IBM H8 user manual Lcddatactrl = Lcdin Setlcden

HTEB1

User manual

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 ADDR_A (*(volatile unsigned short *)(0xFFB0)) #define ADDR_B (*(volatile unsigned short *)(0xFFB2))

u16 Read_AD(u8 channel)

{
u8 dummy;
u16 adval;
dummy = ADCSR;	// dummy read
ADCSR = 0x00;	// reset A/D
ADCSR = (0x20 + (channel &0x01));	// start A/D, channel 0 or 1

	while (!(ADCSR & 0x80));		// wait conversion end
	if (channel & 0x01)		adval = ADDR_B;	// read A/D-value
	else adval = ADDR_A;
	return adval>>6;
}
u8	Line0[]	= " A/D#0=P1=0x	\0";
u8	Line1[]	= " A/D#1=P2=0x	\0";

// convert int to ASCII-HEX

void ShowHexValue(u16 code, u8 line)

Issue 0.2 Page 42 07/2002