r_w.c.bak

这也是PHILIPS系列A/D解码芯片SAA7115的驱动程序源码

   I_init();
   I_start();
   if(I_send(0x87))
   {
       read_reg=I_receive();
       I_stop();
       printf("\nthe IF Part Status Byte is %x", read_reg);
   }
}  

void delay_time(unsigned int waitnop) 
{
	unsigned int i; 
	for(i=0;i<waitnop;i++)
	{
    }
}

void main()
{
  unsigned int gl_tndb1,gl_tndb2,gl_tncb,gl_tnbb,gl_tnab;
  unsigned int gl_ifb,gl_ifc,gl_ife;
  unsigned int I;
  unsigned int byte_number;

  SCON = 0x52;
  TMOD = 0x20;
  TCON = 0x69;
  TH1 = 0xfd;
  delay_time(1000);
  I_init();
  REDLED = 1;
  BLUELED = 1;
  RES_7115=0;
  RES_6752=0;
  delay_time(1000);

  //以下配置高频头寄存器
  write_tuner(0x0c,0xf2,0x86,0x42,0xa0);
  write_IF(0x16,0x70,0x4b);
  delay_time(1000);
  read_tuner();
  read_IF();
  delay_time(1000);
  read_tuner();
  read_IF();
  REDLED = 0;

  //以下为SAA7115配置
  RES_7115=1;
  delay_time(1000);
  write_7115_single_byte( 0x01, 0x08);
  write_7115_single_byte( 0x02, 0xC5);
  write_7115_single_byte( 0x03, 0x20);
  write_7115_single_byte( 0x04, 0x90);
  write_7115_single_byte( 0x05, 0x90);
  write_7115_single_byte( 0x06, 0xEB);
  write_7115_single_byte( 0x07, 0xE0);
  write_7115_single_byte( 0x08, 0xB0);
  write_7115_single_byte( 0x09, 0x40);
  write_7115_single_byte( 0x0A, 0x80);
  write_7115_single_byte( 0x0B, 0x44);
  write_7115_single_byte( 0x0C, 0x40);
  write_7115_single_byte( 0x0D, 0x00);
  write_7115_single_byte( 0x0E, 0x85);
  write_7115_single_byte( 0x0F, 0x2a);
  write_7115_single_byte( 0x10, 0x06);
  write_7115_single_byte( 0x11, 0x00);
  write_7115_single_byte( 0x12, 0x00);
  write_7115_single_byte( 0x13, 0x00);
  write_7115_single_byte( 0x14, 0x01);
  write_7115_single_byte( 0x15, 0x11);
  write_7115_single_byte( 0x16, 0xFE);
  write_7115_single_byte( 0x17, 0xd8);
  write_7115_single_byte( 0x18, 0x40);
  write_7115_single_byte( 0x19, 0x80);
  write_7115_single_byte( 0x1A, 0x77);
  write_7115_single_byte( 0x1B, 0x42);
  write_7115_single_byte( 0x1C, 0xA9);
  write_7115_single_byte( 0x1D, 0x01);

