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桌面小屏幕实战课程：DesktopScreen 9 GPIO

news 2025/6/26 6:41:02

飞书文档https://x509p6c8to.feishu.cn/docx/doxcnNDtfnJnoQ6Wd17bq19aEZJ

/home/kemp/work/esp/esp-idf/examples/peripherals/gpio

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源码下载方式

GPIO & RTC GPIO - - ‒ ESP-IDF 编程指南 release-v4.1 文档


#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/queue.h"
#include "driver/gpio.h"#include "ds_gpio.h"
#include "ds_system_data.h"/*** GPIO status:* GPIO5: output* GPIO4:  input, pulled up, interrupt from rising edge*/#define GPIO_OUTPUT_IO_0    5
#define GPIO_OUTPUT_PIN_SEL  ((1ULL<<GPIO_OUTPUT_IO_0))
#define GPIO_INPUT_IO_0     34
#define GPIO_INPUT_PIN_SEL  ((1ULL<<GPIO_INPUT_IO_0))
#define ESP_INTR_FLAG_DEFAULT 0//屏幕片选 0-有效
#define SCREEN_GPIO_OUTPUT_CS 27
#define SCREEN_GPIO_OUTPUT_CS_SEL ((1ULL<<SCREEN_GPIO_OUTPUT_CS))
//屏幕数据/指令选择 1-data 0-cmd
#define SCREEN_GPIO_OUTPUT_DC 14
#define SCREEN_GPIO_OUTPUT_DC_SEL ((1ULL<<SCREEN_GPIO_OUTPUT_DC))
//屏幕复位 0-reset
#define SCREEN_GPIO_OUTPUT_RES 12
#define SCREEN_GPIO_OUTPUT_RES_SEL ((1ULL<<SCREEN_GPIO_OUTPUT_RES))
//屏幕状态 1-busy
#define SCREEN_GPIO_INTPUT_BUSY 13
#define SCREEN_GPIO_INTPUT_BUSY_SEL ((1ULL<<SCREEN_GPIO_INTPUT_BUSY))static xQueueHandle gpio_evt_queue = NULL;static void IRAM_ATTR gpio_isr_handler(void* arg)
{uint32_t gpio_num = (uint32_t) arg;xQueueSendFromISR(gpio_evt_queue, &gpio_num, NULL);
}static void gpio_task_example(void* arg)
{uint32_t io_num;for(;;) {if(xQueueReceive(gpio_evt_queue, &io_num, portMAX_DELAY)) {printf("GPIO[%d] intr, val: %d\n", io_num, gpio_get_level(io_num));}}
}void ds_touch_gpio_init(){gpio_config_t io_conf;//disable interruptio_conf.intr_type = GPIO_PIN_INTR_DISABLE;//set as output modeio_conf.mode = GPIO_MODE_OUTPUT;//bit mask of the pins that you want to set,e.g.GPIO18/19io_conf.pin_bit_mask = GPIO_OUTPUT_PIN_SEL;//disable pull-down modeio_conf.pull_down_en = 0;//disable pull-up modeio_conf.pull_up_en = 0;//configure GPIO with the given settingsgpio_config(&io_conf);//GPIO interrupt type : both rising and falling edgeio_conf.intr_type = GPIO_INTR_ANYEDGE;//bit mask of the pins, use GPIO4/5 hereio_conf.pin_bit_mask = GPIO_INPUT_PIN_SEL;//set as input mode   io_conf.mode = GPIO_MODE_INPUT;//enable pull-up modeio_conf.pull_up_en = 1;gpio_config(&io_conf);//change gpio intrrupt type for one pin// gpio_set_intr_type(GPIO_INPUT_IO_0, GPIO_INTR_NEGEDGE);//create a queue to handle gpio event from isrgpio_evt_queue = xQueueCreate(10, sizeof(uint32_t));//start gpio taskxTaskCreate(gpio_task_example, "gpio_task_example", 2048, NULL, 10, NULL);//install gpio isr servicegpio_install_isr_service(ESP_INTR_FLAG_DEFAULT);//hook isr handler for specific gpio pingpio_isr_handler_add(GPIO_INPUT_IO_0, gpio_isr_handler, (void*) GPIO_INPUT_IO_0);}void ds_screen_gpio_init(){gpio_config_t io_conf;//disable interruptio_conf.intr_type = GPIO_PIN_INTR_DISABLE;//set as output modeio_conf.mode = GPIO_MODE_OUTPUT;//bit mask of the pins that you want to set,e.g.GPIO18/19io_conf.pin_bit_mask = SCREEN_GPIO_OUTPUT_CS_SEL;//disable pull-down modeio_conf.pull_down_en = 0;//disable pull-up modeio_conf.pull_up_en = 0;//configure GPIO with the given settingsgpio_config(&io_conf);//bit mask of the pins that you want to set,e.g.GPIO18/19io_conf.pin_bit_mask = SCREEN_GPIO_OUTPUT_DC_SEL;//configure GPIO with the given settingsgpio_config(&io_conf);//bit mask of the pins that you want to set,e.g.GPIO18/19io_conf.pin_bit_mask = SCREEN_GPIO_OUTPUT_RES_SEL;//configure GPIO with the given settingsgpio_config(&io_conf);io_conf.intr_type = GPIO_INTR_NEGEDGE;//bit mask of the pins, use GPIO4/5 hereio_conf.pin_bit_mask = SCREEN_GPIO_INTPUT_BUSY_SEL;//set as input mode   io_conf.mode = GPIO_MODE_INPUT;//enable pull-up modeio_conf.pull_up_en = 0;gpio_config(&io_conf);//change gpio intrrupt type for one pin// gpio_set_intr_type(SCREEN_GPIO_INTPUT_BUSY, GPIO_INTR_NEGEDGE);//install gpio isr servicegpio_install_isr_service(ESP_INTR_FLAG_DEFAULT);//hook isr handler for specific gpio pingpio_isr_handler_add(SCREEN_GPIO_INTPUT_BUSY, gpio_isr_handler, (void*) SCREEN_GPIO_INTPUT_BUSY);
}void ds_gpio_init(){ds_touch_gpio_init();
}void ds_gpio_set_screen_cs(uint32_t level){gpio_set_level(SCREEN_GPIO_OUTPUT_CS, level);
}void ds_gpio_set_screen_dc(uint32_t level){gpio_set_level(SCREEN_GPIO_OUTPUT_DC, level);
}void ds_gpio_set_screen_rst(uint32_t level){gpio_set_level(SCREEN_GPIO_OUTPUT_RES, level);
}int ds_gpio_get_screen_busy(){return gpio_get_level(SCREEN_GPIO_INTPUT_BUSY);
}void ds_gpio_set_touch_rst(uint32_t level){gpio_set_level(GPIO_OUTPUT_IO_0, level);
}

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