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Hello,I need to power the NucleoF103 development board using an external 3.3V power supply. I have read in the NucleoF103 manual that this is possible by removing SB2 (to disconnect the voltage regulator output) and SB12 (to disconnect NRST). I also have read the schematics of the board and it looks that the power supply for the microcontroller (VDD) is provided by 3.3V connector through the JP6 jumper. Is the same thing if I mantain SB2 connected, remove the JP6 jumper and provide the 3.3 power supply to the pin of the JP6 jumper instead of the 3.3V pin of the Arduino connector? Moreover, what is the reason for disconnecting NRST by removing SB12? I have already programmed the board using ST-Link before switching to the external 3.3V power supply. Is there any other way to proceed without removing SB12 (for example connecting T_NRST on CN4 to ground)?Thanks.Marco 

Hello.After updating STM32CubeIDE to 1.15.0 I faced this problem :(I can't run or debug any projects. Of course, software for STLink was updated.Hope, someone has a solution. My console includes this information:Encountered Error when opening ..........\com.st.stm32cube.ide.mcu.externaltools.cubeprogrammer.win32_2.1.200.202311302303\tools\bin\STM32_Programmer_CLI.exe Main alertError in final launch sequence:Failed to execute MI command:load ...........\\G030F6_test2\\Debug\\G030F6_test2.elf Error message from debugger back end:Error finishing flash operationFailed to execute MI command:load ...........\\G030F6_test2\\Debug\\G030F6_test2.elf Error message from debugger back end:Error finishing flash operationFailed to execute MI command:load ...........\\G030F6_test2\\Debug\\G030F6_test2.elf Error message from debugger back end:Error finishing flash operationError finishing flash operation 

Hi,I'm trying to use an interrupt with CMSIS_RTOS2. The user button is configured to use as an interrupt source:When I push the button, the system freezes. I suspect the interrupt flag doesn't get cleared but I have no idea why.There is nothing (yet) in the callback function:This works fine in normal working mode but it freezes when I'm working in CMSIS-RTOS2. I have no idea why this happens.I'm working on a 32F746GDISCOVERY board.

Hi. I am using STM32L010C6tx processor. I drew the circuit myself. I did SYS-> debug serial wire. I was able to install without any problem. But sometimes "Memory Programming...Opening and parsing file: ST-LINK_GDB_server_a14408.srec File : ST-LINK_GDB_server_a14408.srec Size: 19268 Bytes Address: 0x08000000Erasing memory corresponding to segment 0:Erasing internal memory sectors [0 150]Error: failed to erase memoryError: failed to erase memoryST-LINK device status: UNKNOWNCM3 Failed to print all registersFAILED to REGISTER Values ​​from the targetDebugger connection lost.Shutting down..." I'm getting it. I can't fix it. Any ideas?

Hi Team,I'm using Nucleo - L496ZG board in our project.Whenever I connect the USB cable to the CN1 connector, the ST-Link isn't detected.I have checked the ports on Device Manager and it shows Jlink instead of ST-Link.I am attaching the image for your reference. Awaiting for your response!  Thanks & Regards, Sneha K

Hello ST Microcontroller Forum Community,I hope this message finds you well. With the invaluable assistance of this community, I’ve been able to successfully write a simple GPIO code to blink the LED on my AEK-MCU-C1MLIT1 board. I’m grateful for the support, as it has significantly boosted my confidence in handling GPIO operations.Currently, I have the LED_4, LED_3, and LED_5 toggling as desired. However, I’m now seeking guidance on integrating a user switch/button with the existing code. Specifically, I aim to initiate the LED toggling sequence when the button is pressed.If anyone could provide assistance in integrating the button with the code and share the necessary PinEditor configuration for the button, it would be immensely appreciated. Additionally, any accompanying code snippets or instructions would be incredibly helpful.Thank you in advance for your support and expertise.Best regards,Ali

I want to receive the data from one nucleo board through CAN protocol and it should trigger the DMA and shuffle the received data and transmit back again to another board.In ioc configuration I am unable to enable the DMA (peripheral to memory and vice versa), it is showing like Memory-to-memory configuration. Manually I added the DMA configuration and trying to link the DMA with CAN peripheral, it is showing error like CAN_HandleTypeDef has no member named 'hdmatx'

I am using STM32_Programmer_CLI and need a list of all possible error codes.  Where are they located?

