调光LED灯STC15F104单片机源码 -

/*--------------------------------------------------------
* Name File: KEY,C
* Versions number: 1.0
* Date : 2016.01.01
* Remarks : STC15F104E MCU
- 文件名：KEY.C
- 版本：1.0
- 日期：2016.01.01
- 备注：STC15F104E MCU
--------------------------------------------------------*/
#include"config.h" //
unsigned char T1RH,T1RL; //
unsigned char code KeyCodeMap[6]={ //按键值数组0-2是S1-S3短按
0x01,0x02,0x03,0x10,0x20,0x30 //按键值数组3-5是S1-S3长按
};
unsigned char KeySta[3]={//
1,1,1
};
unsigned int idata KeyDownTime[3]={0,0,0}; //按键按下持续时间
void configtime1(unsigned int ms); //定时器1配置
bit led1flag =1; //LED1状态标志位
bit led2flag =1; //LED2状态标志位
bit led3flag =1; //LED3状态标志位
//bit led4flag =0;
bit KeyLFlag = 0; //长按标志位
void KeyScan(); //按键的扫描
void KeyDriver(); //按键驱动
void LEDOUT(); //
void KeyAction(unsigned char KeyCode); //按键执行
//--------------------------------
void KeyAction(unsigned char KeyCode)
{
if(KeyCode==0x01)led1flag = ~led1flag;
if(KeyCode==0x02)led2flag = ~led2flag;
if(KeyCode==0x03)led3flag = ~led3flag;
if(KeyCode==0x10)led1flag = ~led1flag;
if(KeyCode==0x20)led2flag = ~led2flag;
if(KeyCode==0x30)led3flag = ~led3flag;
}
void LEDOUT()
{
LED_R=led3flag; //
LED_G=led1flag; //
LED_B=led2flag; //
}
//----------------------------
void KeyDriver()
{
unsigned char i; //
static unsigned char idata backup[3]={1,1,1}; //
static unsigned int idata TimeThr[3]={600,600,600}; //
for(i=0;i<3;i++) //循环检测3个按键
{
//---------------------------------
if(KeyDownTime[i] > 0) //检测执行快速输入
{
if(KeyDownTime[i] >= TimeThr[i])
{
if(KeyLFlag != 1)
{
KeyAction(KeyCodeMap[i+3]); //
// TimeThr[i+3] += 200; //
KeyLFlag = 1;
}
}
}
if(backup[i] != KeySta[i])
{
if(backup[i] != 1)
{
if(KeyLFlag)
{
KeyLFlag = 0;
}
else
{
KeyAction(KeyCodeMap[i]); //
}
}
backup[i] = KeySta[i]; //
}
}
}
//---------定时器1的配置------------
void configtime1(unsigned int ms)
{
unsigned long tmp;
tmp = 11059200/12; //
tmp =(tmp*ms)/1000; //
tmp = 65536 - tmp; //
tmp = tmp + 18; //
T1RH = (unsigned char)(tmp>>8); //
T1RL = (unsigned char)tmp; //
TMOD &= 0x0f; //
TMOD |= 0x10; //
TH1 = T1RH; //
TL1 = T1RL; //
ET1 = 1; //
TR1 = 1; //
EA = 1; //
}
//---------按键的扫描函数----------
void KeyScan()
{
bit RLED=0; //
bit GLED=0; //
bit BLED=0; //
unsigned char i; //
static unsigned char KeyBuf[]={
0xff,0xff,0xff
};
RLED=LED_R; //
GLED=LED_G; //
BLED=LED_B; //
S1 = 1; //
S2 = 1; //
S3 = 1; //
_nop_(); //
_nop_(); //
_nop_(); //
KeyBuf[0] = (KeyBuf[0]<<1)|S1; //
KeyBuf[1] = (KeyBuf[1]<<1)|S2; //
KeyBuf[2] = (KeyBuf[2]<<1)|S3; //
for(i=0;i<3;i++)
{
if(KeyBuf[i]== 0x00)
{
KeySta[i] = 0; //按键为零
KeyDownTime[i] += 1; //按键持续按下
}
else if(KeyBuf[i]== 0xff)
{
KeySta[i] = 1; //按键弹起状态
KeyDownTime[i]=0; // 按键清零
}
}
_nop_(); //
_nop_(); //
LED_R=RLED; //
LED_G=GLED; //
LED_B=BLED; //
// _nop_(); //
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