IBM H8 user manual Clearlcdrs Setlcdrw Lcddatactrl = Lcdin Setlcden

HTEB1

User manual

u8 LCDReadStatus(void)	// get the LCD status register
{
u8 status;
CLEAR_LCD_RS;
SET_LCD_RW;
LCD_DATA_CTRL = LCD_IN;
SET_LCD_EN;
status = LCD_DATA_PORT;
CLEAR_LCD_EN;
LCD_DATA_CTRL = LCD_OUT;
return status;
}
void LCDInit(void)	// init LCD
{
u16 cnt=0;
CLEAR_LCD_RS;
CLEAR_LCD_RW;
CLEAR_LCD_EN;
PCR7 = 0x30;	// Set RS+RW = Output
PCR2 = 0x01;	// Set EN = Output
LCD_DATA_CTRL = LCD_OUT;	// Set DDR to Output

LCDWriteCmd(0x38); // 8Bit-IF, 2 Lines, 5x7 character font while(--cnt);

LCDWriteCmd(0x38); // 8Bit-IF, 2 Lines, 5x7 character font while(--cnt);

LCDWriteCmd(0x38); // 8Bit-IF, 2 Lines, 5x7 character font while(--cnt);

LCDWriteCmd(0x38); // 8Bit-IF, 2 Lines, 5x7 character font while(--cnt);

//LCDWriteCmd(0x01); // Display Clear

//LCDReadStatus();

//LCDWriteCmd(0x0f); // DisplayOn, CursorOn, BlinkingOn LCDWriteCmd(0x0c); // DisplayOn, CursorOff, BlinkingOff LCDReadStatus();

LCDWriteCmd(0x06); // Enter Mode, AutoIncrement LCDReadStatus();

LCDWriteCmd(0x14); // MoveCursor right LCDReadStatus();

LCDWriteCmd(0x80); // Set DD RAM Address = 0x00 LCDReadStatus();

}

//writesomedata from 1st position in #line (0/1) void LCDWriteLine(u8 line, const u8 *data)

{

LCDWriteCmd(0x80 + line*0x40);			// select line
while (*data)
{
LCDWriteData(*data);
data++;
}
}
void Delay(void)		// "manual" delay
{
long z = 0x200000;
while(--z);
}
const u8 Text1[17]	= "	embesso		";
const u8 Text2[17]	= "	presents		";
const u8 Text3[17]	= "	HITACHI		";
const u8 Text4[17]	= " Tiny-H8/3664F			";
const u8 Text5[17]	= "LowCostEvalBoard";

Issue 0.2 Page 37 07/2002