STM32 MCUs

Hello, I am experiencing a problem with ADC1 and ADC2. I configured them in Dual Regular Simultaneous Mode, where ADC1 acts as the master and ADC2 acts as the slave. The ADC channel connections are as follows: ADC1 Channel 1: 24V_Sense ADC1 Channel 2: 5V_Sense ADC2 Channel 14: IOut_Sense ADC2 Channel Vrefint: Internal reference voltage However, I noticed that IOut_Sense always has a value, while 24V_Sense is unstable and fluctuating. OUTPUT:V24:24011 mV | V5:3 mV | I:23653 mA V24:8807 mV | V5:3 mV | I:8675 mA V24:8726 mV | V5:1 mV | I:8675 mA V24:8844 mV | V5:3 mV | I:8675 mA V24:23767 mV | V5:1 mV | I:23528 mA V24:23853 mV | V5:0 mV | I:23590 mA V24:23727 mV | V5:0 mV | I:23435 mA V24:23968 mV | V5:0 mV | I:23481 mA V24:8832 mV | V5:3 mV | I:8675 mA V24:23541 mV | V5:0 mV | I:23388 mA uint32_t adc_dual_buffer[4]; int main(void) { HAL_Init(); SystemClock_Config(); MX_GPIO_Init(); MX_ADC1_Init(); MX_ADC2_Init(); MX_USART1_UART_Init(); MX_I2C1_Init();

Split from STM32CubeIDE version 2.1.0 won't generate IOC project file as this is a new question.Please keep to one question per thread.Thanks both Ghofrane GSOURI & Andrew Neil for pointers. Adopting the method shown in the presentation. I have selected a nucleo development board to create an STM32MX project. I have then created a STM32CubeIDE projecfrom the MX project. Having not written any code yet, I'm getting compilation errors but have no idea why? The errors are relating to files marked with a red x below: 

Please note that the user authentication service will be under maintenance on 12 March at 5:30 AM CET (10:00 AM IST) for approximately one hour. During this period, some disruptions may occur. The impact is limited to versions earlier than STM32CubeMX V6.16 and STM32CubeIDE V2.0.0. The service returns to normal soon after maintenance is complete. What to do if you encounter a problem If you experience issues during the maintenance window, please use st.com or try again after one hour. If the problem persists after that time, contact us through the Community for further assistance.   Update 13 March 2026: The maintenance was successfully completed as scheduled on 12 March. If you encounter any issues, please do not hesitate to contact us.

Please note that the user authentication service will be under maintenance on 12 March at 5:30 AM CET (10:00 AM IST) for approximately one hour. During this period, some disruptions may occur. The impact is limited to versions earlier than STM32CubeMX V6.16 and STM32CubeIDE V2.0.0. The service returns to normal soon after maintenance is complete. What to do if you encounter a problem If you experience issues during the maintenance window, please use st.com or try again after one hour. If the problem persists after that time, contact us through the Community for further assistance.   Update 13 March 2026: The maintenance was successfully completed as scheduled on 12 March. If you encounter any issues, please do not hesitate to contact us.

Hi,I powered the NUCLEO-F410RB board externally by changing the JP5 jumper to select the E5V power supply and applied 5 V to the E5V pin. Initially, I did not have an external ST-LINK, so I switched JP5 to U5V and programmed the Nucleo board through USB.During this back-and-forth process, I powered both internally and externally at a time. After this, the board started consuming more current, and U1 in the NUCLEO-F410RB schematic overheated. Eventually, the VOUT and GND pins were found to be shorted.   After troubleshooting, I found that the short was inside the on-board debugger IC (ST-LINK), between VDD and VSS, so I removed the debugger IC.Later, I purchased an external ST-LINK and tried to program the Nucleo board again. I powered the board externally with 5 V on E5V. The main MCU is getting 3.3 V, but there is almost no current consumption, whereas earlier it used to draw around 200–700 mA.For debugging, I removed the CN2 jumpers and made the following connections:C

I'm trying to set up FSMC in muxed mode to read_write external NOR flash devices. Muxed pins goes through 2 8-bit latches 74HC574D.The problem is that currently i can barely read from external NOR and it's not accepting commands.Firstly HAL_NOR_Init(&hnor1, &Timing, NULL) returns HALL_ERR  since it fails to read CommandSet from NOR. It should read address 0x13 from CFI and get 0x02 or 0x01 as a result, but write commad makes no effect and as a result driver reads at 0x13 from memopry start.After analyzing what's going on on the FSMC bus I still cand fing any clues. Here is an example how it performs ReadID sequence, using standard HAL_NOR_ReadID Everything looks correct, 3 sequences 0x555 - >0xAA, 0x2AA -> 0x55 and 0x555 -> 0x90, but reading 0x00 and 0x01 right after returns data from NOR not the deviceID I've also tried bitbang mode with same pins and code below successfully reads deviceID. So after all it's not a witing problem, but maby timings or so

