Re: TTL/USB converter usage question

[RVP <rvp%SDF.ORG@localhost>]

On Tue, 15 Oct 2024, Martin Neitzel wrote:

> > Not sure why it fails with the dtyU0 device.
>
> Maybe because the tests where done using "cat /dev/dtyU0"
> throughout this thread.  cat(1) itself buffers, defeating
> any "stty raw" games to unbuffer the the device.  You need
> to use "cat -u" when testing with cat(1).

I don't think `-u' matters when cat is writing to a terminal.

> (I also suggest "-v" in order to not mess up the terminal with
> control codes.)

Yes; or hexdump (but, we aren't seeing anything at all--unless the
device is sending only non-printable chars.--like NULs--which it
isn't. I also converted Ramiro's hexdump output back into binary
yesterday and blasted it to a terminal and _stuff did show up_).

-RVP