STM32 MCUs

I have watched ST's offical YouTube series about bootloder and  I found it very clear and helpful.That series: https://www.youtube.com/playlist?list=PLM7yYW7w7MWms-Um-dHxbftXRUFT74u9lI was able to understand the general workflow and main ideas. However, I still feel that I have some missing points, especially the pratical and low-level details.I am a junior embedded software developer and I would like to properly learn bootloder and OTA update concepts from the ground up.That's my questions are here : 1) From which topics should a junior embedded developer start in order to understand bootloader and OTA mechanisms correctly ?2) What fundemental topics should I focus on first ?3) I have several discovery and nucleo boards, and my goal is to implement a very simple bootloader or OTA demo on one of them. Any guidance, recommended learning path or simple example project suggestions would be greatly appreciated.Thank you in advance.

Hi everyone, I’m asking for your help with accessing my SD card. I’m running into an issue with the STM32N6DK750 Discovery Kit and would really appreciate some advice. I’m trying to write data to an SD card using FileX and ThreadX. Everything compiles and debugs fine, but nothing actually gets written to the card. I also tried the FX_MultipleAccess example provided by ST, but it doesn’t compile. I’ve tried fixing several compilation errors, but some declarations are missing, like byte_pool in app_filex.c. I’m not sure what’s causing the issue, and I’m wondering if I might have missed an important step or misconfigured something.

Hi! I am working on creating a new build system for my for a software platform using CMake to help with management of different targets and toolchains. I have an .ioc file that is currently in use with the existing build system based on CubeIDE that contains all middleware (FreeRTOS, LwIP, TouchGFX) additions and configurations, so I am not changing anything. I am trying to make the build as modular as possible so I am trying to link the stm32cubemx and touchgfx CMake targets directly. I am using build presets to manage configuration. Creating the build system works fine, but when I try to run the build I get compilation errors because the TouchGFX related files can't find the user constants defined in CubeMX for TouchGFX, as shown below: This can be expected because these symbols are created in defines on main.h and the TouchGFX file being referred there does not include main.h. I could add it manually, but I'd like to try to get the system to work directly from autogen

Hi everyone,I'm working on a power conversion project using the STEVAL-7BIDIRCB reference design.The firmware uses a specific static library: DPC_AverageCurrentCtrl_IAR.a. As the name suggests, it was compiled with IAR EWARM. However, I would like to use VS Code and CMake for my development environment instead of the IAR IDE.A few questions:Is this specific library compatible with the arm-none-eabi-gcc linker in a CMake setup, or will I face ABI/runtime issues (especially regarding FPU and math functions)?If I use the IAR Build Tools (compiler/linker) through CMake in VS Code, will it work seamlessly with this .a file?Is there a GCC version of this library available for the STEVAL-7BIDIRCB, or are the sources available somewhere to recompile it for GCC?The control loop is obviously critical for this board, so I want to make sure I don't introduce any instability by mixing toolchains.Thanks for your help!

I have been trying to download STM32CubeIDE for Windows, but the download never starts. Someone can help me with this issue?

Hi,When opening a CubeMX-generated project in VS Code for the first time, a popup appears that—according to ST’s tutorial—you’re supposed to confirm by selecting “Yes”.Unfortunately, the popup disappeared after a few seconds before I could click it. I’ve tried reopening both VS Code and the project, but it hasn’t appeared again.How can I bring this popup back, or trigger the same setup manually?Thank you  

 

[VERSION]: 6.2.1[TOOL]: Motor Profiler in Motor Pilot V1.2.5[DETAILS]:Motor Profiler gets stuck while profiling at "Profiling % 28".Hardware used is the inverter-board B-G431B-ESC1.[EXPECTED BEHAVIOR]: I expect the motor profiler to either finish the process or abort with an error so that I can fix any existing issues.[HOW TO REPRODUCE]: Motor is soldered to the inverter-board, power supply connected and set up to deliver the correct voltage and enough current (12V, 30A). Motor Profiler is started and connects successfully. The required motor parameters are entered accordingly. The profiling is started. At 7%, the motor twitches once, and at 21% the motor hums for half a second. Maximum observed current is around 2.5A until then. Then the process gets stuck at 28% until the notification pops up that the measurement takes too long. The board pulls standby current.

is there a way to search for which stm32h7 mcus have integrated HS usb phy?the mcu finder product selector doesn't have such filter, is there an app note, a product brief or anything like that?How is one supposed to find such a controller? (besides manually checking all of them)Sometimes this is the main and only selection criteria. I didn't even know that such a feature even exists.I just stumbled uppon when i saw that the stmlink v3 has high speed usb but doesn't use an external usb phy. 

