28X1 downloads 28X2 doesn't?

[BrendanP]

Im trying to download into 28X2 and 40X2 parts. I cant download nor will "check firmware version" recognize the parts.

I can pull the X2 parts out and subsitute X1 parts (28 and 40) and it works fine. So it appears the breadboards and download circuit, as least as far as X1 parts are concerned are ok.

Am running 5.2.11 with serial adapter cable with my olderish HP notebook.

(Apologies if this has been covered before, I have to get to bed, 4am start).

Any pointers anyone? I

 

[hippy]

There shouldn't be any problem, you should be able to swap between 28X2 and 28X1 and it should work equally well. Have you tried the Hard Reset procedure ? Have you checked what voltage is actually going into the download Serial In pin with a Serial Cable Test ? Have you tried with any other PC ?