Solved

Hi Team,I have used this part EMIF06-MSD04F3 in my design.Now i'm moving ahead for production.Is there any drop in replacement or recommended alternates?Thanks Manikandan R

I have some Pulse induction metal detector analog designs that I want to "digitalize" using a Stm32f407vet6 board. Unfortunately, these designs use the battery positive as ground. My intention is to power the Stm32 from the +5v rail of the detector power supply and then use logic in the Stm32 to generate the pulse timings and to read the preamp output with the ADC to check for metal detecting and eventually add some kind of discrimination logic.My problem is the detector design that uses VB+ as ground so how can I power the stm32 properly and also give the ADC correct vref ?I attached the pulse induction detector schematic I want to use as base and also the stm32f407vet6 schematic.Thanks for the help.

Today I bought a new NUCLEO-H563ZI board and downloaded the STM32CubeH5 main software package from www.st.com. But when I compile the example "STM32CubeH5 main \ Projects \ NUCLEO-H563ZI \ Applications \ NetXDuo \ Nx_UDP_Cho_Server" with IAR, it prompts that some files is missing. I had to download the missing files from elsewhere and put them in. Finally, the compilation passed, but after burning the out file into the board, the program could not run properly. After debugging, it was found that there was a DMA error in the Ethernet. I changed an other example to compile, burn, and debug. the same mistake. I don't know how to solve it. By the way the net cable and the led of the ethnet socket CN14 is ok. Can ST provide a complete examples package for the NUCLEO-H563ZI board?   Title edited by ST moderator to reflect the content of the post.   

I did not understand the significance of the number 65536 in the below codepHandle->OvfFreq = (uint16_t)(pHandle->TIMClockFreq / 65536U); /* Set fixed to 150 ms */ pHandle->HallTimeout = 150U; /* Compute the prescaler to the closet value of the TimeOut (in mS )*/ pHandle->HALLMaxRatio = (pHandle->HallTimeout * pHandle->OvfFreq) / 1000U ; /* Align MaxPeriod to a multiple of Overflow.*/ pHandle->MaxPeriod = pHandle->HALLMaxRatio * 65536UL;My main confusion is how the OvfFreq with division of 65536 help the code to reduce the calculations. According to my understanding if TIMClockFreq = 170MHz then the time is T = 1/170Mhz i get overflow after 65535, so if the number of overflows are OverflowCnt then the total time elapsed will be 65535*1/170MHz*OverflowCnt + Input capture timer registers. 

Hi all,Please help to point me where I did a wrong.  I have different widget on the main screen, and when I switched back and forth, the main screen (where there are most widgets implemented) intermittently not display all the widgets.  Sometime I got text box not display, sometime I got the toggle button not display but just show the rectangular box showing the button box.  For example, in this picture, the whole square box (this is the area for the toggle button) dis empty showing the gray area.The behaviors seems like the widgets not display are the one toward the end of the widgets list.  

Hi everyone. I have a STM32H745I-Disco board and I am using both TouchGFX and CubeIDE to make a project with the board. So the issue I am encountering is that when I wrote or made some adjustments in the both applications the project seems fine (when i built the project in CubeIDE it gave 0 errors or the simulator in the TouchGFX worked just fine) but when I try to debug to project in to the board using the debugger in the TouchGFX the application shows it debugged just fine but there is nothing showing up on the board afterwards. When I try to debug a blank new created project it shows up on the screen but when I'm trying to debug a project with some images or fdcan codes with it the issue I've just said shows up. I don't know what's the problem.

Hello,I have developed a custom board based on the MB997E reference design, which uses the EMIF02-USB03F2 for USB EMI filtering and ESD protection. Since this component has been declared obsolete, I would like to know:What is the recommended replacement part from STMicroelectronics for EMIF02-USB03F2?If no direct replacement exists, what are the suggested alternative solutions (e.g., other ST EMI/ESD filter ICs, or combination of discrete ESD diodes and common-mode chokes) that can be used in new designs?Are there any application notes or migration guidelines provided for updating designs that currently rely on EMIF02-USB03F2?This information would help me update my design to ensure long-term availability and compliance.

Hi,  I'm trying to use my P-NUCLEO-WB55.USBDongle with the BLE_TransparentModeVCP_reference.hex firmware.Following the documentation I have updated FUS and installed the latest (V1.23.0)  stm32wb5x_BLE_Stack_full_extended_fw.bin wireless firmware:   Afterwards, I flashed BLE_TransparentModeVCP_reference.hex, put SW2 into run mode and reconnected the dongle. It shows up in device manager as a COM Port, but connecting with STM32CubeMonitor-RF fails:I also tried building the TransparentModeVCP Firmware from source, but it fails the same way. What am I doing wrong? 

What is the default value of HP_SLOPE_XL_EN in the CTRL8_XL (17h) register of ASM330LHH?

