I can't comment on other micro's, but all I can say is that the incidents
that I have seen with the 18f family by working here have shattered my
confidence in PIC's. Considering I'm just a student, and this is probably
all part of the learning experience, I Was always under the impression that
only software could be 'buggy'. Hardware was always stable, and worked the
way intended, every time... now that I have seen bugs introduced into
hardware themselves, it's making me think twice about everything. Maybe a
good thing, maybe a bad thing..

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Jesse Lackey
Sent: October 3, 2003 3:09 AM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [PIC]: More 18F458 Quirks


I have to say, its problems like this that make me wonder if going with
the Microchip/PIC horse was a bad idea.  You'd think that a company the
size of Microchip, producing ICs that are not leading edge by any means,
could be more thorough and simulate & silicon-test their designs better
than this?  I mean really, the 18 series has been out for how long now,
thru how many silicon revs, and such ridiculous problems.

Any opinions?  Do other microcontrollers in the 8/16bit running to 80mhz
  performance range have such problems also?

Jesse


Jai Dhar wrote:
> Hi everyone,
>
>  I have another quirk that's really horrid in the 18F458. It's a rather
> difficult problem to explain, so I will attempt my best to do so.
>
>  My boss picked up an errata note from Microchip in the 18FXX8 document
for
> Rev. B4 (Note numbers 4 and 5) that basically involved erratic code while
> crossing the 0x4000 boundary. That means any call's or goto's from the
high
> section to the low section, or vice versa, had a potential to act
> erraticaly. In response to this, he emailed Microchip, and they replied
> stating to implement this:
>

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