Skip to main content
bozgan
Associate II
Jan 31, 2025 5:54 AM UTC
Solved

LoRa FHSS Receiving in STM32WL55JC (E5) module?

I want to work with Lora FHSS. Resources on this subject are limited.

 \STM32Cube_FW_WL_V1.3.0\Projects\NUCLEO-WL55JC\Applications\SubGHz_Phy\SubGHz_Phy_LrFhss. ;
I looked at the FHSS example you told me about. This example works in TX mode only. It only sends data using FHSS. I want to listen to this transmitted data with the same model STM32 Nucleo WLE5JC card. Is there an example of this? How can I configure the FHSS configuration to always listen?

This topic has been closed for replies.
STTwo-32
STTwo-32Best answer
ST Technical Moderator
Jan 31, 2025 3:43 PM UTC

This may be possible, but It is not tested.

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.
View in thread

6 replies

STTwo-32
STTwo-32
ST Technical Moderator
Jan 31, 2025 8:47 AM UTC

Hello @bozgan 

For now, there is not such an implementation. The only available example is the TX one that I've shared with you previously. 

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.
Andrew Neil
Andrew Neil
Super User
Jan 31, 2025 9:14 AM UTC

@bozgan Here: https://community.st.com/t5/stm32-mcus-wireless/lora-fhss-support-for-stm32wl55jc-e5-module/td-p/766777

 

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.
    bozganAuthor
    Associate II
    Jan 31, 2025 11:20 AM UTC

     @STTwo-32 @Andrew Neil 
    Let's say I ran the TX (transmission) based on your example. For listening (RX), what should I configure it according to? What criteria and factors should I pay attention to?

    STTwo-32
    STTwo-32
    ST Technical Moderator
    Jan 31, 2025 2:30 PM UTC

    For now, this is not implemented on the current version of the stack. It will may be added on the future.

    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.
    Andrew Neil
    Andrew Neil
    Super User
    Jan 31, 2025 2:35 PM UTC

    AIUI, the LoRa part of STM32WL is based on Semtech IP ?

    So, by looking at how Semtech do  this in their own drivers, one should be able to work out what to do 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.
    Terms & ConditionsAccessibility statement