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Hello Community, I am trying to confirm with you all a design decision for RC based Low Pass Filter that I plan to install on my the UART Rx pin as the STM32G0 Errata mentions this pin has to have a filtered/noise free input to avoid glitches. I am trying to re-confirm what is the input impedance for the UART Input pin on STM32G series MCUs? Is it a fair assumption that all input pins irrespective of the peripheral (ie UART/I2C/SPI etc) have high input impedance in Mohm range? Kindly suggest/share your experience of using RC Filter on UART Rx input.

The directory:STM32CubeWB-v1.19.1/Drivers/CMSIS/Device/ST/STM32WBxxis empty. There should be an "Include" directory here.This missing directory means that some of the BLE programs (BLE AT Server) cannot compile.I was on the P-NUCLEO-WB55.Nucleo platform.The cproject file refers to:<state>$PROJ_DIR$/../../../../../../Drivers/CMSIS/Device/ST/STM32WBxx/Include</state>=====Related problem:directory: STM32CubeWB-v1.19.1/Drivers/STM32WBxx_HAL_Driveralso does not have the Inc directory but  the cproject file has:<state>$PROJ_DIR$\..\..\..\..\..\..\Drivers\STM32WBxx_HAL_Driver\Inc</state>====Bottom line, none of the BLE examples run with v.1.19.1 for the P-NUCLEO-WB55.Nucleo platform. 

There are four DC fans connected the board.  For each, there is a current resistor buffered through an op-amp and then passed to the ADC channel on the STM32G491RET6 MCU. All four ADCs are connected to the same module on four different channels. Software wants to poll into the ADC value periodically and get average (or RMS) current value. This is the code: ADC1 configuration:   static void MX_ADC1_Init(void) { /* USER CODE BEGIN ADC1_Init 0 */ /* USER CODE END ADC1_Init 0 */ ADC_MultiModeTypeDef multimode = {0}; ADC_ChannelConfTypeDef sConfig = {0}; /* USER CODE BEGIN ADC1_Init 1 */ /* USER CODE END ADC1_Init 1 */ /** Common config */ hadc1.Instance = ADC1; hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2; hadc1.Init.Resolution = ADC_RESOLUTION_12B; hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT; hadc1.Init.GainCompensation = 0; hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE; hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV; hadc1.Init.LowPo

I currently try to design a custom PCB using the STM32F303CCT6TR, as I need a lot of IO ports and it fitted the job quite well.I'm a computer science Student so please excuse my lack of in depth knowledge, but I haven't found a solution to the problem yet.As I move components on the schematic I got confused about the Power supply scheme stated in the documentation.(The picture)The connection of VDD to the filtering capacitors, in particular.As the drawing stated 4xVDD to VDD-Source and through 4x100nf + 4.7uf to ground. (with "uf" stands for micro farad)There are multiple ways I interpreted it.1. connect one 100nf to each VDD and further let them share a common 4.7uf capacitor.2. connect each VDD to 4x100nf +4,7uf capacitors, so 5 capacitors per VDD (totaling in 20 capacitors).3. connect each VDD to a 100nf and an 4,7uf capacitor. (as brackets could have be omitted)Further, just to clarify the "+" refers to a parallel connection between the capacitors (it would make the most

Hallo Gurus:Newbie level question..'health issues' making me less efficient, and some pointers to get me started would help a lot.I want to do a software start of ADC conversions with DMA into a circular buffer...when an external trigger (GPIO?) occurs, start a timer, and have timer compare stop the conversion...like an oscilloscope triggered capture with pre- and post-trigger capture?Just pointers into the "RTFM", or app note/tutorial, if possible, not wanting to dump a design exercise on anyone!  

Hello,I am working on implementing secure firmware with OEMiRoT boot on the STM32H563. I have configured I2C1 and TIM1 as non-secure peripherals. While the TIM1 interrupt works as expected, I am encountering an issue where the I2C1 slave interrupt handler is never entered. (Note: The I2C slave works correctly if TrustZone is disabled.）I am wondering if the I2C1 slave interrupt handler requires special handling when configured as a non-secure peripheral with TrustZone enabled?Additionally, if I need to change the start offset and application size for secure and non-secure applications, what changes are required beyond updating flash_layout.h in OEMiROT project?Any assistance on these issues would be greatly appreciated. Thanks,Ivan 

Hi folks,I am currently testing the VL53L0X sensor and reading the datasheet. Is the current consumption of the sensor 19 mA in the single ranging scenario, or is it calculated for continuous ranging? I'm not clear on this point.Thanks!

