mcpwm_timer_handle_t timers[])
// | | |
// v v v
// timer0 timer1 timer2
gpio_config_t sync_gpio_conf = {
.mode = GPIO_MODE_OUTPUT,
.pin_bit_mask = BIT(EXAMPLE_SYNC_GPIO),
};
ESP_ERROR_CHECK(gpio_config(&sync_gpio_conf));
ESP_LOGI(TAG, "Create GPIO sync source");
mcpwm_sync_handle_t gpio_sync_source = NULL;
mcpwm_gpio_sync_src_config_t gpio_sync_config = {
@ -35,7 +41,6 @@ static void example_setup_sync_strategy(mcpwm_timer_handle_t timers[])
.gpio_num = EXAMPLE_SYNC_GPIO,
.flags.pull_down = true,
.flags.active_neg = false, // by default, a posedge pulse can trigger a sync event
.flags.io_loop_back = true, // then we can trigger a sync event using `gpio_set_level` on the same GPIO
};
ESP_ERROR_CHECK(mcpwm_new_gpio_sync_src(&gpio_sync_config, &gpio_sync_source));
@ -50,8 +55,9 @@ static void example_setup_sync_strategy(mcpwm_timer_handle_t timers[])
}
ESP_LOGI(TAG, "Trigger a pulse on the GPIO as a sync event");
gpio_set_level(EXAMPLE_SYNC_GPIO, 0);
gpio_set_level(EXAMPLE_SYNC_GPIO, 1);
ESP_ERROR_CHECK(gpio_set_level(EXAMPLE_SYNC_GPIO, 0));
ESP_ERROR_CHECK(gpio_set_level(EXAMPLE_SYNC_GPIO, 1));
ESP_ERROR_CHECK(gpio_reset_pin(EXAMPLE_SYNC_GPIO));
}
#endif // CONFIG_EXAMPLE_SYNC_FROM_GPIO