Using assembly Code .asm file with energia

[Laxmi 0]

Hello, I was importing CMSIS 4.5 in energia but It is not building correctly because there is a .asm file in DSP library which is not compiling. Is there any way to compile .asm file in energia. 

[L.R.A 78]

board being used, which errors occur? how are you importing it?

[Laxmi 0]

I am using CC3200 launchpad. It is giving error "arm_cfft_f32.c:(.text.arm_cfft_f32+0x92): undefined reference to 'arm_bitreversal_32'. collect2.exe: error: ld returned 1 exit status.

this function is defined in arm_bitreversal2.asm but it is in assembly code. 

 

Now I have managed to compile it by changing arm_bitreversal_32 to arm_bitreversal_f32 but when I call arm_bit_reverse_32() function, it goes in FaultISR() infinite loop.

Interestingly when I do bitreverse = false in my main program then it runs fine but results are not as expected. 

[L.R.A 78]

try also asking in ti community forum, asm is very specific.

[Laxmi 0]

I asked there but they told me it is related to energia so ask here. 

[energia 485]

Energia ignores .asm files. I only compiles .c, .cpp and .S files. Try changing the extension to .S. Where did you get the CMSIS files and where did you put them in Energia?

[Laxmi 0]

I downloaded it from ARM site and placed it in libraries folder of CC3200 with some modification. 

[Laxmi 0]

So it means, I can also write assembly codes? 

[Laxmi 0]

I am getting following error when I changed .asm file to .s extension

C:\Users\LAXMIK~1\AppData\Local\Temp\build3667472384792498114.tmp\CMSIS_DSP\arm_bitreversal2.S.o]
arm-none-eabi-gcc: error: unrecognized command line option '-assembler-with-cpp'

[energia 485]

You stumbled on a bug in the compiler command. The .S files should not be compiled with -assembler-with-cpp.

 

I have fixed it and committed the patch: https://github.com/energia/Energia/commit/5889fd97028c60da2a0dac64c2614f0d18759b0c

 

Attached is the pde.jar with the fix. Unzip and replace the original one with this one. You might want to backup the original one before replacing it.

pde.jar.zip

[somecoder 0]

You stumbled on a bug in the compiler command. The .S files should not be compiled with -assembler-with-cpp.

 

I have fixed it and committed the patch: https://github.com/energia/Energia/commit/5889fd97028c60da2a0dac64c2614f0d18759b0c

 

Attached is the pde.jar with the fix. Unzip and replace the original one with this one. You might want to backup the original one before replacing it.

I have a build of energia from TI's website dated 8-4-2016 and it still puts that -assembler-with-cpp option on my .S files.  Energia won't start with the pde.jar linked here.  Is it possible that bug resurfaced in the newer build?