[arm-gnu] Regarding Double Data Type Support on Cortex M4

[Vikas R]

Hello  Sir/Madam,

 

 

 

I am using MK60FN1M0VLQ12 (COTREX-M4) processor for my development.

 

I am using float and double data types in my code. When I perform any
mathematical operation on these variables , the processor goes to Hard Fault
Exception.

 

Later I have enabled the Floating Point Unit (FPU) present in processor. So
now, I can perform any mathematical operations on float datatype but still
Hard Fault problem occurs with Double data type. 

 

 

 

I am using GCC 4.5.2 Compiler for my code.

 

I have used following command to compile my main.c file. The option
-mfloat-abi=softfp helps me to support float datatype on  MK60FN1M0VLQ12
(COTREX-M4) when I kept FPU enabled.

 

 

 

arm-none-eabi-gcc -Wall -mfloat-abi=softfp -mcpu=cortex-m4 -mthumb -Qn -Os
-mlong-calls -c main.c -o main.o

 

 

 

If you know any  GCC compiler commands to solve the above problem, please
let me know.

 

 

 

Awaiting for your reply, 

 

 

 

 

 

Thanks & Regards,

 

 

 

Akash

 

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