STM32 MCUs Boards and hardware tools

It seems that the STLINK-V3SET is out of stock almost everywhere. Is there any information on when it will be back in stock?Thanks

Hello everyone,I've noticed that several users have experienced issues related to the LDO power supply setup for the STM32H757A. I’m currently working on a design using this MCU in LDO mode, and I’d like to confirm whether my power supply implementation is correct. Just to turn On the LED. Could someone please review my configuration and let me know if there’s anything I should adjust or improve?Thanks in advance for your help!

I want to let the user LEDs blinken, however it is not working. When I run the code the LD4(COM) is blinking red and green. after the run the LD4(COM) is red the whole time and the user LEDs do not blink. Should the LD4(COM) be lighting green?

Hi Community,I am about to work on STM32H7471-DISCO Development BoardCan you provide Schematic of this Board.I found all the technical documents from https://www.st.com/en/evaluation-tools/stm32h747i-disco.html# but I do not found board schematic.  

Hi, I am using Nucleo-144 boards in my project where I have changed the clock source for STLINK IC to external crystal using STLINK firmware upgrade tool. Before it was HSI/2 =8MHz. Now I am trying to revert the configuration back to 8MHz but I am not able to detect the Nucleo board now with 8 MHz. Is this known issue? I tried configuring it back to 5MHz using tool below and it works fine , detects all the time in MATLAB. But not with 8MHz (HSI/2).  How to revert back the configuration and make the board detectable?   

I am using the Nucleo-L433RC-P board and want to use LPUART RX on pin PA3.But the schematic shows that pin PA3 is used for STLINK_RX.  What is STLINK_RX / STLINK_TX used for ?Can I remove SB75 to access the pin or would this stop STLINK from working ?  

stlink-V3pwr current ：  21mA X-NUCLEO-LPMO01A current ：17mA actual  current ： 15mA 

Title edited to "STLINK-V3MODS"Hello ST,Do you perhaps have an STEP or IGS file of the STMV3MODS module ?Thank a lot.   

Hello everyone,I’m using the STM32H747I-DISCO development board for evaluation and prototyping. I would like to know whether this board has undergone any form of EMI/EMC certification (e.g., CE, FCC, CISPR) or internal EMI testing by ST.Specifically, my questions are:Is the STM32H747I-DISCO compliant with any EMI/EMC regulations?Can this board be used in pre-compliance EMI testing or EMI-sensitive environments?What are ST's recommended practices or references for designing a production-grade board using the STM32H747 that complies with EMI/EMC requirements?I understand that development boards are generally not certified for end-product use, but I would like to confirm the official stance and request any available documentation or layout guidelines focused on EMI/EMC compliance.Thanks in advance for your support and guidance!

On the STM32H7B3I-DK, several STMod+ signals share two GPIO options (e.g., PA11/PA0, PC3/PD5 for SPI2/USART2). Even when I configure only one of the shared pins as a simple GPIO (e.g., output or input with pull-up), it doesn’t function — no toggling, no input reading, and no internal pull-up.I've:Disabled conflicting peripherals (USB, SPI2, USART2, etc.)Verified GPIO clocks and init codeTried minimal code to toggle pinsConfirmed it’s not a code or hardware mistake on my sideIs there something board-specific or internal (e.g., STMod+ mux, hidden peripheral lock) that blocks these pins?Thanks,

we need to connect a camera to the STM32H745-Disco board. Our ultimate goal is to develop an application similar to the image_classification example from the STM32AI Model Zoo. Since we are unable to purchase another board, we would like to ask if it is possible to connect a camera module to the STM32H745-Disco for this purpose. Any guidance or suggestions would be greatly appreciated.

Hi,I'm trying to toggle a pin on my STM32H723 (LQFP144) using GPIO. According to the Nucleo-144 board datasheet, PE12, PE13, and PE14 appear to be connected to both CN10 (Zio) and CN12 (Morpho).However, when I toggle the pins to light up an LED, the signal only appears on CN12 — not on CN10.I’ve checked the documentation but couldn’t find any SB (solder bridge) configuration that might be affecting this behavior. Am I missing something?Best regards,Kewin

On the phase outputs why are there ground cutouts on the layout for this reference design. Is there a risk to cross couple to the ground plane with the switching noise or is it for thermal concerns?I've seen this in several ST ESC designs for drones and wanted to know.  Thanks,  

Dear all!this is the first time i design PCB for STM32H755, as my understand for direct SMPS that i design like attach file, really i don't know is it correct, so can you help take look and let me know if any mistake.