Hello, I am using the STM32CubeMonitor software for the first time and find it very helpful. My question is about the root cause for erroneous zero values in the time series displayed by the STM32CubeMonitor software. It's first first use was monitoring the joystick x/y displacement signals of the Adafruit Gamepad QT. Question: What is the root cause for the phenomenon of erroneous zero values? Are parameters in my Basic Flow configuration incorrect? (Note: the zero values are not consistently present in the graphs, sometimes the signals are 'clean'.)Question: where are the Monitor Flow files saved on disc (Windows 11).Technical details:Figure 1 shows the test setup with the Gamepad and the Nucleo-G071RB board. Pairs of 16-bit data points were received by the Nucleo board using the I2C protocol (hi2c1). I confirmed that the x/y signal integrity was good: no outliers or erroneous values were received by the Nucleo board, the I2C master.Figure 2 shows a Basic Flow used with the

I use STWD100NY Watchdog IC and for now, i can not achieve what i want. The problem is about to get output from the WDO pin. I did not connect the WDO to the MCU but i connect it to drive a relay. I set up my timer to 4 seconds. Even if it exceeds the twd time, i can not get the signal from WDO pin. I attach my drawings below and needs your help. My Vcc is 5V( most setups use 3.3v but i think that i can choose it 5V according to datasheet ). R25 and R26 resistors are optional.

Hi ST Community ,Does this position of the board and the copper zone is OK for the STM32WB5M MCU and the antenna ? because all dev boards from ST places the MCU on the PCB's edge . Thank You !#STM32WB #Hardware #Antenna

I use keilMDK V5.42.0 and follow  apnt-333  to make a FLM file, and successfully got a FLM, when I use in my app Project,my internal flash works well but external flash got an error shows  ---------------------------CMSIS-DAP - Cortex-M Error---------------------------Sector (0): Address not Zero!D:\RnD\Keil\ARM\flash\stm32h723FLM.flmI checked all over again, I don't know how to deal with it, I search on internet but no result, can anyone help methank and thank

Hi team, We are working for redesign board which should not have any China parts, so we are looking for non-China origin / manufactured part.Could you please confirm the below details for LDO part - LDFMPVR1) Country of origin (Manufacturing / Assembly / Testing)Thanks,Radhika S

Hey everybody,I was wondering if someone could help me correct my firmware that I've written.I created a custom board using the STM32C011F4P6 MCU. I put an FTDI UART-to-USB converter on the board to be able to view outgoing messages from the custom board on my laptop. While writing the firmware needed to demonstrate this functionality of the board, I referenced the C011 reference manual. There, STM describes the following steps to take when transmitting a character via USART, on page 752. I have tried to follow their advice to the best of my ability, but I notice that my board hangs while waiting for the transmission of a character to complete.My testing code (in my main.c) is shown below:int main(void) { char msg[] = "d"; // initialize debug LED user_led_init(); // initialize the usart usart_init(); while (1) { // transmit string of characters (one character here) usart_write_chars(msg, strlen(msg)); toggle_led(); delay_ms(500); } return 0; }Here are the defin

Hello, I have made my own STM32F732RET6 board that has a USB FS configured as a Stereo, 24 bit 48kHz Audio Interface and SAI2 connected to an SN75176BDR (Differential Bus Transceiver IC) because I want to transmit AES3-AES/EBU (same as SPDIF) audio data coming from the USB). So USB Audio -> SPDIF TX. Problem is I cannot get it to work right and ALWAYS get noise in the output signal (I have hardware that can receive AES3-AES/EBU so I can hear it). I am suspecting this is a clock issue where the frequency of the SPDIF signal is not high enough to support 24 bit stereo 48kHz, from what I've read, this would require an SPDIF frequency of 6.144MHz. I don't know if "Real Audio Frequency" in the .ioc "Pinout & Configuration" on SAI2 should match this number (6.144MHz) or the Audio Sampling Frequency (48kHz). I cannot get "Real Audio Frequency" to be exactly 6.144MHz. I don't know if this should be the frequency the the SAI2 Clock Mux outputs (SAI2 Clock Mux sources from PLLSA

stm32wba55g-dk1Subject: Support Required – BLE_Audio_PBP_Sink Auracast Receiver Not Visible on MobileHi Team,I am currently working on the Auracast project using the STM32WBA55G-DK1 board.In this setup, the board is configured as the receiver side (Sink). After building and flashing, the board is expected to appear as AURACAST SINK STM32Auracast1, 2, 3, etc.The project code location I am using is:/home/engineer/Music/STM32CubeWBA/Projects/STM32WBA55G-DK1/Applications/BLE/BLE_Audio_PBP_SinkI have also tested with the following smartphones that support BLE Audio / Auracast:  but not able to  see device  information related  to receiver  side device  in phoneGoogle Pixel: Pixel 7 / 7 Pro, Pixel 8 / 8 Pro, Pixel 9 / 9 Pro / 9 Pro XL / 9 Pro FoldOnePlus: OnePlus 11, 12, 13Issue ObservedAfter building and flashing the board, I am not able to see or connect to the advertising device from the mobile phone.Verified with different Android versions and Bluetooth vers

