Resolved! Is it possible to log illegal access by the debugger in the state of RDP Level 1?
Hi, team.Question about security of the MCU.Is it possible to log illegal access by the debugger in the state of RDP Level 1? Any bits is a available for it?
STM32 MCUs Security
Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
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Resolved! Design flaw in HAL?
I am using CubeIDE 1.11.2 with a STM32F3DISCOVERY board and have created an IDE project via the integrated CubeMX GUI.I want to activate read protection via HAL_FLASHEx_OBProgram as well as the write protection for the FLASH area of my firmware (appl...
B-U585I-IOT02A gives "Error: ST-LINK error (DEV_TARGET_NOT_HALTED)" after flashing TFM example
Hello,I have a B-U585I-IOT02A board and was trying out the TFM Application example from STM32Cube_FW_U5_V1.2.0.After flashing the firmware as instructed, I could successfully run the test application. However, after re-connecting the board, I now get...
Implementation of TFM_SBSFU on STM32U585
Hi All,i have downloaded the STM32U585 firmware package from the official sources and want to implement the TFM SBSFU program code into my development board(U585-IOT2A) using STM32 Cube IDE. The user manual mentions installation not possible using Cu...
Random activation of readout protection on L4
The question below refers to L452.I encounter once in a while a random activation of the readout protection.I suspect the code that disables the watchdog operation before switching to STOP mode (as it updates the user option bytes).Can this affect th...
STM32L151 setting RDP=1 prevents update via user bootloader (Boot From Flash)
I have a user bootloader I have used across various STM32 parts over 12 years. In production RDP level 1 is enabled and this has always been fine for various STM32F1, F2, F4 based products we have in production, and for thousands of units in the fiel...
STM32WB35 - Can't write or read flash memory (J-Link)
Hello, I'm a bit stuck and I am not sure what to do so I am asking for your help.Here is the problem :I have a custom board with a STM32WB35 that was working fine for a while. But after multiple (incomplete) boot when I was soldering the battery to m...
STM32 Cryptographic Library RSA pkcs#1 v1.5 encryption unable to be decrypted with python RSA library
I'm using STM's cryptographic library on a STMf412ret6 to encrypt a 16 byte message using a 2048 bit public key generated by the Python-RSA 4.8 library, first result on google for "python rsa".I've verified the key being received by the MCU is identi...
Resolved! How can i Disable Trustzone in stm32L5?
i am enable trust zone and I make one part as secure world and another part as a non secure world using (SECWM1, SECWM2) but forget to enable Dbank as (Dbank = 1) now I couldn't make any changes in option bytesmy question is1.how can I enable dual b...
I want to know how to access data which is protected in firewall for the STM32L073
I set the start address about RAM is 0X20002000, and disable shared but execution.Than, I set a function which data is 0x20002004 to change the protected data.when system enter the function, it will reset.