Problem to controll SED1335 graphic lcd with using ATmega32

[sbrathod]

sed1335 atmega32

Hi,
I am trying to control SED1335 graphic lcd controller based lcd with using ATmegas32. I have written the demo code for it in AVRStudio4 in assembly language. There should be the problem on lcd initialization, timing & controls, delays, status flag, etc. I am not getting any output on lcd panel.

Anybody has worked with this, please help me.

Best regards,
Sachin Rathod

 

[bobcat1]

atmega graphic lcd

Hi

Some graphic LCD need external clock and some negative contrast voltage

Check that you didnt miss thos signals

All the best

Bobi

 

[freakkaito]

lcd programming using atmega32

have u check the port data, port control??? u must use the same port that described on the program.
for example, if your program lcd initialization said that port data on PORT D then u should put the port data on PORT D.
most of lcd problem is about the conection between mikro and LCD. r u sure that your wiring is correct?? if u sure that your conection correct then check the lcd initialization program , try using another program.

u must sure how your lcd work, i never used SED1335 graphic lcd before, but on my case using ks0108 graphic lcd I must initialized the lcd on several step like reset high first after that send enable code then reset low and something like that.

by knowing how your lcd work u can make your lcd initialization program corectly.

good luck

 

[ganzziani]

sed1335 initialization

I use an LCD with a SED1335 driver in my MultiKitB project.
Check it out at www.gabotronics.com