> I don't know about 'normal', but it's seems to be what usually happens.
> To overcome the problem I eventually managed to implement the 'bulk
> erase' feature - although the details in the app note don't work. If the
> required code (in Pascal/Delphi) is of any help, let me know privately.

If you can tell me what's wrong in the uChip documentation of the 'erase
data' - it does not seem to work for me!
Or just send the relevant code fragments - i've never read Delphi but I
think I can manage (I use TurboPascal).
The other solution I consider is to set the protection first and then
erase.
A bit strange, but it seems to work (that is: to rease code+conf+data)

regards,
Wouter.