📄 r_w.c
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#include<reg51.h>
#include<stdio.h>
#include "i2c.h"
#define WRITE_7115 0x42 //定义7115的芯片写地址
#define READ_7115 0x43 //定义7115的芯片读地址
#define FALSE 0
#define TRUE 1
sbit RES_7115 = 0xA2;
sbit RES_6752 = 0xA3;
sbit REDLED = 0xA1;
sbit BLUELED = 0xA0;
//以下定义saa6752五种工作模式转换命令
#define soft_reset 0x00
#define enable 0x01
#define start 0x02
#define stop 0x03
#define pause 0x04
#define reconfigure 0x05
#define sleep 0x06
#define forced_reconfigure 0x07
#define BYTE_SIZE 64
unsigned int data read_reg; //定义变量存储读得寄存器值
unsigned int data option; //定义选择标志
unsigned int data reg_addr; //定义寄存器子地址
unsigned int data write_reg; //定义写入寄存器值
unsigned int xdata reg_buffer[BYTE_SIZE]={0x00}; //定义外部数据缓冲区用于存储多字节写6752寄存器值
unsigned char code C2_buffer_PAT[26]={0,71,64,0,16,0,0,176,17,0,0,193,0,0,0,0,224,16,0,1,224,32,211,106,240,172}; //定义数组存储C2地址189个字节的数据
unsigned char code C2_buffer_PMT[44]={1,71,64,32,16,0,2,176,35,0,1,193,0,0,225,4,240,12,11,2,64,31,16,6,192,107,108,192,6,0,2,225,0,240,0,3,225,3,240,0,18,47,233,137};
unsigned char code C2_buffer_SIT[53]={4,71,64,31,16,0,127,240,44,255,255,193,0,0,240,10,99,8,192,146,124,255,255,255,255,255,0,1,192,19,72,17,7,7,80,104,105,108,105,112,115,7,69,77,80,82,69,83,83,83,94,18,58};
bit address_7115(unsigned int s_address) //向7115写入芯片从地址和片内字节地址
{ //写入成功则返回1，否则返回0
I_init();
I_start();
if(I_send(WRITE_7115))
return (I_send(s_address));
else
return (FALSE);
}
bit read_7115_single_byte(unsigned int subaddress) //对7115片内指定寄存器读取,subaddress为寄存器地址
{
//读得值存于read_reg中，读取成功返回1，否则返回0
if(address_7115((unsigned char)subaddress))
{
I_start();
if(I_send(READ_7115))
{
read_reg=I_receive();
return(TRUE);
}
else
{
I_stop();
return(FALSE);
}
}
else
I_stop();
return(FALSE);
}
bit write_7115_single_byte(unsigned int subaddress,unsigned int write_value) //对7115片内寄存器写入值，subaddress为寄存器值
{ //write_value为写入值，写入成功返回1，否则返回0
if(address_7115((unsigned char)subaddress)&I_send((unsigned char)write_value))
I_stop();
else
return(FALSE);
return(TRUE);
}
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);
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",®_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",®_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",®_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",®_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",®_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",®_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");
}
}
}
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