Request a sample code for zephyr semaphore dependent SPI API calls

[Ubaid_M]

Hi,

I am working with nCS SPI HAL, wherein i want semaphore in place at the HAL, which can avoid multiple slaves' concurrent access.

Can you kindly point me to any such semaphore logic or sample program available.

Thanks,

[sipan112]

hello Ubaid

you can check this: Basic SPI on STM32 with Zephyr · GitHub

[Ubaid_M]

Hello sipan112,

sipan112 said:

check this

This is just a sample app for SPI_Write() demo.

I am rather looking for a sample project demonstrating use of semaphore.

Ubaid_M said:

wherein i want semaphore in place at the HAL, which can avoid multiple slaves' concurrent access.

Ubaid_M said:

Can you kindly point me to any such semaphore logic or sample program available.

[dejans]

Hi,

You can get more information about semaphores under Zephyr semaphores.

Best regards,
Dejan

[Ubaid_M]

Hello dejans,

I am aware of 

dejans said:

information about semaphores

I am requesting for a sample project on usage of semaphores.

Ubaid_M said:

wherein i want semaphore in place at the HAL, which can avoid multiple slaves' concurrent access

[dejans]

Hi,

You could try searching for functions k_sem_define(), k_sem_give() and k_sem_take() from VS Code. For example, you could look at zephyr\drivers\spi.

Best regards,
Dejan

[Ubaid_M]

Hello dejans,

dejans said:

searching for functions k_sem_define(), k_sem_give() and k_sem_take() from VS Code.

This I saw in the documentation, rather I am asking for a sample code & project demonstrating the use of semaphore and these APIs.

Regards,

[dejans]

Hi,

Have you checked zephyr\drivers\spi?

Best regards,
Dejan

[Ubaid_M]

Hello dejans,

dejans said:

Have you checked zephyr\drivers\spi?

No semaphore usage in SPI driver files under the path nor in SPI test code.

Regards,

[Ubaid_M]

I have evaluated and completed my coding.
Please mark this case as closed.

[sipan112]

hello Ubaid_M
when i get a sample available, i will share it with you