PIC12F675 wrong #FUSES

[barryg]

I found in the archives, that others have bumped into this.

Firstly, using MPLAB and ICD2, I tried to put the PIC12F675 into debug mode, but it's not possible.

Then, I got complaints from MPLAB that not having an external MCLR was going to be a problem. Thing is, MCLR is external and the #FUSES line said so. So I changed the config setting manually in MPLAB, and programmed it OK. But after every compile, I had to go change it again.

So, I went to find out why...and discovered right off that the line "DEVICE ICD=TRUE" was the problem here. Seems it causes the compiler to try to set some config bits that it should leave alone, and it had the effect of changing the MCLR bit as well as the power-up timer. Deleting this fixed that problem

So, I think a note to CCS may be in order. Trying to do what I did should throw an error, rather than messing up the config.

And maybe one to Microchip, since MPLAB's "top ten reasons you can't debug" doesn't seem to mention that maybe your device can't handle it!

For what it's worth.

[PCM programmer]

Are you using the special "-ICD" header that's required for the 12F675 ?
See this thread and the links in it:
http://www.ccsinfo.com/forum/viewtopic.php?+t=28294

[barryg]

No, I'm not. It's just the ordinary part. So I had to solve it the old fashioned way, by thinking

Seems to me from its behavior, that the -ICD is a different part, not just a bonding option. So the compiler ought to differentiate between the the two.