STM32 MCUs Security

Resolved! Unable to reallocate Application at other than base address

I aim to load my application at 0x08002000 instead of 0x08000000(base address) and secure the first two sections which will be used to store CRC and other firmware update information.I use a post-build script to calculate the CRC using srecord utilit...

STM32H743 calculates different values for SPI CRC depending on SPI instance

Hello to all,I am using a STM32H743 and create a SPI master (SPI4) and a SPI slave (SPI2). I have connected the pins used (including NSS). For receiving and transmitting I use DMA in both parts, master and slave. The configuration was done with STM32...

Resolved! Use STM32H7 CRC peripheral on Flash memory (instead of Flash CRC)

The STM32H753 has 2 CRCs. One global CRC and one specific for Flash memory.I think it is possible to use the global CRC for flash memory right ? The benefit would be to use a different polynom than the one from Flash CRC.is it possible to have an ide...

Resolved! LoRa packet with CRC error treated as valid

A packet with CRC error has both SUBGHZ_IT_RX_CPLT and SUBGHZ_IT_CRC_ERROR flag set.In stm32wlxx_hal_subghz.c, this leads to both RxCpltCallback() and CRCErrorCallback() being called.https://github.com/STMicroelectronics/STM32CubeWL/blob/main/Drivers...

Resolved! possible bug in F3xx Firmware?

When I compile a simple programm, using the CRC feature I get the following warning:In file included from ../Drivers/STM32F3xx_HAL_Driver/Inc/stm32f3xx_hal_def.h:30, from ../Drivers/STM32F3xx_HAL_Driver/Inc/stm32f3xx_hal_rcc.h:29, ...

Resolved! Wrong content in chapter of STM32L4 Training

In the eLearning course 'STM32L4 Training' (community.st.com - Academy) there is an error in the content : when you open the section 'STM32L4 training: 02.4 - Hands-on CRC unit', it actually plays contents about I2C, not about CRC. Please correct thi...

STM32 Pmbus Crc Integration

Hi i have a STM32G474. I want to build a pmbus on that. The stm has a default CRC32 module.In pmbus for the pec calculation crc8 is using. Can i change my default crc32 module to crc8 for the usage on pmbus?

[SOLVED] STM32 CRC calculation unit - I know this is a very old question.

I could not get wanted result by using STM32F7 calculation unit. The code I borrowed for comparison was from WireShark CRC32 function. It was a table based function for speed. And I compared the STM32 CRC result with bitwise algorithm. I found out th...

On the STM32H (not L) I need to use a 1-wire EPROM, and I try the generic driver calls generated by the IDE (HAL_SWPMI_Receive, HAL_SWPMI_Transmit, HAL_SWPMI_MspInit, etc.) and I see no bits going out on the scope, and the transmit times out.

I can "Transmit" but the TXE flag never clears and the transmit times out. It's unclear which parts of the bus are fully automated (reset, discovery, etc.) and how much of the CRC is handled, etc. I can see nothing on a scope, but if the chip gets in...

What is CRC algorithm used in No-Stretch Get Memory Checksum of I2C bootloader

Hi,There is No-Stretch Get Memory Checksum command in I2C bootloader, Does someone know the CRC algorithm used?The UART & SPI bootloader, Host can set the CRC polynomial & CRC initial value in Get Checksum command, but there is no such description i...