Hi,I'm developing a camera interfacing application. I've used GPDMA in linear-circular mode. But, now I have to handle larger resolution(640x480). Is there any application example from where I can start configuring DMA in CubeMx?

Hello,I had windows 10 and the CubeProgrammer was without problems.Now, on this PC with new windows 11 when I try to open file (hex, srec) in Erase & Programming  with Browse then a new windows is opening and after I can't choice my file and STM32CubeProgrmmer is closed.I tryed in administrator excecution but the problem is always.I looked this problem on all the windows with open file. Could you help me , please?Best regards  

Hello,I'm using uSD.I observe that in the sd_diskio.c driver SD_TIMEOUT is 30sec, is'nt very long ?If uSD works normally is not sufficient just 1sec ? Best regards. 

Hi, I'm designing the board for STM32H755IIK6. My power supply plan is SMPS + LDO, since I want to use 480MHz speed.  I wonder if there are better recommendations about 2.2uF VCAP placement. There are three VCAP pins, but two 2.2uF capacitors are instructed to use in reference design. On the other hand, capacitors should be placed near VCAP pins. So how to place two capacitors near three pins A4, A14 and R13? It looks like MB1520 does not have capacitor near A14. Is that correct implementation?

When I write code, should I keep the microcontroller on, or turn it off and only turn it on when I want to test the code?

Hi,we are using the STM32H7R7I8T6 MCU with an Infineon S70KL1282 HyperRAM Chip attached on XSPI1 and configured via CubeMX, we are looking for an example for the correct timing/parameters to use the RAM Chip in memory mapped mode as Graphics RAM.Our current config makes makes reading and writing possible but the memory contains garbarge data.We are repeatedly trying to write the string "1234567890" into the external RAM but we get back the following:The current config is built from various other examples we could find like this one: https://github.com/STMicroelectronics/STM32CubeH7/blob/master/Projects/STM32H735G-DK/Examples/OSPI/OSPI_HyperRAM_MemoryMapped/Src/main.c but the parameters do not match exactly. Our current code looks like this:/** * @brief XSPI1 Initialization Function * @PAram None * @retval None */ static void MX_XSPI1_Init(void) { /* USER CODE BEGIN XSPI1_Init 0 */ /* USER CODE END XSPI1_Init 0 */ XSPIM_CfgTypeDef sXspiManagerCfg = {0}

Why is it that when I set the clock frequency of the STM32 to a high frequency (180 MHz), the code will crash, but when I set it to a low frequency (72 MHz), the code can run normally? 

Hi, I know that currently STM32WB0 is the only family of BLE MCU that currently supports BLE PAwR, but this MCU is very limited in terms of on-board peripherals, RAM and other features. The STM32WBA series looks like a promising candidate for one of our upcoming projects (industrial sensor nodes application), but unfortunately it seems it does not support PAwR. So I wanted clarity on if there is any plan to support PAwR in the near future on STM32WBA chips? Best Regards,MCM

Following this thread Solved: USBPD EPR Source - STMicroelectronics Community Do you have a similar guide on how to do EPR as a Sink?

Hello ST Support Team,I am reporting a regression issue with the latest STM32F0xx Device Family Pack (DFP) version 3.1.1 when used with Keil MDK 5.43a.Problem Description:Installation Issue: The DFP 3.1.1 often fails to install via the Pack Installer, showing validation errors or failing to resolve dependencies.Missing Registers: Even when successfully installed, the System Viewer in Debug mode is empty. Peripheral registers (GPIO, RCC, etc.) do not appear for the STM32F030 series.Environment:IDE: Keil uVision v5.43a.0Device: STM32F030xx (all variants)Pack: Keil::STM32F0xx_DFP.3.1.1OS: Windows 11Observations:The issue seems to be related to the new SVD (System View Description) file structure or pathing in the 3.x.x branch.Manually pointing to an older SVD file (from DFP v2.2.3) restores the register visibility.The "System Viewer" list in the "Peripherals" menu remains blank when using the default settings of the 3.1.1 pack.Request:Please verify the compatibility of the SVD files in th

