About Mike Thompson

Mike Thompson · 2024-12-10

On an STM32MP157D-based system, I wish to condition the Linux CLOCK_REALTIME precision clock against an external clock source in a non-standard manner (ie. not using PTPD or similar).To do this, I am using a wireless radio controlled by the CM4 core ...

Mike Thompson · 2024-03-06

I'm trying to work through and understand the OpenAMP_TTY_echo example project provided by the Keil MDK pack STM32MP1xx_DFP v1.3.1.The environment I'm running on is the STM32MP157D-DK1 with a Yocto built Linux image.I can build in Keil MDK and then t...

Mike Thompson · 2023-08-19

At my company were are utilizing several STM2F767 and STM32L4P5 devices within a complex embedded product. Our firmware environment is fairly complex with an RTOS and a lot of peripherals activated and IRQ handling going on during operation.We wish t...

Mike Thompson · 2018-10-04

Due to a number of hardware constraints, I need to specify ADC3 for the phase current, bus voltage and temperature feedback for my ST Motor Control Workbench 5.2.0 project for a custom brushless control board. However, I don't see way of specifying ...

Mike Thompson · 2018-09-30

I'm making my way through getting the X-Nuclo-IHM07M1 motor controller board to work with a Nucleo-F429ZI board. The reason I'm pairing the motor controller board with the Nuclo-F429ZI is that it is the closest dev board to the actual custom hardware...

Mike Thompson · 2024-12-10

By the way, I can read the synchronized Ethernet precision timer from a Linux application using the /dev/ptp0 device using the code below. However, it would be best for my purposes if I could get the Linux system clock to use this timer for the CLOCK...

Mike Thompson · 2024-03-06

I can answer my own question.It appears the Keil MDK pack is now deprecated and the last version is STM32MP1xx_DFP version 1.3.1. This seems to be incompatible with OpenAMP drivers in the latest STM32MP1 Linux kernels.I needed to use switch to using ...

Mike Thompson · 2023-08-24

I believe I found a solution to my problem. The clue came from the following posting six years ago in these forums.https://community.st.com/t5/stm32-mcu-products/stm32f7-dual-bank-flash-erase-stall/m-p/334948The manipulation of the SCB->ITCMCR regis...

Mike Thompson · 2023-08-24

I was able to confirm it was related to the CMSIS RTOS, at least that I could program the non-executing bank without stalls after the RTOS was initialized. However, as soon as I called osKernelStart() to start the initial thread (which also included...

Mike Thompson · 2023-08-21

Looking into this deeper it appears to be related to use of the Keil RTX RTOS (via the CMSIS RTOS2 APIs) in the firmware. With dual banks configured, I can mass erase the non-executing branch without stalls all the way up to the call to osKernelStart...

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User Activity

Changing STM32MP157D Linux system CLOCK_REALTIME to use the 64-bit Ethernet precision timer

Problems with OpenAMP_TTY_echo example and creation of /dev/ttyRPMSG0 device

Bus stall on STM32F767 during mass flash erase in dual bank mode

Using ADC3 inputs for current sensing with Motor Control Workbench 5.2.0

Best way to get X-Nucleo-IHM07M1 working with Nucleo-F429ZI and Ethernet peripheral enabled?

Re: Changing STM32MP157D Linux system CLOCK_REALTIME to use the 64-bit Ethernet precision timer

Re: Problems with OpenAMP_TTY_echo example and creation of /dev/ttyRPMSG0 device

Re: Bus stall on STM32F767 during mass flash erase in dual bank mode

Re: Bus stall on STM32F767 during mass flash erase in dual bank mode

Re: Bus stall on STM32F767 during mass flash erase in dual bank mode