I had the same trouble with a cable I made up, and with the TS Y-cable. Either
I can get traffic one way (Rx IIRC), or else garbage, and the console session
get's messed up.
Oddly, when I connected the console to port 0 with the Y cable and used a
rudimentary serial read/write program on xuart0, it all seemed OK. I could send
commands and get the console output.
I was so exasperated I gave up and hooked two 752 units together on the screw
terminals (xuart 5 and 6 are easy to access) to test serial programs. I just
received a custom baseboard from our engineers today, so now I have to cross my
fingers that things will actually work when I hook up a serial instrument...
If I discover anything I'll let you know.
Jonathan
--- In "dannyd5000" <> wrote:
>
>
> Hello, I have been trying to get this working for a while now without luck.
>
> I am using the TS-7500 with the 752 (Eval Break out Board).
>
> I cut a rs232 cable in half hooked up the good end to the Eval kit DB9
> connector, and broke out the wires according the the 752 DB9 diagram. I
> ringed out all the pins so I am positive I mapped the wire to the proper pins.
>
> My goal is to do the following
>
> *break out serial console (pins 2,3,5) to another serial cable so i can get
> the console on my PC (SUCCESSFUL)
>
> *Break out the XUART0TX and XUART0RX (Pins 7 and 8) to a TTL/RS232 converter
> and read and write to a serial device on the other end(FAILING)
>
> For sanity sake, Is there anyone else out there using the 7500 with the 752
> and also using the XUART0 with console? Also are you using it with a
> TTL/Rs232 converter?
>
>
> When I open the XUART0 and write to it I am able to see garbage get written
> out. I used the settings in the xuart wiki example, with many many other
> variations. I am using Hyperterm on the other end for testing.
>
> here are my termios settings
> system("xuartctl --port 0 --speed 9600 --server");
> newtio.c_cflag = CRTSCTS | CS8 | CLOCAL | CREAD | B9600;
> newtio.c_iflag = IGNPAR;
> newtio.c_oflag = 0;
>
> /* set input mode (non-canonical, no echo,...) */
> newtio.c_lflag = 0;
>
> Thanks in advance...
>
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