Error while using "Generate Code for Quantized LSTM Network and Deploy on Cortex-M Target" example.

After using the command ：

codegen -config cfg net_predict -args {coder.Constant('activityRecognisationNet.mat'),single(zeros(3,10))}

I get the error：

"C:/Users/Administrator/Documents/MATLAB/Examples/R2022a/deeplearning_shared/CodeGenerationForQuantizedDeepLearningNetworkOnCortexMExample/codegen/lib/net_predict/predict.c"

C:/Users/Administrator/Documents/MATLAB/Examples/R2022a/deeplearning_shared/CodeGenerationForQuantizedDeepLearningNetworkOnCortexMExample/codegen/lib/net_predict/predict.c:11:10: fatal error: arm_nnfunctions.h: No such file or directory

11 | #include "arm_nnfunctions.h"

| ^~~~~~~~~~~~~~~~~~~

compilation terminated.

gmake: *** [predict.o] Error 1

The make command returned an error of 2

Error(s) encountered while building "net_predict"

------------------------------------------------------------------------

??? Build error: C compiler produced errors. See the Build Log for further details.

More information

Code generation failed: View Error Report

It means my compiler can not find "arm_nnfunctions.h".I have installed the stm32 support packages.Does the compiler need to set include path?How to set the include path?

[liangmaokun liangmaokun]

After adding "cfg.CustomInclude = C:\ProgramData\MATLAB\SupportPackages\R2022a\3P.instrset\cmsis.instrset\CMSIS\NN\Include" to the cfg,the "fatal error: arm_nnfunctions.h: No such file or directory" bug has fix.But the new error occus like the following：

### Connectivity configuration for function 'net_predict': 'STM32 Microcontroller'

### COM port: COM3

### Baud rate: 115200

??? An error occurred while calling into the SIL or PIL target connectivity implementation.

Build process stopped at compile stage. Unable to find the following link-only objects that are specified in the build

information:

lib\libcmsisnn.a

Code generation failed: View Error Report

Error using codegen

I don't find the file named libcmsisnn.a in my computer.Does it means that I should creat it myself and how to creat it?

Answer 1

[Jack Ferrari]

Hi Liangmaokun,

The example you are trying to run requires the CMSIS-NN library to be built (this will give you the missing libcmsisnn.a file) and environment variables correctly set.

Here is a link to the installation steps: https://www.mathworks.com/matlabcentral/answers/1631260-matlab-coder-how-do-i-build-the-arm-cmsis-nn-library-for-deep-learning-c-code-generation-and-depl

Feel free to follow-up on this thread or the one linked above if you have any questions.

[liangmaokun liangmaokun]

Thank you for your answer. This is what I want！