IC> In a message to Jean Parrot Tom Rutherford
IC> wrote:
TR>> I never have had to change flow control. Mine is always doing
TR>> hardware flow control.
IC> Tom, we have to use that trick because Desterm 2.00 doesn't
IC> support hardware flow control. When receiveing data there is
fair enough...
IC> no problem, but when uploading a file, any character 19 will
IC> make the modem to freeze. Even Ymodem or Xmodem protocols can
IC> trigger that when they arrive to block 19. That's why we have
IC> to go to command mode and disable flow control in the modem
IC> before uploading.
sounds like a program desigh flaw... characters can be and should be
"escaped" when they are actually data and not control... i'm not sure i can
really explain it to you and this is definitely not the proper place for this
type of technical discussion but it is what must be done and it is how the
entire communications industry does it...
IC> I changed the escape character to "@" because
IC> the default, "+", was making some remote modems to also go
IC> into command mode.
shouldn't be a problem... also, please don't confuse this escape code with my
term "escaped" above... my term means to "wrap"... kinda like some programs
use \\ to send one \... the \ is the "escape character" in the comm protocol.
if @ can't be sent by itself, then \@ would be used.
darn, i think i did explain it somewhat... it's built into many protocols for
just the reason you state above...
)\/(ark
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