[STM32WB55] BLE On/Off function ?

[Nemonas]

[STM32WB55] Is there a BLE On/Off function?

I want to enable/disable the BLE function with a button

[Remy ISSALYS · Accepted solution]

Hello,

If there isn't any radio activity, the CPU2 is in low power mode. If you want to turn Off the BLE, you can create a task which call hci_reset function and set this task when you press your button. Then, to re enable the BLE, you have to perform the initialization (SHCI, GAP, GATT) again.

Best Regards

[ttnickb]

Hi Remy,

Is there any benefit to calling `LL_C2_PWR_SetPowerMode(LL_PWR_MODE_SHUTDOWN)` in addition to `hci_reset()`?

[Remy ISSALYS]

Hello,

In order to enter in shutdown mode, you must turn off the CPU2 before. When CPU2 is running, you shall not use LL_C2 command like the following: LL_C2_PWR_SetPowerMode(LL_PWR_MODE_SHUTDOWN);

When you called hci_reset function, the CPU2 is running so you can't call the shutdown command.

Best Regards

[busadhruv]

What if I don't want to turn off hci controller and just wanted to stop or kind of off the BLE stack when need to disable and again re-enable the BLE means re initialize the stack and all and BLE got diacovered.