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How do stm32wl33 CPU and the sub-1GHz wireless (Radio) communicate?

KiteLee
Associate II

SPI or serial port?

If it weren't for those two, Then why must the MCU_API_delay() function be set while ((LL_USART_IsActiveFlag_TXE_TXFNF(USART1) == RESET) || (LL_USART_IsActiveFlag_TC(USART1)) == RESET)) {};

We can use both uart of MCU, so I want to confirm with you whether it is necessary to configure here.

1 ACCEPTED SOLUTION

Accepted Solutions
Andrew Neil
Super User

See the datasheet - they communicate via the Bus Matrix:

AndrewNeil_0-1744196578484.png

https://www.st.com/resource/en/datasheet/stm32wl33k8.pdf#page=6

via https://www.st.com/en/microcontrollers-microprocessors/stm32wl33k8.html#documentation

 

 

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.

View solution in original post

6 REPLIES 6
Andrew Neil
Super User

See the datasheet - they communicate via the Bus Matrix:

AndrewNeil_0-1744196578484.png

https://www.st.com/resource/en/datasheet/stm32wl33k8.pdf#page=6

via https://www.st.com/en/microcontrollers-microprocessors/stm32wl33k8.html#documentation

 

 

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.
KiteLee
Associate II

thk's,

That's the MRSUBG in STM32CubeMX.

uart non-SIGFOX must be configured.

STTwo-32
ST Employee

Hello @KiteLee 

Could you specify the exact question you are asking? Is it about the Radio or the Sigfox?

Best Regards.

STTwo-32 

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

sigfox

Still no idea what your actual question is now!

Has your original question, "How do stm32wl33 CPU and the sub-1GHz wireless (Radio) communicate?" been answered?

If so, please mark the solution. Then you can start a new thread for a new question.

If not, please explain clearly what you're missing.

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.
STTwo-32
ST Employee

If the original post is answered @KiteLee, could you please select @Andrew Neil's comment as Solution.

Best Regards.

STTwo-32

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.