Solved

 This means that the links for both ‘Fixed Issues’ and ‘Known Problems’ in the release announcement don’t work: 

Hi! I'm working on setting up FDCAN communication using the STM32N6570X0-Q Nucleo Board. However, when I try to modify the bit timing parameters—such as the Nominal Prescaler, Nominal Time Seg1, or Seg2—the baud rate doesn't seem to change regardless of the values I set.On the receiving side, I'm using a STM32H533RE Nucleo Board to echo the messages, but it doesn't receive anything—so I suspect the issue may be with the timing configuration on the N6570X0-Q.Do you have any idea what might be causing this behavior?Thanks in advance! 

I am currently evaluating thefor use with 1000Base-T Ethernet and am attempting to configure the peripherals using STM32CubeMX. While following the same process as with other STM32 chips, I was unable to find the Ethernet configuration under Pinout & Configuration -> Connectivity. Could you kindly advise where I should configure the Ethernet settings?Thank you for your assistance.

STM32CubeMX generates by default a xx.ld file.It has copyrights from 2023. However, if I set "Apply Application Regions Settings to Linker File", it will generate a file with 2025 copyright, different template, also with XX.ld case, which on Linux, will give issues. Version 6.16.1

HiWhile reviewing some specs for the SW developers, we noticed some inconsitency between the datasheet and reference manual of the STM32H735.The DS states four VBOR thresholds (VBOR0 to VBOR3).In the RM, the description of Bits 3:2 BOR_LEV[1:0] is different for the read-only register FLASH_OPTSR_CUR and the programming register FLASH_OPTSR_PRG. The former states four VBOR thresholds (VBOR2 is 0b10), the latter refers to a nominal voltage level (2.4V - approx. VBOR2 - is 0b01). Can you please clarify. Thanks! 

I was able to sign properly a tf-a image using STM32_SigningTool_CLI STM32_SigningTool_CLI -bin tf-a.stm32 -o tf-a_Signed.stm32 --password password --public-key publicKey00.pem publicKey01.pem publicKey02.pem publicKey03.pem publicKey04.pem publicKey05.pem publicKey06.pem publicKey07.pem --private-key privateKey00.pem --type fsbl --header-version 2.2 -of 0x00000001 I was moving my setup to use a pkcs#11 to better manage my secrets. I was trying to use softhsmv2 as a first step. It seems that if -hv is specified the tool is failing while validating the inputs:STM32_SigningTool_CLI -bin tf-a.stm32 -o tf-a_Signed.stm32 --password password --header-version 2.2 -of 0x00000001 --module /usr/lib/softhsm/libsofthsm2.so -ki 00 01 02 03 04 05 06 07 -pwd password -si 0x00 -aki 0x00 --header-version 2.2This produces the error:Error: Invalid Header version valueHeader v2.2 accepts 8 public keys And if I don't define --header-version the tool works properly, but the output i

I created a new project using CubeMX, and after that I plan to implement a framework for my firmware. I would like to better understand the best way to organize a clean and maintainable folder structure.A colleague told me that all folders should be created inside the Core directory. I would like to understand whether using Core to contain my framework is the best approach, or if it is acceptable to create additional source folders outside of it.Additionally, where can I find examples of STM32 firmware projects generated using CubeMX?

In my application I want to implement an custom inband communication between RX <--> TX。I've gone through the official datasheet but couldn't find clear information about the in-band communication data registers or buffers. Could you point me to any additional reference materials, application notes, or documentation on in-band communication?

When I attempt to power cycle a STM32N6570-DK or NUCLEO-N657X0-Q board via the STM32_Programmer_CLI, I get the following error message:Error: Failed to Power ON the board ! Here is the full log:❯ STM32_Programmer_CLI --power off index=0 --power on index=0-------------------------------------------------------------------STM32CubeProgrammer v2.21.0 -------------------------------------------------------------------Power OFF...Drives the target power pin out of the (onboard) ST-Link.Info: Power ON/OFF maybe not available on your Board [also not available on standalone probes]Power OFF the board finished with success !Power ON...Drives the target power pin out of the (onboard) ST-Link.Info: Power ON/OFF maybe not available on your Board [also not available on standalone probes]Error: Failed to Power ON the board !  However, when I attempt the same command on other Nucleo boards, I don't get this error. Here's the same command run on the NUCLEO-H533RE:❯ STM32_Progr

Hi When I using STM32CubeProgrammer 2.22 GUI and try to control option byte, the page can't display.while CLI can read option bypte. 

