lcdtest.c

测试LCM模块AVR应用

// Send a string to LCD screen
void SendStr(uint8 *ptString)
{
	while((*ptString)!='\0')
	{
		SendByte(iDat, *ptString++);
		DelayMs(20);
	}
}

// Move Cursor or display
void Move(uint8 dir)
{
	SendByte(iCmd, dir);
}

// Goto specific location
void Gotoxy(uint8 Row, uint8 Col)
{
	#if defined(LCD_L2)
	switch (Row)
	{
		case 2:
			SendByte(iCmd, LCD_L2 + Col); break;
		#if defined(LCD_L3)
		case 3:
			SendByte(iCmd, LCD_L3 + Col); break;
		#endif
		#if defined(LCD_L4)
		case 4:
			SendByte(iCmd, LCD_L4 + Col); break;
		#endif
		default:
			SendByte(iCmd, LCD_L1 + Col); break;
	}
	#endif
}

// Clear LCD screen
void Clear(void)
{
	SendByte(iCmd, LCD_CLS);
	DelayUs(2000);
	// 2ms delay is Necessary after sending LCD_CLS command !!!
}

// Tile LCD Screen with one data
void Tile(uint8 dByte)
{
	uint8 k;
	SendByte(iCmd, LCD_L1);
	for (k = 0; k < 48; k++)
	{
		if (k == 16)
		{
			SendByte(iCmd, LCD_L2);
		}
		if (k == 32)
		{
			SendByte(iCmd, LCD_L3);
		}
		if (k == 48)
		{
			SendByte(iCmd, LCD_L4);
		}
		SendByte(iDat, dByte);
	}
}
// Fill CGRAM with array CGRAM[]
void FillCGRAM(void)
{
	uint8 i;
	//SendByte(iCmd, 0x38);
	SendByte(iCmd, LCD_CGRAM_ADDR);
	for (i = 0; i < LCD_CGMAX; i++)
	{
		SendByte(iDat, CGRAM[i]);
	}
}

// Show All patterns in CGRAM
void ShowCGRAM(void)
{
	uint8 i,k;
	
	for (i = 0; i < 8; i++)
	{
		SendByte(iCmd, LCD_L1);
		for (k = 0; k < LCD_CHAR; k++)
		{
			#if defined(LCD_L2)
			switch (k)
			{
				case LCD_COL:
				SendByte(iCmd, LCD_L2); break;
				#if defined(LCD_L3)
				case LCD_COL*2:
				SendByte(iCmd, LCD_L3); break;
				#endif
				#if defined(LCD_L4)
				case LCD_COL*3:
				SendByte(iCmd, LCD_L4); break;
				#endif
				default:
				break;
			}
			#endif
			SendByte(iDat, i);
		}
		delay1s();
		delay500ms();
		Clear();
	}
}

// Call built-in Charactors
void CallBuiltinChar(void)
{
	uint8 i, k;
	for (i = 0; i < LCD_COL; i += LCD_ROW)
	{
		SendByte(iCmd, LCD_L1);
		for (k = 0; k < LCD_CHAR; k++)
		{
			#if defined(LCD_L2)
			switch (k)
			{
				case LCD_COL:
				SendByte(iCmd, LCD_L2); break;
				#if defined(LCD_L3)
				case LCD_COL*2:
				SendByte(iCmd, LCD_L3); break;
				#endif
				#if defined(LCD_L4)
				case LCD_COL*3:
				SendByte(iCmd, LCD_L4); break;
				#endif
				default:
				break;
			}
			#endif
			SendByte(iDat, k + LCD_COL*i);
		}
		delay1s();
		delay500ms();
		Clear();
	}
}
//===============================================
void test(void)
{
 	    FillCGRAM();
		ShowCGRAM();
		Gotoxy(2, 1);
		SendStr("LCD dispaly OK!");
		delay1s();
		delay1s();
		Clear();
		CallBuiltinChar();
		/*
		while(1)
		{	
			KeyPressHandler();
		}
		*/
		Lcd_Command(0x83);               //设置显示位址
        SendStr("======@_@======");      //显示字符串
        Lcd_Command(0x97);               //设置显示位址
        SendStr("welcome to vigour");      //显示字符串
        DelayMs(1000);                  //延迟1秒
        Lcd_Command(0x01);               //清除显示器
        Lcd_Command(0x83);               //设置显示位址
        SendStr("======^_^======");      //显示字符串
        Lcd_Command(0x94);               //设置显示位址
        SendStr("thank you very much"); //显示字符串
        DelayMs(1000);                  //延迟
        Lcd_Command(0x01);               //清除显示器

}