CODEWITHSUNDEEP
gccstm32freertos
user3583807
user3583807

Reputation: 800

Stm32f303 freertos

I try to run freertos on stm32f303 discovery. I include all header and source files from freertos archive downloaded from official web site. Also I include portable files from folder /GCC/ARM_CM4F. I use codesourcery lite compiler. And when I try to compile project i get error:

In file included from freertos/inc/portable.h:321:0,
                 from freertos/inc/FreeRTOS.h:100,
                 from freertos/src/croutine.c:66:
freertos/inc/portmacro.h:167:7: error: missing binary operator before token "long"

portmacro.h's 167-172 strings:

    #if( configMAX_PRIORITIES > 32 )
        #error configUSE_PORT_OPTIMISED_TASK_SELECTION can only be set to 1 when configMAX_PRIORITIES is less than or equal to 32.  It is very rare that a system requires more than 10 to 15 difference priorities as tasks that share a priority will time slice.
    #endif

Searching in Google give that there is preprocessor error but it don't get me point what I should to do. My Makefile settings:

# Set Libraries
LIBS        = -lm -lc

###################################################
# Set Board
MCU         = -mthumb -mcpu=cortex-m4
FPU         = -mfpu=fpv4-sp-d16 -mfloat-abi=softfp
DEFINES     = -DSTM32F3XX -DUSE_STDPERIPH_DRIVER
DEFINES     += -DUSE_DEFAULT_TIMEOUT_CALLBACK

# Set Compilation and Linking Flags
CFLAGS      = $(MCU) $(FPU) $(DEFINES) $(INCLUDES) \
            -g -Wall -std=gnu90 -O0 -ffunction-sections -fdata-sections
ASFLAGS     = $(MCU) $(FPU) -g -Wa,--warn -x assembler-with-cpp
LDFLAGS     = $(MCU) $(FPU) -g -gdwarf-2\
            -Tstm32f30_flash.ld \
            -Xlinker --gc-sections -Wl,-Map=$(PROJ_NAME).map \
            $(LIBS) \
            -o $(PROJ_NAME).elf

Where I am mistaken?

Upvotes: 0

Views: 1694

Answers (1)

Richard
Richard

Reputation: 3246

The compiler is telling you the C pre-processor does not understand the definition of configMAX_PRIORITIES. Look at the definition in FreeRTOSConfig.h, I suspect it includes a cast that the pre-processor does not understand. Remove the cast and it will probably be ok.

Upvotes: 5

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