STM32 MCUs Embedded software

Hi Community,I am working on STM32H747I-DISCO Board and trying to bringup digital MEMS Mic (MP34DT05) which is integrated on STM32H7-DISCO Board.I am trying to record random voice for 5 seconds and need to play back via audio jack out which is connected to codec also it is integrated on the board. I am sharing you schematic of the board as below:MP34DT05 is connected to MCU directly with SAI4 Interface and Solder Brifdges are provided to connect via codec Here I developed the application code to interface and record via MIC and playback via Audio Jack out.

Hi, I try to get the USB-Host running with USBX. Hardware is a custom board with TCPP02 and STM32U575. Init process is running, but I never get an interrupt (ux_host_event_callback) when plugging in a USB stick. Any idea? ioc file and schematic are attached. Best regards, Achim

The MCU I use is H533, but I guess the SPI peripheral in other MCUs would be similar.I'm looking for the recommended way to regularly transmit over SPI "small" data frames (in the sense that one frame fits into the FIFO) that can vary in size. For example, in response to different events I would be updating values of different DACs or shift registers and they all have their own data frame format and size, usually between 16 and 32 bits.SPI peripheral has TSIZE and DSIZE settings seemingly exactly for that, but they require disabling the SPI peripheral to be changed (for TSIZE it's documented, for DSIZE, it seems not), and it adds latency to transfers.So far it seems the optimal approach in my case is to as follows. Please bear with me for a moment and let me know if I'm missing something.1. Keep DSIZE at 8 bits.2. Keep the SPI enabled and set CSTART once at the beginning.LL_SPI_Enable(SPIx); LL_SPI_

Hello, I want to use an I2C port of a STM32F411 MCU (MCU_A) in target mode to receive data from another MCU (MCU_B), MCU_B code already existing and verified with other receivers.I configured the project with STM32CubeMX, with interrupts enabled to handle communication in interrupt mode.I used MX standard settings to generate CubeIDE project with HAL code.With some effort for setting up the initialization and other code for MCU_A in CubeIDE, communication looks ok from sending MCU_B perspective.Additional check of SDA and SCL signals with DSO looks ok to. But the problem was: No data was transfered to the receive data buffer in MCU_A. After several hours of debugging, I found a suspicious code section in the HAL code (stm32f4xx_hal_i2c.c).In the HAL function     static void I2C_Slave_ADDR(I2C_HandleTypeDef *hi2c,

Hello, I am searching for a example project to integrate a camera (e.g OV-Series) via DCMI interface. Can someone recommend an ST-Project or else?   Thanks in advance!

Hello, Started to dwell info embedded development and got my hands on a NUCLEO-H7S3L8 development board. Firstly wanted to analyze the example code that comes with the development board and modify it a bit. But when started to debug, it seems to stop at I and D cache enable functions, and example LED blinking disappeared. Has anyone encountered something similar and could help to fix this problem? Only change I made to the example code is set-up a PC8 as a PWM to drive a LED switch. Additionally, tried a mass erase and re-flashing, but still nothing, the problems remains the same as I mentioned. 

I would like to use some of your standard serial page eeprom'shttps://www.st.com/en/memories/standard-serial-page-eeprom.html The problem is that i don't understand how to use your memory loader with these chipshttps://github.com/STMicroelectronics/stm32-mw-extmem-ldr/tree/main  The problem is that this library expects the chips to have 4 byte address and just doesn't work with 3 address chips.  If you go through and just change all the call's to 3 byte address in the library i can make a STLDR file to talk to the chip.  Just trying to see if there's a better way.  You have this custom memory section th

Hello everyone,I am currently trying to create a CMake based C-project for the ST Evaluation board STM32H757I-EVAL, that allows me to render a UI on the MIPI DSI connected display, that comes with it.Due to other work related requirements, I don't want to use TouchGFX, but will later try to add the LVGL framework to create our UI.However, at time of writing I have been unable to configure my project in such a way, that I can manually fill a Framebuffer and have that have any effect on the display. I have created a github repo with a "minimal" example of the configuration efforts so far.A "short" overview:I tried to create said CMake project through the STM32CubeMX code generator, and

