STM32 MPUs

Hi I am trying to attach gdb using openocd to debug linux kernel, I am able to attach openocd.but when I start with gdb scripts https://github.com/STMicroelectronics/wiki-stm32mp-addons/blob/main/gdb-scripts/Path_env.pyGdb is not able to get symbols, after connecting, ,I have already build kernel with debug symbols and loaded on target gdb shows this: ype "apropos word" to search for commands related to "word"...Reading symbols from //home/nik/ws/boards/5_stm32mp2/STM32MPU-Ecosystem-v6.0/Developer-Package/stm32mp2-openstlinux-6.6-yocto-scarthgap-mpu-v24.11.06/sources/aarch64-ostl-linux/linux-stm32mp-6.6.48-stm32mp-r1-r0/build/vmlinux...(gdb) target extended-remote :3333Remote debugging using :33330x000000000e005bfc in ?? ()(gdb) bt#0 0x000000000e005bfc in ?? ()#1 0x000000000e011000 in ?? ()Backtrace stopped: not enough registers or memory available to unwind furtherCan someone please help here or share the detailed steps to use gdb and openocd?Thanks in advance.

Hello,   I'm investigating DDR routing and for practice training to make 6 layer board with STM32MP135 and DDR - NT5CC256M16ER-EK, the similar to STM32MP135F-DK.     Into the "DDR memory routing guidelines for STM32MP13x" everywhere recommend to use VDD_DDR polygon before Bottom layer, the same I have saw in "MB1635 Board design project files".Could someone explain, why is important to use VDD DDR polygon before bottom layer under DDR chip?Can I use GND layer here?

Moved from a previous thread. @mƎALLEmunfortunately appear next problem .CAN works grate !The display connected by MIPI DSI it goes wrong when a lot of frames in CAN interface arrive. Like the display slowed down a lot ... @xchenreading this thread , I noticed that you had a similar problem with work CAN and DSI display on STM32MP1? did you solve the problem?  

Hi,ST professor.   I am now using stm32mp135faf7 chip. I want to encrypt my TA application(optee_examples/hello_world/ta).how to get the key TA_ENC_KEY to  encrypt the hellow_world application   thanks.

On dev board STM32MP157f-dk2, I ran application in Qt, several gauges and measurements on DSI display... Next I connected CAN device to board and when a lot of frames arrive, appear a problem with tmpfs /run full ,like below:What can I do with this ?

openstLinux version: 1. en.SOURCES-stm32mp1-openstlinux-6.6-yocto-scarthgap-mpu-v24.11.062. en.SDK-x86_64-stm32mp1-openstlinux-6.6-yocto-scarthgap-mpu-v24.11.06command: $ cd tf-a-stm32mp-v2.10.5-stm32mp-r1 $ export FIP_DEPLOYDIR_ROOT=$PWD/../../FIP_artifacts $ make -f $PWD/../Makefile.sdk TF_A_DEVICETREE=stm32mp157d-openedv DEPLOYDIR=$FIP_DEPLOYDIR_ROOT/arm-trusted-firmware stm32 -j2 $ cd optee-os-stm32mp-4.0.0-stm32mp-r1 $ export FIP_DEPLOYDIR_ROOT=$PWD/../../FIP_artifacts $ make -f $PWD/../Makefile.sdk CFG_EMBED_DTB_SOURCE_FILE=stm32mp157d-openedv DEPLOYDIR=$FIP_DEPLOYDIR_ROOT/optee optee -j2 $ cd u-boot-stm32mp-v2023.10-stm32mp-r1 $ make -f $PWD/../Makefile.sdk ARCH=arm CROSS_COMPILE=arm-ostl-linux-gnueabi- DEVICE_TREE=stm32mp157d-openedv all -j2  tvs: #Opt Id Name Type IP Offset Binary - 0x01 fsbl-boot Binary none 0x00000000 arm-trusted-firmware/tf-a-stm32mp157d-openedv-optee-programmer-usb.stm32 - 0x03 fip-boot FIP none 0x00000000 fip/fip-