STM32CubeProgrammer_CLI STM32TrustedPackageCreator problem with HSM, HSM_P11_Lib.dll cannot be loaded. GUI STM32CubeProgrammer works fine. Where that dll should be located? I Am using win11 pro. 

Hi everyone,I am learning STM32 bootloader development and I would appreciate some guidance.Hardware STM32 Nucleo-G431RB Windows PC USB-to-TTL UART converter UART communication RequirementI already have an application HEX file.My goal is to update the firmware through UART using a custom bootloader.I do not want to use: STM32CubeIDE ST-LINK STM32CubeProgrammer Any IDE during firmware update The complete firmware update should happen only through UART.What I want to achievePC↓Application (my own program)↓UART (TTL)↓Custom Bootloader↓STM32 Flash Memory↓Jump to ApplicationQuestions What should be my first step to implement this? Should my PC application send the HEX file directly, or should it first convert it into BIN? Should the bootloader parse Intel HEX records, or is it better to send binary data? What communication protocol is commonly used for custom UART bootloaders? Packet format Start byte Length CRC ACK/NACK What is the recommended fl

[English was established as the common basis so that everyone in the global community can understand each other (see ST Community Terms and Conditions - STMicroelectronics Community, article 10)]Dear STMicroelectronics Technical Support,Hello,We are a company in the rail transport industry and are currently using your TL084AI operational amplifier. However, during use, we have noticed inconsistencies in the markings on the surface of the devices. I have attached an example in the image below. What does “MZE5303” mean? (Note: we currently have another batch, such as MZE4303. What does this represent?) Which characters indicate the date code (for example, the batch number)? We would appreciate your detailed explanation. Thank you in advance. 尊敬的意法半导体技术支持，您好，我们是一家铁路交通行业的公司，目前正在使用您的TL084AI运算放大器。然而，在使用过程中，我们注意到设备表面的标记存在不一致。我在附图中附上了一个例子。“MZE5303”是什么意思？（注：我们目前还有另一批，比如MZE4303。这代表什么？）哪些字符代表日期代码（例如批号）？我们希望能得到您的详细解释。提前感谢大家。 

Hi, we are in the initial stage of our project and planning to use STM32H7S7I8T6, we need to have a 128MByte of external RAM as per our requirements but only 64MByte of PSRAM is available in market currently, is it possible to add two 64MByte of PSRAM to the MCU (If any please provide the guidance/design note) or any other options ? 

Specific STM32H7 series MCUs have the DCMI peripheral greyed out in STM32CubeMX version 6.17.0.See this image:Hovering over the peripheral it displays "Not available: DCMI and PSSI are in exclusive choice"I opened a few projects with different MCUs and checked whether the DCMI was greyed out:​​STM32H723ZGIx - WorkingSTM32H725IEKx - WorkingSTM32H730ZBIx - WorkingSTM32H733ZGIx - WorkingSTM32H735IGKx - WorkingSTM32H742BITx - Not workingSTM32H743XGHx - Not workingSTM32H745BGTx - Not workingSTM32H747XGHx - Not workingSTM32H750IBTx - Not workingSTM32H753Allx - Not workingSTM32H755XIHx - Not workingThe PSSI peripheral is notably absent from the list of available peripherals (correctly as per the datasheet) in STM32CubeMX for the parts where DCMI has been disabled.This is clearly a bug in the mutually exclusive check in STM32CubeMX between the DCMI and PSSI, failing on the parts without the PSSI peripheral. See: STM32CubeMX 6.15.0 claims "DCMI and PSSI are in exclusive choice" for STM32H753ZIT

