Hi Guys,
I need your opinion/vote about proposed changes in device files for the
timer library Albert is designing. There are a number of inconsistencies
in MPLAB for the naming of some bit fields in timer control registers.
You can read it back in the Jallib, but to summarize:
1. Rename 'T1SYNC' of T1CON to 'NT1SYNC' for the 16F72x.
Later we found also that a number 18Fs have T1SYNC, T3SYNC
which should better be NT1SYNC and NT3SYNC for consistency
even though the datasheet specifies T1SYNC (with an overscore
to indicated 'not').
2. For many (18F) PICs the T2OUTPS field of T2CON is declared as
T2OUTPS. For some PICS it is declared as TOUTPS, while the
datasheets specify T2OUTPS. Since the datasheet prevails I
proposed to correct this deviation:
rename TOUTPS to T2OUTPS for T2CON
more generally rename TOUTPS of TxCON to TxOUTPS
(for PICs with more timers).
But the midrange PICS have only one Timer with TOUTPS field
(Timer2) and the datasheets seem consistently calling it TOUTPS.
> (etc)
>
> The datasheet specifies T4OUTPS3..(etc). So it seems an error in
> MPLAB .dev files. We could normalize in two ways: * Leave out the
> timer number for all Timers (no conflict because we use the TxCON
> prefix) * Insert the number to be consistent over the whole range
> (and obey the datasheet). Personally I like the first option most,
> but "the datasheet is the boss" so I think it will become inserting
> the timer number where it is missing.
>>> * Insert the number to be consistent over the whole range (and
>>> obey the datasheet).
>
> Well, it is somewhat more complicated: - Is the number-insert also
> needed for the midrange PICs? (will apply to Timer2 only: conflict
> with the datasheet) - Is the number insert also needed for Timer2 of
> the 18Fs? (might conflict with the datasheets, but I didn't check
> all)
>
>
>> it would be nice if you can send me, after the changes, the "old"
>> WIKI file by mail, since I've created an excel sheet with some
>> analysis function to spot the differences.
>
> What is 'old'? Do you mean the one with the TMR registers?
>
> Regards, Rob.
>
--
Rob Hamerling, Vianen, NL (http://www.robh.nl/)
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