Solved

hi, im working on ADC, but ADC is not working, it is getting into infinite loop in this stage  while ((hadc->Instance->ISR & tmp_flag_end) == 0UL)and my code follows like this HAL_GPIO_WritePin(GPIOH, GPIO_PIN_7, GPIO_PIN_SET);    // get ADC value    HAL_ADC_Start(&hadc1);    HAL_ADC_PollForConversion(&hadc1, HAL_MAX_DELAY);    raw = HAL_ADC_GetValue(&hadc1);    HAL_ADC_Stop(&hadc1);    HAL_GPIO_WritePin(GPIOH, GPIO_PIN_7, GPIO_PIN_RESET);    HAL_Delay(1000);   data= (float)(5*raw/4095);   uint8_t length= sprintf(msg, "%.3lf\r\n\0", data);   HAL_UART_Transmit(&huart1, msg, length, 100);it is getting stuck in ADC poll for conversion. UART is working perfectly fine. changed the frequency, checked by changing with channels and different ADC bits. and no option for changing to synchronous, its working on async.

Good afternoon everyone....I am trying to learn more about the stm32 and am using a nucleo L476 and an oscilloscope. In particular I want to understand more about the output compares of the timers. I have read many an app-note , user guide and data sheet regarding these and am now at the stage of testing stuff out.....I am running into complete confusion with respect to this...I have a 26MHz clock with a prescaler of 26 -1 (should be a 1MHz Cnt clock). I have the ARR register loaded with 100 - 1 (should create an UIF event every 100us). I am using CubeMX to set this up. There are a few questions: I had to code the macro (see below) bcz CubeMx doesn't seem to check the UIE bit when setting up as compare output.....Can anyone comment as to why?__HAL_TIM_ENABLE_IT(&htim3, TIM_IT_UPDATE);The following below is my ISR.....My attempt was to have UIF interrupt me every 10khz (see above comment on this), turn the output on and arm the CCR with counter + 10. My thought was that after this e

Hi, I solve a problem with reading more parameters from the inclinometer Murata SCL3300. The communication works without errors, the init state is OK and when I read more parameters, I get the wrong results. For SPI communication I use HAL_SPI_TransmitReceive(&hspi2, tx_data, rx_data, 1, 100); I attached my code. Does anyone have the same problem?

Hi,I have M24LR16E-R product. I am reading UID and I see the IC ref product version 4Ch I was reading the IC ref value as 4Eh in the old versions I have. Looking at the ST documentation, I noticed that the value should be 4Eh. So is there any difference between eeproms with different 4Ch and 4Eh IC ref product numbers, and if so what is it?

Hello friends!I have been messing around with the onboard opamp and here is the problem. When I configure it as the follower, things are okay, but as soon as I configure it as an AMP with PGA on and set any gain, I see quite dramatic DC shift on the output. I have the positive input connected to a voltage divider (no any signal), that gives 1.6v bias. Yet, when the gain is 2, the output shows about 2.3V. Gain >2 already results in saturation. The inverted input isn't externally connectedDoesn't anyone know, what the problem might be?

May you people suggest some open source project based on STM32? may main goals are to contribute and learn.

Development Board: Nucleo-L476RG.IDE version: STM Cube IDE 1.11.0I have implemented this "Configuring the IWDG when the window option is disabled When the window option it is not used, the IWDG can be configured as follows: 1. Enable the IWDG by writing 0x0000 CCCC in the IWDG key register (IWDG_KR). 2. Enable register access by writing 0x0000 5555 in the IWDG key register (IWDG_KR). 3. Write the prescaler by programming the IWDG prescaler register (IWDG_PR) from 0 to 7. 4. Write the IWDG reload register (IWDG_RLR). 5. Wait for the registers to be updated (IWDG_SR = 0x0000 0000). 6. Refresh the counter value with IWDG_RLR (IWDG_KR = 0x0000 AAAA)." I'm not sure as to how I can validate that my processor is resetting.Any suggestions would be appreciated.Thanks

Dear Sir or Madam, could you please inform us about lifecycle of diode LDP01-47AY, D2PAK? Is this diode still in serial production?Thank you for your answer, Tomaz.

