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