Solved

Hello,I've implemented the solution proposed in https://github.com/MaJerle/stm32-usart-uart-dma-rx-tx?tab=readme-ov-file by @Tilen MAJERLE for efficiently using the DMA in circular mode with a buffer for the UART in a STM32L4 board.I'm trying to port my driver to the M4 processor of a STM32MP157-DK2. I've successully configured the UART3 in the M4 project with DMA in normal mode and I'm receiving one byte at a time and adding them with the RxComplete callback to my buffer.However, when I changed the DMA mode to circular, my surprise was that there is no HAL_UARTEx_ReceiveToIdle_DMA function in the HAL driver and no HAL_UARTEx_RxEventCallback callback. So I can use the RxComplete and RxHalfComplete callbacks but no idle line callback, which is a big problem when using a long circular buffer size.Can anyone explain what is the problem, why there is no Idle line detection here or how can this feature be implemented for this board? Thanks in advance.

I'm using Visual Studio 2022 to develop and debug TouchGFX softwareEvery time I launch the debug the console output shows  'Application.exe' (Win32): download of 'C:\Windows\SysWOW64\windows.storage.dll' completed ... Thread 2792 exited with code 0 (0x0). ... Is there a way to print also the cout like void MainWheel::handleDragEvent(const DragEvent& evt) { std::cout << "Variation X: " << evt.getDeltaX() << ", Variation Y: " << evt.getDeltaY() << std::endl; 

I am using the STM driver to control the LIS2DH12TR accelerometer.The freeRTOS sensor task is as following (checks on return values and variables definitions are removed to simplify the code comprehension): void MEMS_task(void) { lis2dh12_self_test(&dev_ctx); result = lis2dh12_operating_mode_set(&dev_ctx, LIS2DH12_HR_12bit); result = lis2dh12_data_rate_set(&dev_ctx, LIS2DH12_ODR_100Hz); result = lis2dh12_fifo_mode_set(&dev_ctx, LIS2DH12_BYPASS_MODE); result = lis2dh12_block_data_update_set(&dev_ctx, PROPERTY_ENABLE); result = lis2dh12_temperature_meas_set(&dev_ctx, LIS2DH12_TEMP_ENABLE); for (;;) { result = lis2dh12_xl_data_ready_get(&dev_ctx, &acceleration_data_available); if (acceleration_data_available != 0) { /* Read accelerometer data */ memset(data_raw_acceleration, 0x00, sizeof(data_raw_acceleration)); lis2dh12_acceleration_raw_get(&dev_ctx, data_raw_acceleration); acceleration_mg[0] = lis2dh12_from_fs2_hr_to_mg(data_raw_

Running the code "MP13_BSP_BasicTemplates" in the DDR of the STM32MP135F-DK succeeds，But running the code "UART_Receive_Transmit_Console_A7" in the DDR of the STM32MP135F-DK fails（“USE_DDR” Macros added,Link text has been modified），Errors are as follows： 

I am wondering if VSSA voltage can be slightly lower than VSS? If so, what is the maximum allowed difference?The reason why I ask is because I would like to measure voltage slightly (0.2-0.3V) below the common ground attached to VSS. I looked in several DSxxx documents (e.g. DS13195 and DS13196) but, to my surprise, I found no info/specification. I guess, a separate VSSA pin was made available on some MCUs so the voltage could slightly differ from VSS.Could anyone advise?

I am trying to use touchfgx on stm32,but I have some problems .the background on the hmi will rotate sometimes,the background has a lot moving lines and shapes that rotate along.I know I can use texture mapper to realize it,but that need many texture mapper widgets.So I want to know if I can draw these shape and lines on a container,and then rotate the whole container. as far as I know,emwin can do this by using memdev.one more question:if I want to draw many lines and shapes on the container ,I have to declare the lines in designer? or   Can I draw lines dynamicly like emwin?

hello whats this component and datasheet link p

Hi.. It's possible to know the exact code of this component?Thank you so much

I need a MCU with a USB host controller. It seems to be hit or miss as to which STM32 chips have this feature. I've tried the product selector on both this site and Digikey, but "host" is only ever listed in the datasheet, so this has proven fruitless. This feature is key to he project I'm working on. I need to be able to connect a keyboard to the chip and be able to read the key presses. The rest of what I need is mostly IO and SPI/I2C, so I'm otherwise not to picky. Still, I'd like to avoid wading through the muck that is the ST MCU lineup, chip by chip, if at all possible.

