10mhz yes, 20mhz no...

[dragons_fire]

shouldnt the delay for the lcd not matter?? since it works fine at 10mhz, is should be the same at 20, shouldnt it???

can someone please elaborate on the command_us and data_us? i have never used these before, and i looked through the book a bit, and couldnt find anything. i also searched on here, and couldnt find enough info on it..

[skimask]

shouldnt the delay for the lcd not matter?? since it works fine at 10mhz, is should be the same at 20, shouldnt it???

can someone please elaborate on the command_us and data_us? i have never used these before, and i looked through the book a bit, and couldnt find anything. i also searched on here, and couldnt find enough info on it..

I used the wrong syntax.
It's lcd_commandus and lcd_dataus. It's in the green manual.

[paul borgmeier]

The LCD commands just noted won't help because he is using a serial lcd with serout2, not the LCDOUT command. I don't have an answer, just hoping to save him time debugging.

[skimask]

The LCD commands just noted won't help because he is using a serial lcd with serout2, not the LCDOUT command. I don't have an answer, just hoping to save him time debugging.

Hey...good point...DOH!

You running 20mhz and SEROUT2 with a baud of 32. I'm thinking maybe the difference between say 31, 32, and 33, might be the ticket. Maybe your baud rate is off as a result of your crystal being off a bit.
Try 31 and 33 and see what happens.

Does the LED on D.0 respond properly? What does the LCD do? Do you have the Power-Up-Timeout enabled?

[paul borgmeier]

I used the wrong syntax.
It's lcd_commandus and lcd_dataus. It's in the green manual.

thinking along these lines ... there is an optional "pace" setting you can make to slow down the presentation of bytes from serout2. You might want to play with that as well. The "pace" setting also is in the green manual(under serout2)

[skimask]

I wonder if maybe the 20mhz crystal is oscillating at 20mhz...might be drawn off on a harmonic or something along those lines. I know I've had a bit of a rough time with crystals once I get above about 10mhz, especially on the solder-less-breadboards. Usually nothing that a cap value change couldn't fix (i.e. 15pf -> 33pf or the other way), but once in awhile, I'd just get a crystal that wouldn't work in the application. Swap it out with another one, works great...etc...
Just more stuff for you to look at I suppose...