STM32U585 does not rollback to RDP=0 after running TFM application

[SedCore]

Hello,

I have a B-U585I-IOT02A board, and I followed the tutorial at Getting started with STM32CubeU5 TFM application - User manual. Unfortunately, I couldn't get it to work and I tried to rollback, following the steps described in Section 10.6 STM32U5 device reinitialization, but I couldn't get my device reinitialized to the RDP=0 level.

The default password that I used in regression.sh is 0xFACEB00C 0xDEADBABE, switch SW1 (BOOT0 pin) is on position 1, and I connected TAMP_IN8 (PE4 on CN3 pin 11) and TAMP_OUT8 (PE5 on CN3 pin 14) as suggested in Solved: STM32U585 DOES NOT RETURN TO RDP=0. - STMicroelectronics Community

But I still get the same errors:

 

C:\WINDOWS\system32>STM32_Programmer_CLI.exe -c port=swd mode=UR -unlockrdp2 0xFACEB00C 0xDEADBABE
 -------------------------------------------------------------------
 STM32CubeProgrammer v2.16.0
 -------------------------------------------------------------------

ST-LINK SN : 002600303432511630343838
ST-LINK FW : V3J15M6
Board : B-U585I-IOT02A
Voltage : 3.29V
Error: ST-LINK error (DEV_TARGET_NOT_HALTED)
ST-LINK SN : 002600303432511630343838
ST-LINK FW : V3J15M6
Board : B-U585I-IOT02A
Voltage : 3.29V
Unlock RDP2 password succefully done!
Error: ST-LINK error (DEV_TARGET_NOT_HALTED)

 

 

 

C:\WINDOWS\system32>STM32_Programmer_CLI.exe -c port=swd mode=hotplug -ob rdp=0xDC
 -------------------------------------------------------------------
 STM32CubeProgrammer v2.16.0
 -------------------------------------------------------------------

ST-LINK SN : 002600303432511630343838
ST-LINK FW : V3J15M6
Board : B-U585I-IOT02A
Voltage : 3.29V
SWD freq : 8000 KHz
Connect mode: Hot Plug
Reset mode : Software reset
Device ID : 0x482
Revision ID : Rev X
Device name : STM32U575/STM32U585
Flash size : 2 MBytes (default)
Start Address : 8000000
Device type : MCU
Device CPU : Cortex-M33
BL Version : 0x0
Debug in Low Power mode enabled


UPLOADING OPTION BYTES DATA ...

 Bank : 0x00
 Address : 0x40022040
 Size : 36 Bytes

▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
Error: Uploading Option Bytes bank: 0 failed
Error: Initializing the Option Bytes failed

 

Any help please?

@Guillaume K @ @Jocelyn RICARD 

[Jocelyn RICARD]

Hello @SedCore ,

by default you don't go in RDP2 anyway, so just launching regression.sh should work

Best regards

Jocelyn

[SedCore]

Hello @Jocelyn RICARD ,

For this board I ran the hardening.sh script, so the RDP2 level was activated.

And the regression.sh script fails.

regression script started
Regression to RDP 0, enable tz
 -------------------------------------------------------------------
 STM32CubeProgrammer v2.17.0
 -------------------------------------------------------------------

ST-LINK SN : 002600303432511630343838
ST-LINK FW : V3J15M6
Board : B-U585I-IOT02A
Voltage : 3.29V
SWD freq : 8000 KHz
Connect mode: Hot Plug
Reset mode : Software reset
Device ID : 0x482
Revision ID : Rev X
Device name : STM32U575/STM32U585
Flash size : 2 MBytes (default)
Device type : MCU
Device CPU : Cortex-M33
BL Version : 0x0
Debug in Low Power mode enabled


UPLOADING OPTION BYTES DATA ...

 Bank : 0x00
 Address : 0x40022040
 Size : 36 Bytes

▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒ 0%
Error: Uploading Option Bytes bank: 0 failed
Error: Initializing the Option Bytes failed
 -------------------------------------------------------------------
 STM32CubeProgrammer v2.17.0
 -------------------------------------------------------------------

ST-LINK SN : 002600303432511630343838
ST-LINK FW : V3J15M6
Board : B-U585I-IOT02A
Voltage : 3.29V
Error: ST-LINK error (DEV_TARGET_NOT_HALTED)
2nd connect tentative with frequency (8MHz)
ST-LINK SN : 002600303432511630343838
ST-LINK FW : V3J15M6
Board : B-U585I-IOT02A
Voltage : 3.29V
Error: ST-LINK error (DEV_TARGET_NOT_HALTED)
regression script failed, press a key