MityDSP L138, using UART1 from the DSP

Added by Vibhakar Vemulapati almost 3 years ago


I am trying to communicate using the UART1 from the DSP directly. Currently the ARM core uses the UART1, and I don't have access to the other UART pins. Is there a procedure that I need to follow to shutdown the UART on the ARM, so that the DSP is free to use it? Or can I directly configure the UART from the DSP and use it?

Any help would be appreciated!

Replies (1)

RE: MityDSP L138, using UART1 from the DSP - Added by Jonathan Cormier almost 3 years ago

You can probably modify the enabled_uarts line in the board-mityomapl138.c file to not initialize UART1.


static struct davinci_uart_config mityomapl138_uart_config __initdata = {
    .enabled_uarts = 0x7,

Might also need to modify the console= bootargs so it doesn't use Uart1.

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