50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/* Very basic example to test the pwm library
|
|
* Hook up an LED to pin14 and you should see the intensity change
|
|
*
|
|
* Part of esp-open-rtos
|
|
* Copyright (C) 2015 Javier Cardona (https://github.com/jcard0na)
|
|
* BSD Licensed as described in the file LICENSE
|
|
*/
|
|
#include "espressif/esp_common.h"
|
|
#include "esp/uart.h"
|
|
#include "FreeRTOS.h"
|
|
#include "task.h"
|
|
#include "pwm.h"
|
|
|
|
void task1(void *pvParameters)
|
|
{
|
|
printf("Hello from task1!\r\n");
|
|
uint32_t const init_count = 0;
|
|
uint32_t count = init_count;
|
|
while(1) {
|
|
vTaskDelay(100);
|
|
printf("duty cycle set to %d/UINT16_MAX%%\r\n", count);
|
|
pwm_set_duty(count);
|
|
count += UINT16_MAX/17;
|
|
if (count > UINT16_MAX)
|
|
count = init_count;
|
|
}
|
|
}
|
|
|
|
void user_init(void)
|
|
{
|
|
uint8_t pins[1];
|
|
uart_set_baud(0, 115200);
|
|
|
|
printf("SDK version:%s\n", sdk_system_get_sdk_version());
|
|
|
|
printf("pwm_init(1, [14])\n");
|
|
pins[0] = 14;
|
|
pwm_init(1, pins);
|
|
|
|
printf("pwm_set_freq(1000) # 1 kHz\n");
|
|
pwm_set_freq(1000);
|
|
|
|
printf("pwm_set_duty(UINT16_MAX/2) # 50%%\n");
|
|
pwm_set_duty(UINT16_MAX/2);
|
|
|
|
printf("pwm_start()\n");
|
|
pwm_start();
|
|
|
|
xTaskCreate(task1, "tsk1", 256, NULL, 2, NULL);
|
|
}
|