SensorTile.Box Pro - BlueNRG-LP chip STM32WB07KC with code SensorTile.Box_PRO_R20_DTM_SPI.bin

[dufaza]

Hi team,

i’m using a SensorTile.Box Pro and want to increase the Bluetooth RF power of the STM32WB07KC (BlueNRG-LP) with an external Power Amplifier and external Antenna. So, i appreciate to be able to modify the code of this chip, BlueNRG-LP, not the one of the STM32U585.

Can ST provide the source project corresponding to:

FP-SNS-STBOX1/Utilities/DTM_BlueNRG-LP/SensorTile.Box_PRO_R20_DTM_SPI.bin

The image reports:

DTM 1.2.0
DTM Variant 0x02 (SPI)
BLE Stack 3.1.1
Build 49063

The firmware has been successfully dumped and compared against the distributed binary, confirming that the running image matches the official ST binary.

I would like to:

1. Understand how aci_hal_set_tx_power_level() is handled in this firmware and whether RF output power is intentionally limited on STEVAL-MKBOXPRO.

2. Determine whether TX_SEQUENCE / RX_SEQUENCE GPIO alternate functions can be enabled in this project.

3. Drive an external 2.4 GHz PA/LNA front-end (e.g. SKY66118-11) using a dedicated TX control signal.

4. Identify which BlueNRG-LP GPIOs, if any, remain available on the SensorTile.Box PRO hardware.

Is the corresponding source project available, or is there an equivalent BlueNRG-LP SDK project that was used to generate this binary?

Great, great thanks if somebody can help me. Christian

[Federica Bossi]

Hi ​@dufaza 

In this app, you can find all the materials related to BLUENRG-LP.
https://www.st.com/en/embedded-software/stsw-bluenrg1-dk.html
However, the source code for the DTM project is located in this folder:
BlueNRG-LP_LPS DK 1.2.0\Projects\BLE_Examples\DTM
Yes, you can adjust the transmission power and so on.

[dufaza]

Thanks so much