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

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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: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?
  1 Comment
liangmaokun liangmaokun
liangmaokun liangmaokun on 22 Apr 2022
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
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?

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Accepted Answer

Jack Ferrari
Jack Ferrari on 9 May 2022
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.
Feel free to follow-up on this thread or the one linked above if you have any questions.

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