GLK24064-25 baudrate commands don't seem to work

dodge55 · Post by **dodge55** » Sun Jan 14, 2007 6:22 pm

I am using the I am using the GLK24064-25 as a RS232 display. as a RS232 display. I have been using it for a couple of months. However, I can't seem to get the baudrate commands to work at all. I can draw graphics, text, everything else, but it seems not to respond to the change of baud rate. Both the standard and non-standard baud rate commands are ignored. I need to downscale the display so that a 14400 modem can communicate to it.

Anybody had any problems with this? Is there any way to verify a baud rate change? I am issuing a FE 39 CF command just like I do with any other command. It doesn't work. The FE A4 with 2 byte speed doesn't work either. Can someone verify that these work on another display? Thanks.

Sutton

Raquel · Post by **Raquel** » Tue Jan 16, 2007 5:00 pm

Hello Sutton,

Thank you for your post.

Can you please tell me the PCB rev of your GLK24064-25? It should be printed on the PCB.

"I am issuing a FE 39 CF command just like I do with any other command." - this command changes the baud rate to 9600. Please try FE 39 8A.

"The FE A4 with 2 byte speed doesn't work either." - can you tell me the two bytes you send?

When doing baud rate changes, please make sure the you do not have the manual override jump on.

Thanks,

dodge55 · Post by **dodge55** » Wed Jan 17, 2007 9:57 am

Problem fixed.

If you don't wait 10ms after issuing a baud rate change command, the uart doesn't accept the baud rate change. Jon is noting that for the next manual release. Actually, the data I have is 3+ ms delays seem to work, but I put 10ms in case of fluctuation.

Sutton