For example here:https://community.st.com/t5/stm32-mcus-products/timer-compare-output-using-dma-stm32f3discovery/td-p/672897there are two code blocks with "View more",buttons. When "View more" on the first code block is clicked, both code blocks are expaneded. However, the "View more" at the second code block remains, and if clicked, nothing happens just that "View more" button disappears.I don't think this is the expected behaviour.JW

Hi,I am using a STM32MP151AAA3 and i need to control an RGB LED via PWM control (something like the WS2812B). I was looking into the PWM driver options for Linux side control and can't find options for PWM control for specific buffer sizes or anything like that (only for fixed PWM outputs).On the bare metal MCU's i can control this via PWM and DMA and send a specified data buffer. does anyone know if there is a similar option for a Linux controller PWM driver?The other option is to control these LED's via the secondary M4 core but I rather not if possible.Kind regards,Richard

Hey all, i believe i've found a mistake on the stspin32f0601 datasheet.  https://www.st.com/en/motor-drivers/stspin32f0601.html Page 12, RON_OD, Units are in Watts instead of Ohm, I believe this is supposed to be the value of RON_OD.   Thank you  

Hi all,According to the document, I already store my image data to SD card and I can read the image data correctly by below function: FRESULT read_bin_file(char *name, uint32_t offset, uint32_t numBytesToRead, uint8_t* dest) { fresult = f_stat (name, &fno); if (fresult != FR_OK) { SD_ERR("\"%s\" does not exists\n", name); return fresult; } fresult = f_open(&fil, name, FA_READ); if(fresult != FR_OK) { SD_ERR("opening file \"%s\" err[%d]\n", name, fresult); return fresult; } uint32_t numBytesRead = 0; f_lseek(&fil, offset); f_read(&fil, dest, numBytesToRead, &numBytesRead); if (fresult != FR_OK || numBytesRead != numBytesToRead) { memset(dest, 0, numBytesToRead); SD_ERR("read bin file \"%s\" err[%d]\n", name, fresult); f_close(&fil); return fresult; } fresult = f_close(&fil); if (fresult != FR_OK) { SD_ERR("close file[%s] err[%d]\n", name, fresult); } return fresult; }  I rewrite the TouchGFXHAL::block

안녕하세요VN750PS-E 드라이버를 통해 모터를 구동하는 회로를 작성하겠습니다.INPUT에는 5V MCU 신호가 있고 12V 전압이 VCC에 연결됩니다. OUTPUT에는 모터가 연결되어 있습니다.하지만 STATUS 핀을 처리하는 방법을 모르기 때문에 이런 글을 남깁니다.데이터 시트에 따르면 Rprot는 10k 크기의 저항으로 연결되며, 그 전에 MCU의 5V가 아닌 전원 공급 장치에서 추가 5V가 나오는데 맞습니까? 누구든지 좀 더 이해하기 쉬운 그림을 말하거나 그릴 수 있습니까? STATUS 핀을 제대로 연결할 수 없었던 현재 상황을 게시하고 있습니다.감사합니다.

I'm using CubeIDE and I want to have an output compare event on TIM1 CH1 trigger an input capture event on TIM8. It doesn’t seem like there is a way to do this with normal timer functions and CubeIDE. Is it possible if I work outside CubeIDE?As a backup, I believe I can also use a DMA transfer triggered by TIM1 CH1 output compare to save TIM8->CNT to memory. Is this a viable solution?

