rt-thread/bsp/hc32/tests/test_gpio.c

/*
 * Copyright (c) 2022-2024, Xiaohua Semiconductor Co., Ltd.
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2024-12-30     CDT          first version
 */

/*
 * 程序清单：这是一个 PIN 设备使用例程
 * 例程导出了 pin_sample 命令到控制终端
 * 命令调用格式：pin_sample
 * 程序功能：通过按键控制LED引脚的电平状态
*/

#include <rtthread.h>
#include <rtdevice.h>
#include "board_config.h"

#if defined(BSP_USING_GPIO)
#include "drv_gpio.h"

/* 1）配置RTT工程
*     menuconfig:
*     Hardware Drivers Config  --->  Onboard Peripheral Drivers  ---->  Enable TCA9539
*/
#if defined(HC32F460)
    #define LED1_PIN_NUM                GET_PIN(D, 3)   /* LED0 */
    #define KEY1_PIN_NUM                GET_PIN(B, 1)   /* K10  */
#elif defined(HC32F4A0) || defined(HC32F4A8)
    #define LED1_PIN_NUM                GET_PIN(B, 11)  /* LED10 */
    #define KEY1_PIN_NUM                GET_PIN(A, 0)   /* K10  */
#elif defined(HC32F448)
    #define LED1_PIN_NUM                GET_PIN(A, 2)   /* LED3 */
    #define KEY1_PIN_NUM                GET_PIN(B, 6)   /* K5  */
#elif defined(HC32F472)
    #define LED1_PIN_NUM                GET_PIN(C, 9)   /* LED5 */
    #define KEY1_PIN_NUM                GET_PIN(B, 5)   /* K10  */
#endif

static uint8_t u8LedState = 1;

void led_control(void *args)
{
    u8LedState = !u8LedState;
    if (0 == u8LedState)
    {
        rt_pin_write(LED1_PIN_NUM, PIN_LOW);
    }
    else
    {
        rt_pin_write(LED1_PIN_NUM, PIN_HIGH);
    }
}

static void pin_sample(void)
{
    /* LED引脚为输出模式 */
    rt_pin_mode(LED1_PIN_NUM, PIN_MODE_OUTPUT);
    /* 默认高电平 */
    rt_pin_write(LED1_PIN_NUM, PIN_HIGH);

    /* 按键1引脚为输入模式 */
    rt_pin_mode(KEY1_PIN_NUM, PIN_MODE_INPUT_PULLUP);
    /* 绑定中断，下降沿模式，回调函数名为led_control */
    // rt_pin_attach_irq(KEY1_PIN_NUM, PIN_IRQ_MODE_RISING, led_control, RT_NULL);
    // rt_pin_attach_irq(KEY1_PIN_NUM, PIN_IRQ_MODE_FALLING, led_control, RT_NULL);
    rt_pin_attach_irq(KEY1_PIN_NUM, PIN_IRQ_MODE_RISING_FALLING, led_control, RT_NULL);
    /* 使能中断 */
    rt_pin_irq_enable(KEY1_PIN_NUM, PIN_IRQ_ENABLE);
}
/* 导出到 msh 命令列表中 */
MSH_CMD_EXPORT(pin_sample, pin sample);

#endif