STM32 MCUs Security

Hi I missed the confirmation email (found in spam folder) for the workshop on the 8th of october. I still like to join.Best regardsDaniel

I am still interested and would like to join the workshop.

RNG, CRC, and DMA are all peripherals on the STM32L08x AHB bus. If I try to write to CRC_INIT before enabling CRC clock in RCC then STM32-WorkBench Memory window correctly just shows zeroes. But after enabling CRC clock in RCC_AHBENR and writing to CRC_INI, then value written is shown in Memory window.But if I do the same with RNG or DMA then those peripheral registers aren't accessible for writing after enabling the peripheral in RCC.Is there some special magic that has to be applied to enable clocks to those two peripherals?

I have been able to build the STM32H7B3I_DISCO_2_Images_Loader from STM32CubeExpansion_SBSFU_V2.3.0 project targeting STM32H7B3I_DISCO board. I have also been able to build the example file and use the Ymodem protocol for sending the UserApp.sfb file to the the board.Instead of the Ymodem protocol I am trying to use an I2C master device for sending the UserApp.sfb file. Looking at the example there is a lots of dependencies on the Ymodem protocol. Is there a way I can determine the file size from the sfb so I can use that in the I2C master for determining the number of bytes that needs to be sent to the STM32H7B3 board.I am looking for a break down of the sfb data structure, with the hope that I can get information such as the file size etc.

I write an application with FreeRTOS using STM32CubeIDE. Now I want to run it as an application with SBSFU. It seemed to have a hard fault after SFU_MPU_SysCall(). My application is a bit big. Its .sfb is 300KB. But it can run correctly alone without SBSFU. I write an application without FreeRTOS using STM32CubeIDE, It works well. Any idea how to solve the problem? Thanks!

I write an application with FreeRTOS using STM32CubeIDE. Now I want to run it as an application with SBSFU. It seemed to have a hard fault after SFU_MPU_SysCall(). My application is a bit big. Its .sfb is 300KB. But it can run correctly alone without SBSFU. I write an application without FreeRTOS using STM32CubeIDE, It works well. Any idea how to solve the problem? Thanks!

I am currently trying to port SBSFU from running on STM32H7B3i-DK to run on a custom board that has a STM32H7B0 microcontroller onboard developing with Keil MDK version 5.I am using the example standalone loader project STM32H7B3I_DISCO_2_Images_Loader from ST as my base. Using the STM32H7B3i-DK I have been able to build the following 4 projects contained in STM32CubeExpansion_SBSFU_V2.3.0.More specifically I am using the STM32CubeExpansion_SBSFU_V2.3.0\Projects\STM32H7B3I-DK\Applications\2_Images_ExtFlash example.I have also been able to make changes to the STM32H7B3I_DISCO_2_Images_UserApp and load the firmware with the SBSFU loader using STM32CubeProgrammer.The problem I am having now is getting the SBSFU to run on our custom board but not getting any joy. I have tried following AN5056 Application note but not getting far for the following two reasons (1) Using IAR development tool (Linker example)(2) Not showing external flash example.I can confirm that our custom bo

Hello all. I am using stm32L071CBTx and I need to implement crypto here. I am using official crypto library(UM1924). I have managed to run the code with my hardware. Th problem I am facing here is that whenever I change plainText values, it doesn't work and go to errorhandler function. same is true with other parameters such as keys etc. What should I do ? Can I use any c/c++ library and use it in stm32 ? Thanks and Regards.

Currently when using SBSFU (1-Image in our case) one defines the application/download region.Usually this region goes up to the wireless stack install address to utilize the space most efficiently.My issue now is: What happens when due to a wireless stack update with a potentially larger size, the new SFSA address is lower, ranging into the application/download area.Shouldn't SBSFU be SFSA aware? To calculate the size of the application area with respect to SFSA?The BLE_STACK_Full didn't see size increases in its recent releases, but the light stack indeed did. Would you reccommend to decrease the size of the application space just in case a future stack update would be larger in size? But if so, how much space should be reserved?Ignoring this would potentially block future stack updates (specificially security related updates) if the stack size would increase.