Hi, I'm using an STM32F439ZI (on a nucleo board) and connected a Zaber stage with its encoder to it. When disconnected, I can measure the A & B signals schanging from GND to 5V. I currently cannot paste an image from the scope but I've lookerd at them before and the quadrature output looks as expected with no pullups or pull downs required. I hooked the signals up to pins PE9 & PE11 and set TIM1 up to Encoder mode:  and the TIM1_init() looks like this:  static void MX_TIM1_Init(void) { /* USER CODE BEGIN TIM1_Init 0 */ /* USER CODE END TIM1_Init 0 */ TIM_Encoder_InitTypeDef sConfig = {0}; TIM_MasterConfigTypeDef sMasterConfig = {0}; /* USER CODE BEGIN TIM1_Init 1 */ /* USER CODE END TIM1_Init 1 */ htim1.Instance = TIM1; htim1.Init.Prescaler = 0; htim1.Init.CounterMode = TIM_COUNTERMODE_UP; htim1.Init.Period = 65535; htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim1.Init.RepetitionCounter = 0; htim1.Init.AutoReloadPreload = TIM_AUTORE

in NFC readers product selection page the "interface to host" feature for solutions ST25R3916, ST25R3916B, ST25R3917B, and ST25R3919B is listed as "SPI" only, But when I open the product page of these solutions I find that they support both SPI and I2C protocols and they are listed under the "External Communication" tab. Which one should I believe?P.S: The Datasheets of these solutions are grouped with other solutions which already have both I2C and SPI support so they don't solve this conflict "e.g: the same datasheet is for both ST25R3916 & ST25R3917, but ST25R3917 is already approved to have both SPI & I2C interface to host by product Selection tab while ST25R3916 is featured as SPI only in the product selection tab".

Hello,I want to ask a question about internal buck switching converter of STSPIN32G4.We want to use its output voltage of 10V or 12V to supply an external potentiometer.Is this converter indicated to use for power supply external devices requiring 10mA about? Thank you in advanceBest Regards,Federico Flammini

Thanks to SofLit, I managed to create a new project from a configured .ioc file. The next objectif is to see if I can read CAN data from an instrument cluster I have on my bench.I am attempting to read the data from STMCubeProgrammer. I can connect to my Nucleo board and read device memory. I have connected my Nucleo board with external VIN; as I understatnd ground reference for CAN requires all components to be connected to this same reference.The data seems to be going in a loop, but nothing changes when I select Live Update.Do I need toset up filters if I want to see all data on the bus?Can I use STMProgrammer for such data reading?

Hi,I am working with STM32G491RE.I communicating  ATM90E26 single phase energy meter with STM32 through SPI communication.I can able to read voltage ,current values correctly from the meter.For KWH calculation, I am reading Absolute active energy register for kwh values. In the datasheet they mentioned the values I receive from the energy register are pulses.  how can I convert pulses to kwh. can anyone suggest?my pulse constant value is 1000 imp/kwh. From the datasheet they mentioned register will be cleared after read.For that I am following below process  uint16_t Em_kwh=0; uint16_t Em_kwhcharging=0; uint8_t kwh_power[2]={0x00,0x00,0x00}; Em_kwh=GetAbsoluteActiveEnergy(); //to read the register its working properly Em_kwhcharging=Em_kwhcharging+Em_kwh; // I am converting above decimal value in to hex values void ConvertDecimalToHex(int decimalValue, uint8_t* res) { res[0] = (uint8_t)((decimalValue >> & 0xFF); // High byte res[1] = (uint8_t)(deci

Hello there,   I am working on a project using an STM3240G-EVAL board which as the STM32407IGH6 MCU on it. In this project, I want to use USB-OTG-FS to connect an external USB microphone to the board and then store any information sent into the microphone into the 16 Mbit SRAM that is on the board. However, I am struggling on figuring out what pins I need to enable to get this functionality working. I am also open to hearing other ideas on how to go about this project. For example, do you suggest using DMA and ADC instead to get the microphone data. At the end of the project I need to be able to use the SRAM, an external microphone and an external speaker to playback audio as well.  Any help would be really appreciated as I am on a little bit of a time crunch and unsure what pins to enable. I am using STMcubeIDE with STMcubeProgrammer and STMcubeMX on MAC OS to run this project.     

