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Associate
Jul 11, 2025 2:45 PM UTC
Solved

Generating LL library for FDCAN

Hi Team,

I am working on SIL2/3 compliance project. For this I need to generate and work on LL based libraries instead of HAL libraries.

I am using STM32Cube v1.19.0. and working on STM32H753xx and STM32G4A1VET6 series MCU.

I am unable to generate LL libraries for FDCAN.

Need your help support for generating LL based FDCAN libraries.

 

Regards,

Abey

 

 

This topic has been closed for replies.
TDK
TDKBest answer
Jul 12, 2025 12:55 AM UTC

There is no LL FDCAN library on STM32H7. Only HAL.

stm32h7xx-hal-driver/Src at ca5cc7090a069ddd3c78297a4c3dc6eace8a8511 · STMicroelectronics/stm32h7xx-hal-driver

"If you feel a post has answered your question, please click ""Accept as Solution""."

7 replies

Andrew Neil
Super User
Jul 11, 2025 3:10 PM UTC

Not sure what you mean by, "generate LL libraries" ?

The LL code is provided by ST in the firmware pack - you don't "generate" it.

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
TDK
TDKBest answer
Jul 12, 2025 12:55 AM UTC
"If you feel a post has answered your question, please click ""Accept as Solution""."
AbeyAuthor
Associate
Jul 14, 2025 7:21 AM UTC

Thank you @TDK 

For SIL2/3 compliance, "HAL" library-based coding Standard is acceptable?

If not, what are the other coding standard options for SIL2/3 compliance-based project?

Regards,

Abey

 

TDK
Jul 14, 2025 1:22 PM UTC
AbeyAuthor
Associate
Jul 14, 2025 5:44 PM UTC

Yes,,our team connected with ST supplier for signing NDA to get the functional safety libraries. This process is in progress.

Meanwhile, we are  working on the FDCAN config and communication establishment for STM32H7 and STM32G4 series.

But we need ST support team to confirm if, "HAL" library-based coding Standard is acceptable for SIL2/3 compliance or not?

If not, what are the other coding standard options for SIL2/3 compliance-based project?

This is important for us to align on coding standard.

TDK
Jul 14, 2025 5:50 PM UTC

Your original question is answered. Nothing about SIL in the OP.

If you have a new question, perhaps raise a new issue.

This is a community forum and isn't a direct line to ST support. If you want to submit a ticket, consider doing so here:

https://ols.st.com/s/

 

SIL compliance is more than just a check-the-box exercise based on which library you use.

"If you feel a post has answered your question, please click ""Accept as Solution""."
AbeyAuthor
Associate
Jul 15, 2025 1:52 PM UTC

Thanks @TDK 

I will connect with ST team. Thanks for the link you shared.