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Hi,cleaning out my drawers and found some 8-pin IC’s wirh the marking: ST CHN NESSSN K7U826 Does someone know what these do and have a data sheet?Thanks,Bas

I would like to use LSM6DSOX with a linux board or potentially another micro controller.  What problems would i run into that using a stm32 couldn't have. I see there's a lot of code generation for stm32 chips. 

Hi all,I'm working with STM32F4 discovery board, and I'd like to know if I can use one timer with interrupt to capture multiple time.For example I'd like to use TIM16, and be able to check 4 times : 150ms, 250ms, 500ms and 1000ms is it possible? After some researches I think I have to use `CNT` value. But how can I know if the time ellasped is 500ms for example ? I've already do something like this in my while loop, it's working but I'd like to do thaht in an interrupt   // If enough time has passed (1 second), toggle LED and get new timestamp if (__HAL_TIM_GET_COUNTER(&htim16) - timer_val >= 10000) { HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_5); timer_val = __HAL_TIM_GET_COUNTER(&htim16); }     

When I double-click the STM32CubeIDE installation package（st-stm32cubeide_1.15.0_20695_20240315_1429_x86_64.exe）, this error will be reported. How can I solve this problem？

Hey everyone!I was just exploring different features of the ST MCSDK and encountered the on-the-fly startup option dedicated to fan application.Whenever I check this option, after the startup procedure, the motor accelerates to its nominal speed and then the firmware somehow takes control and run the closed loop to control the speed.I tried to eliminate this behavior and changed a lot of parameters including speed PI coefficients and it didn't workIs this behavior normal or am I missing something?Has anyone had the same problem? Could you please guide me if you have any idea?Thanks a lot!

 Hello ST Community,I am currently working on a project using an STM32 microcontroller, where I have implemented a feature to transmit the current date and time over USB when a user button is pressed. The USB transmission is handled using the CDC class.In my code, when the user button is pressed, an EXTI callback function (HAL_GPIO_EXTI_Callback) is triggered. This function reads the current time and date from the RTC and then sends two separate messages over USB using the CDC_Transmit_FS function.Here is the relevant part of my code:The problem I am encountering is that only the first message (containing the current time) is transmitted successfully. The second message (containing the current date) does not get transmitted.I suspect that this issue might be related to the state of the USB CDC interface, potentially being busy when trying to send the second message. However, I am not entirely sure how to handle this properly.Could someone please help me understand why the second m

Hi,I'm working on stm32h7 controller and also designed GUI using scroll wheel and able to scroll using touch but i need to scroll the wheel up and down using two hardware buttons.I also created the queue in model but how to scroll up and down.Thank you

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EDIT [Solution]: The register 0x0014 needs to be set to 0x04. (I put more details in the reply but it has been marked as spam for some reason). I am in process of interfacing an Attiny85 (not Arduino) with a VL6180X board (with I2C level shifter built-in).I wrote my own I2C master interface (USI) and I am able to successfully to get the VL6180X work in a single shot mode (after many hours of struggle).I spent a lot of time wild geese chasing due to VL6180X "pretending" to respond correctly to some of the register read/writes but not being able to actually read the actual distance until I moved the whole thing to battery power (adding additional capacitors to 2.8V or 3.3V supplies didn't help).One thing that lead me astray was the fact that I never bothered to check the actual contents of the 0x0062 register after setting the 0x0018 register, as I was following somewhat scarce documentation and polling the 0x004f register for a ready bit set (as per the application note): &nbs

Hello everyone. I recently purchased a Nucleo STM32H7S3L8 board, and it is giving me problems. I am using STM32CUBEIde to create a usb host and a CDC class. I am using the x-cube-tcpp module, USB_OTH_HS and the problem is that the usb host does not initialize. It stops at the USB_CoreReset function, exactly USBx->GRSTCTL is always 1, it doesn't change. Can anybody help me?

I am using a Riverdi STM32 Embedded Display RVT50HQSNWC00-B and having issues with the FDCAN bus. I am capable of writing to the TxFifo and can communicate with an external device in external loop back mode and normal mode. In external and Internal Loop Back Mode, nothing is written to the RxFifo. I am trying to use the board as a receiver not a transmitter. Are there any examples of FDCAN Rx communication with an external device using the STM32U5A9NJH6Q chip. When using CubeMX, there isn't any options for setting RxFifo elements in FDCAN configuration. Does this mean this board cannot be used a reciever, and only can transmit.