Hello!I am working on a project of sound source localization and want to lit an individual ws2812 Led in the direction of the sound source.I came across an expansion software package x-cube-memsmic1 which uses Acoustic SL library to estimate the angle of the sound source and send the angle along with some other things to PC via USB. The description says that the audio_application.c and usbd_audio_if.c contains some functions to get the angle from the source and send it.Now I don't know which function does this and how?/** ****************************************************************************** * @file audio_application.c * @author SRA * @version v1.3.0 * @date 17-Sep-2021 * @brief Source localization example. ****************************************************************************** * @attention * * Copyright (c) 2022 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory

Hello!I am working on a project I have 4 mems microphones and I want to get an angle from these 4 microphones, I have 12 neopixel Leds which lit up according to the voice direction on the 4 microphones. I have the Stm32cubeide project for it, but I don't how can get the angle with it.Here is the Code and I will also attach the files...Please guide me!/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * Copyright (c) 2022 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** */ /* USER CODE END Header */ /* I

Can you explain why there are Near Field Communication antennas on both sides of this device? I'm designing Circuit for M24LR04E-R6MNT/2 I would like to follow the circuit diagram of X-NUCLEO-NFC02A1. But there are both side antennas. It would be very helpful if you could explain why they are available on both sides. It is very helpful if you can send me the both top and bottom assembly views of that.(optional)

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Hello guys,This is a silly question, but still cannot get it right.I want to read different values coming from sensors connected to different ports.I know using 16 available channels for external input is very intuitive when all the inputs come from pins in the same port. But lets say I have inputs and GPIOA, pin1 and GPIOC pin1, and etc... How to set them in a multiple channel configuration? How to select the right channel for every input? It's a bit confusing for me

What is the best way to create 480 1us pulses (to clock an A/D) every x seconds?Can this be done with one timer?

I have a custom board with a STM32MP157AAB3 and I am trying to boot it with the SD card.   I have tested the SD card on a STM32MP157C-DK2 and it boots to Linux fine. When I probe the SD card lines, I can see the clock is toggling for a long time and the CMD pins is also toggling however nothing happens on the D0 pin, it is held high (3V3)

A very weird problem here... But Cube-skeptics won't be surprised for sure.I have a custom board with STM32H753.Devices in use are several UARTs, FMC, ethernet, I2C, few timers. FreeRTOS with LwIP. In main(), just before osKernelStart() I try to read from USART6 in interrupt mode, using HAL_UART_Receive_IT.But the USART6 interrupt never occurs and HAL_UART_Receive_IT does not receive a single byte.USART6 is configured in normal async mode, no flow control.Blocking HAL_UART_Receive() works nicely, so the UART itself is enabled and configured.The interrupt is enabled in Cube-generated code:  HAL_NVIC_SetPriority(USART6_IRQn, 6, 0); // tried also priority 0  HAL_NVIC_EnableIRQ(USART6_IRQn);When HAL_UART_Receive_IT timeouts, the USART RXNE interrupt in ISR is pending,but the NVIC bit in IABR (IABR[2] bit 7) is clear!Then I commented out MX_LWIP_Init call and the USART6 interrupt works as it should.Why the ethernet & LwIP initialization blocks USART6 interrupt?I need

I developed some libs to control a custom LCD.At the beginning the workspace only had one project, 01_main, and files related to my lcd and driver were located there, later I started another project 02_rtos, so I copied LCD files into new project.I need to create more projects, libs could be modified from any project, so I create the lib folder, it has the only version of my files, I created this folder with "Link to alternate location"Everything is working but, My questions:Is this approach ok? or Is should do something else, please note a want to keep workspace on GitHub, this modify in some way the folder organization approach? 

To be honest the difference is 0x7F03 for the ReadParam() and 0xFF03 for the GetStatus()The documentation L6474Data Sheet (DoclD022529 Rev 4) says Bits 13, 14, and 15 should be 1 all the time. In one case Bit 15 is always 0 and the other case Bit 15 is always 1 In case you think I am doing something wrong:The CS being high is 920 ns or more. It must be > 800 nsAnd the SCK is 4 MHz and has to be less than 5 MHz.

A very simple example of this is Register 0x16 Which is STEP_MODE register. It says Bits 3 and 7 are always 1. I write 0xCC to the 8 bit-register. When I read it, it reads as 0x4CWrite Param is just the ADDRESS sent. Read Param bit 5 is set to 1. So 0x16 becomes 0x36 to read register 0x16. To make sure it is not my software, (I am using HAL) I have the logic analyzer output attached.  The SCK frequency is 4.1 MHz, it must be less than 5.0 MHzThe shortest CS high is 915 ns, it must be greater than 800 ns. So, I do not believe it is timing related. What am I missing?