Hi, I’m working on a custom board based on STM32H757BITx using an external NOR flash Micron MT25TL01GBBB8ESF-0AAT TR (Dual bank with Quad Lines)Current usageAt the moment, the external flash is mainly used to store UI assets (images/fonts/etc.) for a display. I’m not using the full flash capacity, so I’d like to use an unused region to store a small persistent structure (configuration/status/log header).To keep things organized, I created a partitioning scheme using the linker file, reserving separate address ranges:

I'm trying to compile a basic blinky application for the N6 and failing. I open the latest CubeIDE, import the GPIO_Toggle project (or any other one for that matter) and try to build. I get an error about no rule to make target. Please provide guidance on how to build the basic examples 13:47:52 **** Build of configuration Debug for project GPIO_InfiniteLedToggling_Init_FSBL **** make -j11 all make: *** No rule to make target '/Users/workspace/STM32CubeN6-git/Drivers/STM32N6xx_HAL_Driver/Src/stm32n6xx_ll_exti.c', needed by 'Drivers/STM32N6xx_HAL_Driver/stm32n6xx_ll_exti.o'. Stop. "make -j11 all" terminated with exit code 2. Build might be incomplete. 13:47:52 Build Failed. 1 errors, 0 warnings. (took 83ms) 

HelloCurrently I am working with NUCLEO-N657X0-Q by using STM32CubeIDE_2.1.1 STM32Cube_FW_N6_V1.3.0MxCube v6.17.0Trying to investigate and migrate CDC ACM feature in to the my own project. As basis I am using Ux_Device_CDC_ACM Example provided by ST as reference.It was discovered that Ux_Device_CDC_ACM example would not work properly after MxCube project regeneration -- it goes to the HardFault_Handler() at some point (not defined currently at which point)The investigation showed that the issue is connected with the Optimization level (MxCube updated STM32CubeIDE project files) just only for the one single source file: "stm32n6xx_hal_rcc_ex.c". If optimization level is set to "-O0" for the mentioned file -- HardFault_Handler() is observed. By changing it to the "-O3" -- the application works successfully.Could y

Hello everyone,I am developing a firmware for an **STM32U5** microcontroller using Azure RTOS (ThreadX / USBX). I am implementing a USB Composite Device with two classes: **CDC** (Virtual COM Port) and **MSC** (Mass Storage Class). The MSC is interfaced with an eMMC using an 8-bit bus for data communication.I am facing a persistent issue that I cannot seem to resolve: the device drops the USB connection after about 5 to 10 minutes of operation. By debugging the code, I noticed that the disconnection is triggered because the device eventually calls the HAL_PCD_DisconnectCallback() function.My main concern (and source of confusion) is that this behavior is highly OS-dependent. For instance, on my dual-boot PC, the device works flawlessly without a single disconnection on **Ubuntu 22.04**, but it consistently crashes/disconnects on **Windows**.### What I see on Windows (Event Viewer)Right before the disconnection occurs, Windows throws several SCSI ti

Hello everyone, I am trying to bring up a NetX Duo TCP Server on the STM32H755ZIQ Nucleo board using Azure RTOS ThreadX + NetX Duo, but I keep running into issues during initialization and runtime. Unfortunately, I haven't been able to find any fully working examples for dual-core H7 devices using NetX Duo. Most examples online are either for single-core MCUs or for different boards. Here is what I am trying to achieve: STM32H755 Nucleo board M7 core running ThreadX + NetX Duo Basic TCP server (listening on a port, accepting connections, sending/receiving data) Using STM32CubeMX for configuration LwIP is NOT used — only NetX Duo Ethernet driver: nx_stm32_eth_driver (CubeMX generated).   It seems like the current CubeMX-generated NetX Duo code for the STM32H745/H755 s

