CCS Ver 3.249 and PIC 18F2523

[Inkwaterman]

Hi !

I have an old CCS compiler version (3.249) and I need to compile a code for a PIC 18F2523, but in the list of supported PIC this model there isn't.

Is it possibile use this version of compiler or I have to upgrade ?

If it's possibile how I can do it ?

thanks

[PCM programmer]

If you have the full CCS IDE (PCWH), then you could use the Device
Editor to create an entry for the 18F2523. You could make a copy
of a PIC that is very similar to that one and rename it to 18F2523.
Then edit the new database entry to incorporate the features of the
18F2523. I looked at the PICs on Microchip's website and it looks
like the 18F2510 would be a good choice to use as a base for the new
entry. It's very similar to the 18F2523 and it exists in PCH vs. 3.249.

I don't have the full IDE, so I can't help you to use the Device Editor.

-----

Actually, maybe I do have it. I started up the CCS PCWH demo
(vs. 4.032d) and it does have the Device Editor in it. There may be
some difference between this version and 3.249, but I was easily able
to make a copy of the 18F2510 entry and save it as a new entry for
the 18F2523.

[Guest]

hi

I'd like to use this chip 18F2523 with 3.249, also.

Would you copy the header file 18F2510.h and rename it 18F2523.h and then edit it for 2523?

Thanks

[Ttelmah]

The 'header file', has little to do with allowing support for a chip. Changing entries in it, will do little, except stop code from working....
Key is that compiler uses a '.dat' file, to contain the details of peripherals, memory configuration, fuses etc., for a chip. The device editor in the windows vrsion, allows you to edit this file, adding entries or updating them. Since large amounts of the entries are 'common' to similar chips, this allows a chip to be added, by loading the entry for a 'similar' chip. then saving it under the new name, and editing the details required. Only once this is done, do you touch the header file, changing it's entries to match the changes made.
Options are:
1) For very similar chips, if one exists with _extra_ features, use this, without any changes, but avoid these extras. Then on the final hex file, edit the device name. This works with any compiler.
2) On the Windows compiler only (see PCM programmers comment about the IDE), copy the entry from one, preferably with extra features, and turn these off. Then remove the corresponding lines from the header.
3) Again on the Windows compiler only, find a chip with features missing, but as close as possible. Find another with the 'extra' features. Turn on all the features in the device editor, on a 'new' entry, copying the settings from both chips. Do a similar 'merge' in the header files adding the missing parts from the second.

Best Wishes