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Compiling FreeRTOS v8.1.2 in MDK-ARM (Keil v5)

Posted by qyw on October 8, 2014

I have met some issue: ........FreeRTOSV8.1.2portableRVDSARM_CM4Fportmacro.h(151): error: #18: expected a ")" error: token is not a valid binary operator in a preprocessor subexpression.

The solution was to change line 96 in FreeRTOSConfig.h: #define configMAXPRIORITIES ( ( unsigned portBASETYPE ) 8 ) #define configMAX_PRIORITIES 8 I think it is not good idea to do so. Does anybody have nice solution?

Compiling FreeRTOS v8.1.2 in MDK-ARM (Keil v5)

Posted by rtel on October 8, 2014

This is presumably because the constant is used in a pre-processor directive, and the pre-processor directive does not understand the casting. It is best just to remove the casting from the constants definition in this case (as you have done).


Compiling FreeRTOS v8.1.2 in MDK-ARM (Keil v5)

Posted by qyw on October 8, 2014

Thank you.

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