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Dear,Setup:We using a STM32H7B0 100pins.We use 1 ADC input at 1M samplesConfigured as 16bit, differential input, with an offset of 32768.We use a Vref of 2.5V.The other side of the differential input is 1/2 of Vref (buffered with a opamp)To sample the data of the ADC we use a DMA circulaire mode to internal memory.When we measure our signal we seen many spikes on the samples.With the scope is the input signal very clean.Also we use a opamp to buffering the analog signal before it get tot the ADC input.The opamps we used are LTC6256We cannot understand why we seen all these spikes.What are we doing wrong here or is there an explanation for this phenomenon? Thereby when we changes our sample rate to 100Ksps it has the same effect.Also when we change the ADC input from differential to single ended. regards  

I can't find the reference of the diode on the photo. 

Hello everyone, I encountered a problem with overwriting OTP memory both from a user application and from the stm32 programmer.I write data to the OTP cell, close the memory using standard hal functions, turn off the power of the debug board, turn on the power, go to the stm programmer and see correctly written data.After that, I try to change one of the memory cells and the cube programmer gives me an error (which is correct, since this memory cell has already been written once). I close the error windows and read the memory, after that I see that the memory is CHANGED, but to a random number. This is repeated only once, that is, the cell can be written twice both from the PROGRAMMER and from the application.I tried to write the same data but to the addresses 0x08FF F000, 0x08FF F040, 0x08FF F080, and all the time the secondary cell write was triggered (the bottom picture).I also encountered a problem with calling NMI_Handler and HardFault_Handler when trying to read memory from the a

[VERSION]: MCWB v6.3.2[TOOL]: STM32CubeMX v6.13.0, STM32CubeIDE v1.11.5[BOARD]: STEVAL-PTOOL1V1[PROJECT]: STEVAL-PTOOL1V1_6S_SLI have the code generated by MotorControl Workbench compiling in STM32CubeIDE and it programs and runs the motor.  I managed to get the motor running at the speed I want, but I've been having a hard time making some adjustments to the parameters which are distributed through various folders and files.  In particular, I want to change the initial acceleration rate after boot up.  How/where is this controlled?Thanks

Need some clarification on implementing the DFU functionality on STM32L412KBU3.According to the note in AN2606 (page 350), it states: "VDDUSB IO must be connected to 3.3 V" however, on the STM32L412KBU3 (UFQFPN32) the VDDUSB pin does not exist.Currently, VDD is powered by +1V8 on my application of the STM32L412KBU3.Will I have any issues with DFU moving forward?

Hi all,Coming from Nordic nRF52840, I have a project that uses a Joystick.I bought two Nucleo boards, the P-NUCLEO-WB55 and the NUCLEO-WL55JC1 to test Radio communications.My Joystick of course uses 2 channels (X and Y), uses 2 GND pins, but also uses 2 pins for 3.3V (VDD). Now after checking the official Nucleo manuals, I can find only one 3.3V  VDD pin.Is that right? Those development boards offer only one 3.3V pin?If yes, what are my options?Power the joystick with that unique 3.3V VDD pin? Just like it's done on most small boards (like the blue pin)?Thanks for any light and help you can provide.Steve Jordi

Hi, I have problem with my SPI peripheral. For generate inicial code I used STM32 Cube IDE Version 6.14.1, and programming IDE STM32 Cube IDE Version 1.18.1.Description of problem:1.I want simple to check loop with transmit and receive data, but when I do that I always have 0 or 255 in receive register. I tried the same thing with UART, and it works.2.On SCK I don't have clock, I try with oscilloscope to see but nothing. In attachment I leave full project and video, please can someone check and say me some advice.  

Hi, with STM32F030C8T6, I am implemeting MODBUS protocol in RTU (Slave) with UART as physicsl layer. I use QModMaster (A master simulation software run in PC). I use oscilloscope to probe the actual information through the RS485.Recently I inplemented different baudrate and parity settings. While testing, I observed that data sent from master (QModMaster software running in PC) is correctly intrepreted by STM32 even when paity is flipped.For example, if master sends a data with Even parity, STM32 undertsand the data for both EVen paity as well as Odd paity. Buut when no paity is set in STM32, data is not understood by it. Similarly, if I set Odd paity in master, even then data is unserstood by STM32 is correct with Even paity and Odd paity.I am not so happy since this works in this way.For your info I have pasted by UART init code below:void USART1_Init(void){// Enable GPIOB and USART1 clocksRCC->AHBENR |= RCC_AHBENR_GPIOBEN;RCC->APB2ENR |= RCC_APB2ENR_USART1EN;// --- PB5 as

