PIC18F2620 Support: anyone gotten it to work?

object01 · Joined: 13 May 2004 Posts: 90 Location: Nashville, TN

I've taken a stab at using chipedit.exe to define a PIC18F2620 (based on the PIC18F2320 settings), and created a .h file for it, and when I program it almost all bytes come back as FF during the verification process.

I've never tried specifying a non-CCS-supported chip in this manner. I can't tell if the problem is a hardware problem or a settings problem. Can anyone here offer any advice?

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Jeff S.

rnielsen · Joined: 23 Sep 2003 Posts: 852 Location: Utah

Does your programmer support it?

object01 · Joined: 13 May 2004 Posts: 90 Location: Nashville, TN

We use an ICD-U40, which is supposed to support the PIC18 family.

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Jeff S.

Haplo · Joined: 06 Sep 2003 Posts: 659 Location: Sydney, Australia

PIC18F2620 is not on this list:

http://www.ccsinfo.com/icddevices.shtml

object01 · Joined: 13 May 2004 Posts: 90 Location: Nashville, TN

It's not on the list because the chip was released last Friday. We need to use the device editor and create the necessary header files to make PCWH compatible with it.

The PIC18F2620 has an almost identical feature profile to the PIC18F2320 -- only more RAM and ROM have been added, as far as we can tell. Based on this, and assuming there are no radical architecture differences, we are hoping to pick the lock and come up with a solution.

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Jeff S.