ILI9488,ILI9486,ILI9481,ST7796S,HX8357D 3W-SPI读ID

用户6123590569085
710 阅读1分钟

一、HX8357D:

先下指令：

write_cmd(0xB9);

write_para(0xFF);

write_para(0x83);

write_para(0x57);

write_cmd(0xFE );

write_para(0xD0);

read_data(0xFF,one_byte_return); 

//Read HX8357-D ID=99h  读0XFF返回0x99刚是HX8357D

二、 ****ILI9488与ILI9486读ID流程一样

\

void DispRegValue(void)
{
unsigned char i=0;
unsigned char id1,id2,id3,id4;

SPI_CS=0;

SPI_RES=1;
Delay(160);      // delay 40 ms
SPI_RES=0;
Delay(160);        // delay 40 ms

 SPI_RES=1;

Delay(480);        // delay 120 ms

\

 //Adjust Control 3 
SPI_WriteComm(0XF7);
SPI_WriteData(0xA9);
SPI_WriteData(0x51);
SPI_WriteData(0x2C);
SPI_WriteData(0x82);

//3W-SDA read id

 SPI_WriteComm(0XB0);
SPI_WriteData(0X80); //byte1

SPI_WriteComm(0XFB);
SPI_WriteData(0X80);
id1=Read_chipID(0xd3);    //Parameter1=DUMMY 无效

SPI_WriteComm(0X2E);
SPI_WriteData(0X81); //Parameter2=0X88 无效
id2=Read_chipID(0xd3);

SPI_WriteComm(0XFB);
SPI_WriteData(0X82); //Parameter3=0X94 有用

id3=Read_chipID(0xd3);

SPI_WriteComm(0XFB);
SPI_WriteData(0X83);//Parameter4=0X88 ,9486为0X86
id4=Read_chipID(0xd3);
}

unsigned int Read_chipID(unsigned char regist)
{  
unsigned char i,dat=0x00;
DIR=0; //MCU send data to driver ic
SPI_CS=0;
SPI_DI=0;
SPI_CLK=0;
SPI_CLK=1; //写0XD3
for(i=8;i>0;i--) 
{
regist<<=1;
SPI_DI=CY;
SPI_CLK=0;
nop();nop();nop();nop();
SPI_CLK=1;
}
SPI_DI=1;    //读之前将SDA拉高
Delay(80);    //延时20ms
for(i=8;i>0;i--)   
{  
SPI_CLK=0;
Delay(4); //1ms
SPI_CLK=1;
dat<<=1;   //MCU read data from driver ic
if(SPI_DI)
{
dat++;
} 
}
DIR=0;     //MCU send data to driver ic
CS0=1;  
DIR=0;
return dat;
}

\

三、ILI9481读BF寄存器，可以读到ID，第四，第五个字节为需要的ID\

复位过后写C6H再去读BFH

\

void DispRegValue(void)
{

unsigned char i=0, id1,id2,id3,id4;
SPI_CS=0;\

SPI_RES=1;
Delay(160);         // delay 40 ms
SPI_RES=0;
Delay(160);        // delay 40 ms

 SPI_RES=1;

\

Delay(480);        // delay 120 ms

//3W-SDA read id

SPI_WriteComm(0xC6);

SPI_WriteData(0X80);        //SDA读使能

id1=Read_chipID(0XBF);    //byte1=0X02

id2=Read_chipID(0XBF);    //byte2=0x04有用

id3=Read_chipID(0XBF);  //byte3=0X94 有用

id4=Read_chipID(0XBF);    //byte4=0X81 有用

id5=Read_chipID(0XBF);    //byte5=0XFF 有用

}

unsigned int Read_chipID(unsigned char regist)
{  
unsigned char i,dat=0x00;

DIR=0;         //MCU send data to driver ic

SPI_CS=0;
SPI_DI=0;
SPI_CLK=0;
SPI_CLK=1;     //写0XBF
for(i=8;i>0;i--) 
{
regist<<=1;
SPI_DI=CY;
SPI_CLK=0;
nop();nop();nop();nop();
SPI_CLK=1;
}
SPI_DI=1;    //读之前将SDA拉高
Delay(80);    //延时20ms
for(i=8;i>0;i--)   
{  
SPI_CLK=0;
Delay(4); //1ms
SPI_CLK=1;
dat<<=1;  

