Error connecting Custom DLL to STM32F302R8 GPIO or PWM

Osei Kay

I created a custom DLL to be used in Altair Embed 2021.1. The user block works fine if it runs alone. But when I try to download it to STM32F302R8, I get  an error:

" C:\Altair\Embed2021\cg/Diagram1_21.c:41: undefined reference to `cgMain'

c:/program files (x86)/gnu arm embedded toolchain/10 2021.10/bin/../lib/gcc/arm-none-eabi/10.3.1/../../../../arm-none-eabi/bin/ld.exe: Diagram1_21.o: in function `main':

C:\Altair\Embed2021\cg/Diagram1_21.c:77: undefined reference to `cgMainSS' c:/program files (x86)/gnu arm embedded toolchain/10 2021.10/bin/../lib/gcc/arm-none-eabi/10.3.1/../../../../arm-none-eabi/bin/ld.exe:

C:\Altair\Embed2021\cg/Diagram1_21.c:80: undefined reference to `cgMainSE' collect2.exe: error: ld returned 1 exit status".

I have attached a screenshot of the message. Any help?

Girish Karamadi_21849

User Blocks works for simulation not for codegen . 

May I know what are you trying to achieve??

Regards,

Girish

Osei Kay

I appreciate your response. 

I am trying to implement a controller for a motor. I am trying to implement an advanced controller, that requires complex algorithms that cannot be easily implemented using the blocks. I have written the code in C/C++. 

Any help or suggestions will be appreciated. 

Regards,

Kay

Girish Karamadi_21849

You can use extern blocks to use the external code. Attached the simple example using extern block.

 

Regards,

Girish

Osei Kay

Okay. I will try that. I will update this platform on the response.