/*
  write_7115_single_byte( 0x30, 0xbc);
  write_7115_single_byte( 0x31, 0xdf);
  write_7115_single_byte( 0x32, 0x02);
  write_7115_single_byte( 0x33, 0x00);
  write_7115_single_byte( 0x34, 0xcd);
  write_7115_single_byte( 0x35, 0xcc);
  write_7115_single_byte( 0x36, 0x3a);
  write_7115_single_byte( 0x37, 0x00);
  write_7115_single_byte( 0x38, 0x03);
  write_7115_single_byte( 0x39, 0x10);
  write_7115_single_byte( 0x3a, 0x00);
*/
  write_7115_single_byte( 0x41, 0x40);
  write_7115_single_byte( 0x42, 0x00);
  write_7115_single_byte( 0x43, 0x00);
  write_7115_single_byte( 0x44, 0x00);
  write_7115_single_byte( 0x45, 0x00);
  write_7115_single_byte( 0x46, 0x00);
  write_7115_single_byte( 0x47, 0x00);
  write_7115_single_byte( 0x48, 0x00);
  write_7115_single_byte( 0x49, 0x00);
  write_7115_single_byte( 0x4a, 0x00);
  write_7115_single_byte( 0x4b, 0x00);
  write_7115_single_byte( 0x4c, 0x00);
  write_7115_single_byte( 0x4d, 0x00);
  write_7115_single_byte( 0x4e, 0x00);
  write_7115_single_byte( 0x4f, 0x00);
  write_7115_single_byte( 0x50, 0x00);
  write_7115_single_byte( 0x51, 0x00);
  write_7115_single_byte( 0x52, 0x00);
  write_7115_single_byte( 0x53, 0x00);
  write_7115_single_byte( 0x54, 0x4f);
  write_7115_single_byte( 0x55, 0x00);
  write_7115_single_byte( 0x56, 0x00);
  write_7115_single_byte( 0x57, 0x00);
  write_7115_single_byte( 0x58, 0x00);
  write_7115_single_byte( 0x59, 0x47);
  write_7115_single_byte( 0x5a, 0x03);
  write_7115_single_byte( 0x5b, 0x03);
  write_7115_single_byte( 0x5c, 0x00);
  write_7115_single_byte( 0x5d, 0x0c);
  write_7115_single_byte( 0x5e, 0x00);

//  write_7115_single_byte( 0x80, 0x90);
//  write_7115_single_byte( 0x81, 0x00);
//  write_7115_single_byte( 0x84, 0x00);
//  write_7115_single_byte( 0x85, 0x00);
//  write_7115_single_byte( 0x86, 0xc5);

  write_7115_single_byte( 0x83, 0x31);
  write_7115_single_byte( 0x87, 0x10);
  write_7115_single_byte( 0x88, 0x8a);
  //以下配置6752寄存器
  RES_6752=1; 
  delay_time(1000); 
  if(mode_transition(soft_reset))
    printf("\n reset SAA6752 success !");
  else
    printf("\n reset SAA6752 fail !");
  read_6752_single_byte(0x10);
  delay_time(1000);
  if(read_6752_single_byte(0x10))                   //get running mode
  {
    switch(read_reg)
    {
      case 1: printf("\nthe current mode is IDLE!"); 
	           break;
      case 2: printf("\nthe current mode is ENCODING!");
	           break;
	  case 4: printf("\nthe current mode is STOPPED!");
	           break;
      case 8: printf("\nthe current mode is PAUSED!");
	           break;
	  case 16: printf("\nthe current mode is RESERVED!");
               break;
	  case 32: printf("\nthe current mode is BUSY FLAG!");
	           break;
      default: printf("\nthe current mode is unkowned! x%", read_reg);
    }
  }
  else
    printf("\nread_6752_single_byte( 0x10 ) error!\n");
    
