gnupic: gpsim 0.20.14 TMR1H strangeness
Subject:
gpsim 0.20.14 TMR1H strangeness
From:
James Carter ####@####.####
Date:
8 Aug 2002 17:27:46 -0000
Message-Id: <1028826427.1029.129.camel@pc004>
hi,
i'm using gpsim to simulate a pic16f627, and i'm getting strange
behaviour when trying to write to TMR1H from both my program code and
the command line.
i can write to TMR1L at all times, but i can only write to TMR1H when
the timer is enabled in T1CON:
gpsim> x T1CON
T1CON [0x10] = 0x0
gpsim> x TMR1H
TMR1H [0xf] = 0x0
gpsim> x TMR1H 0xff
gpsim> x TMR1H
TMR1H [0xf] = 0x0
gpsim> x T1CON 0x1
gpsim> x TMR1H
TMR1H [0xf] = 0x0
gpsim> x TMR1H 0xff
gpsim> x TMR1H
TMR1H [0xf] = 0xff
is this correct behaviour? the f627 datasheet does not seem to indicate
so.
thanks.
--
J.F.Carter http://www.jfc.org.uk/
