Ask questions and find answers on STM32 microprocessors, including hardware, power, DRAM, flashing, interfacing, device tree, and peripherals.
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...
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 ...
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...
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...
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...
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 ...
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 ...
Hello,according to the STM32MP151A/D Datasheet (Table 13.) the voltage on VDD3V3_USBHS Pin can be 0 ... 3.6V when USBH not used.But on the another page of the Datasheet there is this section: "VDD3V3_USBHS and VDD3V3_USBFS are respectively the USB hi...
