On Thu, Sep 22, 2022 at 5:32 PM B 9 <[email protected]> wrote:

>
> Of particular note for troubleshooting is that, if some of the data gets
> transferred, but it is garbled or you get a ?DS ERROR, then the problem
> is that your PC's serial port does not support "ON CHIP SOFTWARE FLOW
> CONTROL".  One solution is to buy a serial card or USB cable with an FTDI
> chip in it. (Other companies make ICs that support on chip software flow
> control, I even have a cheap Prolific 2303 device that does, but FTDI is
> the only company I know of whose chips are supposed to always work. )
>
>
I've never heard of this on-chip software flow control.All I knew was that
software flow does not work under Linux. My experience is software flow
control with a Model T *does* work on Windows.

Is that something you have to enable? Seems awfully strange to have the
chip interceding in-band. Automatic hardware flow control I have heard of.

This failure on Linux is why I made HTERM to use hardware flow control

If there's a consistent way to make it work on Linux, it would be good to
know. Even just with FTDI chipset. Windows prolific drivers are trash. I
don't know about Prolific on Linux.

Is the stty command you put supposed to enable on-chip software flow
control? Which part?

*s**tty -F /dev/ttyUSB0 ixon ixoff  stop ^S start ^Q  -onlcr -icrnl  eof ^Z
 19200*

-- John.

>

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