Migrating from Pic CAN to ECAN

Hi,

I'm supposed to be moving our boards from the PIC18F458 to the
PIC18F4580, which has the ECAN on it. At the moment, I'm not having a
great deal of joy... Has anyone else managed a migration from an Fxx8 to
an Fxx80 pic?

cheers, Rich.


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rich walker         |  Shadow Robot Company | rw@shadow.org.uk
technical director     251 Liverpool Road   |
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In article <m3bqvhnlbw.fsf@shadow.org.uk>, Rich Walker
<rw@shadow.org.uk> writes
>I'm supposed to be moving our boards from the PIC18F458 to the
>PIC18F4580, which has the ECAN on it. At the moment, I'm not having a
>great deal of joy... Has anyone else managed a migration from an Fxx8 to
>an Fxx80 pic?

If you use legacy mode 0 on the 4580 then there's very little you should
need to do to continue using the 458 code as is. You will need to check
the errata for each part though - I seem to recall one or two minor
tweaks needed to accommodate the errata differences between a similar
pair of chips (e.g. there's an unintended inversion of SEG2PHTS on some
chips).