Hi,I am using STM32G491RE MCU for my project. Is it true each STM32 IC has its own unique ID. For STM32G4 product has the UID facility. Is it 96-bit ID for all the stm32 families or is it different.Which manual has to be referred for this?If yes can I use that for serial number for the product.Which memory location is it stored?Can read that from IC and send it through UART?Can anyone suggest.Thanks

I am working on OTG FS application on stm32f769 discovery board, as per the it's schematic for OTG_FS VBUS power supply will be taken care by External Phy(see below image). So as per that I configure the STMCUBE IDE, and i disabled the VBUS_Sensing also. and started the debug process. I noticed that it is getting failed. Inside this USBH_Process in 1st switch case i.e. HOST_IDLE case there is one if condition, that is getting failed.   USBH_StatusTypeDef USBH_Process(USBH_HandleTypeDef *phost) { __IO USBH_StatusTypeDef status = USBH_FAIL; uint8_t idx = 0U; printf("inside usbh process\n"); /* check for Host pending port disconnect event */ if (phost->device.is_disconnected == 1U) { phost->gState = HOST_DEV_DISCONNECTED; } switch (phost->gState) { case HOST_IDLE : if ((phost->device.is_connected) != 0U) { printf("USB Device Connected"); /* Wait for 200 ms after connection */ phost->gState = HOST_DEV_WAIT_FOR_ATTACHMENT; USBH_Delay(2

I'm having problems to be able to establish the connection between STEVAL STWINBX1 and ST MEMS Studio software, with either of the two available ways (BLE or Serial port). In the first case, mainly the board won't be shown to select. In case it does, after trying to connect it, an error message appears: "Can't open the board". In  the second case, the board always appears to be selected but once I try it, an error message is shown which says "Board not identified". I'm not able to connect it no matter what I try. As said in the user manual relative to the software, this board can only work for the AlgoBuilder functionality, not for a full or partial sensor evaluation. It has to be said that the board works perfectly through BLE on the IOS App. Am I missing something? Sound strange to me. Maybe is just non-compatible or maybe it's a firmware issue (which I think it's not the case). Any suggestion will be very helpful.

The datasheet say:USB on-the-go high-speed (OTG_HS)     The devices embed an USB OTG high-speed device/host/OTG peripheral with integrated transceivers. The OTG_HS peripheral is compliant with the USB 2.0 specification and with the OTG 2.0 specification. It has software-configurable endpoint setting and supports suspend/resume. This interface requires a precise 60 MHz clock that is generated from the internal USB PHY PLL (the clock source must use a HSE crystal oscillator).    But now I have tried it, it is also possible to use HSI as the clock source, is this a special case or can it indeed be used as the clock source? If the product is released in batches and the HSI is used as the USB HS clock source, will it often fail and the yield rate is not high? 

I am using Zigbee for wireless communication using Zigbee_OnOff_Router_NVM as a reference. The problem I am currently facing is that if I turn off the Router for a long time, it may take about 20 seconds for the data to reach the Coordinator the next time it is started. What can I do to reduce the time it takes to reconnect? Help me.

Am testing the x-cube-sbsfu on H7A3 (using H7B3 project with OTFDEC disabled).  After enabling SFU_MPU_PROTECT_ENABLE, I always ran into mem manage fault when the function HAL_RCC_GetPCLK1Freq is called during HAL_UART_Init: An MPU or Execute Never (XN) default memory map access violation has occurred on an instruction fetch (CFSR.IACCVIOL, MMFAR). The MPU setting for RCC is as below:/*** @brief Region 1 - Enable the read/write operations for RCC peripheral area in privileged mode.* Execution capability disabled* Inner region inside the Region 0*/#define SFU_PROTECT_MPU_PERIPH_2_RGNV MPU_REGION_NUMBER1#define SFU_PROTECT_MPU_PERIPH_2_START RCC_BASE#define SFU_PROTECT_MPU_PERIPH_2_SIZE MPU_REGION_SIZE_1KB#define SFU_PROTECT_MPU_PERIPH_2_SREG 0x00U /*!< All subregions activated */#define SFU_PROTECT_MPU_PERIPH_2_PERM MPU_REGION_PRIV_RW#define SFU_PROTECT_MPU_PERIPH_2_EXECV MPU_INSTRUCTION_ACCESS_DISABLE#define SFU_PROTECT_MPU_PERIPH_2_TEXV MPU_TEX_LEVEL0#define SFU