Hello all-Working with the SPI peripheral on the STM32F411VET6, we need to connect to a device that sadly requires the CS line to toggle with every byte sent.  Just about every example code runs along the logic of "write to the SPI data register and wait for TXE or BSY to change status".  Here's one such from hackaday dot com : In order to send bytes to a slave we thus follow this sequence after pulling the target’s SS line low: Wait for SPI_SR_TXE (status register: transmit register empty) to become true. Write data (8-16 bits) into SPI_DR. Repeat from (1) if more data has to be written. Wait for SPI_SR_TXE to become true again. Wait for SPI_SR_BSY (status register: bus busy) to become false. So the problem we're having is that after a write to the data register is done and a looping check made on either TXE or BSY, the chip select line is getting toggled before the 8th clock pulse happens (in the case of checking TXE, it toggles status on the 4th clock pulse,

Hello,I am developing a custom BLE app on a custom STM32WB55CEU6 board.I need it to periodically (every x seconds) wake up from stop2 mode, read FIFO of a sensor, process the data, go back to stop2 (CPU2 is advertising in the meantime). When a user connects via phone app, the processed data will be sent.I am not finished yet, but right now, my main() while loop looks something like this (pseudocode):while() { readSensor(); processData(); MX_APPE_Process(); } Forcing CPU1 into stop2 two the way it is implemented in the PWR_STOP2_RTC ( HAL_RTCEx_SetWakeUpTimer_IT(...) and HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI) in the main while loop) seems to break the LPM, probably bacause WPAN itself requires RTC internal wakeup.So the question is, is registering and then managing (setting,...) the readSensor() and processData() functions in the sequencer as tasks a good approach to achieve lower power (?), since the sequencer then manages the power states autonomously if the L

hi, Im using my own costum board with a STM32WBA52CG on it. When I'm nog using the RF my code is working perfectly. When I activate the RF in the STM32CubeIDE, my code is stuck in  PeriphCommonClock_Config();More specifically in the following code: I already checked my HSE crystal and I'm getting 32 MHz out. So what could be wrong? because without the RF I'm not able to use BLE..  Thanks in advance! Kind regards, Mats 

Please advise on Application Notes, Training, examples on Evaluation board, etc. on designing lowest power system using STM32WLE5JC.  Cell life for weeks or months.  I intend to use STOP2 with RTC and normal-run modes.I found App Note 5568 and 4879.Many thanks

Hi!! I have STM31mp157C and I want to use the ADC. I am exploring the available GPIOs and have observed that some are present in both ADC1 and ADC2.For example, according to the datasheet, PA4 can be used with ADC1/ADC2.Is there any difference between measuring from ADC1 or ADC2?Is there any use for a GPIO to be in both ADC1 and ADC2 (such as performance improvement, special modes of operation or similar)? Thanks!A.

Hello,I need to drive some power mosfets (STP55NF06) from open drain outputs.The gate and mcu output will be connected to a pull up resistor to 12VAre the TT and FT pin voltage limits applicable when used in open drain mode?If yes, I will amplify the 3V of a push pull output.Else, it will reduce the design size. Thanks for your reply 

So i have a LSM6DSOX and connected to its sensor hub LIS3MDL. Currently I'm trying to log data to feed into the NanoEdge studio.  So i need to grab data from the actual LIS3MDL. On the sensor hub you can read and write registers through the sensor hub correct?

‎Hello everyone, I need some help with identifying a component BBG(attached pic).

not any data available in Google pls identify the components.

Hello,I have started to use stm32wl55 nucleo.I try to debug a basic application.I start by debugging CPU1 (CM4) than after booting CPU2 (CM0+) i run the debug for the second CPU.But ST-LINK: Could not verify ST device!error details :Error in final launch sequence:Failed to start GDB serverFailed to start GDB serverError in initializing ST-LINK device.Reason: (18) Could not verify ST device! Abort connection.Any suggestion ?Thank's.