lcd.c

来自「在IAR环境下」· C语言 代码 · 共 59 行

#include "LCD.h" 

void WriteDataToLCD( char data)
{	
	SSIDataPut(SSI0_BASE, 0xFA);  
	SSIDataPut(SSI0_BASE, data & 0xF0);
	SSIDataPut(SSI0_BASE, data << 4);
}

void WriteCommandToLCD(char command)
{	
	SSIDataPut(SSI0_BASE, 0xF8);
	SSIDataPut(SSI0_BASE, command & 0xF0);
	SSIDataPut(SSI0_BASE, command << 4);
}

void InitLCD(void)
{   
	  SysCtlDelay(200 * (TheSysClock / 3000));
	WriteCommandToLCD(0x30);
	  SysCtlDelay(200 * (TheSysClock / 3000));
	WriteCommandToLCD(0x30);
	  SysCtlDelay(200* (TheSysClock / 3000));
	WriteCommandToLCD(0x0c);
	  SysCtlDelay(200* (TheSysClock / 3000));
	WriteCommandToLCD(0x01);
	  SysCtlDelay(200* (TheSysClock / 3000));
	WriteCommandToLCD(0x06);
	  SysCtlDelay(200* (TheSysClock / 3000));
}

void LCMShowHZ(char row,char *Dat,char Length)
{
	unsigned char i;
	
	switch(row)
	{
		case 0x01 : WriteCommandToLCD(0x80);
					break;
		case 0x02 : WriteCommandToLCD(0x90);
					break;
		case 0x03 : WriteCommandToLCD(0x88);
					break;
		case 0x04 : WriteCommandToLCD(0x98);
					break;
	}
         SysCtlDelay(200* (TheSysClock / 3000));
	for(i = 0; i < Length; i++)
	{
		WriteDataToLCD(*Dat);
                // SysCtlDelay(200* (TheSysClock / 3000));
		Dat++;
	}
}