Hello,When generating a basic Bluetooth project for NUCLEO‑WBA55CG using STM32CubeMx 6.17 (and 6.16) with Cmake as the toolchain, the project compilation fails to a missing symbol during the link stage.Here is the error message:le_ctrl.c:(.text.HCI_READ_LOCAL_VERSION_INFORMATION+0x20): undefined reference to `ll_sys_get_brief_fw_version'After investigation, it turns out the issue is caused by the incorrect order of linked static BLE libraries in the generated CMake file "cmake/stm32cubemx/CMakeLists.txt". CubeMX places the Link Layer and BLE Stack libraries in an order that prevents the linker from resolving symbols correctly. Reordering the libraries fixes the issue.Here is the corrected order that resolves the error:# Project static libraries set(MX_LINK_LIBS :stm32wba_ble_stack_basic.a :WBA5_LinkLayer_BLE_Basic_lib.a STM32_Drivers ${TOOLCHAIN_LINK_LIBRARIES} Utilities STM32_WPAN Common ) Best regards

Hi Together,I am currently trying to use the FMAC hardware accelerator. Normal usage already works. Now for numerical stability I want to implement the filter as second order sections (sos). According to RM0481:Cascaded filters must either be combined into a single stage, or implemented asseparate filters. In the latter case, multiple sets of filter coefficients can be pre-loadedinto the memory, one set per stage, and only the X2_BASE address changed to selectwhich set is used.To do this I currently:Concatenate all the stage coeffs into one vector:static int16_t const b_Coeffs_0[b_Coeff_len_0] = { 55, 111, 55 }; static int16_t const a_Coeffs_0[a_Coeff_len_0] = { -3745, -258 }; static int16_t const b_Coeffs_1[b_Coeff_len_1] = { 16384, 32767, 16384 }; ...static int16_t all_coeffs[sos_Coeff_Count] = { b_Coeffs_0[0], b_Coeffs_0[1], b_Coeffs_0[2], a_Coeffs_0[0], ...On setup input the vector as b coefficients:filter_Config.Clip = FMAC_CLIP_ENABLED; filter_Config.Filter = FMAC_FUNC_IIR_DIRECT

Having some issues trying to debug a FreeRTOS project using JLink, using an STM32U5G9 (Riverdi 5" Display Board) If I enable "serverRtos" in the launch configuration:"configurations": [ { "type": "jlinkgdbtarget", "request": "launch", "name": "STM32Cube: STM32 Launch JLink GDB Server", "origin": "snippet", "cwd": "${workspaceFolder}", "preBuild": "${command:st-stm32-ide-debug-launch.build}", "runEntry": "main", "serverSpeed": "12000", "serverRtos": { "enabled": true, "port": "60000", "driver": "freertos", "driverPort": "ARM_CM33_NTZ" }, "preRunCommands": [ "monitor exec SetRTTSearchRanges 0x200bb800 0x234800" ], "imagesAndSymbols": [ { "imageFileName": "${command:st-stm32-ide-debug-launch.get-projects-binary-from-context1}" } ] } ]And then try to start a debug session, i get a disconnect error:Reading 20 bytes @ address 0x200C2A5C Read 4 bytes @ address 0x200C2A28 (Data = 0x200C2970) Read 4 bytes @ address 0x200C2A58 (Data = 0x200BEA20) Read 4 bytes @ add

Hello,I want to develop a LoRaWAN sensor with STM32WL5MOCHxS, but I can't activate the LSE and HSE clock in CubeMX.Is there a way to make the adjustments in the .ioc?The configuration is possible in STM32WL5MOCH (expired).

Hello ST,1. ds14258 Rev.6 Table 57 on p.163 specifies a positive I_inj of "N/A" for pins other than PA4, PA5, PB2, PB12,PC14, PC15, PD8, and PH2 (as opposed to a positive I_inj of "0 mA" in the row above for pins PA4, PA5, PB2, PB12, PC14, PC15, PD8, and PH2) Does "N/A" mean that it is *impossible* to cause any positive injection (on pins other than PA4, PA5, PB2, PB12,PC14, PC15, PD8, and PH2) with pin voltages between 0V and 4V when VDD is unpowered or at 0V?i.e. Do pins other than PA4, PA5, PB2, PB12, PC14, PC15, PD8, and PH2 have some kind of "nice" input structure that allows powering them when VDD is unpowered or at 0V?  2. ds14258 Rev.6 states in Note 3 on p.128: "Positive injection (when VIN > VDDIOx) is not possible on these I/Os and does not occur for input voltages lower than the specified maximum value." Does "not possible" in the above sentence mean:a. that externally raising the voltage on those pins to between 0V and 4V when VDD is unpowe

