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

Kernel
1

qyw wrote on Wednesday, October 08, 2014:

I have met some issue:
…\FreeRTOSV8.1.2\portable\RVDS\ARM_CM4F\portmacro.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 configMAX_PRIORITIES ( ( unsigned portBASE_TYPE ) 8 )
#define configMAX_PRIORITIES 8
I think it is not good idea to do so. Does anybody have nice solution?

2

rtel wrote on Wednesday, October 08, 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).

Regards.

3

qyw wrote on Wednesday, October 08, 2014:

Thank you.