SPORT.BAS
7 messages in this thread
I'VE GOTTEN SPORT.BAS TO TALK THRU THE NULL MODEM VERY WELL. IT WORKS WELL
WITH THIS MACHINE, BUT THERE IS THIS ONE SMALL PROBLEM. PIN 20 ON THE RS232
IS NOT BEING ASSERTED AS IT OUGHT. WHEN I LOOK AT THE FRONT PANEL DISPLAY OF
MY HAYES, I SEE THE MR LIGHT ON, BUT THE TR LITE DOES NOT GO ON FOR MY AMIGA.
THUS, WHEN I TALK TO THE HAYES, IT ECHOES OK, BUT IT REFUSES TO RESPOND TO
MY "AT" COMMANDS. SO, OH HARDWARE GURUS, WHAT IS THE POKE TO COERCE THE CIA
INTO ASSERTING PIN 20. IT SHOULDN'T BE HARD TO GET THE CIA TO ASSERT ITSELF.
SDP
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You should have to do any special poke to get the CIA into asserting pin 20.
what you could do instead is flip switch one (1) down on your Hayes modem. The
switches can be found behind the plastic cover on the front of the modem.
Darrell Grainger
*** There are replies:
42142, 42164
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Opps, i do that all the time. My last message should have started with 'You
should not' rather than 'You should'.
Darrell Grainger
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WELL, THEN WHY DOES MY CPM MACHINE GO TO THE TRUBBLE OF ASSERTING THAT PIN
RIGHT AFTER I BOOT UP EVERY TIME? AND SO DOES MEX. I JUST WANT TO MAKE THE
TWO MACHINES IDENTICAL TO THE HAYES MODEM. THAT WAY I DON'T HAVE TO TOGGLE
THE SWITCH WHEN I ALTERNATE BETWEEN MACHINES. HOWEVER, THANX MUCH FOR
THE HINT. COULDN'T FIND MY HAYES MANUAL AT 4AM LAST NITE.
SDP
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I can see no reason why the modem has to know if the terminal programs is truly
ready and that is all switch one (1) does.
What do you mean by your CP/M machine asserting the pin right after boot up?
Darrell
right now, i hang up the phone by dropping dtr. i've had some problem with
getting the hayes to hang up since i've flipped the switch. my bios has
a handler for the RDR and PUN device which happens to be the serial port
connected to my hayes. when I boot, i see the TR light come on just about
the same time as when my CONsole is initialized. fact, that's how I know
when to start filling up the typeahead buffer. so Coldboot is initializing
serial ports when it starts up, and thus pin 20 gets asserted. I just want
to make the two machines look identical to the hayes.
sdp
Set DIP switch 1 DOWN on the Hayes is a quick fix.
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