ICD2

[saran1]

We worked with ICD2 and programmed it for 18F4550 and it worked fine,
now we altered new pcb with the same design , but its not working, pic revisiontest has been passed sucessfully , but while verifying program memory , the following occurs
[ICD0161: Verify failed (MemType = Program, Address = 0x4, Expected Val = 0xFFFF, Val Read = 0xFFF0)
]
can anyone help
Thanks in advance[/quote]

[Andreas]

Hello,

Most common problem is the reset circuit !

I had this problem in the past very often and changing the reset resistor to the value CCS suggest is working almost everytime, I think its 47k.

If You have an ICD U40 You can start the debugging session and inspect the signals to the the target pin by pin.

Dont worry such things happens all the time

best regards

Andreas

[saran2]

Ya , its just a problem of MCLR
Thank u