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Hi,I'm trying to certified a product and we just fail the ETSI EMC. It appears that the USB lines are the cause of this failure. As we tried to track down the main source of this issue it appears that between 2 differents firmware the noise level was very different !! The only difference between these firmware are the optimization level (-O0 for noise and -O3 for less noisy) My product is running on a STMF446 @168 MHz with FreeRTOS. It's a usb device (VPC profile)The product has been tested extensively with the 2 different optimization without any reset or strange bug. For me it seems unreal, because usually the problem appears the other way ! After startup, the OS is started and the product is waiting for USB command (OS is always in the idle task)If I don't start the os (so waiting in the main while loop), there is no noiseIt seems that the noise is somewhat linked to the OS but I cannot see whyI don't have any more idea to find the root cause so any idea is welcome ! ps: pcb design

Hi,I'm trying to run : STSW-ST25PC001(https://www.st.com/en/embedded-software/stsw-st25pc001.html) with STM M24LR-DISCOVERY Kit.The software crashes as well on windows 7 as on windows 10. I even tried fresh installs of both windowses.The application window is visible for a split second, but then it seems to crash or to shut down immediately.The hardware is fine, as I tested it with the available linux software.Is this a known problem?Are there any further requirements for this software not mentioned in the user manual (UM2444)? Any libraries, java or other SDKs?Thanks,Peter

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What is difference between being a member of st.com and touchgfx.zendesk.com?When I click community in Zendesk, I end up at st? Why should I not just log in to st?What does Zendesk give me that ST does not?

STEMEVALIDB008 V2 is the board I am planning to use.Link: https://www.st.com/en/evaluation-tools/steval-idb008v2.html

Dear all , My project is to read ST25TA64K(NFC Forum Type 4 Tag,ISO/IEC 14443 Type A) Tag with NFC03A1 Reader and hosting MCU is STM32L452.I am able to detect the Tag by Idle command.An wakeup event is getting occured after sending a Idle command.I am able to get a UID by executing the anticollision procedure which is mentioned in the examples of CR95HF datasheet.But i am unable to get any Response to RATS command.Should i must send the RATS command to read the Tag.I am not getting response to Selection command of CC file.My task is to write some info into NDEF file and read it back.I am not using any firmware from st.com(https://www.st.com/en/embedded-software/x-cube-nfc3.html).I am wrting my own firmware to read the tag.Is i am going in a wrong way? Please give me the suggestions.Thanks in Advance.Regards,Praveen.

Hi,I'm receiving characters in polling mode on USART2 in an STM32L476VG.The USART is set up and enabled. I have the following in my receive character routine:// Get a character from the Aquaflex port // timeout with return = 0 int8_t AquaGetChar() { int8_t chr; uint32_t timeoutFlag = 0; uint32_t receivedCharFlag = 0;   // Set the receiver timeout value to 1 sec (10,000 bit periods) LL_USART_SetRxTimeout(USART2, 10000);   // Enable the receiver timeout LL_USART_EnableRxTimeout(USART2); // clear the receiver timeout flag if it's set for some reason LL_USART_ClearFlag_RTO(USART2);   while (!receivedCharFlag) { receivedCharFlag = LL_USART_IsActiveFlag_RXNE(USART2); timeoutFlag = LL_USART_IsActiveFlag_RTO(USART2); if (timeoutFlag) { // no char received - set the return value to 0; chr = 0; break; } }   // if the timeout flag is not set then we must have got a char in the buffer if (!timeoutFlag) { chr = LL_USART_ReceiveData8(USART2); }

I have to connect 10 devices based on STM32F429x MCU to PC and run them in parallel and send log data from all those STM32F429x devices to PC. Previously when using 1-2 ARM devices with PC I had been using serial port with RS3232 and USB-serial converter to transfer data from my device to PC. My PC program is written in C# using its serial port interface.The data size transferred from device to PC is 1~2 Kb per device and control signals to individual devices (few bytes). All of them need to run parallelly and will probably send data at almost same time. Timing for log data transmission depends on completion of tasks in each ARM devices but there is no big difference on completion of tasks (probably ~300 ms difference maximum). And the result is to be displayed in PC in real time.For 10 devices, I don't know if RS3232 would be problem. I do not want to go with USB expansion hub because the ports keep changing whenever PC reboots. Can I use RS-3232 and USB-serial converter with Serial e

AllI am new to the ST ecosystem.I tried Save as. That saves a 1.6K file with nothing in it.I tried clicking the link and I get a 403 error.How do I download this tar file?Thanks.

