X-Board Invalid Display problem
Posted: Tue Jan 16, 2007 10:43 pm
I'm using an X-Board to control (hopefully) a non Matrix Orbital display.
The X-Board has PCB version R2.1
The LCD is a 20x4 that I picked up from sparkfun.
http://www.sparkfun.com/commerce/produc ... cts_id=256
The data sheet is here
http://www.sparkfun.com/datasheets/LCD/16433aoe.pdf
The model seems to be a DMC16433N from Optrex
According to the datasheet, the LCD uses the Hitachi HD44780 parallel interface.
The problem is this. When powered on with the configuration jumper in place, I simply get two rows of blocks on the 1st and 3rd lines of the LCD.
If I power it on without the config jumper, I get the word "Invalid" starting at the home position.
I know the LCD must be good and the X-Board can communicate with it in some form or another or else I wouldn't be seeing "invalid", however I am unsure of what else to try.
I have tried running through the config steps as if the blocks were not displayed, but I still get "invalid" when powering up without the config jumper.
Any info would be useful. Thanks!
The X-Board has PCB version R2.1
The LCD is a 20x4 that I picked up from sparkfun.
http://www.sparkfun.com/commerce/produc ... cts_id=256
The data sheet is here
http://www.sparkfun.com/datasheets/LCD/16433aoe.pdf
The model seems to be a DMC16433N from Optrex
According to the datasheet, the LCD uses the Hitachi HD44780 parallel interface.
The problem is this. When powered on with the configuration jumper in place, I simply get two rows of blocks on the 1st and 3rd lines of the LCD.
If I power it on without the config jumper, I get the word "Invalid" starting at the home position.
I know the LCD must be good and the X-Board can communicate with it in some form or another or else I wouldn't be seeing "invalid", however I am unsure of what else to try.
I have tried running through the config steps as if the blocks were not displayed, but I still get "invalid" when powering up without the config jumper.
Any info would be useful. Thanks!