Hi,I am built OpenSTLinux with below configuration: uild Configuration: BB_VERSION = "2.0.0" BUILD_SYS = "x86_64-linux" NATIVELSBSTRING = "universal" TARGET_SYS = "arm-ostl-linux-gnueabi" MACHINE = "stm32mp1" DISTRO = "openstlinux-eglfs" DISTRO_VERSION = "4.0.19-snapshot-20250205" TUNE_FEATURES = "arm vfp cortexa7 neon vfpv4 thumb callconvention-hard" TARGET_FPU = "hard" DISTRO_CODENAME = "kirkstone" ACCEPT_EULA_stm32mp1 = "1" GCCVERSION = "11.%" PREFERRED_PROVIDER_virtual/kernel = "linux-stm32mp" meta-python meta-oe meta-gnome meta-initramfs meta-multimedia meta-networking meta-webserver meta-filesystems meta-perl = "HEAD:402affcc073db39f782c1ebfd718edd5f11eed4c" meta-st-stm32mp = "HEAD:b7accec80a2903c75d4129cf2b3bf6e15f5410c0" meta-qt5 = "HEAD:ae8a97f79364bed1abc297636f7933d0e35f22be" meta-st-openstlinux = "HEAD:613b158e6ee5b575e7de1251eae389c72e376043" meta = "HEAD:ab2649ef6c83f0ae7cac554a72e6bea4dcda0e99" I flashed image to STM32MP1 and works everything !Problem i

Hello,I am trying to setup CANbus on the STM32MP157f-dk2 board, but I am unable to get any CAN interface to appear. I have installed the STM32MP1 OpenSTLinux Developer-Package onto the board, and I am using an SN65HVD230 transceiver.First I tried enabling pins PB12 and PB13 for FDCAN2, and connecting the transceiver to GPIO pins 10 and 36 on the board.For device tree configuration, I generated a device tree source file with STM32CubeMX and copied the pinctrl and m_can2 bindings from the generated file into "stm32mp157f-dk2.dts" located in the kernel sources. I then compiled the device tree using "make ARCH=arm dtbs". I then copy stm32mp157f-dk2.dtb to the board.I attached the exact dts file I am using.For driver configuration, I believe the BOSCH M_CAN driver is enabled by default, so I did not change anything in Menuconfig. Although I doubled checked that the selections were correct.  The can0 interface does not appear as an available network interface:root@stm32mp1:~# ls /s

I'm using minimal device tree files to get a custom (MYIR MYC-YF135) board to boot. At the moment I'm stuck when OP-TEE should give the control to u-boot. The boot stops on error message: No serial driver found   .... F/TC:0 0 _regulator_enable:150 vdd F/TC:0 0 _regulator_enable:188 vdd refcount: 1 F/TC:0 0 _regulator_enable:150 v3v3 F/TC:0 0 _regulator_enable:188 v3v3 refcount: 1 F/TC:0 0 _regulator_enable:150 vddcore F/TC:0 0 _regulator_enable:188 vddcore refcount: 1 F/TC:0 0 regulator_core_dump:920 Dump Regulators F/TC:0 0 regulator_core_dump:921 reg name use en mV min max flags supply F/TC:0 0 regulator_core_dump:941 usb33 usb33 0 0 3300 3300 3300 0 F/TC:0 0 regulator_core_dump:941 reg18 reg18 0 1 1800 1800 1800 0 vdd F/TC:0 0 regulator_core_dump:941 reg11 reg11 0 1 1100 1100 1100 0 vdd F/TC:0 0 iod_get_voltage:115 sdmmc1_io: get volt F/TC:0 0 iod_get_state:104 sdmmc1_io: get state F/TC:0 0 regulator_core_dump:941 sdmmc1_i sdmmc1_i 1 1 3300 0 65535 0x1 vdd F/TC:

Hi, I would like to use CAN communication on my devboard : STM32MP157f-DK2. So I prepared OS, unfortunatelly I have to flash STM32MP157c-DK2 version according with problem described below: Faulty boards out of the box  So, after run OS, I edited *.dts file, by initialized &m_can1 device on PA11 and PA12 pins, which one exposed  on the board connector - CN2, and connected "MCP2542 click CAN bus transceiver" board. In OpenSTlinux userspace I try recive CAN frames by command: candump can0, and there is any problem, because when I send full frame with 8 bytes that it doesn't arrive to device. Maksimum only 5 bytes in frame arrives, like below:   What can be wrong with CAN in STM ?Please for any tips.

i am developing custom board using STM32MP157FAC1.Please review the schematic of the  custom board and verify the connections. 

