--- In Michael Schmidt <> wrote:
>
> timwen7 wrote:
> > Michael,
> >
> > The drivers are installed and I see "/dev/ttts0",etc. with 'dmseg'
> > command.
> > I found some code you provided in message 11393 (using select()) and
> > compiled it with term.c. Still no luck on /dev/ttts4.
> > I ran the same code on CPU COM2 and it works...
>
> Ok, ttts4 is the Tx/Rx pins on the COM3 port. How far is your data
> getting when you send (or receive)? You can use the portDebug
parameter
> when insmodding tsuart7800 to get various debug info from the driver,
> including when bytes are transmitted and received at the driver level.
> (Consult tsuart1.h for DEBUG_* values to pass, they are additive). If
> data is getting that far you could also monitor the pins with a logic
> probe or scope and see if the data is making it out onto the wire.
>
> Though actually now that I re-read your message since you are using
> select() it sounds like you are having trouble receiving bytes, so for
> that you would reverse the order, i.e. first look at the receive line
> when the remote is sending, then look at the debug values from the
driver.
>
> You might also check if you code works on any of the other TS-UART
ports.
>
> > Tim
>
> ______ Best Regards,
> |__ __/ Michael Schmidt
> || Software Engineer
> ||echnologic Systems (EmbeddedARM.com)
> || (480) 16610 East Laser Drive #10
> |/ 837-5200 Fountain Hills, AZ 85268
> http://oz.embeddedarm.com/~michael
>
Michael,
I finally got it working, thanks to you and Frank Fuzzoli...
We made up our own break-out cable for COM3 and got the pin numbering
wrong. Fixed that and got txmit working, but still no input.
However, using select() per your suggestion seemed to have solved that
problem!! I can now txmit & receive on tsuart ports..
Tim
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