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How increase baud-rate?

Scott51881
Prodigy 110 points

Due to no ehternet, so I transfered file by lrzsz which communite by Rs232, but dm6467 set default rate is 115200bps and it's very slow for file transfering.

Does anyone who knows how to set baud-rate and let it be highest rate 921600, thanks!

  • 0
    TI__Genius 14405 points

    I am assuming you are working under Linux. I will move this to the Linux forum. While waiting for feedback from our experts, please grep 'uart_config__initdata' (this is in board-dm646x-evm.c) and see if that takes care of it.

  • 0 in reply to Paul.Yin
    Prodigy 110 points

    Thanks, but I didn't grep to 'uart_config__initdata' in all linux kernel. I used that LSP version is 1.3, kernel version is 2.6.10.

    By the way, I've saw '#define DAVINCI_DM646X_UART_CLK        24000000' this defined, is it related to baud-rate?

    thanks!

  • 0 in reply to Scott51881
    TI__Genius 14405 points

    Do you mean that uart_config_initdata is not in 2.6.10?

    The 24MHz clock is the auxiliary oscillator clock (check datasheet and search for 24 MHz), and baudrate is a divided version of this 24MHz clock (check UART uers guide); please do not change that unless you use a different crystal. You should search for some sort of divider. Do the grep, and let me know what you find.