Olimex MSP430-4619LCD board screen problem

Development Boards MicroMod
1

Hi. I’ve just got MSP430-4619LCD evaluation board which was pre-programmed with the demo software which worked fine.

When I tried to upload the demo code for this board from the web site the screen did’t work. The backlight is on, but no picture at all. I traced the program in step by step mode - the joystick works, so the program is uploaded. There is something with the screen initialization maybe.

Could anybody help me how to make the screen work properly or maybe you have a simple code just for the screen itself?

I would greatly appreciate any help.

Thanks.

2

Ok, the answer is “RTFM” as usual.

It was necessary to comment the display definition in LCD.h

//#define GE12

Everything works fine now.

But if anybody has some simple code examples for this display I would greatly appreciate if you share those.

3

Hai jee,

Try this one,

#include <msp430x14x.h>

#include<stdio.h>

#define CR 0x0D

#define LF 0x0A

#define MAXSIZE 100

#define FIRSTLINE 0x93

#define SECONDLINE 0xCF

#define THIRDLINE 0x94

#define FOURTHLINE 0xD4

void LcdWriteChar(unsigned char dval) ;

void LcdWriteCmd(unsigned char cmd);

void LcdInit(void);

void LcdClear(void);

void delay(unsigned long int count);

void LcdWritedata(unsigned char LCDdata, unsigned int LCDcount) ;

void TimerFunc(unsigned int TIMERCOUNT);

unsigned int I,J,M,check1;

unsigned long int k;

unsigned int TIMERINTERVALCOUNT;

unsigned char dval;

unsigned char data1="CONGRATULATIONS ";//20

unsigned char data2=“SUCCESS…”;//7

void main()

{

WDTCTL = WDTPW + WDTHOLD; // Stop Watch Dog Timer

BCSCTL1 &= ~XT2OFF; // XT2on-8MHz

do

{

IFG1 &= ~OFIFG; // Clear OSCFault flag

for (I = 0xFF; I > 0; I–); // Time for flag to set

}

while ((IFG1 & OFIFG)); // OSCFault flag still set?

BCSCTL2 |= SELM_2 + SELS; // MCLK = SMCLK = XT2 (safe)-8MHz

CCR0 = 0x7FFF;

TACTL = TASSEL_1 + TACLR +MC_2; // SMCLK, contmode

P4SEL = 0x00; // Select P4 port as I/O

P4DIR = 0xFF; // Set P4 port to Output direction

P5SEL = 0x00; // Select P5 port as I/O

P5DIR = 0xFF; // Set P5 port to Output direction

P6SEL = 0x00; // Select P6 port as I/O

P6DIR = 0xFF; // Set P6 port to Output direction

for(;:wink:

{

LcdInit(); //initialize LCD

LcdClear(); //Clear LCD

LcdWriteCmd(FIRSTLINE);

LcdWritedata(data1,18);

// for(;:wink:

// {

// LcdInit();

LcdWriteCmd(SECONDLINE);

LcdWritedata(data2,12);

/* // for(;:wink:

//{

P6OUT=0x08; //for d3

k =500000;

do (k–);

while (k != 0);

P6OUT=0x04;//d2 on

k = 500000;

do (k–);

while (k != 0);

P6OUT=0x02;//d1 on

k = 500000;

do (k–);

while (k != 0);

}*/

}

}

void LcdWriteChar(unsigned char dval)

{

P5OUT = 0x06; // LCD_RW = 0; //LCD_RS = 1; //LCD_E = 1;

P4OUT = dval;

P5OUT = 0x02; // LCD_E = 0;

delay(180000);

} // LcdWriteChar

void LcdWriteCmd(unsigned char cmd)

{

P5OUT = 0x04; // LCD_RW = 0; // LCD_RS = 0; // LCD_E = 1;

P4OUT = cmd;

P5OUT = 0x00; //LCD_E = 0;

delay(180000) ; // Delay

} // LcdWriteCmd

void LcdInit()

{

P5OUT = 0x00; // LCD_RW = 0; // LCD_RS = 0; // LCD_E = 0;

LcdWriteCmd(0x3C); // LCD Function Set

LcdWriteCmd(0x3C); // LCD Function Set

LcdWriteCmd(0x3C); // LCD Function Set

LcdWriteCmd(0x0C); // display off, cursor off, no blini

LcdWriteCmd(0x01); // Clear Display

LcdWriteCmd(0x0F); // display on, cursor on,cursor blini on

LcdWriteCmd(0x07);

LcdWriteCmd(0x3F); // Entry mode- Cursor Direction

} // LcdInit

void LcdClear()

{

LcdWriteCmd(0x01); //(LCD_CLEAR);

}

void LcdWritedata(unsigned char LCDdata, unsigned int LCDcount)

{

for(check1=0;check1 < LCDcount;check1++)

LcdWriteChar(LCDdata[check1]) ; // Write data to LCD

} // LcdClear

#pragma vector=TIMERA0_VECTOR

__interrupt void Timer_A (void)

{

CCR0 += 0x7FFF; //for 1sec // 0x1F40 for 1ms// // Add Offset to CCR0

TIMERINTERVALCOUNT–;

if(TIMERINTERVALCOUNT==0)

CCTL0 &= ~CCIE;

}

void delay(unsigned long int count)

{

do (count–);

while (count != 0);

} // Time delay