Hello Everyone!I am working on a project with 4 mems microphone and I want to get the estimated angle (sound source localization) using Acoustic SL library, but I don't know how to get it?I have Nucleo-F401RE board and I want to locate sound source with 4 mems microphones, please guide me.I have the library and the code but don't know how to use it. I am new to STM32 and mems technology.Why is no one answering me?I have changed the code, it's an acoustic_sl.h file. Just tell me how can I use it to calculate the angle?/** ****************************************************************************** * @file acoustic_sl.h * @author SRA * @brief This file contains Acoustic Sound Source Localization library definitions. ****************************************************************************** * @attention * * Copyright (c) 2022 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file in * the root directory of this soft

Hello!I want to interface 4 PDM microphones with STM32F401RE's SPIs in stereo config(like in the pic above), I have a problem of how to get its data using pdm to pcm library. As the data will be alligned in this form(M1bit1, M2bit1, M1bit2, M2bit2..........M1bitn, M2bitn).Can someone give me a piece of code or some kind of explanation on how to get the data?

Setup in use:P-NUCLEO-STM32WB development board.X-NUCLEO-NFC04A1 expansion board with software pack ( NFC 4.2.05) Added : DMA support for I2C , .ioc cubeMX image attached.The issue is that I cannot read the ST25DV ID via I2C DMA read. I simply do not get an answer. While the I2C blocking read works fine.Simple test code I made: // main.c   MX_NFC_Init();   /* USER CODE BEGIN 2 */ uint8_t pData = 0u;   // WORKS! if ( HAL_OK != HAL_I2C_Mem_Read(&hi2c1, 0x00AE, 0x0017, 0x0002, &pData, 0x0001, 0x1000) ) { __NOP(); assert_param(false); return 0u; } pData = 0u; // DOES NOT WORK. if ( HAL_OK != HAL_I2C_Mem_Read_DMA(&hi2c1, 0x00AE, 0x0017, 0x0002, &pData, 0x0001) ) { assert_param(false); return 0u; } //STUCK HERE! while(!pData) { }   /* USER CODE END 2 */   /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { /* USER CODE END WHILE */   MX_NFC_Process(); /* USER CODE BEGIN 3 */ } /* USER CODE END 3

I want to load a bootloader and then the firmware to my board via ST Link in one pass in an automatic mode.

In the datasheet of the STM32WB5MMG Module is writtenThe module antenna must be installed to meet the RF exposure compliance separation distance of “20 cm�? and any additional testing and authorization processes as required.in the sections FCC and ISED certification.In the application we are pursuing, the module is to be located on a custom pcb, which - surrounded by a plastic housing - is to be worn directly on the skin, like a wearable.This means that the minimum distance of 20cm to the body is not maintained.This raises the following questions:1. Is a new RF certification necessary to confirm compliance with the RF radiation exposure requirements directly on the skin?2. Why is the 20cm distance not mentioned in the CE certification section?2.1 Is the distance to the body irrelevant for the validity of the CE certification (EU)?And one additional question, in case someone knows:How much does certification by a testing laboratory (CE, FCC, ISED, ...) cost (approx.)?Thank you very much

So, we are using ADCs on the STM32h743XIH6 rev V to read DC and low-frequency signals. We noticed we have half the ADC channels working correctly and half not working correctly. Those working correctly are:ADC3P1 PC3_CADC2P1 PA1_CADC3P0 PC2_CADC3P2 PF9ADC2P4 PC4ADC2P0 PA0_Cand those not working areADC1P12 PC2ADC2P5 PB1ADC2P10 PC0ADC1P2 PF11ADC1P3 PA6ADC3P3 PF7ADC3P4 PF5Note that we switched the signals from ADC1 to ADC2 on the signals not working and still would not read correct values. We are reading varying signals (even with dc signal in) with usually a low value around 0x9ff or 0x9df (on 16 bits reading). Good signals keep working when changing ADC too. The pins are working both in GPIO output and input correclty so we do not think it is a solder issue. We also probed the signal right by the processor and it stays clean.Any idea what the problem could be? We ran out of ideas.