STM32WB55 - ACI_HAL_TONE_START command rf channel resolution

[serhat]

Hi everyone,

I use STM32WB55 with the BLE stack 13.0 (full version) and want to test the RF. In the an5270 document, I noticed the ACI_HAL_TONE_START command and it is allowed to change the rf channel from 2.402 to 2.480 GHz with 2 MHz resolution. However, I want to change the channel to a 1 MHz resolution. For example, I want to set the channel to 2.403 GHz. Is it possible to do? If yes, how?

Thank you.

Have a nice day.

Serhat.

[Remy ISSALYS · Accepted solution]

Hello,

The BLE system uses 40 RF channels, with 2 MHz spacing, so it's not possible to have a 1 MHz resolution.

Best Regards