Adding CMSIS5 for PSoC5 in PSoC Creator 4.3

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Roger
Level 2
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10 replies posted 10 sign-ins 5 replies posted

Hi,

I'm trying to add CMSIS 5 to a PSoC 5 project (CY8C5888LTI-LP097). I followed this tutorial with minor adaptations because it was written 6 years ago, but it was modified only some months ago. The main changes I've done is that I need to add \CMSIS\Core\Include and \CMSIS\DSP\Include because of the structure of CMSIS 5.

pastedImage_0.png

I've also added the "m" in the linker (but I'm not sure why I need to add it).

pastedImage_1.png

But when I compile I get an error that tells me the following:

ERROR: PSoC Creator\Project_Example01\Project_Example01.cydsn\CortexM3\ARM_GCC_541\Debug\Project_Example01.elf section '.bss' will not fit in region 'ram'

ERROR: region RAM overflowed with stack

ERROR: region 'ram' overflowed by 0 bytes

Everything I do it always say ram overflowed by 0 bytes. And then a lot of warnings saying undefined reference to some functions:

undefined reference to 'arm_cos_f32'

undefined reference to 'arm_rfft_fast_init_f32'

undefined reference to 'arm_mult_f32'

undefined reference to 'arm_rfft_fast_f32'

undefined reference to 'arm_cmplx_mag_f32'

undefined reference to 'arm_scale_f32'

undefined reference to 'arm_max_f32'

which this functions are defined in CMSIS\DSP. So I'm not sure if I'm adding it correctly, if I'm not doing correctly, which are the correct steps?

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Rakshith
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Hi RoAl_1242481​,

Please refer to this thread - Install CMSIS DSP for CY8CPROTO-062-4343W on ModusToolbox v2.1.0 on Windows (Still)

Although it is regarding PSoC 6 and ModusToolbox, it helped me in including the library.

Please follow these steps and let me know if this works -

1. Download ARM.CMSIS.5.7.0.pack​, change the extension from .pack to .zip as mentioned in the above-referenced thread and extract the archive file.

2. Copy the Core and DSP folder in the CMSIS folder and place it in your PSoC 5LP PSoC Creator project.

3. In the Compiler section on Build Settings add the following include directories -

pastedImage_1.png

4. Add ARM_MATH_CM3 preprocessor definition.

5. In the Linker section, add the math library (m) in the Additional Libraries and add the following link file -

pastedImage_3.png

6. Click on Apply and OK.

7. Add the necessary .c files to the project. First I created a folder - DSP_Basic and added all the .c files in the BasicMathFunctions directory except BasicMathFunctions.c

8. Built the project with an example code.

9. I then added the .c files in TransformFunctions directory (except TransformFunctions.c).

I was able to successfully build the project as shown. I have archived the entire project for your reference. Please let me know if this worked.

pastedImage_6.png

Thanks and Regards,

Rakshith M B

Thanks and Regards,
Rakshith M B

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Rakshith
Moderator
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250 likes received 1000 replies posted 750 replies posted

Hi RoAl_1242481​,

I've also added the "m" in the linker (but I'm not sure why I need to add it).

This is to add the math library. You can refer to this thread for more details - Re: PSoC Creator can not find "math.h"?

Can you please let me know if you are adding the CMSIS files to an empty PSoC 5LP project? Is the linker script modified or do you see any address overlap in the linker script?

Also, are all the files added to the PSoC Creator project in Workspace Explorer? Can you try adding just the CMSIS core libraries and try building the project and let me know your observations?

Thanks and Regards,

Rakshith M B

Thanks and Regards,
Rakshith M B
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Roger
Level 2
Level 2
10 replies posted 10 sign-ins 5 replies posted

Hi RakshithM_16​,

Related to "m", I realized later that it's the way how PSoC Creator is adding -lm flag and that is for math.h library.

No, I didn't do that because that explanation is not in the guide linked in my previous comment. I'm using SPIM_Master example project as a reference project, I'm just following that guide. The linker script has not been modified.

Regards.

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Roger
Level 2
Level 2
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I also tried to use the previous verison of CMSIS, which is CMSIS4. I followed the same steps described in the tutorial of the first post. But libraries are not handled correctly by PSoC creator.

I've added the source files that I need as you can see in the picture below (previous steps are described in the tutorial):

pastedImage_0.png

But when I compile, PSoC Creator is not able to find arm_math.h, which is in CMSIS/Include folder.

Any ideas?

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Roger
Level 2
Level 2
10 replies posted 10 sign-ins 5 replies posted

This is not explained in the tutorial provided by Cypress, you also need to fill "Additional Link Files":

pastedImage_1.png

After doing that, project will compile using CMSIS 4 without any error. But I'm still stuck for CMSIS 5.

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Rakshith
Moderator
Moderator
Moderator
250 likes received 1000 replies posted 750 replies posted

Hi RoAl_1242481​,

Please refer to this thread - Install CMSIS DSP for CY8CPROTO-062-4343W on ModusToolbox v2.1.0 on Windows (Still)

Although it is regarding PSoC 6 and ModusToolbox, it helped me in including the library.

Please follow these steps and let me know if this works -

1. Download ARM.CMSIS.5.7.0.pack​, change the extension from .pack to .zip as mentioned in the above-referenced thread and extract the archive file.

2. Copy the Core and DSP folder in the CMSIS folder and place it in your PSoC 5LP PSoC Creator project.

3. In the Compiler section on Build Settings add the following include directories -

pastedImage_1.png

4. Add ARM_MATH_CM3 preprocessor definition.

5. In the Linker section, add the math library (m) in the Additional Libraries and add the following link file -

pastedImage_3.png

6. Click on Apply and OK.

7. Add the necessary .c files to the project. First I created a folder - DSP_Basic and added all the .c files in the BasicMathFunctions directory except BasicMathFunctions.c

8. Built the project with an example code.

9. I then added the .c files in TransformFunctions directory (except TransformFunctions.c).

I was able to successfully build the project as shown. I have archived the entire project for your reference. Please let me know if this worked.

pastedImage_6.png

Thanks and Regards,

Rakshith M B

Thanks and Regards,
Rakshith M B