Hi Ben,

I doubt really, that the fault was in the 1051 or 2051. It must be your programmer.

I have never detect such effects on my programmer and never received such report from anybody, which build my programmer too.
http://www.specs.de/~danni/tools/pf1051/index.htm

Only in 1 case the 1. signature byte was cleared (=00h). But this happens only during developing my programmer and there was an error in my software.

After finishing the software, this occured never again.

If the 2051 is really a "stupid 20-pin wonder", why you think, it is so popular ?


Peter