--- In "PeterElliot" <> wrote:
>
> --- In "eric.robishaw" <eric@> wrote:
> >
> > Using com3 header, I can get ttts4 to RECEIVE data only, it will NOT
> > transmit, ttts5 does nothing.
> >
> > I've verified all my wiring, from end to end, so it's not a cabling issue.
> >
> > ttts4:
> > 2 ----- 2
> > 3 ----- 3
> > 5 ----- 5
> >
> > ttts5:
> > 7 ------- 7
> > 8 ------- 8
> > 5 ------- 5
> >
> > (I've also tried reversing 2/3 and 7/8, to no avail.)
> >
> >
> > using minicom, I've tried multiple baud rates.
> > I've also tried setting the com rate via setserial
> > again, no effect.
> > I've also tried simply to echo 'hello' >> /dev/ttts4, with no effect.
> >
> > ttyS0 works fine on the COM1 header, but I need to leave it open.
> >
> > Same effect booting from SD or from flash.
> >
> > Thanks
> > Eric
> >
>
> Hi Eric,
>
> Are you counting the pins on the header correctly? - TS tend to use DSUB pin
> ordering 1-5 on the side with the square pin (see mechanical drawing for
> position) and 6-9 on the other side for their COM headers.
>
> On my TS-7390 I'm having issues with data corruption, and I'm about to get
> the scope out to measure the actual baud rates being sent between the devices.
>
> Hope this helps.
>
> PJE
>
NUTS! that was it.
for the record:
7800 COM3 header is:
5 4 3 2 1
10 9 8 7 6
My breakout board was following the "normal" convention.
I should have figured... using the com port convention would allow you to use a
"standard" cable...
3 hours wasted!
Thanks
Eric
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