Hello,I am working on an STM32F7 project where I need to sample multiple ADC peripherals using DMA triggered by a timer. Problem: No ADC data is being written to ADC_BUF or ADC3_BUF even though main loop runs (buffers ADC_BUF and ADC3_BUF remains zero while counter increases) Current Setup:ADC1: 1 Channel, DMA2 Stream 0, triggered by TIM2 TRGO UPDATE ADC3: 2 Channels, DMA2 Stream 1, triggered by TIM2 CC2 DMA: Circular mode, DMAContinuousRequests enabled TIM2: 10 Hz update event Mode: ContinuousConvMode is Disabled, ScanConvMode is Enabled What do I need to change to fix this? /* USER CODE BEGIN PV */ volatile uint16_t ADC_BUF[ADC_BUF_LEN]; volatile uint16_t ADC3_BUF[ADC_BUF_LEN]; uint16_t counter = 0; /* USER CODE BEGIN PV */ /* USER CODE BEGIN 2 */ HAL_CAN_Start(&hcan1); HAL_ADC_Start_DMA(&hadc1, (uint32_t*)ADC_BUF, ADC_BUF_LEN); HAL_ADC_Start_DMA(&ha

Hello,I am working with the STM32H7B3I-EVAL boardI have I2C slave model work properly the default adress used by contoller given in schematich work on 84 aand 85 adress but the other peripheral adress not get give me the roadmap for the coding of communication protocolsI2C Slave Address detect. how can i code done for other peripherals using mfx expander give me solution  didnt solve the issue.Thank you

New question split from this post. OK THANK  YOU @mƎALLEm , CAN U SHARE THE RMII CONFIGURATION FOR STM32H745BIT6?  

I've developed on an STM32U5A9J-DK using ThreadX, which, via USBX, creates a loopback audio interface between the PC and the device in the way: PC->speaker on device->microphone on device->PC.The devices are correctly seen and are working, as I'm able to enumerate them on the host and the device correctly receives audio frame,s and I'm able to process them into the device.Now, the issue is that I'm unable to send the audio packets back to the host.My implementation is pretty simple: I'm using the USBD_AUDIO_PlaybackStreamFrameDone function to read the audio frames and send them back to the microphone interface withVOID USBD_AUDIO_PlaybackStreamFrameDone(UX_DEVICE_CLASS_AUDIO_STREAM *audio_play_stream, ULONG length) { UCHAR *read_buffer; ULONG read_length; UCHAR *write_buffer; ULONG

We are currently using LPTIM1 to measure the time period. As this operation needs to be performed frequently, we are using the following APIs:   HAL_LPTIM_TimeOut_Stop_IT(&hlptim1) HAL_LPTIM_TimeOut_Start_IT(&hlptim1, 0xXXXX, 0xXXXX)   During this process, the LPTIM_Disable() function temporarily disables all interrupts using PRIMASK while waiting for the LPTIM_FLAG_ARROK and LPTIM_FLAG_CMPOK flags.   This global interrupt masking is causing data loss on LPUART1, which is operating at 115200 baud. As a result, we are encountering ORE (Overrun Error) due to missed UART interrupts.   Given this behaviour, we would like your guidance on the following:   Is it safe to modify the LPTIM_Disable() implementation by removing or commenting out the PRIMASK-based global interrupt disable? Alternatively, is

Hello ST Community,I M USING STM32H745I-DISCO (MB1381-H745XI-B02), WHICH COME DEFAULT MII MODE, TO CONFIGURE IT ON RMII, WHAT CHANGES I HAVE TO DO IN HARDWARE, IOC. AS THIS BOARD HAVE ETHERNET IC LAN8742A-CZ-TR WHICH HAVE BOTH MII,RMII PROTOCOLS.AS I HAVE SEEN SOME VIDEOS ON ETHERNET FOR DIFFERENT STM32 CONTROLLER IN RMII, I M NOT ABLE TO GET RESULT.  I WANTED TO KNOW DO THIS BOARD CONFIGURE IN RMII, IF YES THEN TELL ME HOW I CAN DO. HERE IS CONFIGURATION I HAVE DONE IN MY PROJECT.  PG11 ETH_TX_EN ARM Cortex-M7 n/a Alternate Function Push Pull No pull-up and no pull-down Very High n/a   true PG14 ETH_TXD1 ARM Cortex-M7 n/a Alternate Function Push Pull No pull-up and no pull-down Very High n/a   true