Hi    I am here to seek help from the community.I am a Research Student I just want to know how to send  ADC values from one  STM32F446RE to other  STM32F446RE (i have two). and I am using MCP2515 Transceivers at both ends. need help in this    thanks. Murali.    

I have a small amount of per-device data (e.g. hardware revision, serial number, manufacture date) that I would like to store persistently in an STM32G030 without consuming a 2K flash sector.  Obviously one option is OTP, but I'm curious about the Flash Option bytes and have a few questions:1. What option byte addresses (if any) are available to hold user data.  The manual indicates that there are 128 option bytes at 0x1FFF7800, writable as 64-bit double-words.  The manual also shows a memory map listing the purposes of bytes 0x1FFF7800..0x1FFF782F, but no information is given about locations 0x1FFF7830..0x1FFF787F and I'm hoping those are available.This site (https://wiki.segger.com/ST_STM32G0) indicates that the STM32G0x0 only has 96 option bytes from 0x1FFF7800 - 0x1FFF785F rather than 128; I don't see anything about this in the manual; is it true?  In that case, the available range might be 0x1FFF7830..0x1FFF785F. From a stock uC, I note that the words at 0

Hi,I am getting warning as build output as below. phaseBegin and phaseEnd is of type uint16_t. But, I typecast it as pointer variable to point uint8_t, because HAL_I2C_Mem_Read expects that argument to be pointer to uint8_t data.My code is here.Could you please help me resolve ? 22:02:55 **** Incremental Build of configuration Debug for project PCA9685 **** make -j8 all arm-none-eabi-gcc "../Core/Src/PCA9685.c" -mcpu=cortex-m4 -std=gnu11 -g3 -DDEBUG -DUSE_HAL_DRIVER -DSTM32F407xx -c -I../Core/Inc -I../Drivers/STM32F4xx_HAL_Driver/Inc -I../Drivers/STM32F4xx_HAL_Driver/Inc/Legacy -I../Drivers/CMSIS/Device/ST/STM32F4xx/Include -I../Drivers/CMSIS/Include -O0 -ffunction-sections -fdata-sections -Wall -fstack-usage -fcyclomatic-complexity -MMD -MP -MF"Core/Src/PCA9685.d" -MT"Core/Src/PCA9685.o" --specs=nano.specs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mthumb -o "Core/Src/PCA9685.o" In file included from ../Core/Src/PCA9685.c:9: ../Core/Inc/PCA9685.h:26:9: note: '#pragma message: i2c

Hi,This is my first post on the forum so my apologies if I’m doing something wrong.OS:Windows 10 64-bitSoftware:STM32CubeIDE 1.14.1Motor Control Workbench 6.2.0ST Motor Pilot v1.2.4Hardware:Dev Kit:                      P-NUCLEO-IHM002Control Board:            NUCLEO-F302R8MCU:                          STM32F302R8Power Board:              X-NUCLEO-IHM07M1Motor:                         Bull Running BR2804-1700kv Problem Description:The motor does not spin when I run the profiler using Motor Pilot v1.2.4. I can see the mo

I am migrating a project from STM32F373 to STM32G473. I can program the new part successfully, but I don't see PWM . The PWM values are written in user created code and I can read them back via the STLink, so I know that the part at least begins running. I'm not sure if there are new settings that may be defaulting to the wrong values that are preventing outputs. (I see only 0v for PWM) I configured everything via CubeMX and I added the below user code to enable the timer  What might cause me to not see any PWM output?HAL_TIM_Base_Start(&htim8);HAL_TIM_PWM_Start(&htim8,TIM_CHANNEL_3);HAL_TIM_PWM_Start(&htim8,TIM_CHANNEL_4);