I am working with the STM32WB55VGQ6 and using the V1.23.0 / 02-June-2025 STM32WB Copro Wireless Binaries. Specifically,  stm32wb5x_FUS_fw.bin @ 0x080EE000 and stm32wb5x_BLE_Stack_full_fw.bin @ 0x080D0000.The STM32WB BLE API (hci_le) provides the function to read the values for the version information for the local Controller (`hci_read_local_version_information`).Per the BLE Core 5.4 spec:The HCI_Version information defines the version information of the HCI layer. The LMP_Version information defines the version of the LMP. The Company_Identifier information indicates the manufacturer of the local device.The HCI_Subversion and LMP_Subversion are vendor-specific.Since the Bluetooth Core Specification defines these as vendor-specific, could you please provide documentation on how to interpret them for your devices?Specifically, I'd like to know:Where are these values documented?How can we decipher them to understand details like the silicon revision or firmw

Dear Team,Could you please provide the reference design schematic of STM32WBA5MMG module.I check the documents section.Did not find anything.RegardsHari

Hi, I am trying to use the VL53L7CX to do gesture detection for a household product. A few questions:Do these software downloads only run on a Windows PC? https://www.st.com/en/embedded-software/stsw-img035.html ? I am trying to do embedded development and gesture recognition on a microcontroller.Are the "gestures" recognized only static signs, like a thumbs up, heart, etc? Or does ST have software or firmware written to recognize dynamic gestures, like a wave left, wave right, etc?I am trying to write my own gesture recognition code to run directly on an embedded microcontroller. There seems to be a lot of spurious or incorrect distance data. Currently I am filtering for 1) distances not too close or too far 2) signal_per_spad must be sufficiently high and range_sigma_mm must be sufficiently low and 3) target_status = 5. Still I get bad or fake distance data.What environmental variables could cause spurious or fake distances measurements? Reflected or ambient light?I have tried using

So I want to use a capture compare to measure an input frequency 0.1Hz to 100kHz. Peripheral clock is set to 32MHz to cover full range and maximise speed of calculations. At lower frequency I have to count the number of times the over capture call-back is called, to put into the calculation. However there are a few frequencies where the over capture and edge detection IRQs have a beating effect, I have delt with this on other processors by ensuring the order IRQs are delt with but it doesn't seem to be working here.Sometimes the last over capture is called first, other times in is not, leading to a large jump in my calculated result. As anyone any experience with this issue on the STM32 TIM peripherals?/****************************************************************************** Function : Calculate_Frequency Return : Frequency post calculation as a float *****************************************************************************/ #define TIMCLOCK 32000000.00 //System clock value

Hello,Sorry if it's a *** question but I don't understand something.I want to have an HID and MassStorage usb device. I've seen that ST add USE_USBD_COMPOSITE but I don't understand why we use it for USBD_ClassTypeDef.For me, we have 1 device desc + 1 config desc with 2 interfaces, it's not enough to have only 1 class (with init, setup, dataIn, dataOut, getHsDesc) and put 2 registerInterface in MX_USB_DEVICE_Init and an if(epnum == HidEp) else if(epnum == MscEp) in dataIn and dataOut ?I think I missing something.Thank you for your answer.

Hello,I'm building a BLE receiver using an STM32WBA55CG.The device should only receive BLE advertising packets, never transmit, so I've put it in a "central" role. The device will be used very close to sensitive equipment, so it is very important that the radio never transmit.Despite being configured as a central, and having not called any functions which I would expect to transmit (such as scanning), I am seeing two different RF emission events from the radio:A "chirp" as soon as the device is powered onMultiple "blips" some time later at random intervalsThe "chirp" is a fairly quiet burst, which seems to rise in frequency across the 2.4-2.5GHz ISM band. I assume this is some kind of calibration/set-up, as it's always emitted as soon as HOST_BLE_Init() is called, from what I can see. This is manageable, as I can block the RF path when powering on/initialising the receiver for a few seconds, which should be sufficient to prevent this being emitted over the air.The "blips" are more trou

Good morningI must project a board in this way:This baord will be connect to usb -c of the computer.There will be a converter 5V --> 3.3V.A MCU with bluetooth and antenna integrated.The goal is: the computer must recognize the board like USB serial Port (COMx) like a FTDI? So.. not virtual COM.My question is: can the computer recognize STM32WB5MMGH6TR like a serial USB serial Port (COMx)?Does it need some drivers about it?

I'm using tcpp01-m12 and stm32u5 borad to develop a UCPD sink application.The UCPD module seems works fine, and I can request selected voltage from source.But when I closed the MOS which controlled by tcpp(mcu set tcpp ctrl pin high), the vcc output voltage still have about 500mV.Is this a Characteristics of MOS tube, or any hardware design suggestion?