About NAndreadakis

NAndreadakis · 2023-11-21

Hello,I'm currently working on a project that involves using the SFBU (Secure Firmware Bootloader Update) due to the limited flash size of the MCU. I've set up an external EEPROM to store the entire firmware before the update process.I've made necess...

NAndreadakis · 2022-06-02

Hello everyone,I discovered a problem with the STM32WLE5CCU6 using the comp1 on stop2 mode.More specifically, when the debug is enabled on stop2 mode using the command HAL_DBGMCU_EnableDBGStopMode() the comp1 is working and I get all the peaks of t...

NAndreadakis · 2022-04-12

Hello,I'm trying to auto generate the the AppKey on device boot using the KMS Derive.I have enabled the LORAWAN_KMS definition as described on the AN5406 and also the configuration that needed. But the device don't generate any key and after investig...

NAndreadakis · 2022-01-18

I have two independent oscillations one in PB4 and the other on PB2.I start the first oscillation on PB4 and comp returns the oscillation picks correct.After without stop the COMP1 i change the input plus pin from PB4 to PB2. Using MODIFY_REG(COMP1->...

NAndreadakis · 2023-12-13

Hi @jmmunoz ,Is not that simple sharing the modification on sfu_low_level_flash_ext and linked files. That is not going to help you. I ended up changing from the ground up the BFU boot sequence according to the project needs. What i did is:Modified t...

NAndreadakis · 2023-11-22

Moved to new topic Re: Issue with SFBU and EEPROM Firmware Update - STMicroelectronics Community

NAndreadakis · 2023-11-22

Hello, @Jocelyn RICARD I assume you are in a dual slot setup where the sfb image was decrypted in the download slot.Yes i use the dual slot setup as the provided example, but modified to work with external eeprom.The external eeprom is only used for ...

NAndreadakis · 2023-11-21

Hello @Jocelyn RICARD ,Thanks for the reply!I have already check the full firmware that is download in the external memory. And is the correct without missing parts.Also i check the decryption when is done by mcu and is the correct one also.The authe...

NAndreadakis · 2023-11-21

Hello Jocelyn,I am experiencing a similar issue to APann with the SE_AuthenticateFW_Finish function. Specifically, after successfully writing the update SFB firmware to an external EEPROM and passing all other checks, I encounter a discrepancy during...

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Issue with SFBU and EEPROM Firmware Update

COMP1 HW or SW problem recovering from STOP2 mode

Lora AppKey Auto generate

COMP1 input pin change from PB4 to PB2 after init not working. STM32LWE5CCU6

Re: Issue with SFBU and EEPROM Firmware Update

Re: Security Engine fails to pass tag authentication of the uploaded application image.

Re: Issue with SFBU and EEPROM Firmware Update

Re: Issue with SFBU and EEPROM Firmware Update

Re: Security Engine fails to pass tag authentication of the uploaded application image.