TouchGFX adds a redundant line ending to .cproject file when clicking generate code even if nothing has changed.This causes changes to show up in git and also makes merging and pull requests more complicated.In STM32CubeIDE the line ending is removed after making any change to the project (and optionally reverting the change). -<?fileVersion 4.0.0?><cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage"> +<?fileVersion 4.0.0?> +<cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage"> I'm using TouchGFX 4.23.2, but the problem was also present in older versions. Using STM32CubeIDE 1.15.1, but older version had the same effect.Please fix this.  

The image sensor inputs a 24 MHz clock and outputs a 40 MHz clock, and the captured image size is 1280×1024×2. When the trigger mode of the image sensor is enabled, the main loop execution speed slows down by approximately 1.6 seconds; when the trigger mode is disabled, the system operates normally. Furthermore, I intend to transmit the images collected by DCMI via USB, but these two modules cannot be enabled simultaneously. Additionally, when the DCMI is operating, serial port interrupts will cause abnormal operation of the DCMI. How should I resolve this issue? Below is the configuration code and main loop code of my STM32H743:

  I found more issues. 1. Missing SRAMEN bit in RCC_AHBENR register. I think it is bit 9. See STM32U0 RM0503 page 54, RCC_AHBSMENR register and STM32F0 RM0091. With this new bit, reset value is: 0x0000 0300Also I think that it is missing SRAMRST bit in RCC_AHBRSTR register. It should be bit 9. This problem is also on STM32G0 and STM32C0 RMs. 2. Missing TIMx_OR2 and TIMx_OR3 registers mentioned on RM0503 page 553.This problem is also on STM32G0 RM0444 and RM0454, and STM32C0 RM0490. 3. STM32F0 RM0091 didn't mention how internal break input (called "Internal break event sources") is selected. See pages 359 and 514. STM32F0 RM0091 doesn't have an equivalent to STM32U0 RM0503 figure 164 on page 592. 4. STM32U0 RM0503 pages 107, 108 and 118, mentions pin PE6 but it doesn't exist in datasheet. RTC_TAMP3/TAMP_IN3 is pin PB15 and not pin PE6. From STM32U0 DS:TAMP_IN1 PC13TAMP_IN2 PA0TAMP_IN3 PB15TAMP_IN4 PC5TAMP_IN5 PA1 5. STM32U0 RM0503 page 413: Missing description of VREFBUF_CCR regist

Is there any alternative of "B-CAMS-OMV" to use with "STM32F746G-DISCOVERY" as in my region it is not available and the cost will be huge if I want to ship it to Bangladesh. So, is there any alternative modules that I can search for?

There is a problem with saving assembler source files when the C/C++ > Editor > Save Action > Format source code option is enabled:As a result, the file is not saved, and when it is just created, there is no file at all. It's quite irritating, especially because this is quite an old bug and no one has resolved it yet.

I can't get the STLink drivers installed on Windows 10 / 11 aarch64 Parallels VM running on Mac M1.Is there any support for ARM64 Windows STLink drivers?

I am successfully receiving feedback from the motor side, including the encoder values, which are being read accurately.I am writing to update you on the motor control project and to seek your guidance on an issue I'm currently facing.Project Configuration:Microcontroller: STM32H723ZGMotor Drivers: Rhino RMCS-2303 (Quantity: 2)Motors: Rhino DC Motors (Quantity: 2)Hardware Setup:Motor 1 (Left Motor):UART Communication: USART2 (PA2-TX, PA3-RX)Control Pins: ENA (PC0), DIR (PC2), BRK (PC4)Feedback: ADC (PA0) - OptionalSlave ID: 7Motor 2 (Right Motor):UART Communication: USART1 (PA9-TX, PA10-RX)Control Pins: ENA (PC1), DIR (PC3), BRK (PC5)Feedback: ADC (PA1) - OptionalSlave ID: 6Current Status:I have successfully implemented the basic motor control system with the following functionalities::white_heavy_check_mark: Forward movement (F command):white_heavy_check_mark: Backward movement (B command):white_heavy_check_mark: Left turn (L command):white_heavy_check_mark: Right turn (R command):whi

