STM32 MCUs Embedded software

I wonder if someone can provide me with an example how to use the watchdog in a STM32F767.I have tried the following code but it don't get a reset!static WWDG_HandleTypeDef hwwdg;static bool wwdg_inited = false;static void EnableWDG (void){ if ( ! wwdg_inited ) {  hwwdg.Instance = WWDG;  hwwdg.Init.Prescaler = WWDG_PRESCALER_8;  hwwdg.Init.Window = 64;  hwwdg.Init.Counter = 100;  hwwdg.Init.EWIMode = WWDG_EWI_DISABLE;  if (HAL_WWDG_Init(&hwwdg) == HAL_OK)  {    if (HAL_WWDG_Refresh(&hwwdg) == HAL_OK)      wwdg_inited = true;  } }}It seems that the the API has been changed. The HAL_WWDG_Start() no longer exists...

..

Hello everyone!I am struggling with playback via I2S to external DAC on STM32L051/53. Audio:file in external SPI flash,WAV format16KHz sampling rate16bit depthI run the core on internal oscillator. My 'real' I2S clock (WS frequency) is 15,957kHz, which is -0.26% off the target sampling frequency.This is pretty accurate with my read from oscilloscope.I send 16 bits of data on 16-bit frame.External DAC:UDA1334min. 16KHz sampling rate16bit I2S Phillips compatibleI cannot fit even 1s audio to MCUs memory, so I am reading from external flash using DMA.My algorithm:2x 512byte uint8_t array (let's say bufferA and bufferB)2x 256 byte uint16_t array (let's say bufferC and bufferD)read 512byte chunk of audio to bufferAread 512 byte chunk of audio to bufferBconvert bufferA to bufferCtransmit bufferC to I2Son i2sHalfCpltCallback update bufferA or bufferBon spiRxTxCpltCallback convert bufferA to bufferC or bufferB to bufferDwhile (!endOfFile) i2sTransmit (bufferC or bufferD)The actual questions:Ca

Hello everybody,I am currently trying to implement a RTL2832 on STM32, the initialisation process works just fine (USBH_CtlReq). But during the USBH_RTLSDR_Process, my program first uses a USBH_BulkReceiveData and loops on USBH_LL_GetURBState. the states i am getting are :DEBUG : RTLSDR Init CompleteDEBUG : Error, usbh IDLE ... {0}DEBUG : Error, usbh not ready ... {1}DEBUG : Xfer error {2}DEBUG : Error, usbh IDLE ... {3}DEBUG : Error, usbh IDLE ... {4}DEBUG : Xfer error {5}DEBUG : Error, usbh IDLE ... {6}DEBUG : Error, usbh IDLE ... {7}DEBUG : Xfer error {8}DEBUG : Error, usbh IDLE ... {9}DEBUG : Error, usbh IDLE ... {10}DEBUG : Xfer error {11}DEBUG : Error, usbh IDLE ... {12}DEBUG : Xfer error {13}DEBUG : Error, usbh IDLE ... {14}DEBUG : Error, usbh IDLE ... {15}DEBUG : Xfer error {16}Here is the RTLSDR process code, it uses a FSM :static USBH_StatusTypeDef USBH_RTLSDR_Process (USBH_HandleTypeDef *phost) { USBH_StatusTypeDef rStatus = USBH_FAIL; USBH_URBStateTypeDef urbStatus = USB

I want to test out the usb audio device middlweare but it seem the i can't recive any audio packet, the device is configured and stall after. no isochronous transfer is done. The code is just out from cubeMX with no modification. Is there more i have to do. I joined the project on IAR for stm32f4 discovery board.

1- MPU2- RCC 3- ETH4- 5 - 6- Can anyone know how to config ?this is my .IOC file STM32Cube FW_H7 V1.9.0

Hello,I maintain the firmware und update software of a device that integrates a ST microcontroller (STM32L475VET6). The update software is implemented in javascript and c++. In windows 7/8/10 the update software sometimes fails to find the device utilizing c++ windows API functions while the device is in STM DfuSe-mode. The details are described below:The update program process is as follows:1.) The device integrating the STM32L475VET6 microcontroller is connected to the PC via USB cable.2.) A javascript-program is used to establishes a serial connection to the device. If triggered by the user the java-script program sends a json-command via serial connection to the device that restarts the device with starting the bootloader. After reset, the device will be in STM DfuSe-mode.3.) The javascript program calls a C++ program that shall find the device and transfer a new firmware binary to the device.The failure occurs in step 3 where the device on some windows PCs can’t be found. In detai

Hi Sir/Madam,I'm trying to compile x-cube-classb-v2-3-0 STM32G081B_Eval project in IAR 8.40.1 but it giving below linker error.Error[Lp015]: section placement failure: overcommitted content in [0x2000'0020-0x2000'0028] It is compiling fine with IAR 8.32.3 but with IAR 8.40.1 not working. STL 2.3.0 tested with IAR 8.32. I would like to know changes need to done in the STL testcase in order to work with IAR 8.40.1.Please help to resolve this error?

