STM32 MCUs Products

Heyho, just found that the N6 has gigabit ethernet - which might help me staying away from the monstrous MPUs... :D Is there kinda compatibility list between the STM32 families for the peripherals? ethernet interface, surely different HW concerning GbE vs 100M, but maybe the registers / descriptors work basically the same? CANFD and the SAIs? OCTOSPI / XSPI with memory-mapped HyperRam?  the (partly) more simple peripherals like ADC, timers, UART? Merci!  

Hello everyone,I'm working on STM32H7S7L8 custom board with same architecture as the DK board ( for XSPIM)The mcu and flash is working fine i can uplaud a boot/appli without issue (touch gfx + lwip work so the hardware is fine)But working on the FW 1.3.0 I'm unable to make MCE work.I followed step by step the MCE workshop : https://github.com/ST-TOMAS-Workshop/stm32h7s_workshop/blob/main/3_external_memory_encryption/external_memory_encryption.mdBut when I build the extmem loader and try to uplaud the code I got :Weird thing is that i already made MCE work on the DK board without issues but here it is not possibleLog output file: C:\Users\hdia\AppData\Local\Temp\STM32CubeProgrammer

Hello,ST announced the STM32V8 series some time ago (https://www.st.com/content/st_com/en/campaigns/stm32v8-high-performance-cortex-m85-mcu-z11.html), but there haven’t been any updates since then.I have a couple of questions:How can we download the datasheet for the STM32V8 series?When will the Nucleo or evaluation boards for this series be available for order?Thank you in advance for your help.

Hi, I am trying to establish CAN communication between three different MCUs: NUCLEO-H723ZG, NUCLEO-H755ZIQ, and NUCLEO-G474RE. However, I am unable to successfully communicate between the boards, even though the same baud rate has been configured on all MCUs. I have also connected an external CAN transceiver to each board for proper CAN bus operation. On the NUCLEO-G474RE, I have enabled UART4 to send command data, using the following pins: PC11 – UART4_RX PC10 – UART4_TX Clock Frequency [SYSCLK] & Baud Rate [CAN]: 1. NUCLEO-H723ZG: 550 MHz     Baud Rate: 500000 Bit/s

On AN4879, STM32N6 is marked as Type E (Universal serial bus full-speed host/device interface) But actually it has 2 HS OTG with phy as high-end line up (2* Type D)  

Hi!In version 4 of the reference manual for STM32U0, it is suggested that BOR is enabled and on Level 3 from the factory.Is that correct?I'm currently working on an construction running @ 2V, so it would never start up, if so. And when I read out the Option Bytes on a new MCU, BOR is disabled? https://www.st.com/resource/en/reference_manual/rm0503-stm32u0-series-advanced-armbased-32bit-mcus-stmicroelectronics.pdf

Hello, rm0456 in chapter 33.4.8. talks about "Software procedure to calibrate the ADC" and "Extended calibration mode" on some products. It is not clear, if "Software procedure to calibrate the ADC" is enough for products with "Extended calibration mode" or  if extended procedure should be done always when available?Please clarify! Thanks

We have both a very RAM constrained and space constrained board.  So the OctoFlash chips are larger then i would like.     So being able to XIP off a spi flash that only has 4 SPI lanes would be very helpful.  I just don't know the ramifications of something like this.    If we have like 200 Mhz chip flash Chip, in spi 1-4-4.  Will this cause a significant delay?  I'm guessing all these instructions get loaded directly into the instruction cache which is only a few KB of storage.       If you think this is a valid option.  Does ST have any parts for this?  If I use a different Flashchip.  Will i have a hard time programming it with the standard ST?   Related question * Limitations of flash 

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: 

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? 

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

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.   

We have a design that has been working fine for some time now using STM32G071CBT6 in LQFP48 but a new batch is suddenly failing with ADC readings from VREFINT that are quite a way out of spec.Previous versions have always been slightly low - reading maybe ~3.15v on a ~3.25v supply voltage but that's always been "close enough", but now the latest batch of devices are dipping below 3.0v on the same ~2.35v supply and triggering our under-voltage detection.We are monitoring a few voltages using the ADC, including the supply voltage which is commoned with VDD/VDDA, VBAT and VREF pins - decoupling is per the power supply scheme shown in the datasheet DS12232.VREFBUF is disabled.Since we are not worried too much about absolute accuracy, we are not running the calibration routine on the ADC.System clock is 16MHz and A

