ST STM32WB0 Security Product Lifecycle

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The STM32WB0 series of devices uses simple readout protection features. SEGGER implemented support for these features via a dedicated utility called Device Provisioner. For more information about this, please refer to the Device Provisioner article. STM32WB0 Security Lifecycle features are implemented in the PCode_DevPro_ST_STM32WB0.pex script file.

Important notes

  1. When the device enters Deepstop mode, the SWD debug port is not powered. Therefore the result of any of the following operations is not guaranteed.

One possible recovery option is to activate the internal embedded UART bootloader through the PA10 pin (just force PA10 high during hardware reset).

Usage

DevPro -operation [operation_name] -if SWD -speed 4000 -ScriptFile PCode_DevPro_ST_STM32WB0.pex
Operation Description
CheckLockStatus Displays the current lock status.
UnlockDevice Unlocks device by performing mass errase.
LockDevice Enables readout protection.
PermanentLockDevice Enables permanent protection. The device can no longer be accessed.

Examples

Checking lock status: 

devpro -operation CheckLockStatus -if SWD -speed 4000 -ScriptFile "PCode_DevPro_ST_STM32WB0.pex"
SEGGER Device Provisioner V7.98b
Compiled Jul 31 2024 16:14:05

'q' to quit '?' for help

Command line: -operation CheckLockStatus -if SWD -speed 4000 -ScriptFile PCode_DevPro_ST_STM32WB0.pex
Opened script file: 'PCode_DevPro_ST_STM32WB0.pex'
J-Link log: Device is not locked

Enabling readout protection: 

devpro -operation LockDevice -if SWD -speed 4000 -ScriptFile "PCode_DevPro_ST_STM32WB0.pex"
SEGGER Device Provisioner V7.98b
Compiled Jul 31 2024 16:14:05

'q' to quit '?' for help

Command line: -operation LockDevice -if SWD -speed 4000 -ScriptFile PCode_DevPro_ST_STM32WB0.pex
Opened script file: 'PCode_DevPro_ST_STM32WB0.pex'
J-Link log: Device is locked successfully

Disabling readout protection: 

devpro -operation UnlockDevice -if SWD -speed 4000 -ScriptFile "PCode_DevPro_ST_STM32WB0.pex"
SEGGER Device Provisioner V7.98b
Compiled Jul 31 2024 16:14:05

'q' to quit '?' for help

Command line: -operation UnlockDevice -if SWD -speed 4000 -ScriptFile PCode_DevPro_ST_STM32WB0.pex
Opened script file: 'PCode_DevPro_ST_STM32WB0.pex'
J-Link log: Device is unlocked successfully
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