[BUG] STM32WLE4C STM32CubeProgrammer_CLI problem with set "Write Protection" flags

[ami]

Processor STM32WLE4C

The latest STM32CubeProgrammer_CLI is not working, and it's not setting:
WRP1A_STRT
WRP1A_END
WRP1B_STRT
WRP1B_END

It looks like an error.

The sequence of steps to reproduce the issue.

1) In the microcontroller's memory, I have code that has read and write protection enabled.

~/STMicroelectronics/STM32Cube/STM32CubeProgrammer/bin/STM32_Programmer_CLI -c port=SWD mode=UR -ob displ
-------------------------------------------------------------------
STM32CubeProgrammer v2.15.0
-------------------------------------------------------------------

ST-LINK SN : 56FF6C067870545131410967
ST-LINK FW : V2J29S7
Board : --
Voltage : 3.13V
SWD freq : 4000 KHz
Connect mode: Under Reset
Reset mode : Hardware reset
Device ID : 0x497
Revision ID : Rev Y
Device name : STM32WLxx
Flash size : 64 KBytes
Device type : MCU
Device CPU : Cortex-M4
BL Version : 0xC4

UPLOADING OPTION BYTES DATA ...

Bank : 0x00
Address : 0x58004020
Size : 96 Bytes

[==================================================] 100%

Bank : 0x01
Address : 0x58004080
Size : 8 Bytes

[==================================================] 100%

OPTION BYTES BANK: 0

Read Out Protection:

RDP : 0xBB (or any value other than 0xAA and 0xCC: Level 1, read protection)

BOR Level:

BOR_LEV : 0x0 (BOR Level 0 reset level threshold is around 1.7 V)

User Configuration:

nBOOT0 : 0x1 (nBOOT0=1)
nBOOT1 : 0x1 ()
nSWBOOT0 : 0x1 (BOOT0 taken from PH3/BOOT0 pin)
SRAM_RST : 0x1 (SRAM1 and SRAM2 are not erased when a system reset occurs)
SRAM2_PE : 0x1 (SRAM2 parity check disable)
nRST_STOP : 0x1 (No reset generated when entering the Stop mode)
nRST_STDBY : 0x1 (No reset generated when entering the Standby mode)
nRST_SHDW : 0x1 (No reset generated when entering the Shutdown mode)
WWDG_SW : 0x1 (Software window watchdog)
IWGD_STDBY : 0x1 (Independent watchdog counter running in Standby mode)
IWDG_STOP : 0x1 (Independent watchdog counter running in Stop mode)
IWDG_SW : 0x1 (Software independent watchdog)
BOOT_LOCK : 0x0 (CPU1 CM4 Boot lock disabled)

Security Configuration Option bytes ESE:

ESE : 0x0 (Security disabled)

PCROP Protection:

PCROP1A_STRT : 0xFF (0x803FC00)
PCROP1A_END : 0x0 (0x8000000)
PCROP_RDP : 0x0 (PCROP zone is kept when RDP is decreased)
PCROP1B_STRT : 0xFF (0x803FC00)
PCROP1B_END : 0x0 (0x8000000)

Write Protection:

WRP1A_STRT : 0x0 (0x8000000)
WRP1A_END : 0x1E (0x800F000)
WRP1B_STRT : 0x2 (0x8001000)
WRP1B_END : 0x1 (0x8000800)

2) I am trying to set the flags using STM32_Programmer_CLI from the command line:

/home/user/STMicroelectronics/STM32Cube/STM32CubeProgrammer/bin/STM32_Programmer_CLI -c port=SWD mode=UR -rdu -hardRst -ob RDP=0xAA BOR_LEV=0x0 nBOOT0=0x1 nBOOT1=0x1 nSWBOOT0=0x1 SRAM_RST=0x1 SRAM2_PE=0x1 nRST_STOP=0x1 nRST_STDBY=0x1 nRST_SHDW=0x1 WWDG_SW=0x1 IWGD_STDBY=0x1 IWDG_STOP=0x1 IWDG_SW=0x1 BOOT_LOCK=0x0 ESE=0x0 PCROP1A_STRT=0xFF PCROP1A_END=0x0 PCROP_RDP=0x1 PCROP1B_STRT=0xFF PCROP1B_END=0x0 WRP1A_STRT=0x3 WRP1A_END=0x1 WRP1B_STRT=0x3 WRP1B_END=0x1
-------------------------------------------------------------------
STM32CubeProgrammer v2.15.0
-------------------------------------------------------------------

ST-LINK SN : 56FF6C067870545131410967
ST-LINK FW : V2J29S7
Board : --
Voltage : 3.13V
SWD freq : 4000 KHz
Connect mode: Under Reset
Reset mode : Hardware reset
Device ID : 0x497
Revision ID : Rev Y
Device name : STM32WLxx
Flash size : 64 KBytes
Device type : MCU
Device CPU : Cortex-M4
BL Version : 0xC4

Disabling memory Read Protection...
Warning: Option Byte: rdp, value: 0xAA, was not modified.
Warning: Option Bytes are unchanged, Data won't be downloaded
Time elapsed during option Bytes configuration: 00:00:00.001

Memory Read Protection disabled successfully

Hard reset is performed

UPLOADING OPTION BYTES DATA ...