Been working on the Nucleo H5 dev board for about a month.  Everything with the built-in ST-Link/V3 was fine until randomly yesterday, the board would no longer get out of reset when the ST-Link is powered.   Board powers up and boots if getting power from the USB-OTG port AND the ST-Link is unplugged.  Tried with STProgrammer and GDB in VSCode debugger, neither can connect to the target chip.  To be clear, the STLink enumerates and works OK, but the MCU is held in reset state.   Board is held in reset state when ST-Link gets power/host connection.  Attempting to flash the board always gives "Reason: Target held under reset.".   All solder jumpers and physical jumpers are in the default positions   Fixes I've tried: Any set of settings via the STProgrammer, including Soft Reset, the "under reset" connection type, etc.  Any time STLink is powered from host, the board is held reset and will not connect still. Updating the STLink/V3 drivers/fi

Hello community,   I have thiss board, the first one  I'm designing from scratch on stm32 platform. I am able to connect and program just fine to some of the MCUs, but for the vast majority, the chip somehow gets fried before I can program it: I can't detect the MCU at all with cube programmer. Here is the relevant part of the schematic I'm using, is there anything I should add? This board connects to a programming board which is in turn connected to the ST link.     MCU is STM32G0B1  

It's possible to set an interrupt priority for a pin in STM32F411 MCU, right? My PC13 pin (user button) is set to GPIO_EXTI13 and I want to give it the preemption priority 3 in the NVIC (STM32Cube IDE ver: 1.18.1) but it's seemingly not possible! Its value is zero and immutable!Here's a screenshot:

Hello everyone,I am working right now in a project involving some of ST products. I have my custom HW board with a STM32G0B1 MCU for a specific functionality. In order to work with it and be able to program and debug my project, I was using two main devices: A NUCLE0-G0B1RE development kit to get familiar with the MCU and make some SW tests, and also a few STLINK-V3MINIE programmers to program and debug my custom HW with the STM32G0B1. The problem comes when the ST-LINK device stopped working with a new version of my HW where the MCU is still the same and the debug circuit also remains the same. With the previous HW version it works well and I am able to program and debug it. I also tried with the ST-LINK integrated in the NUCLEO board with SWD connection and this ones DOES work with my new HW. I am quite confused right know because I don't understand which is exactly the problem here. It's not the first time that the ST-LINK V3MINIE is not working as expected. I also tried t

Hello, I am using STM32H743BIT6 as a MAC for DP83TC814R Ethernet PHY, I have one query regarding oscillator, I am using Ethernet in RMII slave mode which requires 50MHz reference clock, can i use the same clock which i am using for MCU HSE or should i use different one for EThernet PHY, But how the clocks can be synchronised in that case? 

This question pertains to the (relatively) new STLINK-V3MODS programming/debugging device.The UM2502 Users Manual for this product goes into great detail about using Pin #22 of the castellated edge connector aka +5V for ancillary purposes:"Pin 22 of the right edge pin connector can drive a 5 V target with a maximum output currentof 200 mA. The 5 V pin is guaranteed to be in the +/- 5% range if the driven current does notexceed 200 mA."I attached an ohmmeter between pin #22 and the board's +VBUS pin on its USB connector. Because +5V power from pin #22 would be derived from +VBUS pin I expected to see near zero ohms between these nodes. However, I did not and I'm curious why not.Is there a microcontroller-enabled pass transistor between +VBUS and pin #22? When is this transistor enabled?

Hi,    I use Nucleo-H753ZI.    I am using STM32CubeProgrammer. to debug mt ST_LINK, which stopped working.    I read Voltage = 0, ID can't be read out.     How to fix it?   Thanks 

I'm working on a second project using AI and I came across the ToF sensor that can be used to detect hand gestures. It is possible to use the AEK-LCD-DT028V1 LCD together with the Nucleo-F401RE board and the X-NUCLEO-53L8A1 sensor.

I'm looking for CAD resources of NUCLEO-H755ZI-Q  board Revision D-01. Currently en the web-page there are for revision C-01. Thanks

Hello All,Can anyone share the list of compatible cameras with STM32N647A0.As, going through STM32N6 DK, camera interfaced is B-CAMS-IMX 5Mpx.Is it possible to interface an 8Mpx camera with STM32N647A0 as one of the camera vendors are in a view to go for 2Mpx with STM32N647A0 but we wanted to use an 8Mpx for the design. Is it possible?Can anyone guide in this?? or if anyone can share the list of cameras with small form factors that are compatible. Best Regards,Sakshi    

Hello,We have procured STM32U5G9J-DK1 recently. We have to supply a voltage of 3.6V to its Vbat pin. Datasheet of the Microcontroller (STM32U5G9NJ) say that we can supply a Vbat voltage of 1.6V to 3.6V but schematic of this Discovery kit mentions that "The design supports a VDD_MCU at 1.8V only" (Ref MB1829 schematic of this Discovery kit). Also, whenever I configure any GPIO as output on this kit and Pull it high, it shows 1.8V only. So, my doubt is whether or not we can give 3.6V to Vbat pin. Should we restrict Vbat to 1.8V only ? With regard,Sudarshan Chaudhary