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標題: 1.8寸屏幕，已知屏的引腳定義，驅動代碼，求教51單片機怎么驅動連接？ [打印本頁]

作者: 廖先生 時間: 2018-4-13 17:40
標題: 1.8寸屏幕，已知屏的引腳定義，驅動代碼，求教51單片機怎么驅動連接？
求教。。。。
已知屏的引腳定義，和驅動代碼，我自己搗鼓好久都搞不定，求大佬指教！！！謝謝
屏的驅動IC是 ST7735S
這是屏自帶的代碼：
WriteComm(0X11); //Sleep Out
Delay(120); //Delay 120Ms
WriteComm(0Xb1);
WriteData(0X01);
WriteData(0X08);
WriteData(0X05);
WriteComm(0Xb2);
WriteData(0X01);
WriteData(0X2C);
WriteData(0X2D);
WriteComm(0Xb3);
WriteData(0X01);
WriteData(0X2C);
WriteData(0X2D);

WriteData(0X01);
WriteData(0X2C);
WriteData(0X2D);
WriteComm(0Xb4); //Column Inversion
WriteData(0X00);
WriteComm(0Xc0);
WriteData(0Xa2);
WriteData(0X02);
WriteData(0X84);
WriteComm(0Xc1);
WriteData(0Xcf);
WriteComm(0Xc2);
WriteData(0X0D);
WriteData(0X00);
WriteComm(0Xc3);
WriteData(0X8A);
WriteData(0X2A);
WriteComm(0Xc4);
WriteData(0X8A);
WriteData(0Xee);
WriteComm(0Xc5); //Vcom
WriteData(0X2C);
WriteComm(0X36); //Mx, My, Rgb Mode
WriteData(0Xc8);
WriteComm(0Xe0);
WriteData(0X05);
WriteData(0X11);
WriteData(0X0E);
WriteData(0X19);
WriteData(0X3A);
WriteData(0X33);
WriteData(0X29);
WriteData(0X2A);
WriteData(0X26);
WriteData(0X21);
WriteData(0X26);
WriteData(0X3B);
WriteData(0X00);
WriteData(0X01);
WriteData(0X03);
WriteData(0X10);
WriteComm(0Xe1);
WriteData(0X05);
WriteData(0X11);
WriteData(0X0E);
WriteData(0X19);
WriteData(0X36);
WriteData(0X30);
WriteData(0X2B);
WriteData(0X30);
WriteData(0X31);
WriteData(0X31);
WriteData(0X3B);
WriteData(0X3F);
WriteData(0X00);
WriteData(0X02);
WriteData(0X03);
WriteData(0X10);
WriteComm(0X3A); //65K Mode
WriteData(0X05);
WriteComm(0x29); //Display on

WriteComm(0x36); //Display on
WriteData(0x1c); // SC15-8
WriteComm(0x2c);

QQ截圖20180413173944.png (36.54 KB, 下載次數: 30)

