GNU Arm Embedded Toolchain

CPU option resulting in error

Asked by Nayani P

Hi,
I installed the GNU tools ARM embedded 4.7 2013q1 and tried to compile a very simple code. I set the following options:
-mcpu = cortex-m3 -mthumb

I am getting errors:
warning mcpu deprecated use -mtune or -march instead
bad value <cortex-m3> for -mtune = switch

What is wrong in the above? Thank you.

NPS

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GNU Arm Embedded Toolchain Edit question
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Solved by:
Terry Guo
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Best Terry Guo (terry.guo) said : 		#1

I saw spaces between -mcpu and cortex-m3. Please try again with removing them. Or simply copy and run command "arm-none-eabi-gcc -mthumb -mcpu=cortex-m3 --help", you should see the help message.

Revision history for this message
Nayani P (partha-nayani) said : 		#2

Hello Terry Guo,
Thanks for your time. Looks like the spaces caused the problem. I am able to compile now. Thank you once again.

Partha