What I am trying to accomplish:I have a old dimmer rack that is used just for decoration but is also a really cool piece of film history. As a project to learn more about embedded development I wanted to make it more interesting to look at. It has nine incandescent indicator lights that I am switching over to nine white LEDs that are being driven by a nine channel LED driver (LP55231) via a STM32G0 to create interesting lighting sequences.I would like to have nine different LED lighting sequences, all pretty basic like a simple chase from one side to the other, or fading up and down all the LEDs at once, etc. I want to be able to switch between the different lighting sequences by flipping a different switch and have that lighting sequence associated with the switch repeat indefinitely until another switch is turned on or off. The switches them selves are an old school blade type switch so it would either be high or low.I am having a hard time figuring out how to structure my

Hello,I am facing an issue when I run code in stm32f407. I am using STMCubeIDE in Mcbook pro m3 chip. Furthermore, I tried with different USB-C to USB -A adapters.  I can see the stm32f407 mounted. But, Jlink could not be connected.USB-C to USB-A Adapter from ISY: 

Right now packaging of widgets is only possible through TouchGFX (by clicking export) and I would like to create a package through the command line.I found the tpkg file format extracts like a zip file, but zipping it again and renaming leads to error when importing it into TouchGFX:Error: Object reference not set to an instance of an object.I used Linux zipinfo utility to compare my zip file to the package. I tried to make them as close as possible by not adding file comments(these are optional zip attributes) and by having the file order the same. The only differences I could find was "non-MSDOS external file attributes" which is set to 0 in the tpkg file, the path separators (the tpkg file uses inconsistent path separators combining windows and linux separators ) and slightly varying compression ratios and file dates. Even a binary comparison of the files did not show large differences.I also looked up http://tpkg.github.io/ . But it appears this tool is no longer maintained and I w

Hello,TLRD: I cannot connect to a STM32H747I-DISCO board using my Mac/M3.my setup is a MBP with M3 (Apple Silincon) and  MacOS Sonoma 14.4. Installed latest release of STM32CubeProgrammer and bought a STM32H747I-DISCO dev board. Connecting through a USB-C to Micro USB cable on default port CN2 (labeled STLINK-V3E USB connector) and verified that the Jp6 Jumper is set correctly to STlk.Checked on system preferences that there is a STLink under the USB tree of MacOS.The board lights up and the connect led flashes then stays green. The powe led below stays green. Nothing shows up on the touch screen.Upon launching STM32Connector I cannot connect to the board with buttons. I've tried upgrading the firmware with the corresponding button/modal dialog.Sometimes (after plugging and unplugging the USB cable) the system detects the firmware SN (it's a long string of numbers) and gives the option to update, but then fails. In the meantime the ST_Link configuration panel shows a Ser

I am using the FDCAN module on STM32H753 to send messages. The message ID is always the same: 0x7DF. So I create a static Tx header:  static FDCAN_TxHeaderTypeDef txHeader = { .Identifier = 0x07DF, .IdType = FDCAN_STANDARD_ID, .TxFrameType = FDCAN_DATA_FRAME, .DataLength = 8, .ErrorStateIndicator = FDCAN_ESI_ACTIVE, .BitRateSwitch = FDCAN_BRS_OFF, .FDFormat = FDCAN_CLASSIC_CAN, .TxEventFifoControl = FDCAN_NO_TX_EVENTS, .MessageMarker = 0 };   and send the message with  HAL_FDCAN_AddMessageToTxFifoQ(&hfdcan1, &txHeader, txData);  Next message is sent from HAL_FDCAN_RxFifo0Callback ISR after processing the response to the previous message.This works fine for some time (~1h), then suddenly, the MCU starts sending messages with ID=0x7FF instead of 0x7DF. I see this on a scope and on the reception side, while the debug log shows that the Identifier field in txHeader is still equal to 0x7DF. Once this occurs, it stays like that for an hour

Hi, Working with the latest version (4.23.0) for some time now. Luckily for now I have the generated code tracked in git.When generating the code using TouchGFX Designer, I notice that sometimes some interactions of my custom containers are not generated. For now it is always related to the triggers of the Custom container that are used on my views (that use the custom container). The callback method (for the trigger) on the view is missing (in the ...ViewBase.cpp file): finished.setButtonClickedCallback(buttonClickedCallback);  Often only after I open the related view in the designer and then regenerate the code, this missing callback method is added to the generated code. Does anyone else have the same issue?First it was only for one specific callback, but today I see three missing callbacks..Very interested to the cause of this issue, so I can choose how to work around it until the next release- Project too big for the generator?- Too many interactions on a singl

I’m using the STM32H750B-DK board to explore FD CAN integration with TouchGFX and have encountered an unusual error. When debugging, the screen begins to tear and fails to display any of the TouchGFX visuals. However, when I compile and run the program, it encounters no errors but again fails to display anything, although it doesn’t exhibit screen tearing. When the program is run in simulation mode, it displays and acts as expected with all the TouchGFX visuals working correctly. What could be the source of this issue, and are there any potential workarounds? Included below are the main.c and screenshot of the ioc.  