Dear ST team , My STM32H753ZIT6 MCU is designed for working at 3.3V, Is this voltage compatible with the ST Link programmer? I want to know whether I need to put any level translator in between for SWDIO, SWCLK, SWO, VCP_RX, VCP_TX, NRST signals and the programming connector if 3.3V is not compatible.RegardsShyam

Hello,I would like to confirm how VBUS behaves in STM32 USB OTG depending on the Host/Device mode.Specifically, I would like to ask the following:When STM32 is configured as Host mode, should the STM32 source 5 V onto VBUS?When STM32 is configured as Device mode, does it only sense/monitor VBUS as an input?Is this behavior handled automatically by the internal OTG controller, or does it require an external VBUS power switch or additional external circuitry?Additionally, I would like to ask about a hardware configuration where an external 5 V supply is always present on VBUS, regardless of the STM32 Host/Device configuration.In this case, I would like to confirm:Whether this could cause any issues when STM32 operates in Host modeWhether it could affect Host/Device role detection or OTG behaviorWhether USB enumeration and normal data communication would still function correctlyIn other words, I would like to know whether a design where VBUS is always supplied by an external 5 V source is

I’ve been trying to download STM32CubeIDE from your website for the past 3 days without any luck. I’m located in Norway. I recently updated my old installation (version 1.4.x, not sure exactly which), and something went wrong during the update. Now the IDE is broken and won’t start, and I don’t have the original installer anymore. The problem is that the download from the website simply never starts. After I accept the license and press download, nothing happens. I’ve tried: Different browsers Clearing cookies/cache Incognito mode Using a VPN Different networks Still no success. Is there an alternative way to get the installer, or could this be some kind of regional/server issue? Any help would be appreciated.

Issue Description:I am using the `STM32_Programmer_CLI` to flash the BLE Wireless Stack on an STM32WB series MCU. However, after the programming process is complete, the memory read returns an unexpected value at the Stack Version address, even though the GUI shows the correct version.**Steps to Reproduce:**1. **Read Initial "Stack Version":**```textReading 32-bit memory contentSize : 4 BytesAddress : 0x200100140x20010014 : 01180003```*(Note: 01180003 corresponds to Version 1.24.0.3)*2. **Delete "Stack FW"**3. **Read "Stack Version" again:**```textReading 32-bit memory contentSize : 4 BytesAddress : 0x200100140x20010014 : 00000000```4. **Flash "stm32wb5x_BLE_Stack_light_fw.bin"**5. **Read "Stack Version" after programming:**```textReading 32-bit memory contentSize : 4 BytesAddress : 0x200100140x20010014 : 130E0019```**The expected value is `01180003`.****Comparison with STM32CubeProgrammer GUI:**If I then switch to the GUI version of STM32CubeProgrammer:* **Connect** --> **Firmware

Hello,I the Reference Manual (RM0410 Rev 5) for STM32F769I-DISCO, DMA_P1 is not shown connected to AHB Bus Matrix. It is intentional or error in the diagram ?Thanks,Debasish Das  

Hello ST Community Team,We are currently working on an STM32N6-based design using TouchGFX and would appreciate your guidance regarding the LTDC framebuffer address configuration.Setup details:Display resolution: 800 × 600Graphics framework: TouchGFXExternal memory device: eMMC – IS21ES08GA-JQLIThe eMMC is used as external memory in the systemWhile configuring TouchGFX and LTDC, we need to specify the framebuffer start address for the LTDC layer. Since the framebuffer is not located in internal SRAM, we would like to understand:What LTDC framebuffer address should be provided when using an external eMMC (IS21ES08GA-JQLI)?Is it recommended (or required) to first map the framebuffer into an external RAM (such as SDRAM/PSRAM) instead of directly using eMMC?Are there any reference examples or application notes showing TouchGFX with LTDC using external eMMC for framebuffers?Any clarification on the correct memory mapping and recommended architecture for this use case would be very helpful.T

Hi ST team,I am using X-CUBE-SBSFU V2.8.0, project: Device: STM32H753Base example: NUCLEO-H753ZI 2_ImagesI ported UART pins/port for my H753 EVAL board.ProblemBuild fails in SECoreBin with GNU14.3 toolchain:C:/.../2_Images_SECoreBin/Src/se_crypto_bootloader.c:222:(.text.SE_CRYPTO_Decrypt_Init+0x16): dangerous relocation: unsupported relocation However , Then i shifted to 13.3 tool chain , then everything works fine for me.  Please confirm whether this is a known GCC 14.3 compatibility issue for SBSFU v2.8.0 key generation. If yes, could you share an official patch for prebuild.sh / key assembly generation so generated key symbols are fully compatible with newer GNU/binutils?