STM8 S003 按键识别长按短按处理

NE558 · 发表于 2014-8-16 17:02:11

[mw_shl_code=c,true] /**** KEY--PD5 ****************************************************************************************/ #include "key.h" extern void Delay(u32 nCount); extern void Delays(unsigned int S); u16 num=0; void KEY_Init(void) { // GPIO_Init(GPIOD,GPIO_PIN_5,GPIO_MODE_IN_PU_NO_IT); GPIO_Init(GPIOD, GPIO_PIN_5, GPIO_MODE_IN_FL_NO_IT); } u16 Key_Scan(void) { u16 key_press_num=0; if(GPIO_ReadInputPin(GPIOD,GPIO_PIN_5)) { Delay(0x3ff);/* 消抖 */ if(GPIO_ReadInputPin(GPIOD,GPIO_PIN_5)) { while(GPIO_ReadInputPin(GPIOD,GPIO_PIN_5)) { key_press_num++; Delay(0x3ff); //10x200=2000ms=2s //while(GPIO_ReadInputPin(GPIOD,GPIO_PIN_5));//这里用于识别是否按键还在按下执行相关动作，否则退出 } } } return key_press_num; //按键按下 key_press_num计数松手后返回 } void Hand_key(void) { u16 a,key_press_num=0; key_press_num=Key_Scan(); if(key_press_num>405) //大约2s { key_press_num=0; //如果达到长按键标准 //则进入长按键动作 while(GPIO_ReadInputPin(GPIOD,GPIO_PIN_5));//这里用于识别是否按键还在按下执行相关动作，否则退出 TIM2_SetCompare2(0); Delays(1); TIM2_SetCompare2(100); Delays(1); TIM2_SetCompare2(0); Delays(1); TIM2_SetCompare2(100); Delays(10); for(a=100;a>0;a--) { Delay(0xfff); TIM2_SetCompare2(a); } TIM2_SetCompare2(0); } else if(key_press_num>0&&key_press_num<400) { key_press_num=0; //如果达到短按键标准 //则进入短按键动作 while(GPIO_ReadInputPin(GPIOD,GPIO_PIN_5));//这里用于识别是否按键还在按下执行相关动作，否则退出 num++; // TIM2_SetCompare2(90); if(num==1) { Delay(0xfff); for(a=0;a<=99;a++) { Delay(0xfff); Delay(0xfff); TIM2_SetCompare2(a); } TIM2_SetCompare2(100); } if(num==2) { Delay(0xfff); for(a=100;a>70;a--) { Delay(0xfff); Delay(0xfff); TIM2_SetCompare2(a); } TIM2_SetCompare2(70); } if(num==3) { num=0; Delay(0xfff); for(a=70;a>10;a--) { Delay(0xfff); Delay(0xfff); TIM2_SetCompare2(a); } TIM2_SetCompare2(10); } } }[/mw_shl_code]

产品使用有效。。