Hello, Where can I find hardware configuration for BLE examples in case of development and production? Particular for STM32WB BLE-HID.

Hi,      I need LIN driver library files for SPC584B70E5 microcontroller, please do the need full. Thanks.

In my project, I have a TCP/IP server application running. My main problem is that only one client can connect to the same IP and port at the same time. My project requirement is that multiple clients should be able to send queries to the same IP and port. I can achieve this structure with LWIP, but I couldn't set up the same structure with Azure RTOS NetX. One client works without a problem, but multiple clients cannot send queries. What can we do about this?

Hello ST Community,I am currently working on a project using the Nucleo-H753ZI without an RTOS, and I have followed a tutorial by Controllers Tech to set up TCP/Ethernet. I am using Static IP assignment.I can Transmit and Receive data though Hercules Tool. However, when I try to use the ModbusTool for TCP connection, the STM32 does not seem to receive any data.Problem Description:Ethernet setup is successful, and data transfer works with Hercules software.Using ModbusTool for TCP connection results in no data being received by the STM32.Configuration Details:While following the Controllers Tech tutorial, I noticed some differences in the CubeMX configuration options compared to what was shown in the tutorial. Despite these differences, I managed to configure the Ethernet settings and get it working for data transfer using Hercules software.Differences:I have used RMII instead of MII.I do not have Rx Buffer Address option in Ethernet Parameter Setting.Steps Taken:Followed the Controller

Good afternoon, I am currently working with the STM32WB5MMDK. Upon verifying the documentations, I couldn't find any mention of a JTAG interface for debugging purposes. I wanted to know if the JTAG pins can be used for programming and debugging as SWD pins.   Could you please confirm whether the JTAG interface is available for debugging on the STM32WB5MMDK? Thank you,   Best regards Nour

Hello,Can someone provide me the failure rate (fit) of this Schottky diode? I'm updating our database and couldn't find this information on any datasheet / report.PN:  BAT30SWFILMIf the number isn't available could someone provide a guide of how to calculate for this specific component?Thanks in advance,

Well, I'm new to the STM32. I'm developing vibration and temperature sensors, which used to be equipped with an atmega.With the new demand for processing I decided to upgrade by putting an STM32L0 in place of the old controller.The problem is that now I can't use my CUBE Programmer to connect to my board via Nucleo's STM Link.An error message appears whenever I click Connect, and my Nucleo board flashes red.I think I may have made a connection or PCB design error.Information:My system has 1 accelerometer 1 temperature sensor 1 Lora radio 1 battery sensor and a 3v3 regulator.The clock has been set to 25KHz by means of an Oscillator Crystal.and the BOOT0 pin is not connected to anything other than the pull-down resistor.

Hi,how do you implement a scrollable text box? i.e. a text box where the text is too long to display in the available area so the user needs to scroll down like in a mobile phone?Is this done fully by TouchGFX or do I need to write a lot of code behind it to do the display and the scrolling?Thank you :)

Hi ST-CommunityI am working on CAN Communication in F103When I am de-initializing properly , But when , I am reinitializing it is not workingPlease tell me how to reinitialize CAN Communication if (0 == HAL_GPIO_ReadPin(BRAKE_GPIO_Port, BRAKE_Pin)) { Display.out.brake = 0x20; ControlVals.brakeStatus = 1; if (Communication.CAN_D_I == 0) { if (HAL_CAN_DeInit(&hcan) != HAL_OK) { Error_Handler(); } Communication.CAN_D_I = 1; } else { Display.out.brake = 0x00; ControlVals.brakeStatus = 0; if (Communication.CAN_D_I == 1) { if (HAL_CAN_Init(&hcan) != HAL_OK) { Error_Handler(); } Communication.CAN_D_I = 0; } } }  

I'm trying to use STPM32 with XZM-CT50A01, and the series resistor = 6.2 ohm. I thought ks = Rb/N = 6.2/1000. But I cannot measure the expected current.The load was 50mA but STPM32 respond 1.2A.The software may be OK because we have confirmed with EVALSTPM33.I'd like to know the Ks setting is correct or not. Maybe our board has already damaged, or the board has cold soldering??Can you advise me if the Ks calculation is correct?  

