STM32H7 cannot program anymore after running example of SBSFU example (1 Image) for STM32H7B3.

[jiangpen]

the stm32programmer can connect, erase whole chip, but cannot program.

What I have done is to run example of SBSFU example (1 Image). I can see bootloader running. Then I try to erase the chip to program my other program.

I try to load the PCROP and secure section from my coworker's setting, but it does not allow me to change.

I attached all the stm32programmer logs.

May I know anyway can solve this lock program, or this device is actually locked

[Bubbles]

Hi @jiangpen​ ,

I think this may be related to the secure memory configuration, see appendix I in UM2262. Have you considered that?

J

[Jocelyn RICARD]

Hello @jiangpen​ 

your option bytes have definitely not the good value.

Here is what you should get:

c:\Program Files\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin>STM32_Programmer_CLI.exe -c port=SWD -ob displ
 -------------------------------------------------------------------
 STM32CubeProgrammer v2.8.0
 -------------------------------------------------------------------
 
ST-LINK SN : 0024001E3038511234333935
ST-LINK FW : V3J8M3
Board : STM32H7B3I-DK
Voltage : 3.29V
SWD freq : 24000 KHz
Connect mode: Normal
Reset mode : Software reset
Device ID : 0x480
Revision ID : Rev Z
Device name : STM32H7A/B
Flash size : 2 MBytes
Device type : MCU
Device CPU : Cortex-M7
BL Version : 0x90
 
 
UPLOADING OPTION BYTES DATA ...
 
 Bank : 0x00
 Address : 0x5200201c
 Size : 308 Bytes
 
██████████████████████████████████████████████████ 100%
 
 
OPTION BYTES BANK: 0
 
 Read Out Protection:
 
 RDP : 0xAA (Level 0, no protection)
 
 BOR Level:
 
 BOR_LEV : 0x0 (reset level OFF)
 
 User Configuration:
 
 IWDG1_SW : 0x1 (Independent watchdog is controlled by software)
 NRST_STOP : 0x1 (STOP mode on Domain 1 is entering without reset)
 NRST_STBY : 0x1 (STANDBY mode on Domain 1 is entering without reset)
 VDDMMC_HSLV : 0x0 (I/O speed optimization at low-voltage disabled)
 IWDG_FZ_STOP : 0x1 (Independent watchdog is running in STOP mode)
 IWDG_FZ_SDBY : 0x1 (Independent watchdog is running in STANDBY mode)
 SECURITY : 0x0 (Security feature disabled)
 VDDIO_HSLV : 0x0 (Product working in the full voltage range,I/O speed optimization at low-voltage disabled)
 SWAP_BANK_OPT: 0x0 (after boot loading, no swap for user sectors)
 
 Boot address Option Bytes:
 
 BOOT_CM7_ADD0: 0x800 (0x8000000)
 BOOT_CM7_ADD1: 0x1FF0 (0x1FF00000)
 
 PCROP Protection:
 
 PROT_AREA_START1: 0xFF (0x800FF00)
 PROT_AREA_END1: 0x0 (0x80000FF)
 DMEP1 : 0x1 (Flash Bank 1 PCROP zone is erased when RDP level regression (change from level 1 to 0) occurs) 
 PROT_AREA_START2: 0xFF (0x810FF00)
 PROT_AREA_END2: 0x0 (0x81000FF)
 DMEP2 : 0x1 (Flash Bank 2 PCROP zone is erased when RDP level regression (change from level 1 to 0) occurs) 
 
 Secure Protection:
 
 SEC_AREA_START1: 0xFF (0x800FF00)
 SEC_AREA_END1: 0x0 (0x80000FF)
 DMES1 : 0x1 (Flash Bank 1 secure area is erased when RDP level regression (change from level 1 to 0) occurs)
 SEC_AREA_START2: 0xFF (0x810FF00)
 SEC_AREA_END2: 0x0 (0x81000FF)
 DMES2 : 0x1 (Flash Bank 2 secure area is erased when RDP level regression (change from level 1 to 0) occurs)
 
 DTCM RAM Protection:
 
 ST_RAM_SIZE : 0x0 (2 KB)
 
 Write Protection:
 
 nWRP0 : 0x1 (Write protection not active)
 nWRP1 : 0x1 (Write protection not active)
 nWRP2 : 0x1 (Write protection not active)
 nWRP3 : 0x1 (Write protection not active)
 nWRP4 : 0x1 (Write protection not active)
 nWRP5 : 0x1 (Write protection not active)
 nWRP6 : 0x1 (Write protection not active)
 nWRP7 : 0x1 (Write protection not active)
 nWRP8 : 0x1 (Write protection not active)
 nWRP9 : 0x1 (Write protection not active)
 nWRP10 : 0x1 (Write protection not active)
 nWRP11 : 0x1 (Write protection not active)
 nWRP12 : 0x1 (Write protection not active)
 nWRP13 : 0x1 (Write protection not active)
 nWRP14 : 0x1 (Write protection not active)
 nWRP15 : 0x1 (Write protection not active)
 nWRP16 : 0x1 (Write protection not active)
 nWRP17 : 0x1 (Write protection not active)
 nWRP18 : 0x1 (Write protection not active)
 nWRP19 : 0x1 (Write protection not active)
 nWRP20 : 0x1 (Write protection not active)
 nWRP21 : 0x1 (Write protection not active)
 nWRP22 : 0x1 (Write protection not active)
 nWRP23 : 0x1 (Write protection not active)
 nWRP24 : 0x1 (Write protection not active)
 nWRP25 : 0x1 (Write protection not active)
 nWRP26 : 0x1 (Write protection not active)
 nWRP27 : 0x1 (Write protection not active)
 nWRP28 : 0x1 (Write protection not active)
 nWRP29 : 0x1 (Write protection not active)
 nWRP30 : 0x1 (Write protection not active)
 nWRP31 : 0x1 (Write protection not active)
 nWRP32 : 0x1 (Write protection not active)
 nWRP33 : 0x1 (Write protection not active)
 nWRP34 : 0x1 (Write protection not active)
 nWRP35 : 0x1 (Write protection not active)
 nWRP36 : 0x1 (Write protection not active)
 nWRP37 : 0x1 (Write protection not active)
 nWRP38 : 0x1 (Write protection not active)
 nWRP39 : 0x1 (Write protection not active)
 nWRP40 : 0x1 (Write protection not active)
 nWRP41 : 0x1 (Write protection not active)
 nWRP42 : 0x1 (Write protection not active)
 nWRP43 : 0x1 (Write protection not active)
 nWRP44 : 0x1 (Write protection not active)
 nWRP45 : 0x1 (Write protection not active)
 nWRP46 : 0x1 (Write protection not active)
 nWRP47 : 0x1 (Write protection not active)
 nWRP48 : 0x1 (Write protection not active)
 nWRP49 : 0x1 (Write protection not active)
 nWRP50 : 0x1 (Write protection not active)
 nWRP51 : 0x1 (Write protection not active)
 nWRP52 : 0x1 (Write protection not active)
 nWRP53 : 0x1 (Write protection not active)
 nWRP54 : 0x1 (Write protection not active)
 nWRP55 : 0x1 (Write protection not active)
 nWRP56 : 0x1 (Write protection not active)
 nWRP57 : 0x1 (Write protection not active)
 nWRP58 : 0x1 (Write protection not active)
 nWRP59 : 0x1 (Write protection not active)
 nWRP60 : 0x1 (Write protection not active)
 nWRP61 : 0x1 (Write protection not active)
 nWRP62 : 0x1 (Write protection not active)
 nWRP63 : 0x1 (Write protection not active)

Best regards

Jocelyn