What are your port settings, ie. Schmitt Trigger, pullups, TTL/CMOS,
etc.?

Rather than using setb and clrb, have you tried doing the setb and clrb
to a temporary register, then simply writing the value to the port?

With what information has been provided, I see no logical reason for the
behaviour you are seeing. I have used the SX for 5 years, and this type
of behaviour has not happened.

Stephen

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Jinx
Sent: Monday, February 17, 2003 2:00 AM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [SX]: Pin won't turn off properly


After 2 frustrating weeks of trying to get to the bottom of the problem
I'm no closer to solving it. And trust me, I've tried a lot of ideas. No
answer from Scenix, and I may have to bug them until they do. Hate that

Attached pic is typical of the SX behaviour - the port pins simply will
not reliably turn off when told to or, in this case, one actually turns
off prematurely. As noted before (see OP for setup) it is not related to
speed or pin terminations. General code that doesn't involve pins is no
problem at all, but unless anyone has a last flash of inspiration, it's
got the point where I may have to drop the SX in this application (and
cast a jaded eye on using them in the future)

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