Hello,
I have a 631 LCD USB connected to a 2.6 fedora linux machine and works fine. I use it from a program I wrote and I can display characters, read keypresses, enable key legends, clear the screen.... everything but set the boot state.
The documentation says that I should send to the lcd a 4 command with 0 as data length, but it does nothing.
What I do is:
-Open the port
-Display a message in the LCD (that is shown correctly) using command 31.
-Send the 4 command with data lengh 0 to store that message as boot message.
When I reboot, the LCD still shows the Crystalfontz message.
Am I doing anything wrong?
I have a 631 LCD USB connected to a 2.6 fedora linux machine and works fine. I use it from a program I wrote and I can display characters, read keypresses, enable key legends, clear the screen.... everything but set the boot state.
The documentation says that I should send to the lcd a 4 command with 0 as data length, but it does nothing.
What I do is:
-Open the port
-Display a message in the LCD (that is shown correctly) using command 31.
-Send the 4 command with data lengh 0 to store that message as boot message.
When I reboot, the LCD still shows the Crystalfontz message.
Am I doing anything wrong?
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