SPEC-QTB1D8047-V1.pdf

418.2 KB, 下載次數: 9

屏的數據手冊

作者: yzwzfyz 時間: 2018-4-13 21:39
說明你還未掌握單片機的工作原理，先補補課吧。

作者: QIANLILI 時間: 2018-4-13 22:56
本帖最后由 QIANLILI 于 2018-4-14 10:35 編輯

TFT液晶屏的驅動  建議最好用低壓的單片機  如果要用C51的最好用STC8F系列。寬電壓。目前性價比也不錯。另外，樓主貼出的只是液晶屏的初始化程序。你還缺完整顯示代碼。接線的話DB0-DB7可以接P1端口的P1.0-P1.7  另外  CS RST  RS  WRB  RDB 也可以接P2端口的P2.0-P2.5  之后在程序中分別定義好。液晶的背光電源和液晶的電源，電壓不能超過標注電壓。一般不能大于3.7伏。雖然我也有試過接5伏的但是燒壞的概率很大。所以盡量選用寬電壓單片機。那樣單片機的電壓可以和液晶的一樣，用穩壓后3.3伏的電壓就可。看樓主的提問，感覺樓主對單片機都不是很了解。那么對液晶的驅動原理也應該不了解。確實需要先把單片機的其它功能和例程都玩的很熟練了，才能驅動好液晶模塊。
以下程序是驅動8位數據接口的液晶刷屏程序。你這個也是8位數據的。但是要套用，程序需要改動。液晶初始化代碼換成你要用的液晶的。還有你那個液晶的WriteData用的是8位。我這程序用的是16位。需要改一下。
因為我沒有你這種液晶屏。無法幫你修改程序及驗證測試。你可以自己看一下代碼。等你能看懂每一行的意思。那么你就能驅動好液晶屏了。

#define u8  unsigned char
#define u16 unsigned int
#define DBH  P1
sbit CS  = P3^2;
sbit RS  = P3^3;
sbit RD  = P3^4;
sbit WR  = P3^5;
sbit RST = P3^6;
#define RED 0xF800
#define GREEN  0x07E0
#define BLUE 0x001F
#define WHITE  0xFFFF
#define BLACK  0x0000

void Delay1ms()  [url=]//@12.000MHz[/url]
{
unsigned char i, j;
i = 16;
j = 147;
do
{
  while (--j);
} while (--i);
}

void delayms(unsigned int dly)
{
unsigned int i;
for(i=0;i<dly;i++)
{
Delay1ms();
  }
}

void WriteComm(u8 i)
{
CS=0;
RD=1;
RS=0;
DBH=i;
WR=0;
WR=1;
CS=1;
}

void WriteData(u16 color)
{
CS=0;
RD=1;
RS=1;
DBH=color>>8;
WR=0;
WR=1;
DBH=color;
WR=0;
WR=1;
CS=1;
}
void LCD_Init(void)
{
RST = 0;
delayms(100);
RST = 1;
delayms(100);
WriteComm(0x2C);
delayms(10);
WriteComm(0x02);
WriteComm(0x00);
WriteComm(0x28);
WriteComm(0x01);
WriteComm(0x45); //RAM Skip AREA set
WriteComm(0x00);
WriteComm(0x53);
WriteComm(0x00);
WriteComm(0x10);
WriteComm(0x03);
WriteComm(0x30);
WriteComm(0x1d);
WriteComm(0x32);
WriteComm(0x0e);
WriteComm(0x40);
WriteComm(0x80);
WriteComm(0x42); //Y ADDRESS
WriteComm(0x02);
WriteComm(130);
WriteComm(0x43); //X ADDRESS
WriteComm(0x04);
WriteComm(130);
WriteComm(0x34);
WriteComm(0x8d);
WriteComm(0x2a);
WriteComm(0x42);
WriteComm(0x55);
WriteComm(0x00);
WriteComm(0x56);
WriteComm(0x00);
WriteComm(0x57);
WriteComm(0x9f);
WriteComm(0x51);
}

void SETWINDOWS(u16 Xstart,u16 Xend,u16 Ystart,u16 Yend)
{
WriteComm(0x42);
WriteComm(Ystart);
WriteComm(Yend);

WriteComm(0x43);
WriteComm(Xstart);
WriteComm(Xend);
}

void DispColor(u16 color)
{
u16 i,j;
SETWINDOWS(0,130-1,0,130-1);
CS=0;
RD=1;
RS=1;
for(i=0;i<130;i++)
{
      for(j=0;j<130;j++)
      {
         DBH=color>>8;
         WR=0;
         WR=1;
         DBH=color;
         WR=0;
         WR=1;
      }
}
CS=1;
}

void main(void)
{
LCD_Init();
DispColor(0xFFFF);
while(1)
{
      DispColor(0xF800);
      delayms(2000);
      DispColor(0x07C0);
      delayms(2000);
      DispColor(0x003F);
      delayms(2000);
   }
}

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