  write_6752_single_byte( 0x08, 0x00);
  reg_buffer[0]=0x00;
  reg_buffer[1]=0x00;
  write_6752_multi_byte( 0x11, 2);
  write_6752_single_byte( 0x20, 0x02);
  write_6752_single_byte( 0x30, 0x01);
  write_6752_single_byte( 0x31, 0x00);
  write_6752_single_byte( 0x32, 0x00);
  write_6752_single_byte( 0x33, 0x01);
  write_6752_single_byte( 0x34, 0x00);
  write_6752_single_byte( 0x40, 0x00);
  write_6752_single_byte( 0x41, 0x00);
  write_6752_single_byte( 0x42, 0x00);
  write_6752_single_byte( 0x43, 0x00);
  reg_buffer[0]=0x00;
  reg_buffer[1]=0x00;
  write_6752_multi_byte( 0x44, 2);
  reg_buffer[0]=0x00;
  reg_buffer[1]=0x00;
  write_6752_multi_byte( 0x45, 2);
  write_6752_single_byte( 0x46, 0x00);
  write_6752_single_byte( 0x47, 0x00);
  write_6752_single_byte( 0x50, 0x00);
  reg_buffer[0]=0x33;
  reg_buffer[1]=0x20;
  reg_buffer[2]=0x16;
  reg_buffer[3]=0x0d;
  write_6752_multi_byte( 0x51, 4);
  reg_buffer[0]=0x0A;
  reg_buffer[1]=0x0F;
  reg_buffer[2]=0x14;
  write_6752_multi_byte( 0x52, 3);
  write_6752_single_byte( 0x53, 0x00);
  reg_buffer[0]=0x00;
  reg_buffer[1]=0x01;
  reg_buffer[2]=0x00;
  reg_buffer[3]=0x00;
  write_6752_multi_byte( 0x54, 16);
  write_6752_single_byte( 0x55, 0x08);
  write_6752_single_byte( 0x61, 0x00);
  write_6752_single_byte( 0x63, 0x00);
  write_6752_single_byte( 0x65, 0x00);
  write_6752_single_byte( 0x70, 0x00);
  write_6752_single_byte( 0x71, 0x01);
  reg_buffer[0]=0x03;
  reg_buffer[1]=0x0a;
  write_6752_multi_byte( 0x72, 2);
  reg_buffer[0]=0x00;
  reg_buffer[1]=0x00;
  write_6752_multi_byte( 0x73, 64);
  write_6752_single_byte( 0x74, 0x00);
  write_6752_single_byte( 0x75, 0x00);
  write_6752_multi_byte( 0x76, 64);
  reg_buffer[0]=0x00;
  reg_buffer[1]=0x00;
  write_6752_multi_byte( 0x77, 2);
  write_6752_single_byte( 0x78, 0x20);
  write_6752_single_byte( 0x7B, 0x00);
  write_6752_single_byte( 0x7C, 0x00);
  write_6752_single_byte( 0x7D, 0x00);
  reg_buffer[0]=0x07;
  reg_buffer[1]=0xd0;
  write_6752_multi_byte( 0x80, 2);
  reg_buffer[0]=0x0f;
  reg_buffer[1]=0xa0;
  write_6752_multi_byte( 0x81, 2);
  write_6752_single_byte( 0x82, 0x04);
  write_6752_single_byte( 0x83, 0x0C);
  write_6752_single_byte( 0x84, 0x80);
  write_6752_single_byte( 0x90, 0x00);
  write_6752_single_byte( 0x91, 0x00);
  write_6752_single_byte( 0x92, 0x00);
  write_6752_single_byte( 0x93, 0x00);
  write_6752_single_byte( 0x94, 0x00);
  write_6752_single_byte( 0x95, 0x00);
  write_6752_single_byte( 0x96, 0x00);
  write_6752_single_byte( 0xA4, 0x00);
  write_6752_single_byte( 0xB0, 0x05);
  reg_buffer[0]=0x12;
  reg_buffer[1]=0xc0;
  write_6752_multi_byte( 0xB1, 2);
  reg_buffer[0]=0x00;
  reg_buffer[1]=0x00;
  write_6752_multi_byte( 0xB2, 2);
  write_6752_single_byte( 0xB3, 0xE0);
  write_6752_single_byte( 0xB4, 0xC0);
  write_6752_single_byte( 0xB5, 0x00);
  write_6752_single_byte( 0xB6, 0x12);
  write_6752_single_byte( 0xB7, 0x00);
  write_6752_single_byte( 0xB9, 0x00);
  reg_buffer[0]=0x01;
  reg_buffer[1]=0x00;
  write_6752_multi_byte(0xC0,2);
  reg_buffer[0]=0x01;
  reg_buffer[1]=0x03;
  write_6752_multi_byte(0xC1,2);

  write_6752_PAT();
  write_6752_PMT();
  write_6752_SIT();

  write_6752_single_byte(0xC3,0x00);
  reg_buffer[0]=0x01;
  reg_buffer[1]=0x04;
  write_6752_multi_byte(0xC4,2);
  write_6752_single_byte(0xD0,0x01);
  reg_buffer[0]=0x00;
  reg_buffer[1]=0x00;
  write_6752_multi_byte(0xF6,2);



