//-----------------------
// wr_data
//-----------------------
void
wr_data(unsigned char dat)
{
LCDE_L;
RW_L;
RS_H;
LCDE_H;
SET_LCMDATA(dat);
delay50us();
LCDE_L;
RS_L;
delay5ms();
//delay50us();
}
void senddata(uchar data1)
{
uchar tempdata,i;
tempdata=data1;
cls=0;
delay50us(1);
for(i=0;i<8;i++)
{
dat=(tempdata & 0x80)>>7;
clk=1;
tempdata=tempdata<<1;
delay(1);
clk=0;
delay(1);
}
dat=0;
}
//-----------------------
// wr_com
//-----------------------
void
wr_com(unsigned char comm)
{
// 8bit
LCDE_L;
RS_L;
RW_L;
LCDE_H;
SET_LCMDATA(comm);
delay50us();
LCDE_L;
delay5ms();
//delay50us();
}
uchar keyscan()
{
uchar i,tempdata=0;
if(key==0)
{
senddata(0x15);
dat=1;
delay50us(1);
for(i=0;i<8;i++)
{
clk=1;
delay(1);
tempdata=(tempdata<<1) | dat;
clk=0;
delay(1);
}
dat=0;
return tempdata;
}
else
return 0xFF;
}
void main(void)
{
unsigned char cnt=0, i, j;
unsigned char receivedByte;
bit validKeyPressed = 0;
union {
unsigned char byteVal[2];
unsigned int intVal;
} keyValue;
RDA5802Init();
// RDA5802ForceMono( 0 );
// RDA5802BoostBass( 1 );
RDA5802SetVolume( currentVol );
//初始化红外口
IR=1;
RELAY_SPEAKER=1;//继电器关
RELAY_POWER=1;
while(1)
{
validKeyPressed = 0; //如果检测到合法按键，则此变量将被置1
// 等待下降沿
while(IR);
//记录9ms低电平的长度
cnt=0;
while((!IR)&& cnt<IR_COUNT_TIME_OUT )
{
delay50us();
cnt++;
}
if(cnt<170||cnt>180) continue; //9ms低电平不符合，判为干扰
//记录4.5ms高电平的长度
cnt=0;
while(IR && cnt<IR_COUNT_TIME_OUT )
{
delay50us();
cnt++;
}
if(cnt<80||cnt>95) continue; //4.5ms高电平不符合，判为干扰
//收取4个字节
for( i=0; i<4; i++ )
{
receivedByte=0;
for( j=0; j<8; j++ )
{
//记录0.56ms低电平
cnt=0;
while(!IR && cnt<IR_COUNT_TIME_OUT )
{
delay50us();
cnt++;
}
if(cnt<8||cnt>15) continue; //0.56ms低电平不符合，判为干扰
//记录高电平长度，决定是0还是1
cnt=0;
while(IR && cnt<IR_COUNT_TIME_OUT )
{
delay50us();
cnt++;
}
if( cnt>7 && cnt<16 )//0.56ms高电平，判为0
{
if( j!=0 ) receivedByte <<= 1; //首位不用左移
}
else if(cnt>28 && cnt<40)//1.68ms高电平，判为0
{
//该位为1
if( j!=0 ) receivedByte <<= 1; //首位不用左移
receivedByte |= 1;
}
else break; //低电平不符合0.56ms或1.68ms，判为干扰
}
if( cnt >= IR_COUNT_TIME_OUT) break; //干扰
//第一字节为0x00，第二字节为0xff
//第三、四字节为键值
if( i==0 && receivedByte!=0 ) break;
else if( i==1 && receivedByte!=0xff ) break;
else if( i==2 )
{
keyValue.byteVal[0] = receivedByte;
}
else if( i==3 )
{
keyValue.byteVal[1] = receivedByte;
validKeyPressed = 1; //检测到了合法按键
}
}
if(validKeyPressed)
{
//检测到合法的按键了
switch( keyValue.intVal )
{
// case 0xa25d: //CH-
// case 0x629d: //CH
// case 0xe21d: //CH+
// if(powerUp)
// {
// RDA5802PowerUp(0);
// powerUp=0;
// }
// break;
// case 0x22dd: //|<<
// RDA5802PowerUp(0);
// break;
//
// case 0x02fd: //>>|
// RDA5802PowerUp(1);
// break;
case 0xe01f: //VOL-
if( powerUp && (currentVol>1) )
{
currentVol--;
RDA5802SetVolume(currentVol);
}
break;
case 0xa857: //VOL+
if( powerUp && (currentVol<15) )
{
currentVol++;
RDA5802SetVolume(currentVol);
}
break;
case 0x906f: //EQ (Power Off)
if(powerUp)
{
RELAY_SPEAKER=1;
delay250ms();
delay250ms();
RELAY_POWER=1; //延时关电源，避免爆炸声
RDA5802PowerUp(0); //关模块
powerUp=0;
}
break;
case 0x30cf: //1
currentStationIndex=0;
playStation();
break;
case 0x18e7: //2
currentStationIndex=1;
playStation();
break;
case 0x7a85: //3
currentStationIndex=2;
playStation();
break;
case 0x10ef: //4
currentStationIndex=3;
playStation();
break;
case 0x38c7: //5
currentStationIndex=4;
playStation();
break;
case 0x5aa5: //6
currentStationIndex=5;
playStation();
break;
case 0x42bd: //7
currentStationIndex=6;
playStation();
break;
default:
break;
}
}
}
}
void
interrupt_init(int int_vect,int mode)
{
switch ( int_vect )
{
case INT0:
if (mode==0) {
sbi(EICRA, ISC01);
cbi(EICRA, ISC00);
}
else {
sbi(EICRA, ISC01);
sbi(EICRA, ISC00);
}
delay50us(1);
break;
case INT1:
if (mode==0) {
sbi(EICRA, ISC11);
cbi(EICRA, ISC10);
}
else {
sbi(EICRA, ISC01);
sbi(EICRA, ISC00);
}
delay50us(1);
break;
case INT2:
if (mode==0) {
sbi(EICRA, ISC21);
cbi(EICRA, ISC20);
}
else {
sbi(EICRA, ISC21);
sbi(EICRA, ISC20);
}
delay50us(1);
break;
case INT3:
if (mode==0) {
sbi(EICRA, ISC31);
cbi(EICRA, ISC30);
}
else {
sbi(EICRA, ISC31);
sbi(EICRA, ISC30);
}
delay50us(1);
break;
case INT4:
if (mode==0) {
sbi(EICRB, ISC41);
cbi(EICRB, ISC40);
}
else {
sbi(EICRB, ISC41);
sbi(EICRB, ISC40);
}
delay50us(1);
break;
case INT5:
if (mode==0) {
sbi(EICRB, ISC51);
cbi(EICRB, ISC50);
}
else {
sbi(EICRB, ISC51);
sbi(EICRB, ISC50);
}
delay50us(1);
break;
case INT6:
if (mode==0) {
sbi(EICRB, ISC61);
cbi(EICRB, ISC60);
}
else {
sbi(EICRB, ISC61);
sbi(EICRB, ISC60);
}
delay50us(1);
break;
case INT7:
if (mode==0) {
sbi(EICRB, ISC71);
cbi(EICRB, ISC70);
}
else {
sbi(EICRB, ISC71);
sbi(EICRB, ISC70);
}
delay50us(1);
break;
}
}
