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单片机驱动收音机模块程序

发布时间：2020-10-21 发布时间：
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radio.h文件如下：
#ifndef _RADIO_H_
#define _RADIO_H_


uint8 radio_read[5];//定义2个五字节数组保存写入控制寄存器及读取数据的内存空间
uint8 radio_write[5]={0x00,0x00,0xd0,0x17,0x00};
//uint16 pll;//14位PLL的值保存于一个字
static unsigned long frequency; //电台频率保存变量

/*-------------------------------------------------------------------------------------------------------------------
写寄存器1
msb                            lsb
MUTE   SM    PLL13   PLL12   PLL11   PLL10   PLL09   PLL08
1:静音   1:搜索模式  PLL13->PLL8
0:正常   0:非搜索  预置或搜索电台的频率值高6位
--------------------------------------------------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------------------------------------------------
写寄存器2
msb                            lsb
PLL7   PLL6   PLL5   PLL4   PLL3   PLL2   PLL1   PLL0
PLL7->PLL0
预置或搜索电台频率的低8位
--------------------------------------------------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------------------------------------------------
写寄存器3
msb                            lsb
SUD    SSL1   SSL0   HLSI   MS    ML    MR    SWP1
1:向上搜台  0    0:不搜索  1:本振高出电台 1:单声道  1:左声道静音 1:右声道静音 可编程输出口设置 
0:向下搜台  0    1:ADC为5停止  225KHz  0:立体声  0:右声道正常 0:右声道正常 1:SWPOR1高
    1    0:ADC为7停止 0:本振低于电台             0:SWPOR1低
    1    1:ADC为10停止  225KHz
--------------------------------------------------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------------------------------------------------
写寄存器4
msb                            lsb
SWP2   STBY   BL    XTAL   SMUTE   HHC    SNC    SI
可编程输出口 1:待机   1:76~91MHz  1:晶振32768Hz 1:软件静音开 1:高电平切割开 1:立体声消噪开 
1:SWPOR2高  0:正常   0:87.5~108MHz 0:13MHz   0:软件静音关 0:高电平切割关 0:立体声消噪关
0:SWPOR2低
--------------------------------------------------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------------------------------------------------
写寄存器5
msb                            lsb
PLLREF   DTC    -    -    -    -    -    -
    1:去重时间75uS
    0:去重时间50uS
--------------------------------------------------------------------------------------------------------------------*/
/*---------------------------------------------------------
函数功能：电台频率到PLL的转换
调用形式：Convert_PLL();
参数：
返回值：
修改时间：
备注：HLSI为1，采用高本振状态、XTAL=1,32.768KHz、PLLREF=0
---------------------------------------------------------*/
void Convert_PLL(void)
{
uint16 pll;
uint8 pll1,pll2;//高低位pll值暂存变量
pll=((frequency+225000)*4)/32768;// 单位均为Hz
pll1=pll/256;
pll2=pll%256;
radio_write[0]=pll1;
radio_write[1]=pll2;
}

/*---------------------------------------------------------
函数功能：初始化RADIO模块
调用形式：Radio_Init();
参数：
返回值：
修改时间：
备注：转换PLL值、写控制字
---------------------------------------------------------*/
void Radio_Init(void)
{
//frequency=93400000;//初始电台频率93.4MHz
//radio_write[0]=0x00;
//radio_write[1]=0x00;
//radio_write[2]=0xf0;
radio_write[3]=0x40;
//radio_write[4]=0x00;
//Convert_PLL();
frequency=93400000;
SendString(RADIO_ADDRESS,radio_write,5);
}