HiI'm new to embedded software development and STM32 too.I'm just wanna learn and explore everything about the STM32 MPU. I have STM32MP157A-DK1 board with me. So i planned to do this one as first.I want to make a custom u-boot compilation for the STM32MP157A-DK1 board. Only using the U-boot i want to run a small application.(without OS) if anyone guide me to get in that.before this what are the possible way to connect this board with my system. I tried through USART GPIO14 tx pin no 8 and GPIO15 rx pin 10  not able to connect.(I have OS)

Hi,I'm trying to learn programming STM32MP157 with qt library using boot2qt module.I flashed microSD card using boot2qt module, prepared and employed samlpe project from qt Creator to STM32MP157. - this works fine.Now I would like to control interfaces (ec. GPIO, SPI, CAN) in STM using qt.  - there is where my knowledge ends.I think so that I should connect libraries delivered by STM  to my qt project?, So what libraries I should including to control DIDO? 

Hi,Does STM32MP235A has ONVIF compatibility when used in camera applications?Thanks,Preethi

Hi everyone! I'm here with my devkit and trying to have FDCAN working properly! I compiled the Yocto distribution for the board and I followed all the tutorials in the wiki ( https://wiki.st.com/stm32mpu/wiki/Category:CAN ) and here's what I came up with: I initialized m_can1 &m_can1 { pinctrl-names = "default", "sleep"; pinctrl-0 = <&m_can1_pins_b>; pinctrl-1 = <&m_can1_sleep_pins_b>; status = "okay"; };I used the pins_b configuration because looking at the datasheet they were the only possible exposed pins on the PI_GPIO extender (CN2) on the board (overwriting I2C5 pins for the Arduino). I also removed the pullup resistors for i2c (R166 and R167). On the kernel side I tried the loopback and seems to work fine: root@stm32mp1:~# ip link set can0 up type can bitrate 1000000 dbitrate 2000000 fd on[ 1602.982564] m_can_platform 4400e000.can can0: bitrate error 0.3%[ 1602.988958] m_can_platform 4400e000.can can0: bitrate error 0.3%[ 1602.994593] IPv6: ADDRCONF(

I have a STM32MP257F-DK board and am using the OpenSTLinux image. I want to use the USB C connector on the board, but I noticed that the USB3DR internal peripheral page says that the peripheral can be assigned to the given runtime context, but it is not supported in OpenSTLinux BSP.What would be the easiest way to enable and use the USB C connector? I am somewhat familiar with Yocto, but I am not sure what I should change.

Hello,I am trying to get my ADC using DMA working in my freertos program running on the M33 core of the stm32mp257 processor. I set up ADC1 on HPDMA3 using cube MX see config below.I am getting a few issues.1. If I used the generated code I get a runtime crash because the HAL layer was trying to access of null object hacd->DMA_Handle. I got around that issue by adding this line to HAL_ADC_MspInit()    hadc->DMA_Handle = &handle_HPDMA3_Channel11;    Not sure why this was not getting generated by MX. 2. I was getting another crash because of another reference to null variable pQueueLinkList. MX generated this in HAL_ADC_MspInit(). pQueueLinkList was defined but never initialized to anything. I needed to remove this piece of code as well.    if (HAL_DMAEx_List_SetCircularMode(&pQueueLinkList_HPDMACH11) != HAL_OK) { Error_Handler(); }     Once I got past these issues I was able to start

We have built a SBC using the 257EV as a reference in Altium. We are trying to use debug. We have created a ST14 connector to connect to a STLink3 using UART 2 as the debug serial port.Is this possible, and should we use SWD or JTAG to debug the processor.At present we are stuck at a flashing red led1. At present the DDR & GPU supplies haven't started on the PMIC, the remaining supplies are all present, as is the HSE clock.Any thoughts would be appreciated.

