RE: [avr-chat] Flow control with Butterfly

[Ben Mann]

Hi Pertti,

Glad that this solution works for you.

I found I also suffered this exact behaviour with my USB-to-serial adapter,
while the PC's onboard UART didn't suffer it. That is, the USB device would
lose characters from its transmit queue if inter-character spacing wasn't
used.

In the end the behaviour was proven by transmitting from the USB uart to the
motherboard UART via null-modem cable (ie, leaving my embedded application
out of it).  It didn't have the problem in reverse though - the USB bridge
could receive at full speed, it just couldn't transmit.

I suppose is just goes to show that we're not always having to debug our own
embedded applications...

Ben Mann


-----Original Message-----

18. maalis 2005 kello 18:06, Hugo González Monteverde wrote:
>  See that python has less than second sleep. Why not try:
>
> >     for c in "command\r":
> >         ser.write(c)
>           time.sleep(0.01)

Yes, I tried it and it works. Since there is relatively
little data going from the PC to the Butterfly, that is
how it is probably going to remain as well ;-)
-- 
Pertti