Your voltage is okay ? Any evil transients that blow it to bits ?
No static electricity that kills it ? Could be while handling it, or maybe
when connecting serialcable for bootloader ?
I have programmed the same 877 like 50 times and np so far.
(Picstart plus)
/PJ

----- Original Message -----
From: "Ian Holbrough"
> Initially all starts off well and I can reliably blow quite significant
> programs on fresh silicon (typically 256 - 512 words in length located both
> at the low and high end of the memory map).  As I develop these programs
> (including a butchered version of the Microchip bootloader) I find that my
> chips start ailing.

> Typically I have been having these problems after 10 - 20 successful cycles.
> I recently got my bootloader working and I was therefore hoping that all
> these problems were behind me but after somewhere around 50 cycles my
> bootloading IC exhibited the same problem.  (I tried reprogramming the
> bootloader but to no avail)

> Any ideas on what I am doing wrong?

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