Resolved! Time of erase after a tamper
Hi all,I am using MPU ref. STM32MP153F, do you say me what is the time that elapsed between a tamper is detected and the backup resister are finishing erased?And the backup SRAM?Thank you in advance
Forum Posts
HSEM between Cortex-M4&Cortex-A9
Hi everyone!I want to use a hardware semaphore to access SRAM4 memory from both Linux and M4 firmware on STM32MP157A-DK1 board. There are no problems with the M4 firmware. But for Linux I have to create a driver. There is an example in this article: ...
Regarding Stm32mp157a booting Issue
HiWe are using stm32mp157a-dk1 board.We are writing code in bare metal.Its working fine when we run in SRAM.But when we jump to DRM its hanging.
Resolved! STM32MP157 Errata 2.3.8, "eMMC boot Timeout too short", causes problems with available eMMCs.
The STM32MP157 demands a maximum time of 10 ms from reset command to boot partition data. According to JEDEC No 84-B51 the maximum time from reset command to the first data is up to 1 second (tBD):All data sheets of eMMCs that I found specify their b...
STM32MP157F-DK2 support in mainline (vanilla) U-Boot
Are there any plans to support the STM32MP157F-DK2 board in mainline (vanilla) U-Boot?It's supported in the ST fork from U-Boot, but with an older version from U-Boot from the year 2020.Could also ask this in the U-Boot mailing list.
Resolved! STM32MP157C with MII PHY not working
I am using a KSZ9021GN PHY in MII mode. Due to supply chain issues we had to resort to this PHY. (Cube MX says I can't use GMII mode). I am experiencing this apparently common issue: [ 15.650981] dwmac4_dma_reset err [ 15.652849] stm32-dwmac 580...
Resolved! How do you control the GPIO pins on an STM32MP1?
Is micro python an option?
Resolved! Dear Experts, can I use the DCMI on the STM32MP15x, with the Cortex M4, for an asyncron connected non-camera source?
I have to design a system, where a STM32MP157, with its embedded Cortex M4, communicate with other clients over a high-speed serial connection. There should be a 10 : 1 serializer for the MOSI line, and a 1 : 10 deserializer for the MISO line (from t...
How to use STM32MP157C GPU Hardware Acceleration with FFmpeg
We want to use FFmpeg for video processing (encoding, decoding, scaling, format convertion, etc) on a STM32MP157C based custom board. I understand STM32MP157C has a display controller and a Vivante GPU that supports OpenGL-ES and OpenVG to accelerate...
Resolved! STM32MP1 Boot from eMMC and switch boot source after OTP
Currently I am trying to set up the emmc boot on a stm32mp157. I have mirrored the partitions of a working SD card to the emmc with:sgdisk -e /dev/mmcblk1 sgdisk -R=/dev/mmcblk2 /dev/mmcblk1 sgdisk -G /dev/mmcblk2 dd if=/dev/mmcblk1p1 of=/dev/mmcbl...