H7 FW V1.6.0 has incorrect VREFINT_CAL_ADDR, TEMPSENSOR_CAL1_ADDR and TEMPSENSOR_CAL2_ADDR definitions for H7A3.Correct defs would be#define VREFINT_CAL_ADDR ((uint16_t *)0x8fff810) #define TEMPSENSOR_CAL1_ADDR ((uint16_t *)0x8fff814) #define TEMPSENSOR_CAL2_ADDR ((uint16_t *)0x8fff818)and these should be conditional to H7A3 (and possibly others). Currently, same def with H74x/H75x are used. 

Hi, I have my own hardware that run without freeRTOS on STM32F429 with STemWin GUI.In the revision hw I'm evaluation to use UI based on Touch GFX latest ver 4.13 + CubeMX 5.5.0.Can I migrate my full application without use freeRTOS with Touch GFX UI?If the answer is no, creating 2 task should be a valid solution?task a) UI for Tocuh GFX;task b) applications with all state machine already developedIf the answer is yes (as read in the latest application note), do exist example of UI TouchGFX without freeRTOS?Thank you.Maurizio Brignoli

Hello,I am using LIN4 as slave , but I am not able to activate the identifier filter . Actually other than lin driver 0(LD0) , lin identifier filter is not getting activated.ldp->linflexlp->IFER.R = (uint16_t) (ifer | (((uint32_t)1U << 1))); /* Enable #Filter */Program is getting stuck in above statement in lin_lld.c->spc5_linflex_set_filter function. as per the reference manual, To configure an identifier filter the filter must first be activated by programming IFER[FACT] = 1.but where exactly we have to make the configuration for activating the filter.

Hi, As stated in question, accelerometer vector magnitudes are different when sensors are oriented to +X axis and - X axis. Difference is about 5 %. DT0105 only states about +X axis calibration. so I'm confused whether this difference comes from chip itself, or installation.

Using the Distribution Package for STM32MP1 I wrote a simple function to copy some file to the rootfs image and execute fine-tuning commands:my_postprocess_function() { cp -dr /home/osboxes/Documents/overlay/* ${IMAGE_ROOTFS} ln -s /lib/systemd/system/apache2.service ${IMAGE_ROOTFS}/etc/systemd/system/multi-user.target.wants/apache2.service }   ROOTFS_POSTPROCESS_COMMAND += "my_postprocess_function; "It works fine but of course don't work for files in `/boot` because it's another partition and the tree under `${IMAGE_ROOTFS}` does not contain it.So, what's the right syntax to execute any command in the `boot/` directory?

Hello,I'd like to test your X-LINUX-AI-CV OpenSTLinux image on my STM32MP157C-DK2 Discovery kit as explained in the following pagehttps://wiki.st.com/stm32mpu/wiki/X-LINUX-AI-CV_OpenSTLinux_expansion_packageDo you provide a ready to flash and use X-LINUX-AI-CV OpenSTLinux image somewhere or one have to rebuild it from scratch only?Thank you--Marco

So I just recently got an stm32f103c8t6, and I was able to connect to it with the serial pins connected to pins A8 and A9, but for whatever reason, I was not able to get it to connect with the St link v2 that I also ordered. For connections, I connected 3v pin to pin 1, as labeled in the user manual for the st link, ground to 20(power was working and the onboard power LED was on), SWIO to 7 and SWCLK to 9. I was unable to find a video of someone using the official st link online, as basically every video used a knockoff board. Is there something I'm not doing right?Update, I was able to connect with stm32cubeprogrammer, but not write. I am able to connect with these settings:SWD4000khzhot plugsoftware resetI can see the contents of the memory, but I am not able to write to them. Can someone explain what I am doing wrong?

I have been using TrueSTUDIO for about 2 months and so far when I hover over a variable in stopped code the value is reported as expected. But today I had a bout with TrueSTUDIO where many of the checked variables contained unbelievable values. However, the code written to make decisions based on these variables continued to work as expected. As if only TrueSTUDIO was "out of the loop" with respect to the actual variable values.What is going on?I switched to using STMStudio. While I can not debug using STMStudio I can see the affected variable. While in TrueSTUDIO these variables contained Unbelievable data. But in STMStudio these variables contained the expected values.Why? The variables which continued to contain values as expected in TrueSTUDIO were part of my own code directly called from main(). Most if not all the variables which contained unbelievable data were part of the USB communication code. I am not sure, but data in those variables might be traceable back to interrupt dri

I have a feeling i know the answer to this is "just give it up" but I figure before I do that, has anyone managed to get this Atollic thing working with semihosting and the J-Link? I ran up against Atollic's libnosys.lib defining _lseek and some other useless functions that conflict with rdimon. There doesn't seem to be source for libnosys so I'm ready to throw in the towel but thought I'd ask. I suspect the answer is to fuggedaboutit but throwing caution to the wind I pose the question: How to get Atollic to actually work with semihosting as opposed to the theoretical App note presentation linked here https://info.atollic.com/resources/application-notesST, please go back to subsidizing IAR and talk IAR into linux support. We're getting exactly what we paid for with this tiresome Atollic eclipsean monster. Half the time I have to restart the IDE because it loses its mind and can't stop execution.