We are using an STM32G070 with 64 Pins.The clock comes from an external 32,...kHz crystal. For clock calibration, we enable the RTC calibration output PC13.Whenever this is active, reading the state of the input PA4 always returns false, although we activated the pullup. Measuring the pin gives us the expected 3.3VDisabeling the calib output makes PA4 readable again. We compared the PA4 port setting with/without calib-output, they are always the same. Do you know about this issue? I found an errate entry concering PC13, but not our situation. Best regards,Peter

We are facing an intermittent EWGF (Error Warning Flag) issue during CAN communication at 1 Mbps on multiple STM32 MCUs. The same hardware and software setup works reliably at 500 kbps without any CAN warnings.MCUs UsedSTM32L443VCT6STM32L443CCT6STM32F437ZGT6All devices communicate together on the same CAN bus.Issue DetailsWhen CAN bit rate is configured to 1 Mbps, the EWGF bit in CAN_ESR register gets set intermittentlyCommunication does not stop immediately, but error counters increase over timeAt 500 kbps, the issue is not observedSame CAN transceivers, wiring, and termination are usedCAN Configuration

Hello, I need a circuit schematic for the NUCLEO-L010RB development board, specifically for lighting up the LEDs.

Hi,On the STM32H563 Nucleo, I was able to flash an application using the UART bootloader.However, the application does not execute when triggered with the GO command.If BOOT0 is pulled low, the same firmware runs successfully.But Go command executes properly but the firmware is not runningThe firmware i am trying is led blinking application

So i have the stm32G0 usb-c disco board. https://www.st.com/en/evaluation-tools/stm32g071b-disco.html   I've flashed the latest USBPD_Analyzer software on the device and i have the latest UCPD monitor project.    The semi problem is that it's kind of frustrating that in SPY MODE by default the mico doesn't show as a USB device.  I only see the usb micro usb connection when i'm in Snk Mode.  Is there a reason why in spy mode the USB connection to the PC from the micro doesn't show up?   So what i have to do is.  Start in Snk mode.  Connect to the PC via the micro usb connector and connect to the UCPD monitoring program.  Then i can switch to SPY MODE then i can attach my devices to it.  Which can kind of be flakey so

Greetings, I am looking for pointers to material describing recommended ways to interact with built-in flash memory for general data reading and writing.DS9716 indicates there are several memory-mapped regions that could suffice, but maybe block 6 (starting at 0xC000 0000) seems like a safe bet, since it is "Not used"?Since this is for data storage and retrieval only, not instruction storage and retrieval, is there any need to mark the region of memory in some way in the loader script?Also, I noticed the HAL functions have some flash-based functions (UM1725) - there is some good info in there but again I'm not sure what memory target would be best for these functions.Apologies if this has been written up somewhere already. I see several "lab" type resources on the web for demonstrating how to do this, but I haven't seen a recommended practice in the official documentation or the knowledge bases here.

Not sure what is going on, im unable to toggle an IO and im not sure why...This is a very simply custom board, it uses I2C, CAN and USB. I've configured everything in CubeMX and double checked the pinout and gerber files several times but i can't find anything wrong. I've double checked the voltages on VDD and VDDIO2, both are 3.3V. I've tried configuring PD2 as Push-Pull and Open drain with and without pull-up but i get no change on the pin when measuring with my scope.PD2 is connected to the CAN STBY pin that has an internal pull-up, the pin remains high when the PHY is connected and low when the PHY is disconnected. This would indicate that there is no short on the board and that the electrical part is fine. I have physically probed the connections on the board and they are correct.What am i missing, do i need to configure something else? Below is the minimum CubeMX project. I2C and the EXTI work fine but PD2 does no

Hello ST Community, My MCU Part No. is STM32F103C8T6.My MCU Firmware Package is STM32Cube FW_F1 V1.8.6 and This Package CAN Communication is Working Fine and When Ever i Change one GPIO Pin and Generate the Code then CAN is Not Working What is The Problem Behind it ? If Any body Idea About That ? Thanks In Advance .

Unsure if this has been answered before, however, upon activating the Cube-AI Core and application software pack, the remains static, ie it stays blacked out with a gear icon next to it referring me back to the software packs screen, which already shows a green status icon.However

Hi everyone,I'm working with an STM32F103CB in my project and would like to know the default Brown‑Out Reset (BOR) threshold set for this MCU. Additionally, I’m looking for guidance on how to configure the BOR threshold to a custom level.Any help or pointers would be greatly appreciated!Thanks in advance.