0103_APP/Hardware/key.c

#include "key.h"
#include "../App/ota_update.h"
#include "../App/xspDataOpt.h"
#include "../App/taskOpt.h"
KeyInfo g_keyinfo;

void key_delay(uint32_t time)
{
    volatile uint32_t idly=0;
    for(idly=20*time; idly>0; idly--);
}

/*-----------------------------------------------------------------------
 *  初始化按键
 *  key2 key3 key4
 *  *PB0, PB1, PB2
 * -----------------------------------------------------------------------*/
void key_init(void)
{
    rcu_periph_clock_enable(RCU_GPIOB);
    gpio_init(GPIOB, GPIO_MODE_IPU, GPIO_OSPEED_2MHZ,GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2); //
    timeout_setValue(&g_keyinfo.timer,5000);
    g_keyinfo.keyVal = 0;
    g_keyinfo.count = 0;
    g_keyinfo.keyPress = 0x00;
}
static void set_key_value(uint8_t keyval)
{
    if((0!=g_keyinfo.keyVal) && (keyval != g_keyinfo.keyVal) ){
        g_keyinfo.count = 0;
        g_keyinfo.keyPress = 0;
        timeout_stop(&g_keyinfo.timer);
    }
    g_keyinfo.keyVal = keyval;
    if(0==g_keyinfo.count){
        timeout_start(&g_keyinfo.timer);
    }
    if(0 == g_keyinfo.keyPress){
        g_keyinfo.count++;
        g_keyinfo.keyPress = 1;
    }
}
/*-----------------------------------------------------------------------
 *  检测按键的输入
 * ----------------------------------------------------------------------*/
uint8_t key_scan(void)
{
    if(KEY2_DOWN()){ // 按键按下
        key_delay(20); // 消抖
        if(KEY2_DOWN()) { // 确定按键按下
            set_key_value(KEY2_VAL);
        }
    }
    else if(KEY3_DOWN()){ // 按键按下
        key_delay(20); // 消抖
        if(KEY3_DOWN()) { // 确定按键按下
            set_key_value(KEY3_VAL) ;
        }
    }
    else if(KEY4_DOWN()){ // 按键按下
        key_delay(20); // 消抖
        if(KEY4_DOWN()) { // 确定按键按下
            set_key_value(KEY4_VAL);
        }
    }
    else {
        g_keyinfo.keyPress = 0x00;
        if((g_keyinfo.keyVal !=0) && (g_keyinfo.count>0) ){
            if(timeout_isOut(&g_keyinfo.timer))
                return 1;
            else return 0;
        }
    }

    return 0;
}
/*---------------------------------------------------------------------------------
 *  按键的处理
 * --------------------------------------------------------------------------------*/
void key_opteration(void)
{
    if(KEY2_VAL == g_keyinfo.keyVal ){
        switch (g_keyinfo.count){
        case 1:break; // 按键按一次
        case 2:break; // 按键按二次
        case 3: // 按键按三次
            ota_start_offline_update();
            break;
        default:
            break;
        }
    }
    else if(KEY4_VAL == g_keyinfo.keyVal) {
//        switch(g_keyinfo.count){
//        case 1:
//            save_display_data_to_flash();
//            break;
//        case 2: break;
//        case 3:
//            if(IDENTITY_MASTER == g_iDentity) {
//                g_taskRunDa.keyReadcurData = 1;
//                g_taskRunDa.keySaveMasterDa = 1;
//                printf("按键读取显示屏的值 \r\n");
//            }
//            break;
//        default: break;
//        }
    }
}