Hi, We are using STM32WB5MMGH6TR pre-certified module on our product. Our certification parnter insisted that we should perform tests under EN300 328 even though the module is RF tested and there is no RF design on the product side.  We tried to use STMCubeMonitor with an STLinkV3 connected to our PCB via UART and we were able to get the transparent mode firmare to run. However the RX RF test house claimed the test has failed (while TX has passed). They shared the attached test result.I want to know:a) Is it true we need to test for EN300 328 even when using the pre-certified module? Does ST provide  EN300 328 test reports?b) What can possibly cause a fail on our hardware? This test is running with ST provided SW image ans stack so our application SW is irrelevantc) Is the test valid when there is a laptop with an STLink in the chamber? How can this test be performed , the regulation describes connecting directly to the antenna which is not accessible&nbsp

Does STM32-WB55 MCU work without USB dongle? Where can i find the quick start program for led blinking ?

Hello ST community, I am trying to send values from ADC through USB using "CDC_Transmit_FS()"The code works well but my goal is to transmit ADC values faster! (I have no option to use High Speed USB transmission mode.)The ADC values in the adcbuff are 4 digits integer and "\n" is appended to distinguish each value at the receiving side.e.g) txbuff[] = {'1', '1', '1', '1','\n','2', '2', '2', '2','\n' ... '9', '9', '9', '9','\n'};Is there any better or direct method to send ADC values through USB instead of converting int values to string?Thanks in advance!uint32_t adcbuff[sample];char txbuff[sample*5];char tempbuff[10];while(1){  HAL_ADC_Start_DMA(&hadc2,(uint32_t*)adcbuff, sample);  for(i = 0; i < sample; i++)  {   sprintf (tempbuff, "%d\n", ((adcbuff[i] * 5000) / 0xFFFF)-2000);    strcat( txbuff,tempbuff);  }       CDC_Transmit_FS( (uint8_t*)txbuff, strlen(txbuff))

Hello everyone, I'm using classical CAN bus mode on Nucleo-H755ZI dual chip (this board only support CAN FD), I chose CAN FD at Classical mode.I want to ask about hardware, may I use the external module CAN transceiver MCP2551 for classic CAN bus or I must to use module MCP2562FD of CAN FD?Note: I just need classical CAN bus on STM32 dual core, not CAN FD.

I know this might be a pretty basic thing to have issues with, but after banging my head against the wall on this for days, your snark-free assistance would be greatly appreciated.I am using a B-L072Z-LRWAN1 and trying to get timer 2 channel 1 to provide a pulse output. I cannot seem to even get the timer counting. Here is my code, please tell me what important thing I'm missing here. /* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * Copyright (c) 2024 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * **************************************************************************

Hi,I'm trying to integrate MCUBoot into an existing STM32CubeIDE project. As I wasn't sure where to start, I've found an example in STM32CubeIDE for NUCLEO-H563ZI.After generating the project, I've tried building it but I've got errors related to missing "common.h" header in most of source files under Middlewares/mbed-crypto/*. Is this an overlook in example code or am I supposed to add it?Then I've tried adding blank "common.h" file just to resolve these errors which worked but then I'm getting a lot of "undefined reference to mbedtls_*" functions. I've attached full build logs.Same questions as above, am I supposed to provide these functions or there's missing sources in example?BR,Marin

Dear All, I have been trying to burn eMMC by CubeProgrammer.Unfortunately I encounter Error: fsbl1 (0x4):invalid address 0x4400(min=0x80000)This is my layout information in tsv file.#Opt Id Name Type IP Offset Binary- 0x01 fsbl1-boot Binary none 0x0 mfgimages/tf-a-stm32mp15xc-ya151c-512d-t-serialboot.stm32- 0x03 ssbl-boot Binary none 0x0 mfgimages/u-boot-stm32mp15xc-ya151c-512d-t-trusted.stm32P 0x04 fsbl1 Binary mmc1 0x00004400 mfgimages/tf-a-stm32mp15xc-ya151c-512d-t-trusted.stm32P 0x05 fsbl2 Binary mmc1 0x00044400 mfgimages/tf-a-stm32mp15xc-ya151c-512d-t-trusted.stm32PD 0x06 ssbl Binary mmc1 0x00084400 mfgimages/u-boot-stm32mp15xc-ya151c-512d-t-trusted.stm32P 0x21 boot System mmc1 0x00284400 mfgimages/st-image-bootfs-openstlinux-eglfs-myir-ya151c-t.ext4P 0x22 vendorfs FileSystem mmc1 0x04284400 mfgimages/st-image-vendorfs-openstlinux-eglfs-myir-ya151c-t.ext4P 0x23 rootfs FileSystem mmc1 0x05284400 mfgimages/myir-image-core-openstlinux-eglfs-myir-ya151c-t.ext4P 0x24 userfs FileSy