GLCD display problem

Hey, i have a KS0108 type GLCD (JXD128*64). I tried to display some image on it using the GLCD_IMAGE(****); function in the compiler Mikro C pro. My problem is the GLCD seems to work fine in simulation (proteus) but in real world condition, the image appear to get "cloned" on the both halfs of the GLCD. what might be the problem, i played with the Chip select CS, but of no use.. does the both the chip select pin has to be adjacent to each other ? please help me

What do you mean

does the both the chip select pin has to be adjacent to each other ?

Click to expand...

CS1 is for one half and CS2 is for the other... I used to get this on Toshiba displays the fnt pin doesn't seem to be simulated so 6x8 turns into 8x8 in the real world.

did ya fix it?

Yes... I just grounded the pin in real life... Point is, are your CS1 and CS2 active high or low... if you are using it the wrong way round it may well do this.

yeah, i found what the problem was.. there was some cross talk between the CS1 CS2 lines of the GLCD. cheers!

Good on you.... That's one one issue I can't stand with simulation.. The other is, clearing variables before you use them... The GLCD is a culprit for this... power up... initialize... oh look!! random characters all over the screen....Doesn't do that in simulation.

Please, read this

Manufacturers use different settings for CS1 and CS2. Check de datasheet for your display.

Years ago I was given a brand new GLCD that there was no datasheet available for. In no time, I compiled a comprehensive table of settings from different brands - Google is good.

Table in the attached file -after eliminating the .doc addition. (It helped, after an educated guess, to identify the pins in mine).

Settings and location could vary.