About Mr_M_from_G

Mr_M_from_G · 2025-01-23

Hello,we have CubeIDE 1.8 with GCC 12.3 and for a certain project want to turn the toolchain back to GCC 10.3. We successfully installed it via Toolchain Manager and switched to it in Project - Properties -> C/C++ Build - Settings - MCUToolchain . Bu...

Mr_M_from_G · 2024-06-20

I have an issue when changing the option bit of STM32H742 to change the RDP level to 1.I read out option bit from register FLASH->OPTSR_CUR, change the RDP bits to eg 0xBB, write the result to FLASH->OPTSR_PRG and then set bit FLASH_OPTCR_OPTSTART in...

Mr_M_from_G · 2024-05-24

I implemented a ECDSA signature generation and checking on STM32H743ZI NUCLEO using STM32CubeExpansion_Crypto_V4.2.0 library example ECDSA_SignVerify.I did similiar with Python using https://pypi.org/project/ecdsa/Unfortunately signature generated by...

Mr_M_from_G · 2023-01-04

For a while there have been two Nucleo boards for STM32H743 due to a revision change of the chip (rev Y -> rev V) While NUCLEO-H743ZI held rev Y NUCLEO-H743ZI2 (note the 2 at the end) held rev VThis is stated also in the Nucleo data brief that says n...

Mr_M_from_G · 2023-01-02

Hello all,I have trouble running FDCAN on an STM32H742VG rev V when the cpu clock is above 300 MHz. I have D1CPRE = DIV1HPRE = DIV2D2PPRE1= DIV2leading to the maximum allowed APB1 peripheral clock (= fdcan_pclk) for cpu clock >= 300 MHz (75 MHz for c...

Mr_M_from_G · 2025-01-23

We fixed ourselves by updating CubeIDE to V1.17.

Mr_M_from_G · 2024-06-21

Further investigations:When my STM32H7 has RDP level 1 set and I try to read it out with STM Cube Programmer (simply click Connect, confirm the read out error message and click disconnect) a following hard reset on NRST has no effect.So it seems this...

Mr_M_from_G · 2024-06-20

Python's ecdsa function verify always does a hash internally, I needed to use verify_digest.

Mr_M_from_G · 2024-05-24

My fault, I was using one curve with keys generated for another...

Mr_M_from_G · 2024-05-24

Same issue for me.The first post shows that the op used CMOX_ECC_CURVE_SECP256K1 -> ! K1 !I have the issue that a cmox_ecdsa_verify with K1 fails although a cmox_ecdsa_sign produces the identical signature.With R1 there are no issues.In case of inter...

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Installing an earlier toolchain and changing a project to it fails to compile

STM32H7 CPU stall after RDP level change

Searching counterpart for STM32CubeExpansion_Crypto_V4.2.0 ECDSA

Which is the current STM32H743 Nucleo board?

STM32H7 FDCAN clock issue

Re: Installing an earlier toolchain and changing a project to it fails to compile

Re: STM32H7 CPU stall after RDP level change

Re: Searching counterpart for STM32CubeExpansion_Crypto_V4.2.0 ECDSA

Re: X-CUBE-CRYPTOLIB: ECDSA invalid public key format

Re: X-CUBE-CRYPTOLIB: ECDSA invalid public key format