59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/* The classic "blink" example
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*
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* This sample code is in the public domain.
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*/
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#include <stdlib.h>
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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 "esp8266.h"
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const int gpio = 2;
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/* This task uses the high level GPIO API (esp_gpio.h) to blink an LED.
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*
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*/
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void blinkenTask(void *pvParameters)
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{
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gpio_enable(gpio, GPIO_OUTPUT);
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while(1) {
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gpio_write(gpio, 1);
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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gpio_write(gpio, 0);
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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}
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}
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/* This task demonstrates an alternative way to use raw register
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operations to blink an LED.
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The step that sets the iomux register can't be automatically
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updated from the 'gpio' constant variable, so you need to change
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the line that sets IOMUX_GPIO2 if you change 'gpio'.
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There is no significant performance benefit to this way over the
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blinkenTask version, so it's probably better to use the blinkenTask
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version.
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NOTE: This task isn't enabled by default, see the commented out line in user_init.
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*/
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void blinkenRegisterTask(void *pvParameters)
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{
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GPIO.ENABLE_OUT_SET = BIT(gpio);
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IOMUX_GPIO2 = IOMUX_GPIO2_FUNC_GPIO | IOMUX_PIN_OUTPUT_ENABLE; /* change this line if you change 'gpio' */
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while(1) {
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GPIO.OUT_SET = BIT(gpio);
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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GPIO.OUT_CLEAR = BIT(gpio);
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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}
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}
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void user_init(void)
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{
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uart_set_baud(0, 115200);
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xTaskCreate(blinkenTask, "blinkenTask", 256, NULL, 2, NULL);
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//xTaskCreate(blinkenRegisterTask, "blinkenRegisterTask", 256, NULL, 2, NULL);
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}
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