Hi all,I have noticed a difference between LAN8742 datasheet and the circuit on STM32F746 Discovery board.This is an extract of the schematics of the demo board:The pull-ups R90 to R93 are directly connected to "3V3"whereas in the LAN8742 datasheet (Revision 1.1 (05-21-13)) they are all connected through a ferrite to "3V3":   Was this an error of the developers of the Demo board or simply a better solution ? If in the latter case, why ?   

Dear all,does anyone have experience with setting analog output signals via Zephyr RTOS? I managed to get the D/A conversion on the Nucleo H723ZG to run via STM32CubeIDE, but I’m running intro trouble when using Zephyr. Apparently a "DAC" driver is required, however the documentation is not very clear.Thanks 

Hello,I have created my own board in zephyr (using STM32U575).Now I would like to configure the power mode pins (CSLEEP, CDSTOP, SRDSTOP ) in the devicetree of the board.I have therefore implemented the configuration for the pins in the .dts file: &pinctrl {    csleep: csleep {        pinmux = <STM32_PINMUX('A', 5, AF0)>;    };    cdstop: cdstop {        pinmux = <STM32_PINMUX('A', 6, AF0)>;    };    srdstop: srdstop {        pinmux = <STM32_PINMUX('A', 7, AF0)>;    };};However, the pins are not set correctly with this setting alone.Normally, the pins should now be assigned to a periphery.If I now assign these pins to any periphery, it works: &lpuart1 {    pinctrl-0 = <&lpuart1_tx_pa2 &lpuart1_rx_pa3 &csleep &cdstop &srdstop>;    pinctrl-names = "default";    current-speed = &l

Hello everyone !My problem is quite simple. I'm just trying to display text on the GFX01M2 LCD screen which is plugged into my NUCLEO-L452RE-P card.I created a project from STM32CubeIDE and then imported the screen drivers from the NUCLEO-U083RC + GFX01M2 example on TouchGFX.I have configured all the peripherals necessary to operate the screen (both spi, dma etc...)You will find a photo of my microcontroller configuration.I haven't found an example that uses this microcontroller. Can you help me ?THANKS :)

Hello everyone,I made a yocto based build using stm32mp1. After compiling, I followed these steps: I created 5 different partitions in the SD card. These are as follows.  I uploaded the following files to the partitions I created, respectively.sudo dd if=arm-trusted-firmware/tf-a-stm32mp157d-dk1-sdcard.stm32 of=/dev/sdb1sudo dd if=arm-trusted-firmware/tf-a-stm32mp157d-dk1-sdcard.stm32 of=/dev/sdb2sudo dd if=fip/fip-stm32mp157d-dk1-fastboot-sdcard.bin of=/dev/sdb3sudo dd if=st-image-bootfs-poky-stm32mp1.ext4 of=/dev/sdb4 bs=1Msudo dd if=core-image-minimal-stm32mp1.ext4 of=/dev/sdb5 bs=1MLater, when I connect to the DK1 board, I get the following error.When I examine the Flash layout files, I think it does this because it cannot find the FWU_MDATA files. But I don't know the size of the partitions I allocated for FWU_DATA and what type they will be (Linux file system or microsoft basic data). Can you help me with this? Which partitions are missing and what should their file typ

I have tried setup STM32G071 Sink port and connected with Apple 140w. I want to request 140W but it's seem STM32 not yet supported EPR mode in PD core. Do you have any examples for EPR in STM32?

hello,expertorI wanted save lillte data about 2K,to stm32F407_ve internal flash.but,i study demo about FLASH_EraseFlash,it only have erased sectores.F407 ve have 4(16K) sectores,1(64K) sector and 3(128K) sectores.its waste for only 2K data.have others ways?why not have erase page(2K)?in HAL api fuctoionesthanks

Hi,I have a STM32HSM-V2AE and I tried to follow de "SFI Step-by-step on STM32 boards". In the part of "HSM programming" I connect the STM32HSM-V2AE to the computer with the smart card reader ACS ACR39U-UF but I have the following error:Error: HSM initialization error 0x88000002 What I have to do to continue from this step onwards?Greetings and thanks in advance.