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How consistent is the LSM6 sampling clock? I didn't see any details regarding clock variation at different temperatures, etc in the manual. However, I may have missed it. 

/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file can.c * @brief This file provides code for the configuration * of the CAN instances. ****************************************************************************** * @attention * * Copyright (c) 2023 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. * ****************************************************************************** */ /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "can.h" #include "main.h" #include "usart.h" CAN_HandleTypeDef hcan2; static CAN_TxHeaderTypeDef TxHeader; static CAN_RxHeaderTypeDef RxHeader; static uint8_t TxData[8]; static uint8_t RxData[8]; static uint32_t T

I just saw this. It's from STM32MP157 discovery board.Notice that DQ9 is attached to E3.This schematic is the RAM DDR memory: They are connected correctly. The index of DQU2 is the 10:th index of DQ, also DQ10. But the naming of the net labels seems to be wrong. This picture is the footprint of the RAM DDR memory. But here is where things getting werid.Noticie that E3 was DDR_DQ9, but it was actually DQ0 according to the datasheet. The same for DDR_DQ5, it was DQ10.Here is the microprocessor STM32MP157. Notice that they are not correctly indexed. My question is: Why? Why will this work according to the schematic designers?This schematic is the symbol of the STM32MP157 processor. 

Hi all,I recently got a Nucleo STM32H563ZI board to start doing development with the STM32H5x family of microcontrollers but I'm having issues trying to setup a debug session in VSCode. I've download the STM32 OpenOCD version and compiled it as it seems to have support for STM32h5x. Has anyone successfully launched a debug session in VSCode? I'm using Cortex-Debug and have tried different configurations with openocd but no luck. Thanks!martin

I am currently experiencing an issue with my STM32H7B3I-DK board. The BOOT0 pin on the board is not externally accessible, which has been causing some difficulties to me.Additionally, I’ve noticed a low and unstable voltage to the board. When monitoring the target voltage in CubeProgrammer, it fluctuates between 0V, 0.22V, and 0.35V what caused I think the faulty red led LD7 to lit up and the green led LD5 to lit poorly. This instability could potentially be contributing to the issues I’m facing, as I am no longer able to connect to the board through ST-LINK, I get No STM32 Target Found.   The issue suddenly occurred while I was wiring some cables to the board. I am unsure whether a short circuit might have occurred during this process or due to a misconfiguration from the uploaded code.In an attempt to resolve the issue, I tried to strap the NRST pin to ground and perform full chip erase in CubeProgrammer but I couldn't manage to achieve the perfect timing. However, these ef

Hi all,I got my hands on a quadrature encoder for the first time, and I am trying to interface it with my STM32H755 Nucleo board through the timer in encoder mode. The issue is that the interrupt is getting triggered (in the "HAL_TIM_IC_CaptureCallback" function), but the timer counter is not incrementing. Any potential leads? 

Hello. I have plans to implement a motor encoder interface circuit using this micro controller. According to its datasheet, the timer implementation considers TIM1 ~ TIM4. My question is: which pins can I assign to implement a motor encoder circuit for high resolution (1024PPR) encoder? The encoder has 2 output pins (A and -A).   Thank you in advance.  

Dear ST Community,I'm currently working on STM32F091RC using STM32Cube IDE, and I've encountered an issue with handling UART receive interrupts for variable-length data. Currently, I have set a fixed length of 5 bytes for the data, and the UART communication is functioning properly. However, I now require the flexibility to receive data of varying lengths, such as 1 byte, 5 bytes, and so on.Despite my attempts to modify the code to accommodate variable-length data reception, the UART doesn't seem to work reliably. I believe I might be missing something crucial in my implementation.Could someone please provide guidance, code snippets, or any possible solutions to efficiently handle variable-length UART receive interrupts for the STM32F091RC?Any help or insights would be greatly appreciated.Thank you,Santhosh

Hello ST community,I'm currently working on a circuit utilizing an ATS240C-E Crystal with a 22pF capacitor for an STM32 microcontroller. I'm curious about the necessity and implications of including a Rext resistor in the output of the crystal oscillator. Could anyone shed light on whether the Rext resistor is necessary for STM32 microcontrollers? Furthermore, I'd like to understand how its presence or absence affects the performance, stability, and functionality of the oscillator, particularly in noisy and EMI conditions.If anyone has insights or experiences to share regarding this matter, I would greatly appreciate it.Thank you in advance for your assistance.

HiIs there any info available regarding source sink current of analog comparators on the STM32G4 series.The datasheet doesn't contain any info on this although the drive current of Opamps is mentioned as 500uA.TIA

In the Datasheet it says:"The VREF+ pin is double-bonded with VDDA on some packages. In these packages theinternal voltage reference buffer is not available."Does this implicitly mean all packages which do not explicitly have a VREF+ pin can not use this peripheral or are there some inbetweens (which ones) which can use internal references, just not external ones?I'm especially surprised that even the high pin count WLCSP variant does not have such a pinout, so the smallest package to even use that (imo very useful) feature would be a "huge" 7x7mm BGA Chip. 

