In-Reply-To: <001501bf9126$b8aa0c40$93d8c83f@pacbell.net>

> I have the entire list of changes (there are only three) at the
> http://www.piclist.com/freeicd

I wish you had said earlier.

On this page you say "R21 was listed as a 100 when I believe it should be
1K". This is wrong - it was never 1k - it was 10k. Anyway two sentences
later you explain what is happening with R21. R21 was 10k and is now 100k.
The diagram where it is shown incorrectly as 100R should show it as 100k
(because it shows R22 as 10k).


> page. Along with the reference the ETN-21 (and links to all the other
> important resources). Your FAE can also get you a copy (mine did) but it

What is an FAE ??


> really doesn't say anything other than "change these three resistors" and
> gives the steps for programming the new firmware into a '876 for the ICD
> module.

Are the steps obvious?

I examined the MPL876.HEX file and it appeared to have the required
configuration fuse values in the data:

Oscillator:     XT
Watchdog:       Enabled
PowerUpTimer:   Disabled
Code Protection:1F00-1FFF Protected
BrownOutDetect: Disabled
LowVoltProg:    Disabled
Data EE protect:Not Protected
Code flash written with EECON: Enabled

Is that all right?

Mike Harrison <mike@whitewing.co.uk> has again emailed me about the LED.
I think he is intending to mail the list but he appeared to be mailing just
me. Anyway I obviously need to explain more clearly. What I don't understand
about the LED is why it is wired the way it is with two resistors and two
pins on the PIC chip. I have already seen how it behaves in practice.

Brian Gregory.
briang@cix.compulink.co.uk