sprintf / _sbrk make error
Hi,
I’m testing AC6 with STM32F4 Discovery. Enabled C99 on C prefs.
When using sprintf I got this from the linker:
‘Invoking: MCU GCC Linker’
arm-none-eabi-gcc -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -T”C:\STM32Toolchain\projects\Test_Hbridge_AC6\LinkerScript.ld” -Wl,-Map=output.map -Wl,--gc-sections -lm -o “Test_Hbridge_AC6.elf” @”objects.list”
c:/ac6/systemworkbench/plugins/fr.ac6.mcu.externaltools.arm-none.win32_1.3.0.201507241045/tools/compiler/bin/../lib/gcc/arm-none-eabi/4.9.3/../../../../arm-none-eabi/lib/armv7e-m/fpu\libc.a(lib_a-sbrkr.o): In function `_sbrk_r’:
sbrkr.c:(.text._sbrk_r+0xc): undefined reference to `_sbrk’
collect2.exe: error: ld returned 1 exit status
make: *** Test_Hbridge_AC6.elf Error 1
Where do I find the missing reference to _sbrk ?
thanks!