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SBaro.11
SBaro.11
Associate III
May 15, 2023
Solved

Where FE_CTRL1, FE_CTRL2 and FE_CTRL3 are used with STM32WL55 ?

  • May 15, 2023
  • 2 replies
  • 1369 views

Hi all,

I'm here beceause I have a question about STM32WL55, I have this board STM32WL55JC and I I look in CAD ressources in schematic file , there is a switch to chosse between High or Low power emission and receive mode. This switch U7 is is ordered by FE_CTRL1/2/3 but where these pin are used in STM32WLxx-HAL_Driver maybe when we call SUBGRF_SetSwitch ?

Thanks

This topic has been closed for replies.
Best answer by mckenney

They are used/configured in the BSP, e.g. stm32wlxx_nucleo_radio.[c/h]. Look for RF_SW_CTRL1_PIN (and similar).

The usage is different between the MB1389 (Nucleo) and MB1842 (i4s) reference designs. MB1842 has its own BSP.

2 replies

mckenney
mckenneyBest answer
Associate
May 15, 2023

They are used/configured in the BSP, e.g. stm32wlxx_nucleo_radio.[c/h]. Look for RF_SW_CTRL1_PIN (and similar).

The usage is different between the MB1389 (Nucleo) and MB1842 (i4s) reference designs. MB1842 has its own BSP.

SBaro.11
SBaro.11Author
Associate III
May 16, 2023

many thanks to you :grinning_face:

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