i.MX27 ADS Baud rate

[Birchy]

I just starting to play with a MX27 ADS and I see that the default UART speed is 256K, which my older PC does not support.

Does anyone know if it can be brought up at a slower speed because I can't do anything with it.

Also, is there someone that has documentation on this board other than the user manual?

Thanks very much,

  JB

[YanjunLuo]

Your current question is about Linux programming, please read some book, like Advanced Programming in the UNIX Environment.

Richard Stevens, ten years already.

Regards,

Yanjun Luo.

[Birchy]

It's the bootROM startup that I'm having a problem with.

I got the board to boot up to Linux with 115200 baud on the serial port.

Now I have to figure out how to edit, compile and run a program on the thing.

Any suggestions?  Is there any documentation out there?

Thanks,

  John

[YanjunLuo]

If you really want to test more than 115200, you can find one USB to serial port cable, some of them support very high speed baudrate.

I think maybe your board has some problem, you can set the DIP switch and boot from internal bootrom, then connect with ADS ToolsKit to recover the board.

Regards,

Yanjun Luo.

[YanjunLuo]

Are you sure? I think MX27ADS use 115200.

[Birchy]

I tried pretty much all speeds up to 115200 N81 and got nothing.

The user manual states - 

Table 2-8. S16 UART Enable Switches function

S16-3, UARTA_MBAUD
ON UARTA baud rate limits to 250Kbps; default
factory setting.
OFF UARTA baud rate limits to 1Mbps.
S16-4, UARTB_EN