can we overload a compiler function?

asmallri · Joined: 12 Aug 2004 Posts: 1635 Location: Perth, Australia

I am using a PIC18F8722 with PCWH 3.249

This PIC has a problem with the SPI (lots of problems) and I need to implement a work around as per the errata. My code base supports multiple different PIC families so I need a mechanism to address just the 8722 and variants.

What I want to do is be able to substitute the CCS spi_read() function with my own. I do not want to use a different function name. The compiler seems happy to accept it but will not use it. Can internal functions be overloaded in this version?

Failing that, can I disable the internal function?
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Regards, Andrew

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Ttelmah · Guest

#define, can be used, since the macro expansion, takes place before the main compiler pass. So:

#define spi_read(x) my_spi_func(x)

Will replace all internal calls to 'spi_read', with calls to your 'my_spi_func' function.

Best Wishes