Hey,I want to enable a fast connection with the STM32WB09KE. How do i avoid that the services and characteristics are discoverd every connection? i toughts there was a option for that when using the full ble stack. But whit this firmware and mcu i don’t see it in the STM32CubeMX. So before is start is this possible with this MCU and ble firmware options? Thx in advance! Best regardsMathias 

Hi friends, Does have processors from this family a dedicated input pin as the the input for inner LDO? It will be in the future to supply the inner LDO with the voltage Vcc/2 from the splitter like LM2665 or other. best regards zbynoB

HelloMy Nucleo-H755ZI-Q board disconnected mid-STLINK firmware update, and I am now unable to complete the process.Could you please guide me on the next steps to resolve this? 

I’m designing a tag coil for the ST25DV-04k. I am planning to use the ST25 to harvest NFC energy from a phone tap for a bioimpedance sensor (MAX30002). The ST25DV will then relay the sensor measurement to the phone via NFC again. I used an online calculator to design the tag coil, and these were the parameters I chose. Parameters for tag coilHowever, I am unsure if my quality factor is too high. “59.77” is before coupling, and I assume it will be lower after that. I understand that a high Q is great for energy harvesting, but it can limit the bandwidth and garble communication between the tag and the reader.Is my Q too high right now? If so, what is the optimal Q factor range? Anything else that stands out from my coil design?

Dear Sir/Madam,We use STPS20200CG-TR Schottky diode in our unit. This diode has operating junction temperature range -40C...175C and storage temperature range -65...175C. Our unit must start operating at -55C. Will STPS20200CG-TR operate at -55C ambient temperature without being damaged and which parameters may deteriorate?Thank you,Alex  

The schematic is shown below. I have pulled  down BOOT0 to ground through a jumper ， power supply voltage is normal. Could you please help me check if there is a problem with the MCU configuration。 

Hi everyone,I have one question before starting one project.I am working on information system related to Philippines government services like NBI Clearance. We are thinking future version can also work on small self-service kiosk or information terminal, not only website.Main requirements are:Stable for many yearsFast boot timeLow powerTouch display supportEthernet or Wi-Fi optionQR code scanner supportUSB printer support for receipt or documentI see many people using STM32 in industrial products.Do you think STM32 is good choice for this type of public kiosk?Or better use Linux SBC like Raspberry Pi for easier software development?I want something reliable because government/public service devices may run all day without restart.Anyone already build similar public information kiosk using STM32?Thanks for any advice.

I am using an LDL1117S50R fixed voltage, 5 V regulator. I am regulating down from +12V to +5V. Our +12V supply is clean.It’s a pretty simple circuit; one 1 uF capacitor at the input, and one 100 nF, one 1 uF, and one 4.7 uF capacitor at the output. I don’t need an enormous load; 500 mA is sufficient.It was working great at first, but once I reach a load of about 200 mA, it began oscillating unstably at about 2.2. kHz. See the screenshot below. I was using a Rigol electronic load to test this. This problem also appears to be intermittent. See the screenshots below. It’s fine, and then unstable, and then fine again, and unstable. The period of instability is not consistent. My PCB is good. The input and output caps are close to the pins and I’ve used low ESR ceramic capacitors.Does anyone have any idea what this may be?

Hi!I wonder why ST have chosen to implement a 10 kOhm pull-up (R34) on the clock line of the SD-card?I have seen this on the STM32MP257F-DK board from ST.Normally, you chould not have a 10 kOhm pull-up on the clock signal, only the other data/command signals.That’s the reason why the EMI filters for the SD-card e.g ST products EMIF06-HMC02F2 and EMIF06-MSD02N16 does not any pull-up onto the clock signal. 

I require urgent technical support regarding a VIPer22A-based dual output power supply design (5V/800mA and 12V/200mA).I have designed and manufactured the transformer according to my calculations; however, the power supply is not operating properly. I have attached the following documents for your review:Schematic PCB Layout Transformer Design DataI would appreciate it if you could review the attached files and provide your feedback and recommendations as soon as possible, as this matter is highly urgent and is currently affecting our development schedule.Thank you in advance for your support. I look forward to your prompt respons