Bruce thanks for the tips.

I used the same configuration but with F628 chip (in smd case) with no ICSP problems.

Then I swiched to F819 and ... presto! No programming!

There is no other difference in the circuit. Also try it with seperate power. No luck.

The problem is that the chip (F819) is no recognised by the programmer. The Chip ID is read wrong. If I remember 0EEDh was expected and 04EDh was read or something.

Ioannis