lcd.rar_arm显示lcd

#include "LPC23XX.h" #include "CONFIG.H" //set IO void FIO_Set(unsigned char port ,unsigned int pin) { switch(port) { case 0: FIO0SET = pin; break; case 1: FIO1SET = pin; break; case 2: FIO2SET = pin; break; case 3: FIO3SET = pin; break; case 4: FIO4SET = pin; break; default: break; } } //clear IO void FIO_Clr(unsigned char port, unsigned int pin) { switch(port) { case 0: FIO0CLR = pin; break; case 1: FIO1CLR = pin; break; case 2: FIO2CLR = pin; break; case 3: FIO3CLR = pin; break; case 4: FIO4CLR = pin; break; default: break; } } void config_IO(void) { SCS |= 1; //允许P0、P1的高速GPIO功能 PINSEL10 = 0; //禁止EMC //LCD PINSEL4 &= 0xfffc0000; //P2.0~P2.8用于I/O口 FIO0DIR |=LCD_CS|LCD_RS|LCD_WR|LCD_RST; FIO2DIRL |= 0x01ff; //P2.0~P2.8输出方向 } /*Write Data to P2*/ void WR_BUS(euint8 data) { euint8 i = 0; i = data; FIO2SET0 = i; i= (~i); FIO2CLR0 = i; } /*Delay*/ void LCD_Delay(euint32 time) { euint32 i,j; for(i=0;i<time;i++) for(j=0;j<20;j++) ; } /*Write Regist Cmd to LCD*/ void CmdWrite(euint8 cmdreg,euint8 cmddata) { WR_BUS( cmdreg ); //Write Regist Address FIO_Clr( PORT0, LCD_CS ); FIO_Clr( PORT0, LCD_RS ); FIO_Clr( PORT0, LCD_WR ); LCD_Delay( 1 ); FIO_Set( PORT0, LCD_WR ); LCD_Delay( 1 ); FIO_Set( PORT0, LCD_RS ); FIO_Set( PORT0, LCD_CS ); WR_BUS( cmddata ); //Write Data FIO_Clr( PORT0, LCD_CS ); FIO_Clr( PORT0, LCD_RS ); FIO_Clr( PORT0, LCD_WR ); LCD_Delay( 1 ); FIO_Set( PORT0, LCD_WR ); LCD_Delay( 1 ); FIO_Set( PORT0, LCD_RS ); FIO_Set( PORT0, LCD_CS ); } /*Write Data to LCD*/ void DataWrite(euint8 wrdata) { FIO_Set( PORT0, LCD_WR ); FIO_Set( PORT0, LCD_RS ); WR_BUS(wrdata); FIO_Clr( PORT0, LCD_CS ); FIO_Clr( PORT0, LCD_WR ); LCD_Delay( 1 ); FIO_Set( PORT0, LCD_WR); LCD_Delay( 1 ); FIO_Clr( PORT0, LCD_RS); FIO_Set( PORT0, LCD_CS); } //Set Cursor void Set_Cursor(euint8 x,euint8 y) { CmdWrite( 0x60, x ); CmdWrite( 0x70, y ); } void Printstr(euint8 x,euint8 y,euint8 *str) { Set_Cursor(x,y); while(*str!=0) { DataWrite(*str); str++; LCD_Delay(1); } } /*LCD Reset and Initial*/ void LCD_Initial(void) { FIO_Set( PORT0, LCD_WR ); FIO_Set( PORT0, LCD_RS ); FIO_Set( PORT0, LCD_CS ); WR_BUS( 0XFF ); FIO_Clr( PORT0, LCD_RST ); LCD_Delay( 1 ); FIO_Set( PORT0, LCD_RST ); LCD_Delay( 4000 ); CmdWrite(0x00,0xcd); //正常模式；文本模式；显示关开：开；屏幕闪烁：否；显示类型：正向 CmdWrite(0x90,0x0d); //移位时钟 CmdWrite(0x11,0x00); //光标高度：1；行距：0 CmdWrite(0x03,0x80); //高低位反转：否；垂直移动：禁止；水平移动：禁止；平移模式：垂直移动 CmdWrite(0x10,0x6b); //读数据时，光标自动移位：否；中英文对齐：是；正反相存储：正相；字体设置：正常； //写数据时，光标自动移位：是；光标显示：关；光标闪烁：是；光标宽度：8或16 // CmdWrite(0x12,0x91); //图形 CmdWrite(0x20,0x17); //工作视窗右边位置 CmdWrite(0x30,0x7f); //工作视窗底部位置 CmdWrite(0x40,0x00); //工作视窗左边位置 CmdWrite(0x50,0x00); //工作视窗顶部位置 CmdWrite(0x21,0x17); //显示视窗右边位置 CmdWrite(0x31,0x80); //显示视窗底部位置 CmdWrite(0x41,0x00); //显示视窗左边位置 CmdWrite(0x51,0x00); //显示视窗顶部位置 CmdWrite(0x60,0x00); //设定X坐标 CmdWrite(0x70,0x00); //设定Y坐标 // CmdWrite(0xe0,0x00); //图形 CmdWrite(0xf0,0xa0); //简体字型 CmdWrite(0xf1,0x0f); //字型大小 CmdWrite(0xe0,0x00); //清屏 CmdWrite(0xf0,0xa8); LCD_Delay( 300 ); //2ms Printstr(0x05,0x38,"LPC2378开发板"); } int main() { config_IO(); LCD_Initial(); while(1){ } }