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VTOR_S when TrustZone is disabled

Using the latest STM32CubeIDE, STM32CubeH5 and NUCLEO-H563ZI with TrustZone disabled.I put a breakpoint at the first instruction in startup in Reset_Handler. The debugger shows in SFRs, SCB->VTOR_S is 0x8000000 (which is my NSBOOTADD) and SCB->VTOR_N...

mete by Senior II
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STM USART bootloader issue with STM32F446

I've been using bootloader over USART3 PB10/PB11 at an STM32F446ZET6 for long time and it works reliably at least at 115200kbit.  This year we assembled several new PCB's without HW change and the bootloader stopped working. When programming the STM3...

MartenP by Associate
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Resolved! Write Flash memory over virtual Com Port (USB)

Hello, I am developing a dual processor application with a host (STM32F205xx) and a slave (Radio Module SoC). The idea is to update the wireless module's firmware from the PC via the virtual COM port.The firmware is temporarily stored in STM flash me...

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Semiory by Associate II
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  • 3 replies
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RAMECC interrupt enable register (RAMECC_IER)

I am trying to test code which has been written to deal with RAMECC errors. The MPU is STM32H753 and I am working on a Nucleo-H753ZI board.The first problem was how to simulate a RAMECC error. I found the code at https://github.com/STMicroelectronics...

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KevinG by Associate II
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STM32L0 SPI communication with DMA, Slow CS

STM32L0 SPI communication with DMA. The SPI CS line is controlled with software. It appears to stay low for about 72uS when the communication only takes about 4uS. Right before setting the DMA to roll, I set the CS to 0. Nothing else is pending for t...

Dude by Associate III
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  • 13 replies
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