PIC18F4550 and 128x64 GLCD Blank w/ Pictures

[secretagent]

Hello everyone! I have a GLCD here and for some reason it doesnt work. It doesnt turn any pixels on no matter what I do... Does anyone know whats going on????

View attachment 62520
View attachment 62521
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View attachment 62523

CODE:

#include <PIC18f4550.h>
#include <delays.h>
#pragma config  PLLDIV = 12, CPUDIV = OSC1_PLL2, USBDIV = 2, FOSC = HS, FCMEN = OFF, IESO = OFF
#pragma config  PWRT = ON,  BOR = OFF, VREGEN = ON, WDT = OFF, PBADEN = OFF,  LPT1OSC = OFF,  MCLRE = OFF
#pragma config  STVREN = OFF,  LVP = OFF, DEBUG = OFF
#define E RB5
#define RS RB4
#define RIGHTLCD RB0
#define LEFTLCD RB1
#define LCDRESET RB2
#define RW RB3


void STROBE()
	{
		E=1;
		Delay10KTCYx(10);
		E=0;
	}

void LCDinit()
	{
		RW=0;
		RS=0;
		E=0;
		LCDRESET=0;
		LCDRESET=1;
		RS=0;
		LEFTLCD=1;
		PORTD=0x3F;
		STROBE();
		LEFTLCD=0;
		RIGHTLCD=1;
		PORTD=0x3F;
		STROBE();
		RIGHTLCD=0;
		LEFTLCD=0;
	}

void PICinit()
	{
		CMCON=0x07;
		ADCON1=0x0F;
		PORTA=0;
		PORTB=0;
		PORTC=0;
		PORTD=0;
		TRISA=0;
		TRISB=0;
		TRISC=0;
		TRISE=0;
		TRISD=0;
	}

void main()
	{
		PICinit();
		LCDinit();
		RS=1;
		PORTD=0x0F;
		LEFTLCD=1;
		STROBE();
		PORTD=0xF0;
		LEFTLCD=1;
		STROBE();
		RS=0;
		LEFTLCD=0;
		while(1);
	}

Things used:
PIC18F4550 //uC
NHD-12864MZ-FSW-GBW-L //GLCD

Pinout of GLCDON RIGHT)


View attachment 62524

Thankyou so much everyone this is a really cool thing and would be so happy if one of you could figure out what im doing wrong here. (The RESET LCD is supposed to be HIGH according to newhaven employeys.... And I did use the example code from the datasheet (https://www.electro-tech-online.com/custompdfs/2012/03/NHD-12864MZ-FSW-GBW-L.pdf) before and still doesnt work... All my connections are good and sturdy no shorts or anything... contrast is hooked right but i think thats whats wrong)

When I read off of the LCD it says display is not on .......


Thanks so much!!!!!

 

[secretagent]

I see no one has replied to the thread. To help out fellow searchers, The problem was the GLCD had no built in chargepump for the contrast...

https://www.electro-tech-online.com/custompdfs/2012/08/neg-invr.pdf

Refer to the schematic on the first page, I removed the 22uF Because I didn't have the right one...

Thankyou guys

 

[picbits]

Thanks for getting back with the solution - this has bit me on the butt before with LCD modules.

Often people solve the problem and don't report back.