STM32 MPUs Products and hardware related

i need an independent processor to crunch some values to compare to our main processor's result. it is a kind of sanity check against our main processor. i have no idea what to buy...dev board, etc. it has to be small as possible. ideas?

What parts of the DDR can I reserve using device tree without upsetting U-Boot?

I've been trying to build-time reserve a 64KiB memory region anywhere between 0xC0000000 & 0xDFFFFFFF for the Cortex-M4 core using a device tree reserved-memory node. I've tried 0xC0000000, 0xD0000000 & 0xDFFF0000 but each time U-Boot fails either du...

In UM2354 Rev 1 the documentation says I2C1_SDA is PF15 and I2C1_SCL is PD12 on page 13, 15, 21, 24, and 31 but on page 25 it says I2C1_SDA is PF14 and I2C1_SCL is PF0.

Page 31 says PF0 is GPIO24/SDMMC3_D0 and on page 28 and 34 it says PF14 is ARDUINO_A2_ADC2_IN6.

glib meson error: ERROR: <ExternalProgram 'python3' is not a valid python or it is missing setuptools

I have been trying to compile an image in Yocto with a custom machine to load my own device tree, but when trying to compile I always get the same error, here is a log: Log data follows:| DEBUG: Executing shell function do_configure| gtkdocize: neith...

STM32MP1 bRIGUP watchdog trip

HI. I have a custom board that basically identical to the PDKWe Made 2 Boards for test.One starts up OKThe Other failsSection of Console belowThe section of interest is the lineINFO:  CPU 0 IT Watchdog 2 and soThe Same SDCard in both.Must be a hardwa...

Is there an example driver for the STM32MP157F-EV1 Quad SPI flash for the CM4 core?

I am trying to read/write the QuadSPI flash on the EV1 from the CM4 controller. I am able to flash and boot from the QuadSPI memory using STM32CubeProgrammer, but when I try to use QuadSPI init code ported from another ST chip (STM32H750), it hangs ...