Forum Posts
Resolved! I have an ST TPM and the ECC NIST P256 EK certificate is in NV memory handle 0x01c0000a. I can read the nv memory and extract the certificate - it is 1600 bytes, in DER format.
Openssl fails to convert the certificate from der to pem. Is this expected? I wrote a c program in OpenSSL to extract the public key, which seems to work, but I need to verify its correctness. Is there another tool like openssl that I can verify the ...
bitbake st-image-core error (No file to patch. skipping patch. out of hunk ignored. can't find file to patch at input line)
Hello Guys.I have tried bitbake(st-image-core) after a long time.But I can't proceed with the following error.This error is partial, and many of the same errors appear(Attach the error as text).I don't know how to fix it. I need help.can't find file ...
The PWM wave is interrupted in mass production mode
Hi:Dear friends, there is a very strange problem here. I use timer 1(STM32MP157AAC) to output PWM wave. In engineering mode, the output of PWM wave is normal, but when it comes to mass production mode, the waveform is interrupted. Here are my configu...
Resolved! Multiple Endpoints on A7 and M4
Hello,iam trying to implement more or less the same example as with the virtualUARTs with multiple Endpoints just with the rpmsg_char driver and plain endpoints without virtualUART on M4 side. Iam struggling to get multiple Endpoints to work. One is ...
STM32MP157 on custom board: Start / Stop M4 FW via remote proc (stm32_rproc). Set BOOT_MCU bit
HOLD_BOOT: After an power-on reset the BOOT_MCU is '0' and we can set thebit to '1', after an MCU reset (MCU_RST) the M4 FW start (CRun). All is fine. But after that we can't reset the BOOT_MCU bit back to '0'. The BOOT_MCU bitremains on '1' and we c...
Resolved! u-boot on custom board will not use boot_device=mmc
We have a custom board based on the stm32mp151 that shall boot from emmc. I can flash alright, but when I switch the boot pins, the boot device remains on usb. I can see from arch/arm/mach-stm32mp/cpu.c, that boot_device is set to usb, here is the de...
Resolved! DDR tuning fails Bit Deskew and Eye Training
I'm DDR tuning a custom STM32MP157F board with 4GB DDR3. All DDR tests are passing however I get the following tuning failure for Bit Deskew: Failed [Cannot Deskew lines, there is no PASS region] and Eye Training: [Cannot DQS timings, there is no PA...
Resolved! I've come across the chip ID caveat mentioned in the op-tee documentation for secure storage. Are unique chip IDs implemented in STs branch of the op-tee OS? Also is trustzone code itself stored securely at rest or only the data in secure storage? Thanks
Full text from op-tee: Important caveats Currently no OP-TEE platform is able to support retrieval of the Hardware Unique Key or Chip ID required for secure operation. For all platforms, a constant key is used, resulting in no protection against de...
STM32MPU-ecosystem V3.0.0 release is on line !
Dear STM32 MPU Community,We are please to announce that New MP1 Ecosystem V3.0.0 is available.Please check out the Release note on STM32 Wiki to get complete description of content and new features.It contains : Openstlinux-5.10-dunfell-mp1-21-03-31S...