/*--------------------------------------------------------------------------------------------------------------------
读寄存器1
msb                            lsb
RF    BLF    PLL13   PLL12   PLL11   PLL10   PLL9   PLL8
1:发现电台  1:波段到头  PLL13->PLL8
  or搜索到头 0:波段未到头 搜索或预置电台频率高6位
0:未发现电台
--------------------------------------------------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------------------------------------------------
读寄存器2
msb                            lsb
PLL7   PLL6   PLL5   PLL4   PLL3   PLL2   PLL1   PLL0
PLL7->PLL0
搜索或预置电台频率低8位
--------------------------------------------------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------------------------------------------------
读寄存器3
msb                            lsb
STERE0   IF6    IF5    IF4    IF3    IF2    IF1    IF0
1:立体声  IF6->IF0
0:单声道  中频IF计数器结果
--------------------------------------------------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------------------------------------------------
读寄存器4
msb                            lsb
LEV3   LEV2   LEV1   LEV0   CI3    CI2    CI1    CI0
LEV3->LEV0              CI3->CI0
ADC输出电平              芯片识别（均为0）
--------------------------------------------------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------------------------------------------------
读寄存器5
均为保留位
--------------------------------------------------------------------------------------------------------------------*/
void Convert_Frequency()
{
frequency=radio_read[0]&0x3f;
frequency<<=8;
frequency|=radio_read[1];
frequency=frequency*8192-225000;
}

void Radio_Ing(void)
{
static bit k=0;
bit i=0;
uint8 n=0;
uint16 j;
if(!k)
{
k=1;
radio_write[3]=0x17;
}[page]

Convert_PLL();
SendString(RADIO_ADDRESS,radio_write,5);

Display_8x16(0,0,frequency%100000000/10000000);
Display_8x16(8,0,frequency%10000000/1000000);
Display_8x16(16,0,10);
Display_8x16(24,0,frequency%1000000/100000);

/*ReceiveString(RADIO_ADDRESS,radio_read,5);
Display_8x16(0,0,(radio_read[3]&0x80)>>7);
Display_8x16(8,0,(radio_read[3]&0x40)>>6);
Display_8x16(16,0,(radio_read[3]&0x20)>>5);
Display_8x16(24,0,(radio_read[3]&0x10)>>4);*/
for(j=0;j<500;j++)
Display();

while(1)
{
if(ir_value==0x16||ir_value==0x0c||ir_value==0x18||ir_value==0x5e||ir_value==0x08||ir_value==0x1c||ir_value==0x5a||ir_value==0x42||ir_value==0x52||ir_value==0x4a)
{
while(1)
{
if(!i)
{
i=1;
ClearBuf();
//Display_8x16(16,0,10);
}
 //if(n==4) frequency*=10;
 if(ir_value==0x16)
 {ir_value=0xff;Display_8x16(8*n,0,0);if(!n)frequency=0;n++;}
 else if(ir_value==0x0c)
  {ir_value=0xff;Display_8x16(8*n,0,1);if(!n)frequency=100000000;else if(n==1)frequency+=10000000;else if(n==2) frequency+=1000000;else if(n==3)frequency+=100000;n++;}
 else if(ir_value==0x18)
  {ir_value=0xff;Display_8x16(8*n,0,2);if(!n)frequency=2*100000000;else if(n==1)frequency+=2*10000000;else if(n==2) frequency+=2*1000000;else if(n==3)frequency+=2*100000;n++;}
 else if(ir_value==0x5e)
  {ir_value=0xff;Display_8x16(8*n,0,3);if(!n)frequency=3*100000000;else if(n==1)frequency+=3*10000000;else if(n==2) frequency+=3*1000000;else if(n==3)frequency+=3*100000;n++;}
 else if(ir_value==0x08)
  {ir_value=0xff;Display_8x16(8*n,0,4);if(!n)frequency=4*100000000;else if(n==1)frequency+=4*10000000;else if(n==2) frequency+=4*1000000;else if(n==3)frequency+=4*100000;n++;}
 else if(ir_value==0x1c)
  {ir_value=0xff;Display_8x16(8*n,0,5);if(!n)frequency=5*100000000;else if(n==1)frequency+=5*10000000;else if(n==2) frequency+=5*1000000;else if(n==3)frequency+=5*100000;n++;}
 else if(ir_value==0x5a)
  {ir_value=0xff;Display_8x16(8*n,0,6);if(!n)frequency=6*100000000;else if(n==1)frequency+=6*10000000;else if(n==2) frequency+=6*1000000;else if(n==3)frequency+=6*100000;n++;}
 else if(ir_value==0x42)
  {ir_value=0xff;Display_8x16(8*n,0,7);if(!n)frequency=7*100000000;else if(n==1)frequency+=7*10000000;else if(n==2) frequency+=7*1000000;else if(n==3)frequency+=7*100000;n++;}
 else if(ir_value==0x52)
  {ir_value=0xff;Display_8x16(8*n,0,8);if(!n)frequency=8*100000000;else if(n==1)frequency+=8*10000000;else if(n==2) frequency+=8*1000000;else if(n==3)frequency+=8*100000;n++;}
 else if(ir_value==0x4a)
  {ir_value=0xff;Display_8x16(8*n,0,9);if(!n)frequency=9*100000000;else if(n==1)frequency+=9*10000000;else if(n==2) frequency+=9*1000000;else if(n==3)frequency+=9*100000;n++;}
 else if(ir_value==0x43)
  {ir_value=0xff;Convert_PLL();SendString(RADIO_ADDRESS,radio_write,5);n=0;i=0;break;}
 //if(n==2)
 //n++;
for(j=0;j<100;j++)
Display();
}
}

