A few errors when porting VisSim project into CCS

Submitted by Anders89 on Wed, 05/01/2013 - 19:20.

I can see from the name of your undefined registers (ADC2CTL1), that you are using Concerto with 2 ADC units. You must define the preprocessor name '_CONCERTO_' in this case, as Concerto uses certain hardware registers in an incompatible way with previous Piccolo parts.

Submitted by allejard on Thu, 05/02/2013 - 02:01.

Thanks. Are there other directions for porting VisSim generated C code into CCS that is specific to this Concerto project? I still have issues with compilation.

Submitted by Anders89 on Thu, 05/02/2013 - 03:03.

As the C28x Concerto core has an FPU you will need to link with lib\ii_F280x_fpusr.lib if you checked 'Minimize RAM usage' or lib\ii_F280x_fpu.lib if you didn't.
What issues are you having?

Submitted by allejard on Thu, 05/02/2013 - 03:19.

It looks like I need to link a different library. I get an 'unresolved symbols remain' and a list of 3 symbols:

unresolved symbol _IQ24atan2PU, first referenced in /vissim80/cg/ii_F280X_fpu.lib unresolved symbol _rampgen_calc, first referenced in ./DRV8312EVM-pmsm-28M35H52 unresolved symbol _svgendq_calc, first referenced in ./DRV8312EVM-pmsm-28M35H52

I also don't understand why the VisSim model imported an IQ24 function since Concerto supports floating point. I did not check the 'minimize RAM' option, just for your information.

Thanks for your assistance.

Submitted by Anders89 on Thu, 05/02/2013 - 03:38.

No, that library is correct. It looks like you are missing the VisSim80/cg/lib/F28M35H52lnk.cmd in your project. It will pull in a number of additional libraries. It will also include some object files that will need to be included directly as CCS doesn't like them in the .cmd file. These are:

lib\f28xxFLASHboot_fpu.obj

lib\initFlash_fpu.obj

lib\F28M35x_GlobalVariableDefs.obj

Be sure to make a copy of the .cmd file before editing to remove the .obj references otherwise you won't be able to build from VisSim

Submitted by allejard on Thu, 05/02/2013 - 22:03.

Thanks. Unfortunately, this did not fix the problem. I'm actually getting more errors on top of the previously mentioned errors. I attached a screen shot of the errors I'm getting. I hate to keep asking about this on the forum - is there a document that describes how this should be done somewhere?

<?xml version="1.0" encoding="UTF-8"?>

Submitted by Anders89 on Fri, 05/03/2013 - 03:56.

Here is a CCS project that builds either Debug-RAM or Debug-Flash versions of the VisSim example blink28M3H52.
Just replace blink28M3H52.c in the project with your file.