NHD-0420E2Z-FSW-GBW 데이터 시트보기 (PDF) - Unspecified

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NHD-0420E2Z-FSW-GBW

Character Liquid Crystal Display Module

Unspecified 

Example Initialization Program

8-bit Initialization:

/**********************************************************/

void command(char i)

{

P1 = i;

//put data on output Port

D_I =0;

//D/I=LOW : send instruction

R_W =0;

//R/W=LOW : Write

E = 1;

Delay(1);

//enable pulse width >= 300ns

E = 0;

//Clock enable: falling edge

}

/**********************************************************/

void write(char i)

{

P1 = i;

//put data on output Port

D_I =1;

//D/I=LOW : send data

R_W =0;

//R/W=LOW : Write

E = 1;

Delay(1);

//enable pulse width >= 300ns

E = 0;

//Clock enable: falling edge

}

/**********************************************************/

void init()

{

E = 0;

Delay(100);

//Wait >15 msec after power is applied

command(0x30);

//command 0x30 = Wake up

Delay(30);

//must wait 5ms, busy flag not available

command(0x30);

//command 0x30 = Wake up #2

Delay(10);

//must wait 160us, busy flag not available

command(0x30);

//command 0x30 = Wake up #3

Delay(10);

//must wait 160us, busy flag not available

command(0x38);

//Function set: 8-bit/2-line

command(0x10);

//Set cursor

command(0x0c);

//Display ON; Cursor ON

command(0x06);

//Entry mode set

}

/**********************************************************/

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