Hi there,I am currently working on upgrading our EV charging solution from OpenSTLinux Ecosystem v4 (Linux kernel 5.15) to Ecosystem v6 (Linux kernel 6.6).As part of the process to ensure we are on the right track, I have successfully upgraded to the minor release: OpenSTLinux release v4.1.0 (Linux 5.15-stm32mp-r2.2), and it is functioning as expected. The next step is to proceed with the upgrade to Ecosystem v6 (Linux kernel 6.6).In preparation for this, I regenerated the DTS files using STM32CubeMX_6.13.0 and loaded the existing .ioc file. While regenerating the DTS files using STM32CubeMX_6.1.3 and loading the existing .ioc file, I selected the Migrate option when prompted by the tool. Could you please confirm if this is the correct choice, or would selecting Continue be more appropriate in this case?Current Setup:I am now attempting to recompile the following components with updated versions:TF-A: v2.8-stm32mpOP-TEE: 3.19.0-stm32mpU-Boot: v2023.10-stm32mp Issue Encountere

When trying to attach to M4 upon Linux boot (autoboot=1), it fails to bind resources:Remoteproc driver attempts to probe m4 resources, but all are waiting for pinctrl@50002000 which does not appear before remoteproc probe has timed out. I can see in the logs that pinctrl is itself waiting for other suppliers to initialize.This issue appear only when M4 has been started from U-boot, which makes me thinking that something is not cleared properly when M4 detaches. Would appreciate any hints.

Hi Team We are looking for Processor or Controller which supports EtherCAT G and SPIAwaiting Your Reply ..

I am working with the STM32MP1 and using the STM32MP1 Ecosystem v6.0.0, Developer Package. have successfully enabled and configured the tamper detection feature using OP-TEE and the device tree. The tamper detection works as expected when the device is powered on. However, I am facing difficulties in detecting tamper events while the device is powered off.I want to detect tamper events even when the device is powered off. From my understanding, the TAMP (Tamper) unit and RTC can operate from the VBAT domain, allowing tamper detection in power-off states. However, I have not been able to achieve this functionality. Enabled the TAMP unit and configured the tamper pins in the device tree.stm32mp135f-dk.dts: &tamp {st,tamp-passive-nb-sample = <4>;st,tamp-passive-sample-clk-div = <16384>;st,tamp-passive-precharge = <4>; //wakeup-source;//wakeup-parent = <&exti>; /* Tamper button */tamp-button {tamper-gpios = <&gpioc 3 GPIO_PULL_UP&g

Hi,In Vbat mode (No Vdd), is it possible to pull up the tamper pins and detect tamper in High-Level.We did it in run mode. We enabled the pullups on the tamper pins which are connected to a detect switch. We detect tamper and erase backup registers when the switch released.But in VBat mode. We couldnt succedded.We are runing Passive tamper with precharge enable and trig on. Only PC3,PF10 and PI2 pins are available on the board for tamper inputs. We configure the tamp block both in Optee and TFA with same configuration.Below is our device tree for both Op-tee and TFA configuration. &tamp {    st,tamp-passive-nb-sample = <4>;    st,tamp-passive-sample-clk-div = <16384>;    st,tamp-passive-precharge = <4>;    wakeup-source;    wakeup-parent = <&exti>;    /* Tamper button */    tamp-button {        tamper-gpios = &l

Hello,We are trying to run Tamper block in VBat (Vsw) mode. When we powered off the device, Vbat pin consumes 3 - 5uA from the battery as specified in device user manual.As we understood from the documentation, the source of Vsw domain (either Vbat or VDD) is switched automatically by internal switch harware, so zero power consumtion is expected from battery when VDD is on. In our custom board, when the board is powerd-up, VDD is on, VBat pin's power consumtion from battery increases up to 50-60uA. Any recomendation about hardware or software would be very helpfull.   -The PDRON pin is pulled-up to VDD on the schematics.  - Battery is CR1216 - 3V Lithium Manganese Dioxide- Battery is connected to the Vbat pin directly, no serial diode,resistor, etc...- Battery cahrging feature is not enabled form device tree.    

Hi, I want to use the M4 core to handle all Audio DSP workI can see that MXCube allows the SAI ports to be enabled on the M4 coreBut it appears the I2S ports are not. I am Missing something hereUnfortunately the Pins I need to be  the PZ0-1-2-3 as PCB is doneElse If Its only possible to use the I2S from the Linux A7 then is it even possible to transfer audio data between the cores?Thanks