Some STM32H7 MCUs have I2S capability on SPI6, but the HAL does not define "SPI_SPI6I2S_SUPPORT" for all of them. The ones with the missing define gets the prescaler computed wrong if the clock for SPI123 and SPI6 is different. Has HAL support:H7B3H7B0H7A3 Has capability but missing HAL support:H735H733H730H725H723 Manually adding the define fixes the issue, the prescaler is calculated correctly and the expected clock frequency is sent to the I2S pins.

Hello, i use STM32CubeProgrammer for flashing devices with .hex files, but after the update from version v2.11.0 to latest v2.15.0 the downloading doesn't work (it also doesn't work with 2.14.0). The .bin download works fine in both versions.  The MCU that I use is STM32G483.The message from log is:12:02:17:022 : erasing sector 0027 @: 0x0800d800 done12:02:17:022 : sending a page erase request @: 0x0800e00012:02:17:039 : erasing sector 0028 @: 0x0800e000 done12:02:17:039 : erase: 0675ms12:02:17:039 : Erasing Segment <1> Address <0x0801DFE0> Size <2>Bytes12:02:17:039 : Erasing memory corresponding to segment 1:12:02:17:039 : Error: Sector size: 0x00000002 Bytes is out of range12:02:17:070 : Error: failed to erase memoryThe problem is with two last bytes in the hex file (these bytes store the firmware version). If they are at the end of the memory (and a different flash sector than previous bytes) the downloading fails in new version of Programmer. 

Hello.I am developing a system using STM32H7A3LIH6Q with CubeIDE.I use the SDRAM with IS42S16800J-6BLI,I am trying to use the BSP in the firmware package STM32Cude FW_H7 V1.10.0 as it is the same as STM32H7B3I-DK.I have a question here.In stm32h7b3i_discovery_sdram.h of Driver-BSP-STM32H7B3I-DK in STM32Cude FW_H7 V1.10.0, it is defined with SDRAM_DEVICE_SIZE 0x800000.Is there a reason why it should be 0x1000000 since the "IS42S16800J-6BLI" is 128Mbits? 

i tried to configure clock by writing code in its appropriate registers...following is the clock configuration function void SystemClockConfig(void){    #define PLLN  16 //using external clock sourceRCC->CR |= RCC_CR_HSEON;while(!(RCC->CR & RCC_CR_HSERDY));//enabling power interfaceRCC->APBENR1 |= RCC_APBENR1_PWREN;//configuring voltage regulator to default 01PWR->CR1 |= (0x1UL << PWR_CR1_VOS_Pos);PWR->CR1 &= ~(0x2UL << PWR_CR1_VOS_Pos);//                  //configure flash prefetch and latencyFLASH->ACR |= (FLASH_ACR_ICEN | FLASH_ACR_PRFTEN | FLASH_ACR_LATENCY_1);//configuring prescalers for main clock and peripheral clocksRCC->CFGR |= (RCC_CFGR_HPRE_0 | RCC_CFGR_PPRE_0);//configure main PLL; PLLM, PLLN, PLLRRCC->PLLCFGR |= ((PLLN<<8) | (RCC_PLLCFGR_PLLSRC));//      RCC->PLLCFGR &= ~RCC_PLLCFGR_PLLM;RCC->PLLCFGR |= RCC_PLLCFGR_PLLRE

when i create this program everything is ok until step7. however i cant pass step 7and window is below.

HiCurrently we are developing a project based on the STM32H723.The project is a platform for different derivates.It uses as well Azure RTOS.We used STM32CubeMX to generate reference code.But at the end we modified the generated code and organized ourself the project and folder structure.It is well integrated in the STM32CubeIDE.Until now we had no graphical interface. But for a new project we need this.I have already good experience with TouchGFX itself on a NUCLEO Board (STM32H723) with a SPI interface to the display.But not with the integration to another project.Right now we are trying to include somehow a simple TouchGFX project into our existing project.There is nice explication on the web how to integrate the existing TouchGFX projecthttps://support.touchgfx.com/docs/development/ui-development/working-with-touchgfx/using-ides-with-touchgfxI followed the instructions. But I get an error when compiling the project.I included the necessary files into the project and added also the i

Need to replace this. I'm assuming the one on the left is toast just from a visual inspection. Can someone tell me which specific version I need to get? I'm not sure if the "EZ605" designator means anything. Any suggestions are appreciated. Thanks!  