I stupidly used the mbed application and can no longer flash the WB55 Nucleo from Atollic or command line programmer.Have I flashed the STlink device instead of the WB55?How do I resurrect the Nucleo board.ThanksIan

Hello,I have a nucleof303k8 board on which I implemented a hysteresis current control.This is done with the COMP2. I would like to know the average voltage which is connected to the inductive load in order to achieve the desired current.My idea was to connect the comparator output to a timer input capture, which could then use dma to store the switching times, which are perfect to calculate this value.However, I cannot get the comparator to trigger an input capture on the timer. The comparator is switching correctly, and I can trigger the input capture with an input pin. The init code of the comparator:void MX_COMP2_Init(void) { LL_COMP_InitTypeDef COMP_InitStruct = {0};   LL_GPIO_InitTypeDef GPIO_InitStruct = {0};   LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOA); /**COMP2 GPIO Configuration PA7 ------> COMP2_INP PA12 ------> COMP2_OUT */ GPIO_InitStruct.Pin = LL_GPIO_PIN_7; GPIO_InitStruct.Mode = LL_GPIO_MODE_ANALOG; GPIO_InitStruct.Pull = LL_GPIO_PULL

Hi,I have used the STMicro's Unicleo-GUI PC Application to test both the LSM9DS1 STMicro's HAL and STMicro's Compass Middle Ware (from X-CUBE-MEMS1) - and - the LSM6DSO-LIS2MDL combination using almost the same software. All STMicro code (HAL for the LSM9DS1, LSM6DSO & LIS2MDL) and our code worked together well to provide the STMicro's Unicleo-GUI PC Application data to display graphically.Since then I have ported all code from an STMicro's NUCLEO board (using an STM32L412 processor) to our target platform (using the same STM32L412 processor). This caused the USB interface to change from the built in USB on the STMicro's NUCLEO development board to the STMicro's ST-LINK in-circuit debugger and programmer pod.It would appear this switch has broken STMicro's Unicleo-GUI PC Application. The STMicro's Unicleo-GUI PC Application no longer finds and advertises a suitable Win10 Comm Port to connect to. Where as before the STMicro's Unicleo-GUI PC Application found the correct Win10 Comm P

I need some assistance in setting up a valid debugging environment in STM32CubeIDE using a Neucleo-64 STM32F103RB board.I have wide experience in C, C++, and C#. I have also experience in the Arduino IDE, having made several projects there. After my initial setup of a valid toolchain, I planning to develop on STM32 parts commonly available on the Blue Pill development board. I purchased a Neucleo-64 STM32F103RB because it appeared to be the closest STM32 part in the Neucleo-XX line to the Blue Pill development board. I also purchased the book Beginning STM32 and the book Mastering-STM32.pdf as reference guides to setting up an appropriate toolchain for STM32 development. My primary requirement in the toolchain is to have inline debuging capability.Each of the toolchain reference guides I purchased provided me some insight into the setup of a toolchain. There exist several toolchains that I supposed could be used, but each toolchain has its own complexities in setup. I we

Hello,In CubeMX-AI , after loading the H5 model and analyzing it, there is an option to validate on desktop without providing validation data.How the validation is done using validation input as random numbers?and How L2R is calculated?

STM32CubeMX is V5.5.0, but I suppose device definitions have different version numbers.

Hello,If various elements of the GUI I'm working on are going to be shared amongst most of the screens (footer, header, status bar,…), do you think it's a good idea to use a single TouchGFX screen and to change only the central content by means of containers?Therefore, I'd have to create various containers, say container_screen1, container_screen2,... and swap from one to another like this:container_centralZone.add(container_screen1);/* after an action*/container_centralZone.remove(container_screen1);container_centralZone.add(container_screen2);However, as we want to use as little heap as possible in the project I'm currently working on, the problem of this solution is that all containers must be created statically upon the creation of the TouchGFX main screen… None of the two solutions (screens vs containers) are perfect, but I'm currently leaning towards using the containers one and I'd like to hear your opinion on this to make a sound decision.Thanks in advance