I'm working on a project that requires USB_OTG_FS and USB_DEVICE as MSC; I've managed to hook up the SD card to the USB_DEVICE layer and the HAL_SD_ReadBlocks works fine and I can even play back music from the SD Card via the MSC interface. However the HAL_SD_WriteBlocks gives me a buffer underrun error; and the HAL_SD_WriteBlocks_DMA would work, but it corrupts files; I assume that's cuz I would have to wait a little for the transfer to complete:My question is: how would I go about doing that?The SDIO is in 4 bit Wide Bus mode and the microcontroller is an STM32F405RGThanks!

HelloI'd like to get a STM32 board that has support for HS usb transfer, but i'm not sure how to understand if a board supports it or not, how can i know? Is it enough for the STM32 chip to support it and to have a usb port on the board?thanks

Hi. I have STM32F769i-disco board and i want to execute DFSDM audiorecord example in my board.​I have some trouble when executing the DFSDM_audiorecord examples which exists in STM32F769i-eval Board. ​​But i compile it but it doesn't playback..​what is the problem? ​ST experts help me.​My project is attached from zip file. Thanks.​​​​​​​​

I want to make voice recorder with STM32F7 and save voice as .wav in SD card. before this one, i tried to save audio samples as .txt file, but during save them in sd card by FAT, some sample has been lost. therefore i try to another way. Please help me!

I am using an STM32L071CB MCU. It has a Cortex-M0+ core.I noticed that the implementation for `HAL_PWR_EnterSLEEPMode` in the latest version of the HAL uses a NOP instruction to "flush instructions" before WFI. I don't understand how this is guaranteed, however, as I understand the NOP will just add 1 cycle of latency:/** * @brief Enters Sleep mode. * @note In Sleep mode, all I/O pins keep the same state as in Run mode. * @param Regulator: Specifies the regulator state in SLEEP mode. * This parameter can be one of the following values: * @arg PWR_MAINREGULATOR_ON: SLEEP mode with regulator ON * @arg PWR_LOWPOWERREGULATOR_ON: SLEEP mode with low power regulator ON * @param SLEEPEntry: Specifies if SLEEP mode is entered with WFI or WFE instruction. * When WFI entry is used, tick interrupt have to be disabled if not desired as * the interrupt wake up source. * This parameter can be one of the following values: * @arg PWR_SLEEPENTRY_WFI: enter SLEEP mode with WFI instruction *

Hey,I followed the intructions of the Youtube video and put the code in the files like it is described in AN5418 for the STMG474RE. There were no errors after building the code. So I flashed it to the board and tried to run this example.But the STM32CubeMonitor does not show any connected board...The only thing i can do is see the COM port in 'select tracer port'.I read some other Questions about the same problem and tried to find a way to make it work but until now nothing changed.Have i forgotten something or is it possibly the firmware version or something like that?

I am currently developping a system which uses an STM32L496 as a USB host that communicates with up to 6 USB devices through a few hubs. The devices are all CDC or Audio class, and are controlled by the singular STM32L496 on the USB bus, but there is very little data passing through (dozens of messages a second at most and maybe an audio stream), so I think the L4 chips line should be able to handle this task.So for this system I need a USB Host library that is compatible with STM32L4 MCUs and hubs/multiple devices. Now as you may be aware the STM32 USB host library that is part of the STM32L4 package does not support the hub class and so cannot communicate with mutliple devices through a hub. That leaves me with 3rd party solutions. There are several commercial USB Host libraries available that seem to support hubs, see below, and there is also the Azure RTOS USBX stack. The problem is the USBX stack specifically for the L4 line has been announced (STM32Cube and AzureRTOS: Overview) b