Hello,A few days ago I compiled on my STM32l562E-DK board the TFM application (which includes TFM_SBSFU_Boot, TFM_Loader, TFM_Appli) of STM32Cube_FW_L5_V1.5.0 package. After that I experienced some errors. The first one was DEV_TARGET_NOT_HALTED which I managed to solve by doing a boot from RSS. Then, I tried debugging the example project “GPIO_IOToggle_TrustZone_Secure” and I got the second error: “No source available for <signal handler called>() at 0xfffffffe” and “failed to execute MI command. Error message from debugger back end: Cannot access memory at ...“.This happens with any TrustZone enabled project I try to debug.I would appreciate any tip or assistance. Than you in advance! 

Hello, in my project, I will be communicating via CAN with an STM32H735_G and a cluster of car components. I have a sequence of test examples. For exemple , if I send a specific frame to activate a feature within the car cluster, I aim to manage these test sequences using TouchGFX. For example, if I press Button 1 on the TouchGFX interface, a communication session can initiate between the cluster and the STM32 and first test begin if i press in other button second test done . can i do this with touch gfx

I am starting my journey with STM32 and want to develop a GUI based project using TouchGFX Designer then later on add user code to it from STM32CubeIDE.I have created a simple project which displays the text 'Hello World' in the centre of the LCD screen using TouchGFX Designer and targeted it to STM32F469I-DISCO. This project loads and runs absolutely fine on the target from TouchGFX Designer.Without doing anything else I then opened the '.cproject' in the STM32CubeIDE folder that was generated by TouchGFX Designer. I built the project and loaded the .elf file to the target using STM32CubeProgrammer. This loads but gives an error of data mismatch at 0x90000000 when programming, this may be the cause of the problem..Having examined the .map file I think that this address is in QSPI flash and is used to store the text fonts etc. so it would make sense that if this can't be programmed the text won't be rendered on the screen.I can't see a way in STM32CubeProgrammer to control external QSP

Hello community,I'm looking for some feedback on how to optimize the ADC peripheral when using a handful of single-ended channels.I have an STM32H735G-DK and have 4 NTC3950 type thermistors connected to 4 of the Analog pins from the Arduino headers, attached in the R2 position of a voltage divider.NamePort/PinADC NumberADC ChannelR1 Resistancetemp0PC0ADC3Channel 10487100temp1PH2ADC3Channel 13463500temp2PC2_CADC3Channel 0468800temp3PC3_CADC3Channel 1468200The goal is to gather the 4 analog values and convert them to temperatures - the readings need to be accurate to the correct temperature and consistently the correct temperature (I would very much prefer to not have much of a software filter to smooth the readings).Using CubeMX, the peripheral is being initialized as follows:static void MX_ADC3_Init(void) { /* USER CODE BEGIN ADC3_Init 0 */ /* USER CODE END ADC3_Init 0 */ ADC_ChannelConfTypeDef sConfig = {0}; /* USER CODE BEGIN ADC3_Init 1 */ /* USER CODE END ADC3_Init 1 */ /*

Using the following version of Cube: Version: 1.14.1Build: 20064_20240111_1413 (UTC) We first changed the repository location for downloading packages. Then we manually downloaded the U5 package (why is this not available from the package manager?) and installed it. Later we used the package manager to download the F4 support package. The problem we have is that no matter what processor we select for a new project Cube insists on using the U5 package, thus we get errors with all projects we attempt to start on F4 processors. How do you tell Cube which firmware package to use in your project, or how do you change this for existing projects?

Here is a (possibly incomplete) list of threads affected by this CubeMX issue:https://community.st.com/s/question/0D50X0000BVnBhASQV/bug-report-dma-and-adc-initialization-order-changed-in-stm32f4-hal-v1241-causing-incorrect-adc-operationhttps://community.st.com/s/feed/0D50X0000BZFWRISQ5https://community.st.com/s/question/0D50X0000BbKaA5SQK/haluarttransmitdma-doesnthttps://community.st.com/s/question/0D50X0000BbMcnpSQC/dma-adc-doesnt-workhttps://community.st.com/s/question/0D50X0000BWqGdtSQF/haladcstartdma-init-msp-bughttps://community.st.com/s/question/0D50X0000BcS7tSSQS/stmcubeide-110-cubemx-540-switch-initialization-orderhttps://community.st.com/s/question/0D50X0000BVnBhASQV/bug-report-dma-and-adc-initialization-order-changed-in-stm32f4-hal-v1241-causing-incorrect-adc-operationhttps://community.st.com/s/question/0D50X0000Bfs7MvSQI/stm32f3-adc-with-dma-bughttps://community.st.com/s/question/0D50X0000Bh6PntSQE/bug-mxdmainit-wrongly-placed-by-code-generator-haluarttransmitdma-does-not-w

Hi, I hope finding an answer this is my first time asking you.  So, I'm trying to build a CLASS_D AMPLIFIER with codec (STA309A). This codec has 8 input channels for serial AUDIO and I want to play more channels for the codec's inputs but the I2S can only transmit the data in stereo mode.