TFT.zip_TFT液晶

#include "reg52.h" #include "intrins.h" #define uint8_t unsigned char #define uint16_t unsigned int sbit GT_CS = P2^5; sbit LCM_CS = P2^4; sbit LCM_RST = P2^3; sbit LCM_WR = P2^6; sbit LCM_A0 = P2^1; sbit LCM_A1 = P2^2; #define LCM_BUS P0 #define LCM_ADDR_BUFFER 0x00 #define LCM_ADDR_ROWSET 0x01 #define LCM_ADDR_COLSET 0x02 #define LCM_ADDR_PAGESET 0x03 #define LCM_WIDTH 320 #define LCM_HEIGHT 240 #define COLOR_WHITE 0xFF #define COLOR_RED 0xE0 #define COLOR_GREEN 0x1C #define COLOR_BLUE 0x03 //0x03 void LCM_Write(uint8_t addr, uint8_t dat); void delay_cnt(uint8_t count); void delay_cnt(uint8_t count){ for (; count>0; count--); } void LCM_Write(uint8_t addr, uint8_t dat){ //选中LCM LCM_CS = 0; //设定地址线状态 switch (addr){ case LCM_ADDR_BUFFER: LCM_A0 = 0; LCM_A1 = 0; break; case LCM_ADDR_ROWSET: LCM_A0 = 1; LCM_A1 = 0; break; case LCM_ADDR_COLSET: LCM_A0 = 0; LCM_A1 = 1; break; case LCM_ADDR_PAGESET: LCM_A0 = 1; LCM_A1 = 1; break; } //将数据送至LCM总线 LCM_BUS = dat; //写入数据 LCM_WR = 0; //delay_cnt(2); LCM_WR = 1; //取消选中LCM LCM_CS = 1; } /* void LCM_RCDelay(uint8_t cnt){ //delay_cnt(0); _nop_(); } */ #define LCM_RCDelay(x) //_nop_(); void main(void) { uint16_t row, col; delay_cnt(255); delay_cnt(255); delay_cnt(255); delay_cnt(255); delay_cnt(255); delay_cnt(255); delay_cnt(255); delay_cnt(255); delay_cnt(255); delay_cnt(255); delay_cnt(255); delay_cnt(255); delay_cnt(255); delay_cnt(255); P2 = 0xff; //低电平复位，至少持续?ms LCM_RST = 0; delay_cnt(255); LCM_RST = 1; delay_cnt(255); LCM_Write(LCM_ADDR_PAGESET, 0); LCM_RCDelay(0); // do{ //清屏 //行地址为8位，直接写入 LCM_Write(LCM_ADDR_ROWSET, 0); LCM_RCDelay(0); //列地址为16位，每次写8位，低位先写，高位后写 LCM_Write(LCM_ADDR_COLSET, 0); LCM_RCDelay(0); LCM_Write(LCM_ADDR_COLSET, 0); LCM_RCDelay(0); for (row=0; row<LCM_HEIGHT; row++){ for (col=0; col<320; col++){ LCM_Write(LCM_ADDR_BUFFER, 0); } //for (col=0; col<LCM_WIDTH; col++) } //for (row=0; row<LCM_HEIGHT; row++) //行地址为8位，直接写入 LCM_RCDelay(0); LCM_Write(LCM_ADDR_ROWSET, 0); LCM_RCDelay(0); //列地址为16位，每次写8位，低位先写，高位后写 LCM_Write(LCM_ADDR_COLSET, 0); LCM_RCDelay(0); LCM_Write(LCM_ADDR_COLSET, 0); LCM_RCDelay(0); for (row=0; row<241; row++){ for (col=0; col<LCM_WIDTH; col++){ LCM_Write(LCM_ADDR_BUFFER, COLOR_RED); } //for (col=0; col<LCM_WIDTH; col++) } //for (row=0; row<LCM_HEIGHT; row++) while(1); } //行地址为8位，直接写入 // LCM_RCDelay(0); // LCM_Write(LCM_ADDR_ROWSET, 0); // LCM_RCDelay(0); // // //列地址为16位，每次写8位，低位先写，高位后写 // LCM_Write(LCM_ADDR_COLSET, 0); // LCM_RCDelay(0); // LCM_Write(LCM_ADDR_COLSET, 0); // LCM_RCDelay(0); // // for (row=0; row<241; row++){ // for (col=0; col<330; col++){ // LCM_Write(LCM_ADDR_BUFFER, COLOR_GREEN); // } //for (col=0; col<LCM_WIDTH; col++) // } // } //for (row=0; row<LCM_HEIGHT; row++) //行地址为8位，直接写入 // LCM_RCDelay(0); // LCM_Write(LCM_ADDR_ROWSET, 0); // LCM_RCDelay(0); // // //列地址为16位，每次写8位，低位先写，高位后写 // LCM_Write(LCM_ADDR_COLSET, 0); // LCM_RCDelay(0); // LCM_Write(LCM_ADDR_COLSET, 0); // LCM_RCDelay(0); // // for (row=0; row<241; row++){ // for (col=0; col<LCM_WIDTH; col++){ // LCM_Write(LCM_ADDR_BUFFER, COLOR_BLUE); // } //for (col=0; col<LCM_WIDTH; col++) // } // while(1); //} //for (row=0; row<LCM_HEIGHT; row++) // // //行地址为8位，直接写入 // LCM_RCDelay(0); // LCM_Write(LCM_ADDR_ROWSET, 0); // LCM_RCDelay(0); // // //列地址为16位，每次写8位，低位先写，高位后写 // LCM_Write(LCM_ADDR_COLSET, 0); // LCM_RCDelay(0); // LCM_Write(LCM_ADDR_COLSET, 0); // LCM_RCDelay(0); // // LCM_Write(LCM_ADDR_BUFFER, COLOR_BLUE); // {P1=0xfa;} // // } // while(1); //}