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​Hello,I have missed to confirm my registration ​on webinar, could you confirm my participation?I have received the board for this webinar, thank you.​Best regards, Oubaid.​

Hi ST,I received an email this morning (21st September 2020 at 7:00) with the prerequisites for the training on the 22nd.XSBSFURequest SoftwareRequest for software successfully submitted. The approval process may take up to 48 hours. After you have been approved, you should receive a link to the requested software via email.Hopefully this is not the case as I won't be setup for the training tomorrow. Maybe try sending the emails out earlier next time?Mark Symonds

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I've already got version 1.4 installed and the instructions say use 1.3. Before I spend any significant time on preparing for this course is it ok to use 1.4?TIA

After testing Proprietary code readout protection (PCROP) features, STM32F4 got bricked.Steps to reproduce:Enable SPRMOD for PCROP usage and enable PCROP bit 3 (Flash sector 3)Send an :unprotect:force DFU commandSTM32 will be bricked by now, not booting into USB DFU mode when pulling BOOT0 pin high

Hello, does anyone know how to programmatically calculate a CRC using the same algorithm than the one provided by the CRC module of STM32L431 ? Can ST just provide a up-to-date documentation/application note providing the implement CRC algorithm on STM32L431 ?I tried to use the algorithm described in AN4187 but nevertheless it's not the good one (just try to compute the CRC example described on AN4187, you'll get 0x80 instead of 0x4c).Thanks

I have missed confirmation email to participate on webinar. I have found it today in spam folder. I am still interested in webinar.

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I just updated SBSFU to version 2.4.0 (this version finally uses SHCI_C2_Reinit() to allow the application to run the regular initialization sequence even if C2 is already started by SBSFU)SBSFU 2.4.0 now always initialized C2 (independently of it acutally being used) and calls SHCI_C2_Reinit before starting the external loader or the user application.With 2.4.0 now our Bluetooth Loader does not start successfully anymore since C2 is already booted. The Bluetooth Loader uses the __SEV() method which should allow it to use C2 even if it is already initialized - under the condition that SHCI_C2_Reinit() has been called.During investigations I realized that the call to SCHI_C2_Reinit() produces a non-zero error code. Specifically it produces 0xFE. This error code is not defined for HCI, and even if it is a custom error code, AN5289 does not give details on it.One match I could find would be FUS_STATE_NOT_RUNNING (0xFE) which is a FUS state error value (ment to be obtained via SHCI_C2_FUS_

Hi allI used STM32CryptographicV3.0.0_CM4_KEIL_otslsm1elfspf on STM32F429 for ECC encrypt and decrypt. But after use several time library function(likes ECCinitEC, SHA256_Append, etc), the system was halted. If I used AES encrypt and decrypt functions, all ok.Can anyone help me?

hello, now I am program stm32l562 for hash(sha256). I have no idea what to do. Can anybody give me some examples or ideas? Thank you very much.

hi,my type is stm32f031, i try to debug ' spi + dma + crc' mode. i have no idea about transmit crc .i just enable crc_en, and set the bit crc_next every sending 8bit value.my logic analyzer occured the only 8 bit datas, it not contains the the crc values.

I am trying to adapt an existing project that uses Keil RTX5 (RTOS2) which was written in C++ to include SBSFU functionality. So far I have got the project to build. However I am not sure about the integrity of the build as Micro-lib does not support C++ so I had to exclude it in other to get the project to build. Although the UserApp project that was part of the SBSFU example code had Micro-Lib enabled by default so not sure what impact this might have on the whole project.When I run the code I get the following error WARNING: A Reboot has been triggered by a Watchdog reset!My question has anyone been able to use any RTOS preferably the Keil RTX5 the with SBSFU and if so how did you go integrating.On enabling the RTOS it adds the following 3 function which conflicts with the default generated one in stm32h7xx_it.c./** * @brief This function handles SVCall exception. * @param None * @retval None */ void SVC_Handler(void) { }   /** * @brief This function handles PendSVC except

Listen, I have chosen the day that had a plenty of free seats! First I have chosen another day but the system replied that this day is full, then I've chosen another one which was OK. Now I am simply thrown away from the event! WTF? Who do you think I am to beleive this ********?