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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.

Hello there.I'm a beginner with MCU programming and hardware, in order to get into the field I purchased a board suggested by someone in another forum, then realizing that the debugger is another hardware unit I purchased it aswell.I managed to connect the flat cables found in the STLink box to the STLink and the STLink to the PC via USB however I can't find any pins to connect the STLink to the MCU.I would like to know if I missed something or wasted some money in purchasing incompatible components.Thank you.I will have pictures attached 

Hello. I have few questions on UART half-duplex single-wire peripheral. I'm using stm32f303k8.In RM it states that TX and RX are internaly connected and TX is low (or whatever "released" can mean) when it's not transmitting. This means that when no transmission occurs, since TX is in output mode, either open drain or push-pull, it should short the line to ground through the internall connection and "released" NMOS transistor. Is that true?I'd like to know more on what HAL_HalfDuplex_EnableTransmitter() and HAL_HalfDuplex_EnableReceiver() do, as it's hard to get under the hood on just the HAL user manual and the code. Do they somehow protect the transmitter by disabling it such that the series resistor (like this person says) is unnecessary? Normal mode change of a GPIO protects its output driver when it is an input, so it is possible.Wouldn't it be better if I just changed the modes on the fly from input to output somehow if the series resistor is indeed necessary? For ex. making it a

Guys, I ran into a strange problem while debugging LIS2DH12, someone help me. I configured the high-precision mode, using 12 bits, with a range of +-4g, that is, when I placed the table (the chip with the sign facing up, the positive direction described in the instructions) it should have been subject to neutral acceleration and the converted value should have been -1g, but the result I got was +1g, I verified the other two axes, The resulting acceleration value is the opposite of the direction indicated in the manual, that is, when I always accelerate in the opposite direction of each axis, the resulting conversion value is indeed positive   Moreover, I read out the register value directly using lis2dh12_from_fs4_hr_to_mg function for conversion, and the size is close to 1g, but its direction is reverse, at this time I am the chip marked up, the acceleration value should be gravity acceleration downward is negative, it is positive.

Hi,I'm using Custom HID class for sending MIDI messages by editing the descriptors. I am using sendReport function for sending MIDI messages, I want to receive MIDI messages as well. I was wondering whether there is any function to receive messages in custom HID files. I'm using STMH755ZI. Thanks,Kiran

Hello,I am hoping i can be pointed in the right direction.I would like to create, using an STM32H7, a device that has an ethernet port. The idea is simply to go to various sites and scrape info for processing later on. I guess this will require TCP/IP.So i have found some examples online of this to help me and get started. However they seem to make little sense to me since i dont use and refuse to use CubeMX. I would rather understand what i am writing rather than have so much abstraction it takes forever to understand the code.Ideally not having to use RTOS would be good, mostly because i dont understand them yet and i feel it just adds more complexity to what i am doing.Ideally i would have liked to use the H7 internal MAC and an external PHY. Then i can attempt to code in the stack, which i know would be quite difficult and time consuming. But it does allow me to do software update fixes.This would be preferred over using say a WIZ5500, although i do understand the benefits of

Hello everyone,I have a question about the STM32H5 modules. I can't find the integrated FATFS in the list of middleware provided by ST. Is it complicated to integrate FATFS by myself, or should I use the middleware provided by ST?I am using STM32CubeMX for my project, and I've noticed that the FATFS middleware option is available for other STM32 families but not for the STM32H5. If I need to integrate FATFS manually, what steps should I follow? Are there any specific configurations or additional libraries required to ensure compatibility with the STM32H5?Additionally, any advice on best practices for setting up the file system, optimizing performance, or troubleshooting common issues would be greatly appreciated.

Hi all,I need to perform a modular update in my f446 board for my project.The board is running a FreeRTOS, and the idea is to only modify the content of one task without affecting the content of other tasks. For doing this, every task calls its function, and these functions are defined in specific areas of memory defined in the linker file.Here is an example of a function:void __attribute__((section(".custom_section1"))) application1 (void){printf("in app 1 \r\n");} Here is a part of the linker file:...APPLICATION_1 (rx) : ORIGIN = 0x8010000, LENGTH = 64K /* Sector 3 */....custom_section1 :{*(.custom_section1)} > APPLICATION_1  And here is the task calling the application:void StartApp1(void *argument){for(;;){ application1();osDelay(1000); }/* USER CODE END StartApp1 */}   Before performing the update everything works perfectly, the tasks call the functions and with CubeProgrammer I check that they are stored where we want them to be. &n

Hello everyone,I'm working on a STM32U585 application which works on STOP3 mode and on a customized electric circuit. One of the wake up sources is the ST25's GPO which should generate a pulse when a message is sent via FTM when mailbox is enabled. In fact, GPO is configured to generate a pulse on GPO/RF_PUT_MSG event (mailbox is enabled on DYN Reg).When the microcontroller enters in STOP3 mode, I hold ST25's VCC high so that the tag is not powered (the global current absorption is around 12 microampere). The St25 is powered only when a RF source comes near at it (smartphone, ST25 discovery kit such as ST253911B-DISCO...) and using FTM writes something on mailbox, thus generating a pulse on the GPO and finally waking up the microcontroller. Unfortunately, that is not working. I made sure the coupling between RF source and tag was fine, but no pulse is seen on GPO.If ST25's VCC is held low, the global current absorption goes around 150 microampere and the pulse is generated on

EDIT* for those seeking a solution, JW in the replies below pointed out that the DIER register for TIM1 never enabled the interrupt bit for the commutation event and the mistake was that I used HAL_TIMEx_ConfigCommutEvent(&htim1, TIM_TS_NONE, TIM_COMMUTATION_SOFTWARE);Instead of HAL_TIMEx_ConfigCommutEvent_IT(&htim1, TIM_TS_NONE, TIM_COMMUTATION_SOFTWARE);---------------------------------------------------------------------------------------------------------------------------------------------------------Dear whomever may read this,I've been working with PWM on TIM1 with the NUCLEO-F429ZI, I have three channels and their complementary channels active. This is an iterative test project, where I am bring function to life one step at a time. The following is the configuration for TIM1 (Note channel 2, 2N and 3, 3N have the same configuration as 1 and 1N).TIM1 Channel ModesTIM1 ParametersAfter being happy with the PWM timer, I enabled the commutation interruptTIM1 I

Hey, just wondering if you could help with the following? We are using a package called I-CUBE-USBD-Composite for combining two USB classes. We use CDC class for serial communication and HID class for MIDI. We change the descriptor for custom HID class to MIDI descriptor to get our device to be detected as MIDI device. When i use mouse HID and CDC, i am able to get it working. But the problem with mouse HID is it doesn't allow MIDI receive. But when i use custom HID both CDC and MIDI is not working. The device is not getting detected as any device.Any ideas or resources would be a big help. Thanks, 

Hi There,While reading the data from I2C, I see that the master is missing to send NACK.Some fixed was done in https://github.com/STMicroelectronics/STM32CubeF4/issues/139 but those fixes are there in the code. But still sometime i see that NACK not being send out and slave pull the SDA line to low.  Is there any fix on this one?

Hi All, I have a STM32 Nucleo H723ZG development board and running CMSIS RTOS v2 and HTTP server with netconn  on it. The project is an example provided by the ST and it is available in STCubeMX. everything works fine until I disconnect the Ethernet cable from the board. As soon ans the cable is unplugged the code jumps into the hard fault exception. I wonder if anyone else has seen this issue with this example and has a solution for it. many thanks for any help,