Wouter van Ooijen wrote:
> But something else: As I understand you can read a (code?) checksum
> froms a PIC, even when it is read-protected.

I have never heard of that.  Some implementations may write a checksum to
the user ID locations, which can be read with code protection enabled, but
that wouldn't be checking anything except those locations.

> Alternatively, are there programmers that read the code space but
> calculate a checksum locally and send that to the PC?

I don't know, mine don't.  My host software receives a dump of the whole
target PIC memory via the programmer, then compares all bits to their
desired value according to the HEX file.


******************************************************************
Embed Inc, Littleton Massachusetts, (978) 742-9014.  #1 PIC
consultant in 2004 program year.  http://www.embedinc.com/products
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist