注册网站域名的入口是,网站空间登录,住房城乡住房和城乡建设部网站首页,网站服务器时间查询工具根据按下时的时长、间隔来判断是否是连按或者长按。当连按间隔很短时#xff0c;计录连按次数超过连接间隔时#xff0c;回报按下次数根据按键次数自行判断是单击、双击、三击、四击。。。最多记录15击。
结构体版#xff1a;
#define KEY_CHANNEL_COUNT (6 8 8)
struct…根据按下时的时长、间隔来判断是否是连按或者长按。当连按间隔很短时计录连按次数超过连接间隔时回报按下次数根据按键次数自行判断是单击、双击、三击、四击。。。最多记录15击。
结构体版
#define KEY_CHANNEL_COUNT (6 8 8)
struct keyInfo
{uint8_t act : 4; // 按了多少次最多连按15次uint8_t down : 1; // 按下了uint8_t up : 1; // 松开了uint8_t longPress : 1; // 长按了uint8_t io : 1; // 按键IO状态uint8_t intervalTime; // 连按间隔时间uint8_t holdTime; // 长按时间uint8_t duration; // 按键次数保持时间超过后act清零
};
struct keyInfo keyValues[KEY_CHANNEL_COUNT] {0};void button_trace_handle(void *p)
{static uint32_t lastTime 0;const uint8_t KEYSCAN_INTERVAL_TIME 10; // 按键扫描间隔时间const uint8_t LONG_PRESS_TIME 100; // 长按多久生效, 实际时间为,下面同理 LONG_PRESS_TIME * KEYSCAN_INTERVAL_TIMEconst uint8_t INTERVAL_TIME_SET 20; // 两次按键检测超时const uint8_t ANTI_SHAKE_TIME 2; // 按键防抖检测超时/*** brief 需要实现millis()函数,系统毫秒计时器。* */if (millis() lastTime KEYSCAN_INTERVAL_TIME){lastTime millis(); }else{return;}/**给按键IO赋值, 有多个按键就传多少个, 自己实现ic_read函数 */for (uint8_t i 0; i KEY_CHANNEL_COUNT; i){keyValues[i].io io_read(i);}for (uint8_t i 0; i KEY_CHANNEL_COUNT; i){if (keyValues[i].io)//按下了{if (keyValues[i].holdTime LONG_PRESS_TIME){keyValues[i].holdTime;if (keyValues[i].holdTime ANTI_SHAKE_TIME)//防抖{keyValues[i].down 1;keyValues[i].intervalTime INTERVAL_TIME_SET;}}else //长按了会一直标记直到松开{keyValues[i].longPress 1;}}else{//松开了keyValues[i].holdTime 0;keyValues[i].longPress 0;if (keyValues[i].down)//按下过了{if (!keyValues[i].longPress)//不是长按keyValues[i].act;//按下次数1keyValues[i].down 0;}if (keyValues[i].intervalTime)//连按超时{keyValues[i].intervalTime--;if (keyValues[i].intervalTime 1){LOG_D(key[%d] act:%d, i, keyValues[i].act);//打印哪个按键按了多少次keyValues[i].duration 10;}}}if (keyValues[i].duration 1){keyValues[i].duration--;if (keyValues[i].duration 1)//按键次数保持时间到{keyValues[i].act 0;}}}
}无结构体版更方便移到51单片机上
#define KEY_DOWN_MASK 0X80/**按下标记*/
#define KEY_LONG_PRESS_MASK 0X40/**长按标记 */
#define KEY_TIMEOUT_MASK 0X10/**超时标志此时返回按键值*/
#define KEY_TIEMES_MASK 0X0F/**按了多少次 */
#define KEY_VALUE(x) (0x0001(x))#define KEY_COUNTS 5void keyScanPro()
{const uint8_t SHORT_PRESS_TIME 25;const uint16_t LONG_PRESS_TIME 150;const uint8_t IS_KEY_DOWN 0X80;/**按下了 */const uint8_t IS_LONG_PRESS 0X40;/**长按了 */const uint8_t IS_TIME_OUT 0X10;/**退好久没按 */static uint8_t keyActionHold 0;static uint8_t pressTimesRecord[KEY_COUNTS] { 0 };static uint8_t pressTime[KEY_COUNTS] { 0 };static uint16_t longPressTime[KEY_COUNTS] { 0 };const uint16_t channel_keyScan_map[KEY_COUNTS] { DEF_SET_BIT0,DEF_SET_BIT1,DEF_SET_BIT2,DEF_SET_BIT3,DEF_SET_BIT4 };/**A,B,C,D,E,F,G,H,I,J,K,L对就的键值*/uint8_t i;keyValue KP; keyValue 1;keyValue | !K1; keyValue 1;keyValue | !K2; keyValue 1;keyValue | !K3; keyValue 1;keyValue | !K4;if (keyValue ! keyValuePre){ResetSystemShutdownCountdown();keyValuePre keyValue;}// LOG(keyValue:%d\n,(int)keyValue);if (keyAction){if (keyActionHold 100){keyActionHold 0;keyAction 0;}}for (i 0; i KEY_COUNTS; i){if (keyValue channel_keyScan_map[i]){//按下了if (longPressTime[i] LONG_PRESS_TIME){longPressTime[i];pressTime[i] SHORT_PRESS_TIME;pressTimesRecord[i] | IS_KEY_DOWN;}else{pressTimesRecord[i] | IS_LONG_PRESS;pressTimesRecord[i] | IS_TIME_OUT;pressTimesRecord[i] ~IS_KEY_DOWN; //取消标记高位keyLongPress | 1 i;keyAction | ((i 1) 8);if (keyValue PWR_KEY_VALUE){LOG(System shutting down ...);SYS_PWR_SHUTDOWN();while (1);}LOG(long press:%d\n, (int)keyLongPress);// if (pwrKeyLongPressCb) pwrKeyLongPressCb();// else pwrKeyLongPressCbDefault();}}else{//松开了longPressTime[i] 0;keyLongPress ~(1 i);if (pressTimesRecord[i] IS_KEY_DOWN){//高位标记过即按下过keyActionHold 0;pressTimesRecord[i] ~IS_KEY_DOWN; //取消标记高位if ((pressTimesRecord[i] KEY_TIEMES_MASK) 15){uint8_t ptc 0;pressTimesRecord[i];ptc pressTimesRecord[i] KEY_TIEMES_MASK;ptc ptc 7 ? 7 : ptc;// speaker_out(music_note_freq[ptc], 100);}}if (pressTime[i] 0){if (pressTime[i] 1){pressTimesRecord[i] | IS_TIME_OUT;//BIT4 为检测时间到}pressTime[i]--;}if (pressTimesRecord[i] IS_TIME_OUT){if (pressTimesRecord[i] IS_LONG_PRESS){// rt_kprintf(Long press:%d \n, i);pressTimesRecord[i] ~IS_LONG_PRESS;}else if (pressTimesRecord[i] KEY_TIEMES_MASK){uint8_t ptc pressTimesRecord[i] KEY_TIEMES_MASK;keyAction | (i 1) 4 | ptc;LOG(keyAction:%x\n, (int)keyAction);// struct pwrKeyActList* p;// p pwrKeyActListHead;// do {// // LOG_D(P:0x%08X, p);// if (p-cb)// {// p-cb(ptc);// }// p p-next;// } while (p);}// LOG(Press:%d - %d\n, (int)i, (int)(pressTimesRecord[i] KEY_TIEMES_MASK));;pressTimesRecord[i] 0;}}}
}
