About Istillaga

Istillaga · 2024-11-29

Hello,I am programming with the STM32U575ZIT6 microcontroller, and I am trying to update the firmware in the secure zone. However, when I try to update the firmware in the secure zone, the function ret_arm=LOADER_FLASH_DEV_NAME.EraseSector(sector_add...

Istillaga · 2024-10-29

Hello,I am using the STM32U575ZIT6 microcontroller and have created a simple TrustZone project where all applications run in the non-secure zone. However, when the program attempts to switch to the non-secure zone, it triggers a hard fault handler er...

Istillaga · 2024-10-22

Hello,I am using the SBSFU application on the U575 microcontroller and have created my own program, which is stored in the secure area and accessed via NSC. I am trying to send data via ultrawideband, but the interrupt is not triggered. I have tested...

Istillaga · 2024-10-08

Hello,I am trying to make a program in which the micro stm32u5 is stored in ram memory some data after activating the Sleep Mode.For this I have defined in the flash file the SRAM2 memory that is supposed to be in charge of this and I have saved it ...

Istillaga · 2024-10-03

Hello,I am working with SBSFU on a STM32U575 microcontroller and have written a function to check the cause of the system reset by reading the flags from the RCC registers using __HAL_RCC_GET_FLAG. However, the issue is that none of the RCC register ...

Istillaga · 2024-11-29

Hello @Jocelyn RICARD,So yo cannot modify the two slots to be written by the secure application?If it were possible to write via the secure application, what would need to be modified?

Istillaga · 2024-11-29

Hello @Jocelyn RICARD,I suppose you are referring to this part of the code in the loader: #if defined(MCUBOOT_PRIMARY_ONLY) if (sector_address < NS_IMAGE_PRIMARY_PARTITION_OFFSET) { ret_arm = SECURE_Flash_EraseSector(sector_address); ...

Istillaga · 2024-11-04

Yes, I have configured the flash byte watermark option but instead of 0x7f in SECWM2_PSTR I have set the value to 0x1

Istillaga · 2024-10-15

Hello @Jocelyn RICARD,Just following up on my previous question about the function I implemented to read the reset flags from the PWR and RCC registers. It keeps returning "unknown reset" every time I run it. Any idea why this might be happening?

Istillaga · 2024-10-09

The problem was that I was using the stm32u5xx_hal_timebase_rtc_alarm_template.c library, and a part of the code triggered a forced reset of the memory.

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Secure firmware update at secure zone with SBSFU

Hard Fault Issues While Switching to Non-Secure Zone

Interrupt Issues for UWB in SBSFU

STM32U575 SRAM data retention in Standby mode

RCC_CSR registers with SBSFU

Re: Secure firmware update at secure zone with SBSFU

Re: Secure firmware update at secure zone with SBSFU

Re: Hard Fault Issues While Switching to Non-Secure Zone

Re: RCC_CSR registers with SBSFU

Re: STM32U575 SRAM data retention in Standby mode