Hi,
I am trying to create a trustzone application for my board, but suddenly I could no longer flash to non-secure memory. Secure memory flashing still works fine. What am I doing incorrectly?
Thank you in advance,
Michal
the failing flash (fails even if I flash template trustzone project from CubeIDE)
PS C:\Users\test> STM32_Programmer_CLI.exe -c port=SWD mode=HotPlug -d test16.bin 0x08020000 -v
-------------------------------------------------------------------
STM32CubeProgrammer v2.22.0
-------------------------------------------------------------------
ST-LINK SN : "
ST-LINK FW : V2J47S7
Board : --
Voltage : 3.28V
SWD freq : 4000 KHz
Connect mode: Hot Plug
Reset mode : Software reset
Device ID : 0x455
Revision ID : Rev Y
Device name : STM32U535/STM32U545
NVM size : 256 KBytes
Device type : MCU
Device CPU : Cortex-M33
BL Version : --
Debug in Low Power mode enabled
-------------------------------------------------------------------
Choose flashing speed for Cortex M33 series.(default speed=Reliable)
-------------------------------------------------------------------
Opening and parsing file: test16.bin
Memory Programming ...
File : test16.bin
Size : 16.00 B
Address : 0x08020000
Erasing memory corresponding to segment 0:
Erasing internal memory sector 16
Download in Progress:
██████████████████████████████████████████████████ 100%
File download complete
Time elapsed during download operation: 00:00:00.145
Verifying...
File size < 32KB legacy verify will be used
Read progress:
██████████████████████████████████████████████████ 100%
Error: Data mismatch found at address 0x08020000 (byte = 0x00 instead of 0xEF)
Time elapsed during verifying operation: 00:00:00.034
Error: Download verification failed
This is my current Trustzone setup:
STM32_Programmer_CLI.exe -c port=SWD -ob displ
-------------------------------------------------------------------
STM32CubeProgrammer v2.22.0
-------------------------------------------------------------------
ST-LINK SN : "
ST-LINK FW : V2J47S7
Board : --
Voltage : 3.28V
SWD freq : 4000 KHz
Connect mode: Normal
Reset mode : Software reset
Device ID : 0x455
Revision ID : Rev Y
Device name : STM32U535/STM32U545
NVM size : 256 KBytes
Device type : MCU
Device CPU : Cortex-M33
BL Version : --
Debug in Low Power mode enabled
UPLOADING OPTION BYTES DATA ...
Bank : 0x00
Address : 0x50022040
Size : 32 Bytes
██████████████████████████████████████████████████ 100%
Bank : 0x01
Address : 0x50022060
Size : 8 Bytes
██████████████████████████████████████████████████ 100%
Bank : 0x02
Address : 0x50022068
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:
TZEN : 0x1 (Global TrustZone security enabled)
nRST_STOP : 0x1 (No reset generated when entering Stop mode)
nRST_STDBY : 0x1 (No reset generated when entering Standby mode)
nRST_SHDW : 0x1 (No reset generated when entering the Shutdown mode)
SRAM_RST : 0x1 (SRAM1, SRAM2 and SRAM4 not erased when a system reset occurs)
IWDG_SW : 0x1 (Software independent watchdog)
IWDG_STOP : 0x1 (IWDG counter active in stop mode)
IWDG_STDBY : 0x1 (IWDG counter active in standby mode)
WWDG_SW : 0x1 (Software window watchdog)
SWAP_BANK : 0x0 (Bank 1 and bank 2 address are not swapped)
DBANK : 0x1 (Dual-bank Flash with contiguous addresses)
SRAM2_RST : 0x1 (SRAM2 is not erased when a system reset occurs)
nSWBOOT0 : 0x1 (BOOT0 taken from PH3/BOOT0 pin)
nBOOT0 : 0x1 (nBOOT0 = 1)
PA15_PUPEN : 0x1 (USB power delivery dead-battery disabled/ TDI pull-up activated)
BKPRAM_ECC : 0x1 (Backup RAM ECC check disabled)
SRAM2_ECC : 0x1 (SRAM2 ECC check disabled)
IO_VDD_HSLV : 0x0 (High-speed IO at low VDD voltage feature disabled (VDD can exceed 2.5 V))
IO_VDDIO2_HSLV: 0x0 (High-speed IO at low VDDIO2 voltage feature disabled (VDDIO2 can exceed 2.5 V))
Boot Configuration:
NSBOOTADD0 : 0x100400 (0x8020000)
NSBOOTADD1 : 0x17F200 (0xBF90000)
SECBOOTADD0 : 0x180000 (0xC000000)
BOOT_LOCK : 0x0 (Boot based on the pad/option bit configuration)
Secure Area 1:
SECWM1_PSTRT : 0x0 (0x8000000)
SECWM1_PEND : 0x1F (0x803E000)
HDP1_PEND : 0x0 (0xC001FFF)
HDP1EN : 0x0 (No HDP area 1)
Write Protection 1:
WRP1A_PSTRT : 0xF (0x801E000)
WRP1A_PEND : 0x0 (0x8000000)
UNLOCK_1A : 0x1 (WRP1A start and end pages unlocked)
WRP1B_PSTRT : 0xF (0x801E000)
WRP1B_PEND : 0x0 (0x8000000)
UNLOCK_1B : 0x1 (WRP1B start and end pages unlocked)
OPTION BYTES BANK: 1
Secure Area 2:
SECWM2_PSTRT : 0x1F (0x803E000)
SECWM2_PEND : 0x0 (0x8020000)
HDP2_PEND : 0x0 (0xC101FFF)
HDP2EN : 0x0 (No HDP area 2)
OPTION BYTES BANK: 2
Write Protection 2:
WRP2A_PSTRT : 0xF (0x803E000)
WRP2A_PEND : 0x0 (0x8020000)
UNLOCK_2A : 0x1 (WRP2A start and end pages unlocked)
WRP2B_PSTRT : 0xF (0x803E000)
WRP2B_PEND : 0x0 (0x8020000)
UNLOCK_2B : 0x1 (WRP2B start and end pages unlocked)
