Actually, My main priority with the PICKit 1 is to study some experiments.
First the USB HID class communication. It appears to me that the descriptors
used in PICKit 1 is very much differ from Microchip and Jan Axelson's
example. Now it's emulation proceeded suscessfully. MPLAB then can connect
to it and I had suscessfully 'write' something to PIC12F675.

The next thing is the PID and voltage control. Well again an interesting
subject to study. Until now I see that there are a lot of experiments
awating me. I can't do it now but until the end of next week, perhaps I will
have a chance to do something then. As the moment, it seems to me that some
tuning can be done to the PID multiplier factor (forget the symbol used here
without any reference in hand, I think something like Kp, Ki, Kd etc).

I think then 'reverse engineering' the PICKit 2 is not a priority for me. At
least the efforts required could be much more than to study/implement one
yourself. This is especially true as many resources are available for PICKit
1.

I will stick with PICKit 1 at the moment.

Best regards,
WH Tan

-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf
Of Chen Xiao Fan
Sent: 14 July 2005 16:03
To: 'Microcontroller discussion list - Public.'
Subject: RE: [PIC] PICKIT 2 (was PICKit1 & PIC18F2550)


Yes it looks rather like a tool. But you can always open it and
throw away the case. :) Since the schematic is open, one can easily
build the PICkit 2 as well. Even without the schematic, it is
rather easy to reproduce the hardware since it is not so
complicated as ICD2 (lots of clone on the Web).

The "case" of the firmware is much more difficult to throw
away. :) I do not think one would like to reverse engineering
the firmware. But maybe the protocol can be reverse engineered.
LPLAB is doing that (to reverse engineering the ICD2 protocol).

Regards,
Xiaofan

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist