About allard

allard · 2025-02-24

Simple question:If i'm right the serial number returned by cat /sys/firmware/devicetree/base/serial-number is the UID from BSEC. Where is the code responsible for setting this value? I've seen the function get_board_serial in u-boot but it doesnt see...

allard · 2024-10-24

My current application uses 2 USB ports, both connected to USBPHYC (STM32MP157F). The OTG one is used for programming using CubeProgrammer.My new revision requires 3 USB ports, 2 host and the programming port.According to https://community.st.com/t5/...

allard · 2024-07-09

I'm having some trouble booting my custom board containing a STM32MP157F. I'm able to program everything using STM32CubeProgrammer, but i'm not able to boot:WARNING: Firmware Image Package header check failed.WARNING: Failed to obtain reference to im...

allard · 2022-01-17

I'm trying to create a peripheral device that allows one Bluetooth central to connect to it, this part is working. Now I want the device to re-start advertisements when a central has made a connection. The advertisements should be non-connectable one...

allard · 2021-08-24

I want to readout the STSS22H, without any polling or I2C clock stretching. I want to use the following sequence:Send soft reset commandSend one shot command Release I2C bus for other processes to useWait for the maximum conversion time of the one-sh...

allard · 2025-03-21

To answer my own question:The serial number is injected into the device tree in UBoot using the serial# environment variable, see: https://github.com/STMicroelectronics/u-boot/blob/40469ba48e30e280371a057ce63f7dcb505095b7/common/fdt_support.c#L200

allard · 2025-02-25

This I understand.What i'm trying to do is replace the function that reads the UID with a function that reads my own serial number programmed into the OTP.I've looked for the function that does the reading but i've not found it. I'm using the distrib...

allard · 2024-09-19

If you open a new terminal you need to source the environment again. After that bitbake should resume without problems, if not, delete the build folder and start over.

allard · 2024-08-08

Bump

allard · 2024-07-17

Able to get rid of theCaution! Your devices Erase group is 0x300messages by settings the following in my machine: DEVICE_ALIGNMENT_SIZE:EMMC = "0x00180000" DEVICE_START_OFFSET:EMMC = "0x00180000" But the BL2 error is still there.This is the output of...

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Device serial number

2 Host and 1 device USB

BL2 image load error

BlueNRG advertise while having a connection

STSS22H No stretch one-shot timing

Re: Device serial number

Re: Device serial number

Re: STM32mp1 yocto project

Re: BL2 image load error

Re: BL2 image load error