Bank : 0x00
Address : 0x58004020
Size : 96 Bytes

Bank : 0x01
Address : 0x58004080
Size : 8 Bytes

PROGRAMMING OPTION BYTES AREA ...
Warning: Option Byte: boot_lock, value: 0x0, was not modified.
Warning: Option Byte: bor_lev, value: 0x0, was not modified.
Warning: Option Byte: ese, value: 0x0, was not modified.
Warning: Option Byte: pcrop1a_end, value: 0x0, was not modified.
Warning: Option Byte: pcrop1b_end, value: 0x0, was not modified.

Bank : 0x00
Address : 0x58004020
Size : 96 Bytes

Error: Downloading Option Bytes Data failed

Time elapsed during option Bytes configuration: 00:00:00.003

Program display error :(

3) I am reading the processor flags again.

$ ~/STMicroelectronics/STM32Cube/STM32CubeProgrammer/bin/STM32_Programmer_CLI -c port=SWD mode=UR -ob displ
-------------------------------------------------------------------
STM32CubeProgrammer v2.15.0
-------------------------------------------------------------------

ST-LINK SN : 56FF6C067870545131410967
ST-LINK FW : V2J29S7
Board : --
Voltage : 3.13V
SWD freq : 4000 KHz
Connect mode: Under Reset
Reset mode : Hardware reset
Device ID : 0x497
Revision ID : Rev Y
Device name : STM32WLxx
Flash size : 64 KBytes
Device type : MCU
Device CPU : Cortex-M4
BL Version : 0xC4

UPLOADING OPTION BYTES DATA ...

Bank : 0x00
Address : 0x58004020
Size : 96 Bytes

[==================================================] 100%

Bank : 0x01
Address : 0x58004080
Size : 8 Bytes

[==================================================] 100%

OPTION BYTES BANK: 0

Read Out Protection:

RDP : 0xAA (Level 0, no protection)

BOR Level:

BOR_LEV : 0x0 (BOR Level 0 reset level threshold is around 1.7 V)

User Configuration:

nBOOT0 : 0x1 (nBOOT0=1)
nBOOT1 : 0x1 ()
nSWBOOT0 : 0x1 (BOOT0 taken from PH3/BOOT0 pin)
SRAM_RST : 0x1 (SRAM1 and SRAM2 are not erased when a system reset occurs)
SRAM2_PE : 0x1 (SRAM2 parity check disable)
nRST_STOP : 0x1 (No reset generated when entering the Stop mode)
nRST_STDBY : 0x1 (No reset generated when entering the Standby mode)
nRST_SHDW : 0x1 (No reset generated when entering the Shutdown mode)
WWDG_SW : 0x1 (Software window watchdog)
IWGD_STDBY : 0x1 (Independent watchdog counter running in Standby mode)
IWDG_STOP : 0x1 (Independent watchdog counter running in Stop mode)
IWDG_SW : 0x1 (Software independent watchdog)
BOOT_LOCK : 0x0 (CPU1 CM4 Boot lock disabled)

Security Configuration Option bytes ESE:

ESE : 0x0 (Security disabled)

PCROP Protection:

PCROP1A_STRT : 0xFF (0x803FC00)
PCROP1A_END : 0x0 (0x8000000)
PCROP_RDP : 0x0 (PCROP zone is kept when RDP is decreased)
PCROP1B_STRT : 0xFF (0x803FC00)
PCROP1B_END : 0x0 (0x8000000)

Write Protection:

WRP1A_STRT : 0x0 (0x8000000)
WRP1A_END : 0x1E (0x800F000)
WRP1B_STRT : 0x2 (0x8001000)
WRP1B_END : 0x1 (0x8000800)

The "Write Protection" flags have not been changed.
What am I doing wrong?

[Aziz BRIGUI]

Hello @ami,

I apologize for the late reply, could you please try reproducing with CubeProgrammer v2.16 ? Is this a CLI only behavior or are you able to reproduce with CubeProgrammer GUI ?

To check if this is related to programming multiple option bytes at a time or is specific to WRP option bytes, could you share a trace where you only change the WRP values ?

Thanks in advance,

Aziz