On Sat, Jun 14, 2008 at 9:12 PM, Tom=E1s =D3 h=C9ilidhe <toe@lavabit.com> w=
rote:
> 1) I need a 40-pin chip, so how do I choose which one? Should I go for a
> 16F or an 18F? Is the 16F877 much use?

16F877 is really very old. 16F877A is the replacement. But the new
16F887 is much better.

> 2) I need a in-circuit debugger. Is there any debugger out there which
> will allow me to use my laptop to actually single-step through the
> microcontroller's instructions and to check the values in memory along
> the way? If so please give me its name!

PICkit 2 at US$35 is one of the best programmer/debugger and it
will work for you. It works well with 16F887.

http://www.microchip.com/pickit2

Xiaofan

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