gnupic: Re: [gnupic] Re: gpsim register question
Subject:
Re: [gnupic] Re: gpsim register question
From:
"David Barnett" ####@####.####
Date:
2 Jan 2007 14:42:27 +0000
Message-Id: <04b101c72e7b$d6219a50$0401a8c0@barnett2>
----- Original Message -----
From: "Maxim Wexler" ####@####.####
To: ####@####.####
Sent: Sunday, December 31, 2006 4:54 PM
Subject: Re: [gnupic] Re: gpsim register question
>> >Another thing: In the breadboard window only porta0 to porta5 become
>> >outputs. 6&7 remain inputs. Why, after being sent all zeros?
>> >
>> That would depend on the processor type. Some have restrictions on
>> whether certain pins can be outputs - for example, the 12C5xx range
>> allocate GPIO3 to the MCLR pin, and force it to always be an input
>> regardless of the state of TRIS.3
>
>
> Well, this is an f88 and according to the data sheet only RA5, pin 4, is
> input only.
RA6/7 are unused and not connected to any pins on the f73. Maybe gpsim's
definitions for the f88 incorrectly inherit the same trait from a common
ancestor.
David