  while(1)
 {
  REDLED = ~REDLED;
  printf("\nplease select 1,2,3,4,5,6,7,8,9,10:\n");
  printf("       1:write the FQ1216 Tuner Part.\n");
  printf("       2:Read the FQ1216 Tuner Part.\n");
  printf("       3:write the FQ1216 IF Part.\n");
  printf("       4:Read the FQ1216 IF Part.\n");
  printf("       5:Read the single register in saa6752.\n");
  printf("       6:write the single register in saa6752.\n");
  printf("       7:Read the single register in saa7115.\n");
  printf("       8:write the single register in saa7115.\n");
  printf("       9:Read the multi-byte register in saa6752.\n");
  printf("      10:mode transtion to saa6752: \n");
  scanf("%u",&option);
  if(option==1)
  {
  	printf("\nplease input db1:\n");
	scanf("%x",&gl_tndb1);
	printf("\nplease input db2:\n");
	scanf("%x",&gl_tndb2);
	printf("\nplease input cb:\n");
	scanf("%x",&gl_tncb);
	printf("\nplease input bb:\n");
	scanf("%x",&gl_tnbb);
	printf("\nplease input ab:\n");
	scanf("%x",&gl_tnab);
    write_tuner(gl_tndb1,gl_tndb2,gl_tncb,gl_tnbb,gl_tnab);
  }
  else if(option==2)
  {
    read_tuner();
  }
  else if (option==3)
  {
 	printf("\nplease input b:\n");
	scanf("%x",&gl_ifb);
	printf("\nplease input c:\n");
	scanf("%x",&gl_ifc);
	printf("\nplease input e:\n");
	scanf("%x",&gl_ife);
    write_IF(gl_ifb,gl_ifc,gl_ife);
  }
  else if (option==4)
  {
    read_IF();
  }
  else if(option==5)
  {
	  printf("\nplease input the register address you wanna read:\n");
	  scanf("%x",&reg_addr);
	  if(read_6752_single_byte(reg_addr))
	     printf("\nsuccess and the register value is: %x ",read_reg);
	  else 
	     printf("\nfail to read saa6752.");
  }
  else if(option==6)
  {
	  printf("\nplease input the register address you wanna write:\n");
	  scanf("%x",&reg_addr);
	  printf("\nplease input the register value you wanna write:\n");
      scanf("%x",&write_reg);
	  if(write_6752_single_byte(reg_addr,write_reg))
	     printf("\nsuccess to write saa6752.\n");
	  else
	     printf("fail to write saa6752.\n");
  }
  else if(option==10)
  {
    printf("\nplease input the mode transition:\n");
    scanf("%x",&reg_addr);
    if(mode_transition(reg_addr))
    printf("transition success!");
    else   printf("transition error!");
  }
  else if(option==9)
  {
    printf("\nplease input the  register address you wanna read:\n");
    scanf("%x",&reg_addr);
    printf("\nplease input the register byte number:\n"); 
    scanf("%u",&byte_number);
    if(read_6752_multi_byte( reg_addr , byte_number ))
      printf("read saa6752 success and the register value is:\n");
    for(I=0;I<byte_number;I++)
      printf(" %x \n", reg_buffer[I]);
  }
  else if(option==7)
  {    
      printf("\nplease input the register address you wanna read:\n");
	  scanf("%x",&reg_addr);
	  if(read_7115_single_byte(reg_addr))
	     printf("\nsuccess and the register value is: %x ",read_reg);
	  else 
	     printf("\nfail to read saa7115.\n");
  }
  else if(option==8)
  {
	  printf("\nplease input the register address you wanna write:\n");
	  scanf("%x",&reg_addr);
	  printf("\nplease input the register value you wanna write:\n");
      scanf("%x",&write_reg);
	  if(write_7115_single_byte(reg_addr,write_reg))
	     printf("\nsuccess to write saa7115.\n");
	  else
	     printf("\nfail to write saa7115.\n");
  }
 }  
}