Matrix Orbital Corp

I recently purchased the LK162-12 and I'm having difficulty getting it to properly display text. I created a simple program in C that prints the string "Hello" every second. I have the micro connected to the LCD and a PC at the same time. I can see in a hyperterminal on the PC the "Hello" string every second with no problem, but the LCD prints garbage once every second. It typically prints "HY(lowercase i with two dots)(not-equal sign)". Both the micro and the LCD are using 19200,8N1 baud rate. I also tried 9600 baud rate, on both, with the same results.

Any help would be appreciated.

I can also provide the code, if that would help.

EDIT: I did try the uProject program and I can change brightness, send text, etc.

Hello ndyguy,

Thank you for your post.

I have the micro connected to the LCD and a PC at the same time.

Try disconnecting the PC and only have the LK162-12 connected to your Atmel.

Please let me know how it turns out.

I removed the PC cable and there is no change, its still doing the same thing.

Is you Atmel communicating at TTL or RS232 levels to the LCD?

The Atmel is TTL, but then it goes through a MAX232 which converts it to RS232. So the short answer is RS232.

I've resolved the issue. It was a slight problem with the prescale for the baud rate clock. After a slight tweak it works perfectly now. It looks like perhaps a PC is better able to account for this issue. Thanks for the help.