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serhat
Associate
September 9, 2022
Solved

STM32WB55 - ACI_HAL_TONE_START command rf channel resolution

  • September 9, 2022
  • 1 reply
  • 840 views

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.

This topic has been closed for replies.
Best answer by Remy ISSALYS

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

1 reply

Remy ISSALYS
Remy ISSALYSBest answer
ST Technical Moderator
September 21, 2022

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