I'm using the DM6437 and trying to connect to my computer through the UART RS-232 interface. I have connected the P8 port with a straight-through db9 cable to a serial to USB adapter(link).
I am running the functions EVMDM6437_UART_open, EVMDM6437_UART_put_char from the loopback test sample code to try to write data out. On my computer, I have tried running teraterm and several other serial terminals, but I am not seeing any data written. I am pretty sure that the driver is set up correctly, and I have changed the settings to match the ones given to the DSP (baud rate = 9600, no parity, etc).
Is there any reason this shouldn't be working correctly? Should I be using a null modem cable instead? Do I need to attach the daughtercard to use the UART interface? Any help is appreciated!