STM32 MPUs Products and hardware related
Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
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Resolved! DK1: how to power off the board
Hi.Is there a way to properly power off the board without using the console's poweroff command?Tried to press wake-up button for 10 seconds with no effect...Regards,Vlad.
Resolved! LAN8720 Custom SOM Issue
We have custom SOM which has been designed with STM32MP157C.We are using the OpenSTLinux 3.0.0 as of now as the distribution running on it.In case of LAN PHY interfacing we are using LAN8720.There is a strange behavior , upon I can see the below mess...
Resolved! ADC sampling from ANA0/ANA1 via M4
Hi,I have some doubts about how I could sample from the ANA0/ANA1 pins of an STM32MP1 CPU from inside the M4 firmware via HAL. I would like to programmatically switch between these two pins.Sampling from ADC_CHANNEL_0 seems to work, so I guess it is ...
Customize U-boot script to modify u-boot process
I am trying to customize the boot script which is used to boot my STM32MP157 Avenger96 board. I want to include some u-boot variables and alter the boot process.Current boot script:if test -n "${distro_bootpart}"; then setenv partition "${distro_bo...
STM32NP157D Discovery Kit Getting Started: Kernel rebuild example hangs: ERROR: reserving fdt memory region failed (addr=d4000000 size=4000000) Any ideas?
I am evaluating the STM32NP157D Discovery Kit.In the Getting Started Section I have successfully done the gtk_hello_world step.The next step successfully rebuilds the kernel. After pushing it on the board I do the reboot and get the following Error m...
How can the MP1 M4 Core be woken up by an LPTimer in STOP mode?
I have built a test program from the two examples PWR_STOP_CoPro and LPTIM_PulseCounter. With the LPTIM_PulseCounter I changed the CounterSource to LPTIM_COUNTERSOURCE_INTERNAL and adjusted the priority HAL_NVIC_SetPriority (LPTIM2_IRQn, 0, 0);Both p...
DK1 board consumes 45ma in complete power off state!
Hi.My STM32MP157A-DK1 board while in power off state without any connections consumes 45 ma of current.How could i reduce such a big amount?Could it be ST-LINK power drain, or is it STUSB1600?What could i do to reduce the current to its minimum ...
Variable Clock speed in Linux on STM32mp157c?
It isn't clear to me from this article (https://wiki.st.com/stm32mpu/wiki/Clock_device_tree_configuration_-_Bootloader_specific#cite_note-st.2Cstm32mp1-rcc.txt-1) if I can set operating points for my stm32mp157c part. If not am I stuck setting PLL1 ...