DIR=1;    //MCU read data from driver ic

    if(SPI_DI)
{
dat++;
} 
}
DIR=0;     //MCU send data to driver ic
CS0=1;  
DIR=0;
return dat;
}

送完初始化后先下以下指令

write_cmd(0xc6);

write_dat(0x82);

\

四、 ST7796S读BF寄存器，可以读到ID，第三，第四个字节为需要的ID值

复位过后：FBH送偏移量，再读D3H

\

void DispRegValue(void)
{\

unsigned char i=0;
unsigned char id1,id2,id3,id4;
SPI_CS=0;

SPI_RES=1;
Delay(160);          // delay 40 ms
SPI_RES=0;
Delay(160);        // delay 40 ms

 SPI_RES=1;

Delay(480);        // delay 120 ms

\

SPI_WriteComm(0XFB);
SPI_WriteData(0X10);
id1=Read_chipID(0xd3);    //Parameter1=0x00无效

SPI_WriteComm(0XFB);
SPI_WriteData(0X11); //Parameter2=0X77 有用
id2=Read_chipID(0xd3);

SPI_WriteComm(0XFB);
SPI_WriteData(0X12); //Parameter3=0X96 有用

id3=Read_chipID(0xd3);

\

SPI_WriteComm(0XFB);
SPI_WriteData(0X13); //Parameter3=0X00 有用

id3=Read_chipID(0xd3);

}

unsigned int Read_chipID(unsigned char regist)
{  
unsigned char i,dat=0x00;
DIR=0;         //MCU send data to driver ic

SPI_CS=0;
SPI_DI=0;
SPI_CLK=0;
SPI_CLK=1; //写0xd3
for(i=8;i>0;i--) 
{
regist<<=1;
SPI_DI=CY;
SPI_CLK=0;
nop();nop();nop();nop();
SPI_CLK=1;
}
SPI_DI=1;//读之前将SDA拉高
Delay(80);//延时20ms
for(i=8;i>0;i--)   
{  
SPI_CLK=0;
Delay(4); //1ms
SPI_CLK=1;
dat<<=1;  

DIR=1;    //MCU read data from driver ic

    if(SPI_DI)
{
dat++;
} 
}
DIR=0; //MCU send data to driver ic
CS0=1;  
DIR=0;
return dat;
}weibo.com/7767434148/Lztj8txTe weibo.com/7767434148/LzYluD7hc weibo.com/7767434148/LzYg0dMDg weibo.com/7767434148/LzYe7wGAF weibo.com/7767434148/LzYe1Eghm weibo.com/7767434148/LzYdY4rHJ weibo.com/7767434148/LzYdT5fGj weibo.com/7767434148/LzYdPgU5v weibo.com/7767434148/LzYdKrCwr weibo.com/7767434148/LzYdFvIdp weibo.com/7767434148/LzYdBFbat weibo.com/7767434148/LzYdx9V7C weibo.com/7767434148/LzYdokaWs weibo.com/7767434148/LzYdjgAob weibo.com/7767434148/LzYapEb4E weibo.com/7767434148/LzYaj73BG weibo.com/7767434148/LzYafy5Ni weibo.com/7767434148/LzYa9rmWb weibo.com/7767434148/LzYa6blxg weibo.com/7767434148/LzYa2DuAK weibo.com/7767434148/LzY9YqXqp weibo.com/7767434148/LzY9vtqpy weibo.com/7767434148/LzY9pzU7k weibo.com/7767434148/LzY9lrL11 weibo.com/7767434148/LzY9iuqG1 weibo.com/7767434148/LzY9elbkK weibo.com/7767434148/LzY9awPTl weibo.com/7767434148/LzY94A018 weibo.com/7767434148/LzY8ZBUJe weibo.com/7767434148/LzY8W3c2n weibo.com/7767434148/LzY467HGO weibo.com/7767434148/LzY3Zn7xb 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