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hardware flow control on modem

 
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kevinyeandel



Joined: 11 Jun 2008
Posts: 4

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hardware flow control on modem
PostPosted: Thu Jun 12, 2008 4:47 pm     Reply with quote

Hi

How do I set hw flow control. I have:
#USE RS232(BAUD=19200,XMIT=PIN_C6,RCV=PIN_C7,PARITY=E,STOP=1)
Which matches my hyperterminal settings.

I'm using a Teltonika G10 and spent about 3 hours trying to get the settings for baud=19200 to stick after power down/up. I can see they are "apparently" saved in nvram using AT&V and AT&Y1 is supposed to make that profile the default on reset. AT+CSAS=0 used to save but it seems to forget after poweroff which is pretty hopeless.

So for a bodge I go to hyperterminal with AT+IPR=19200 and switch dsubs from my pc to my picdem 2 (not sure this is helping).

I know the thing is freezing at
ch = getc();
in my routine (I know the code works if I pretend to be the modem using hyperterminal). All I've done is printf'd "AT" and am waiting for an "OK".

So if anyone has any clues I will be very grateful.... it's all a bit depressing really!

Many thanks

Kevin
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Thu Jun 12, 2008 6:19 pm     Reply with quote

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modem flow control

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