else if(ir_value==0x15)
 {
 ir_value=0xff;//清除
 frequency=frequency+100000;
 Convert_PLL();
 SendString(RADIO_ADDRESS,radio_write,5);
 break;
 }
 
 else if(ir_value==0x07)
  {
  ir_value=0xff;
  frequency=frequency-100000;
  Convert_PLL();
  SendString(RADIO_ADDRESS,radio_write,5);
  break;
  }
 else if(ir_value==0x44||ir_value==0x40)//自动搜台
  {
   while(1)
   {
   
   if(ir_value==0x40)//向上自动搜台
   {frequency+=100000;if(frequency>108000000)frequency=78000000;}
   else {frequency-=100000;if(frequency<78000000)frequency=108000000;}
   Convert_PLL();
   SendString(RADIO_ADDRESS,radio_write,5);
   
   if(frequency>108000000||frequency<78000000)break;
   
   ReceiveString(RADIO_ADDRESS,radio_read,5);
   Convert_Frequency();
   
   if(((radio_read[2]&0x7f<0x3E)&(radio_read[2]&0x7f>0x31)|(radio_read[3]>>4)>5|(radio_read[0]&0x80)))
   break;
   else if(ir_value==0x43){break;}
   
   Display_8x16(0,0,frequency%100000000/10000000);
   Display_8x16(8,0,frequency%10000000/1000000);
   Display_8x16(16,0,10);
   Display_8x16(24,0,frequency%1000000/100000);
   Display();
   }
  ir_value=0xff;
  break;
  }
 else if(ir_value==0x46)//待机or正常
  {
  if(radio_write[3]&0x40)
  radio_write[3]&=0xbf;
  else radio_write[3]|=0x40;
  ir_value=0xff;
  //i=0;
  break;
  }
 else if(ir_value==0x43||matrix.S==FIRST)
  {
  ir_value=0xff;
 // i=0;
  k=0;
  //Radio_Init();不待机即可后台运行
  matrix.S=FIRST;
  break;
  }
}
}

void Radio_Key(void)
{
 if(!KEY_ENTER)
 {
 DelayMs(SCAN_DELAY);
  if(!KEY_ENTER)
  {
  while(!KEY_ENTER)
  ;
  matrix.S=FIRST;
  }
 }
}

/*
void Radio_Read1()
{
ReceiveString(0xc0,radio_read,5);
Convert_Frequency();

if(radio_read[0]&0x80)
temp[6]=duanma[1];
else temp[6]=duanma[0];


if(radio_read[0]&0x40)
{
temp[7]=duanma[1];
}
else temp[7]=duanma[0];


temp[0]=duanma[frequency/100];
temp[1]=duanma[frequency%100/10];
temp[2]=duanma[frequency%10];

}
*/

#endif

 

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