RT-Thread一般讨论

5 外部中断消抖处理问题

发布于 2022-03-01 15:51:41 浏览：1394 订阅该版

2 个回答

小小李sunny 2022-03-01

这家伙很懒，什么也没写！

红枫认证专家 2022-03-02

这家伙很懒，什么也没写！

### 给你展示一段使用qkey进行状态采集的代码:
```
/*
 * drv_status.c
 *
 * Change Logs:
 * Date           Author            Notes
 * 2020-10-06     qiyongzhong       first version
 */

#include <rtthread.h>
#include <rtdevice.h>
#include <drv_common.h>
#include <qkey.h>
#include <data.h>

#define STATUS_PIN_DOOR_CTRL            GET_PIN(B, 7)
#define STATUS_PIN_DOOR_METER           GET_PIN(B, 9)
#define STATUS_PIN_MAIN_POWER           GET_PIN(A, 8)

#define STATUS_PIN_LVL_OPEN_CTRL        PIN_LOW//controler door open level is low
#define STATUS_PIN_LVL_OPEN_METER       PIN_LOW//meter door open level is low
#define STATUS_PIN_LVL_MAIN_POWER       PIN_LOW//main power ok level is low

static void status_chg_evt_hook(int pin, qkey_evt_t evt)
{
    bool is_open = (evt == QKEY_EVT_PUSH);
    
    switch(pin)
    {
    case STATUS_PIN_DOOR_CTRL:
        data_set_ctrl_door_status(is_open);
        break;
    
    case STATUS_PIN_DOOR_METER:
        data_set_meter_door_status(is_open);
        break;
    
    case STATUS_PIN_MAIN_POWER:
        data_set_main_power_status(is_open);
        break;

default:
        break;
    }
}

static int status_init(void)
{
    qkey_add(STATUS_PIN_DOOR_CTRL,  STATUS_PIN_LVL_OPEN_CTRL,  (QKEY_EVT_PUSH | QKEY_EVT_POP), status_chg_evt_hook);
    qkey_add(STATUS_PIN_DOOR_METER, STATUS_PIN_LVL_OPEN_METER, (QKEY_EVT_PUSH | QKEY_EVT_POP), status_chg_evt_hook);
    qkey_add(STATUS_PIN_MAIN_POWER,  STATUS_PIN_LVL_MAIN_POWER,  (QKEY_EVT_PUSH | QKEY_EVT_POP), status_chg_evt_hook);
    return(RT_EOK);
}
INIT_DEVICE_EXPORT(status_init);

```