I have a new STM32MP157D-DK1.  I have booted the board using the enclosed SD card and all appears to be working.  The green LED next to CN6 is on, blue LED8 starts flashing a few seconds after power on.  One of the block of 4 red LEDs next to the ST-LINK connector is flashing.  I have connected the ST-LINK CN11 to a USB port on my Windows 11 laptop.  I was assuming that the ST-LINK would be detected by Windows and would appear in the list of devices.  However, I see nothing at all.  No ST-LINK, no virtual COM ports.  I have tried different power supplies for the board, different USB cables for the ST-LINK and different USB ports on the laptop.Is there something else I need to do to see the ST-LINK or does this indicate the board might have a fault?My aim was to run a very simple program on the CM4 processor using Cube IDE but so far all it says is No ST-LINK detected.  I have various other STM32 dev boards and the ST-LINK and COM ports

I have a Nucleo WB55RG board with in built ST-Link.I programmed it with a blinky LED & a UART message "Hi there!\n" via the CubeIDE on a different PC & it all works fine. TeraTerm has no problem selecting the ST-Link device connected to the PCNow running it on a new PC I keep getting "No ST-Link Detected" when trying to download from CubeTeraTerm cant find any COM ports when the board is plugged in but can find Arduino devices communicating via serial with no problem when they are plugged in.The device doesn't even show up in the Device Manager.I have installed ST-Link drivers & have successfully programmed other Nucleo boards with this PC in the past.When the board is plugged in  the com LED next to the ST USB flashes red & LED5 is on-redI have uninstalled & reinstalled the latest ST-Link version but nothing.I'm on USB cable number 3 so I doubt that a ddgy cable is th eissue unless I'm unlucky enough to have 3 failed cables.  

Hello,I am trying to implment MODBUS Slave RTU with STM32F030C8T6. I havce used RS485 for physical layer for communication.As per MODBUS protocol, a stream of 8 bit data will be sent from Master.  As a first step slave must capture all the data in an array, then process the data, do the required action and send back data.In MODBUS if there is silence of more than 3.65 milli seconds (for Baudrate of 9600) slave can decice that Masfet has finished the data transfer.I have used UART1 in Interrupt mode (RXNE) to receive the UART data and fill it in the array. Whenever a character is recived by UART, I reset the timer 3 to restart the timing of 3.65mS. If no data comes from UART for more than 3.65ms, slave will decide as teh frame is completed and start next actions.As of now, to analyze the received data, I used conditional statements and digital outputs inside while loop. I have oscilloscope too. Now the issue is. When ever board is restarted and, first frame is sent, timer

Is the 'stm32-external-loader' repository still maintained?The stm32-external-loader contrib branch has not been updated in over 5 years.  There are currently 7 open pull requests with updates to support new flash ICs.  Some of these PR are 4 or 5 years old.The ST MOOC external loader course encouraged developers to add their drivers and many have.  Does anyone from ST know why these updates were never considered for the contrib branch?

Hi, I wanted to know if it is possible and how to approach reserving/allocating a section of internal flash (The Resource section) for a FatFs file?

Hi, I'm just struggling with the same problem. I use SPI with DMA non-circular mode and want a callback for receive complete. I can set the callback function with HAL_DMA_RegisterCallback but in HAL_SPI_TransmitReceive_DMA it will be overwritten: /* Set the SPI Tx/Rx DMA Half transfer complete callback */ hspi->hdmarx->XferHalfCpltCallback = SPI_DMAHalfTransmitReceiveCplt; hspi->hdmarx->XferCpltCallback = SPI_DMATransmitReceiveCplt; Edit: Post moved from original thread How to know the when the DMA transfer done?, to give a chance to be answered. Please precise if you are using U5 as original one.

HI，  I am developing ble audio application with the STM32WBA55G-DK1 board, i refered the BLE_Audio_TMAP_Peripheral project. Now my phone can paired with the board and when i play the music, the ble audio stream can setup successfully. But then the application enter WWDG_IRQHandler, i debug the applicaiton and analyzed the WWDG register, the register of WWDG_CR was 0x7F, WWDG was not actived, so i think it was very strange, then i  wrote WWDG_IRQHandler function myself to replace the original definition.void WWDG_IRQHandler(void){while(1);}But when i test again, a new abornal interrupt WKUP_IRQHandler was trigged. Then i wrote WKUP_IRQHandle fuction myself, and tested again.Another abormal interface WKUP_S_IRQHandler was triggerd.So it is very strange, these abnormal interrupt were disabled, but why these abornal interrupts can be triggered?The final log output is as follows.55.83 CAP Event: 0x3655.84 Media Player Instance with CCID 2 is active to

