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Why don't work UART in interrupt mode in DM6437 using DSP/BIOS v5.41.13.42

Albert Zeman
Prodigy 140 points

I use PSP UART driver and set it in PSP_OPMODE_INTERRUPT.

Also I configure HWI_INT4:

void isrUART0()
{
PSP_DEBUG_PRINT("It's interrupt UART");
}

GIE bit set 1 and IE04 set 1, but  when I send data to UART, function isrUart() doesn't invoke.

  • 0
    Prodigy 140 points

    I resolved this problem!

    Interrupt didn't invoke, because my PC stop bit is 1, UART driver 1.5 stop bits are only supported with data character length of 5 and 2 stop bits are only

    supported with data character lengths of 6, 7, and 8 due to hardware limitation.