I try to use the M4 for ADC. it always report timeout in HAL_ADCEx_Calibration_Start or HAL_ADC_PollForConversion. I use STM32CubeIDE 1.5.1 with STM32Cube FW_H7 V1.8.0. I also try to initialize ADC in M7 and use it M4, get the same error message. If I use M7 core for ADC, everything works good. I go through the all examples, but all examples use M7. Does there a method to do ADC with M4? Thanks,

Hello Sir.​In STM32H747I-DISCO board​, LAN8742A IC cannot read properly.Always read only the 0xFFFF value. In the same source, NUCLEO-H745ZI-Q board reads IO of LAN8742A well.In LAN8742.c &regvalue is always 0xFFFF. if((pObj->IO.GetTick() - tickstart) <= LAN8742_SW_RESET_TO)            {              if(pObj->IO.ReadReg(pObj->DevAddr, LAN8742_BCR, &regvalue) < 0)              {                status = LAN8742_STATUS_READ_ERROR;                break;              }           &nb

My new project use 3 SPI with interrupt method. When the SPI is receivedin HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi) this function How to identify which set of SPI has been received ?

I am starting a new project on STM32H7 and would like to start using AzureRTOS.I have a very primitive example on github here : https://github.com/c4chris/H745-Test I thought I could simply replace FreeRTOS with AzureRTOS on both cores, but so far I failed, I probably do something wrong but I can't figure out what...Thanks for any helpKind regards,Christian

Hi,I have a problem with HAL_UART_TxCpltCallback not getting called after UART transmission using DMA. I set the DMA in Normal mode. I also turned on the UART global interrupt in CubeMX. Actually the USART1_IRQHandler gets called after I send some string over UART. Stepping through the code shows that the HAL_UART_TxCpltCallback is not called because the USART_ISR_TC bit in UART->SR register is not set. I don't know why is that? Maybe I configured something wrong?​Thanks for your help :)

Hello,We have purchased the STM32F769I-DISCO KIT as we plan to use STM32F769I in USB audio IN/OUT application.I am trying to make "STM32CubeExpansion_USBAudioStreaming_V1.0.0" example provided by ST working. So far: I have configured the above example in a configuration STM32F769I-DISCO_UAC10-PLAY and tested the USB stream OUT successfully.I have configured the example as STM32F769I-DISCO_UAC10-REC. The recordings using the MEMS microphones on the KIT is working fine as expected. In our application we will have a codec similar as the one (WM8994) on the STM32F769I-DISCO KIT and we need to stream IN and OUT thru that codec. On the STM32F769I-DISCO KIT there is "Line in" connector to the WM8994 codec. And I am trying to make recordings working using the "Line in". As the example uses the PDM MEMS microphones I have to make some changes. In the above example I have noticed a macro which seems to switch between the MEMS microphones and the WM8994 "Line in" (INPUT_DEVICE_ANALOG_MIC)In the f

I am trying to jump from bootloader from application, I tried the methods given here(adapted to jump to application from bootloader) and here.I am always getting hardfault on executing the setmsp call. The disassembly of the __set_MSP translates to LDR      R3, [R4]MSR      MSP, R3Where the contents of R4 is 0080 2000, which is the application start address, and contents at address 0x00802000 is 0x24080000 which is the stack pointer value. The fault bits set on hardfault are PRECISERR at address(BFAR) 0080 2000. Don't know how to solve this.

..

I am working with stm32f769 to record using mems sensor and board support package library for stm32f769. But I have problem when using BSP_AUDIO_IN_Record function. I realized that the HAL_DFSDM_FilterRegConvCpltCallback and HAL_DFSDM_FilterRegConvHalfCpltCallback function was not called when execution finished and no sound value was saved, but the application still works fine with the template from ST. Does anybody could help me to how can I fix thisThank! My code:int main(void){ /* Enable I-Cache---------------------------------------------------------*/SCB_EnableICache();/* Enable D-Cache---------------------------------------------------------*/SCB_EnableDCache();/* MCU Configuration--------------------------------------------------------*//* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init();/* USER CODE BEGIN Init *//* USER CODE END Init *//* Configure the system clock */ SystemClock_Config();/* USER CODE BEGIN SysInit *//* USER CODE END SysI

Recently, i was trying to integrate the USB-PD library from ST with the support for the STUSB1602 IC that we have on our custom hardware. I found out that the precompiled library from ST supports only the Cortex M0, M33 and M4 MCU's.... Why is that? I really need help for integration of that lib with Cortex M7 to be able to make my custom hardware charge faster on the USB-C. Thanks,