Hi I just wanted to ask which of the two processors is actually more powerful. The H733 seems faster, but according to Google AI, the H753 offers better performance :). What’s your take on it? Thank youBR 

Hi,I am currently working with the STM32C091CBT6 microcontroller and am looking for suitable development hardware.My primary questions are:Is there an official STM32 Discovery kit or Nucleo board specifically designed for the STM32C091CBT6 microcontroller? If so, could you please provide the part number or a link to its product page?If a dedicated development board for the STM32C091CBT6 is not available, what is the recommended approach for using the NUCLEO-C092RC board with the STM32C091CBT6 microcontroller? Specifically, I am interested in understanding: * Are the pinouts compatible enough for direct connection or would an adapter be necessary? Thank you for your time and assistance with this matter. I look forward to your guidance.BR, 

when i click the ffmpeg.exe with my computer win10 system, it can't run and flick to cancel , how to solve this issue ？    

Hi,I want to generate a timeslot control signal consisting of one 10-microsecond pulse followed by fifteen 2-microsecond pulses.I want the period to remain constant, aligned on the falling edge.My problem is that before and after the long pulse, the period changes, and I don’t know how to fix it.I have:instead of: I use two methods and i am not able to make both of them work.Here is my code:Method 1 : Timer1 16 in PWM mode void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) { if( htim->Instance == TIM16) { HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_SET); else { if(htim->Instance->RCR>0) { htim->Instance->RCR=0; htim->Instance->CCR1=g_TSC_Long_Low_Pulse_Duration-1; } else { htim->Instance->RCR=(g_TSC_Max_TimeSlotsToRun-1)-1; htim->Instance->CCR1=g_TSC_Short_Low_Pulse_Duration-1; } } } } Method 2: time base (Tim 6)typedef enum { PULSE_LOW, PULSE_HIGH } PulseState;

Hi,We are using the OTA BLE example as the base for our bootloader on a STM32WB55.I'm reading through AN5247, and it describes the advertising message as follows:But the advertising message that I get has all its Feature Group B bits set to 0. I tracked the a_ManufData across the project's code and after initialisation, it's only changed to add the BLE address, and the value of 0x20 mentioned in the AN5247 is never set anywhere.Also, the first row in table 4 above lists length as 8, I think it should be set to 13 (12 for the data + 1 for the AD type).Is that an error on the bootloader project or the application note? Am I missing something?Thanks!

Hi Im a bit new. I'm following a tutorial and i cant find the SPI_ICS like the guy on the video on the picture did.Its a STM32L432KBUTutorial pic: My STM32: 

Hi,I'm confused about the maximum data transfer of the STM32H723ZG. The overview says:2×16-bit ADC, up to 3.6 MSPS in 16-bit: up to 18 channels and 7.2 MSPS in double-interleaved modeThen the 'AN5354 -  Getting started with the STM32H7 Series MCU 16-bit ADC' also mentions these data rates for the H7 series but not specifically the STM32H723ZG. This application note also specifies a huge discrepancy between different packages and rates:Then, assuming these numbers correspond to the direct channels, what are the data rates for the fast or even slow channels?  Also, CubeMX doesn't clearly indicate which ADC channels are direct, fast or slow, maybe this is a functionality that could be added?

If I select STM32CubeIDE as the toolchain, I encounter the following error during compilation. However, if I switch the toolchain to EWARM, the project compiles without any errors.I’ve attached the .ioc file and build log for reference. Could you please help analyze what might be causing the issue?Thank you in advance for your assistance! 

Hi Guys,I am planning to start a project where I require BLE and Zigbee dynamic concurrency. After going through the datasheet OF STM32WB55, under dynamic application section, I could see that the mcu acts as either BLE Peripheral/ Zigbee Router.(Also I'm attaching an image of this)Is this dynamic concurrency possible for BLE Central/Zigbee Coordinator, as in my project, my device should control both BLE and Zigbee devices.Thank You

When generating code with CubeMx version 6.14.1 there is a new bug (compared to version 6.13.0 where it worked fine).MCU: STM32U5A5QJIxQPeripherals: ADC1/2 and/or ADC4RCC Clocksource: SYSCLKWhen you change parameter setting in ADC_Settings "Clock Prescaler" it has no effect on generated code. There should be following code (was generated like this in version 6.13.0):LL_ADC_CommonInitTypeDef ADC_CommonInitStruct = {0}; ... ADC_CommonInitStruct.CommonClock = LL_ADC_CLOCK_ASYNC_DIV4; LL_ADC_CommonInit(__LL_ADC_COMMON_INSTANCE(ADC1), &ADC_CommonInitStruct);The ADC clock prescaler setting is common for all ADCs and DAC, but in version 6.14.1 there is no code generated which sets the prescaler anywhere!