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TMS320F280025: CCS - Preprocessor Macros all white background after 5000 lines of code

Part Number: TMS320F280025


Hi,

I have a problem with CCS ( Version: 12.1.0.00007), that when a file exceeds 5000 lines of code, the preprocessor macros are not distinguishable at all. It will not grey out the background of any preprocessor command, for example the following happens:

And when I have less than 5000 lines of code it looks good again:

So, any ideas what can be the cause? Can I somehow set the limit of the lines before it starts with optimizing for file size (i think this might be the problem, there was a long time ago once such a question when I opened a large file, but I it never happened again).