I have a question about writing to the STM32F410's FLASH.I'm creating a program to write data received via USART to FLASH, but it's not working correctly.The writing to FLASH itself is happening, but the written data differs from what I expect.This different written data contains a large number of “0xAA” values that are not present in the original data.Do you know what might be causing this phenomenon?void FLASH_UNLOCK(){ while ((FLASH->SR & FLASH_SR_BSY) != 0){ } if ((FLASH->CR & FLASH_CR_LOCK) != 0) { FLASH->KEYR = 0x45670123; FLASH->KEYR = 0xCDEF89AB; } } void FLASH_DELETE(uint32_t address){ while ((FLASH->SR & FLASH_SR_BSY) != 0){ } FLASH->CR |= FLASH_CR_SER; FLASH->CR |= (FLASH_CR_SNB & 0x8); FLASH->CR |= FLASH_CR_STRT; while ((FLASH->SR & FLASH_SR_BSY) != 0){ } if ((FLASH->SR & FLASH_SR_EOP) != 0) { FLASH->SR |= FLASH_SR_EOP; } else { } FLASH->CR &= ~FLASH_CR_SER; } void FLASH_Write

I’m a beginner with TouchGFX, and I’m wondering whether it’s possible to make touch input behave the same way it does on mobile smartphones. Specifically, before a drag event is detected, the finger must move a certain number of pixels.What I’d like is this: when a press event is first detected, you check whether the user has moved their finger at least 10 pixels, and only then do you start moving the screen. However, once that threshold is reached, the screen should move starting from 1 pixel. When the user releases their finger, a release event occurs and everything is reset, so that after the next press event, the finger must again move 10 pixels before a drag event can occur.Is it possible to implement this behavior? I tried using setDragThreshold, but then the entire screen scrolls by the number of pixels specified as the threshold. Is it possible to change setDragThreshold dynamically in the view?

Hello,    Developing a firmware to update the application via Bootloader over USART2. But, the STM32U5G9BJYXQ is not responding on 0x7F. The MCU is successfully starts from the NSBOOTADD1(0x0bf90000) on driving the BOOT0 pin high while deasserting the reset. The USB-USART tool is sending a proper 0x7F, verified by oscilloscope. Please point to what I might be missing.   

Hello,I use STM32 Motor Control  X-CUBE-MCSDK. I currently am on this stage - please see screenshot attached. For my project, I use two gimbal Sparkfun 3-phase BLDC electromotors with the encoders AS5048A. Right now, I have just one motor, see the screenshot. Could someone please clarify how to add the second motor? I also need to add two brushless 3-phase motor-drivers https://www.sparkfun.com/sparkfun-brushless-motor-driver-3-phase-tmc6300.html#content-documentation and one power board (9V 5A step down voltage regulator) https://www.pololu.com/product/5576 instead of the X-NUCLEO-IHM11M1 power board. Could you please clarify how to add them? Thank you.      

I'm building a little tester for 6821 PIA using a STM32F103.I need to be able to write to the data bus of the PIA, and also read from it.  (6821 has 4 registers that are addressed using 2-bits input RS0,RS1).So 8 GPIO pins for the databus.  And I use 3 more GPIO pins for RS0,RS1 and R/W pin.For writing to the PIA:I set the GPIO pins to output,  set the output pins actual data and then make R/W low for writing.For read from the PIA:I set the GPIO pins to input,  make R/W high for reading and then read the input pins..Does that sound right?   I'm concerned about the timing between the GPIO data bus pins switching from output to input (and back)  and then toggling the R/W line to the PIA. Is all this switching even needed?  

Hi here. I am trying to get  STM32H743iit as usb_audio_device with CubeMX latest version.No initialization of stm32 sound device in windows 10 device manager.Other projects from this link  https://www.waveshare.com/wiki/OpenH743I-C  especially USB_FS, USB_HS working good, but in windows devise manager  no descriptors info in usb device properties windows for HID project. Could somebody help where i am got problem with usb_audio_device? I change VID, heap size but it is do not help. Please help.Regards