IBM H8 user manual Setlcdrw Lcddatactrl = Lcdin Setlcden

HTEB1

User manual

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)	// inits the 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

//required 3 times pls. ref. data sheet 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(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, u8 *data)

{

LCDWriteCmd(0x80 + line*0x40);			// select line
while (*data)
{
LCDWriteData(*data);
data++;
}
}
#define cKEYCLK		0x40		// P16 (IRQ_2)
#define cKEYDATA	0x80		// P17
#define cKeyBufSize 16			// input keycode buffsize
u16 KeyCodeBuf[cKeyBufSize];		// input code buffer
u8 keyWriteIndex,keyReadIndex;			// buffer write/read index
u16 outval;
u8 outact;
// check for odd parity and stopbit
u8 OddParStopCheck(u16 data)
{
u8 pcnt=0;
u16 mask=0x0080;
if (!(data & 0x0200)) return FALSE;				// check for stopbit
while (mask)
{

Issue 0.2 Page 45 07/2002