Digole,

I noticed in the specifications for the Model: DS160120LCD-51 it states the following;

UART baud (bps): 300, 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 115200, 203400, 406800.

I can use 115200 without any problems.

But when I try to use either 203400 or 406800 it doesn't work.  Any ideas on how to make it work?

Thanks,

Some thing can cause this problem:

1) the baud rate on both sides out of matched.

2) the receiving buffer on the display overflowed.

Thank you for replying so quickly.

I went to my USART Baud Rate Calculator spread sheet and found that I have too much timing error with a baud rate of 203400.

I don't understand that particular choice of baud rate.  Let me explain;

My system, running at 18432000, works with zero percent timing error at 9600 and 115200.

Usually the baud rates I see are just multiples of another baud rate.

Example; 9600 * 12 = 115200

You use;

115200 * 1.765625 = 203400.

If you had used;

115200 * 2 = 230400,  Then my system would work at that baud rate.

Is that baud rate of 203400 attainable with other systems?

Thanks,

We may have the document wrong, try 230400.

I did try setting things up for 230400, but it didn't work either.

the maximum speed I can successfully acheive is 115200.  No higher.

Is there anyone out there that has been able to get a display working at a higher baud rate than 115200?????

Thank you again for your help

Did you send change baud rate command to display before using new baud rate? and did you change the number from 203400 to 230400?

Yes to both questions.  Just as I do for changing the baud to 115200.  The only difference is now I change everything to operate at 230400.

But the display doesn't react to any commands I send at 230400.

Thanks

probably our Chinese staff preloaded older version of FW on the module, the latest is V4.2:

http://www.digole.com/fw/

all my displays have 4.2 on them

but thanks