tBoolean WiFly_Send(const char * send, const char * resp) {
tBoolean status = true;
unsigned char attempts = 0;
while(attempts < MAX_ATTEMPTS) {
delay250ms();
UART_Send((unsigned char*)send, strlen(send));
delay250ms();
if(!resp) break; // Case where no response is required
if(WiFly_Match(resp)) break;
attempts++;
}
// return failure
if(attempts >= (MAX_ATTEMPTS - 1)) status = false;
return status;
}
int main(void)
{
int i = 0; // Counter to be displayed on LEDs
int c = 0; // Counter to determine the 5th and 10th rising pulse
DDRC = 0x30; // Set PortC.4 and PortC.5 as an output
DDRB = 0xFF; // Set all of PortB as an output
PORTB = 0; // Initialize PortB to output 0
PORTC = 0; // Initialize PortC to output 0
while (1)
{
delay250ms(); // Call the Delay Function
i++; // Increment the 8 bit-counter
PORTB = i; // Output the 8-bit counter to port B
c++; // Increment the toggle counter
switch(c) { // Switch Statement to determine which bits to toggle
case 5 : PORTC = 0x20; break;
case 10 : PORTC = 0x10; break;
case 15 : PORTC = 0x30; break;
case 20 : PORTC = 0x00; c = 0; break;
}
delay250ms();
}
}
//播放指定的电台
void playStation()
{
if(! powerUp) //如果模块没有上电，则上电并初始化音量
{
//开继电器
RELAY_POWER=0;
delay250ms(); //延时给模块上电，避免继电器的干扰造成模块工作异常
//Power Up
RDA5802PowerUp(1);
powerUp=1;
delay250ms();
//开喇叭
RELAY_SPEAKER=0; //延时开喇叭，避免爆炸声
//Init volume
RDA5802SetVolume(currentVol);
}
//调谐到指定的电台
RDA5802Tune( presetStations[currentStationIndex] );
}
// Initializes the WiFly module
void WiFly_Init(void) {
UART_Init();
WiFly_Send(EXIT_CMD, NO_RSP);
delay250ms();
}
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;
}
}
}
}
