Solved - Build Issue - Unknown Keyword in #FUSES "NOCOE

Adam.Smith.Vis · Joined: 03 May 2023 Posts: 5

Hello,

So this may be impossible to solve with the information I can give you...

But any help getting closer to the issue would be greatly appreciated.

So I am a new engineer 6 months into my first job. Im now looking into changing my companies existing code to fix a few issues.

I have the source code and hex files for each past code revision. I do not have the compiler version, device file versions used or anything additional bar the .c and .h files.

I know they were using the PCW IDE.

The device I am programming for is the dsPIC33FJ256MC710 and I am currently using the CCS compiler demo till we get the full license.

So I of course know that the code itself should work as it has already been compiled and being used since the latest revision in 2019.

When I build the project I am getting these 2 errors:

Unknown Keyword in #FUSES "NOCOE"
Unknown Keyword in #FUSES "TEMP"

This is for the following section in the header file:

jeremiah · Joined: 20 Jul 2010 Posts: 1354

I haven't installed the latest version, I'm running 5.105 and it doesn't have support for those fuses. If the most recent version is the same, then it is probably an oversight.

I would recommend giving them a call and telling their tech support about it. They can probably give you a fixed version with support for those fuses.

If you don't want to wait, the compiler does let you manually set all fuses using the format:

dyeatman · Joined: 06 Sep 2003 Posts: 1934 Location: Norman, OK

It appears MChip and CCS dropped these fuses a while back. The datasheet
references the COE fuse but is is no longer shown in the FICD register and I
can find no reference to the TEMP fuse.

Regardless, from what I can tell, neither one of those fuses should have any
effect on comms related operations anyway so I suspect something is else is
going on.
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Adam.Smith.Vis · Joined: 03 May 2023 Posts: 5

Thanks for your comments!

Having read through the rest of the code I can't see any use of these fuses either.

I'll leave them commented out and continue investigating for other issues.

Best of luck with your own projects

Ttelmah · Joined: 11 Mar 2010 Posts: 19539

Those fuses were removed from the data sheet in about 2009. The
old CCS compilers had them removed in the late V4 days. About 4.107
was the last supporting them. So 2010ish. If your code has these in, then
it is very old, so might well be affected by some of the compiler changes
since. There were some small alterations to how things are handled and
behave when V5 was launched.
Sounds as if they may have been using a very old compiler, though the
last changes were 2019....

Adam.Smith.Vis · Joined: 03 May 2023 Posts: 5

Thanks Ttelmah,

Very Old code sounds about right!

Ill keep trying and bear in mind about the changes.

Adam.Smith.Vis · Joined: 03 May 2023 Posts: 5

I found an old version of PCWHD (March 2008) and got that running.

I have been able to compile with changes of my own and it is working on our hardware.

Again thanks for everything you are all a massive help!

Ttelmah · Joined: 11 Mar 2010 Posts: 19539

Well done.

Worth saying that on my own code, I always 'note' at the top, 'what compiler'
is used, and store a copy of this with the sources. Might well be worth
considering something similar. This way you can come back and make
changes, and know where you are working 'from'. Very Happy

Adam.Smith.Vis · Joined: 03 May 2023 Posts: 5

That's a good tip!

Ill make sure to do that