NUCLEO-F767ZI I'm trying to use the LwIP middleware which I have enabled in MX. First I'm trying to check if an ethernet cable is attached or not. I have setup UART3 to use printf (which works as expected) I've set the callback in lwip.c to print when the cable is removed or plugged in or so I thought but I get no message when I connect or disconnect the cable. The LEDs on the socket light up when the cable is connected, so the board at some level does see the cable. What am I missing here? EDIT:: LWIP_NETIF_LINK_CALLBACK was enabled in MX // In main.c MX_LWIP_Init(); /* USER CODE BEGIN WHILE */ while (1) { MX_LWIP_Process(); /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ } /* USER CODE END 3 */ // In lwip.c the callback function that is registered in MX_LWIP_Init() static void ethernet_link_status_updated(struct netif *netif) { if (netif_is_up(netif)) { /* USER CODE BE

Hello STM team,   We are working to interface the  NUCLEO-U5A5ZJ-Q and nRF7002-DK using QSPI. We are using vanillas zephyr. We are able to built the code for SPI. But can not be able to built for QSPI. It will be very helpful if you provide a proper support to interface this.

Hello,   I configured a timer in STM32CubeMX2 to use 2 channels (HAL_TIM_CHANNEL_1 and HAL_TIM_CHANNEL_3). After the mx_system_init() I use the following code: hal_tim_handle_t *htim5 = mx_tim5_gethandle(); if (HAL_TIM_OC_StartChannel(htim5, HAL_TIM_CHANNEL_1) != HAL_OK) { return (-1); } if (HAL_TIM_OC_StartChannel(htim5, HAL_TIM_CHANNEL_3) != HAL_OK) { return (-1); } if (HAL_TIM_Start(htim5) != HAL_OK) { return (-1); }  The first channel starts as expected, but when I attempt to start the second channel the code causes an assert in HAL_TIM_OC_StartChannel: /* Check and update the channel state */ ASSERT_DBG_STATE(htim->channel_states[channel], HAL_TIM_OC_CHANNEL_STATE_IDLE);   Do I need to do anything different?   Regards, -Gil

Hi all.I wish disable auto PAD disable CRC append.  Send packet use low_level_output(), before call HAL_ETH_Transmit_IT()I set TxConfig.ChecksumCtrl = ETH_CHECKSUM_DISABLE; TxConfig.CRCPadCtrl = ETH_CRC_PAD_DISABLE;but packet allways pad to 60byte,if use TxConfig.CRCPadCtrl = ETH_CRC_PAD_DISABLE;, no packet outputif use TxConfig.CRCPadCtrl = ETH_CRC_INSERT;  output fine but have 4byte crcr append.How to do , NO-PAD NO-CRC send packet?

I'm trying to interface with a W25N NAND flash chip on an STM32H7, over QSPI. I've only got consistent output out of the reads, and even then, I notice the system hangs forever and can't accept anymore input after a read. Everything else will hang immediately, even a print statement to the terminal at the top of the function won't appear, and the whole system hangs.   From some similar issues I found online, I thought it would be a timing issue, and so I tried to implement a status register check. That's my first function in my excerpt below. However, this function couldn't even run alone without again hanging the system (meaning something else is causing the resets, program, clear, and even status check to hang). What else could be the issue that stops everything from running?   Any advice much appreciated. Thanks very much in advance.

Hardware: STEVAL-MKI109D (STM32H563ZI)CubeMX: 6.17.0CubeIDE: 2.1.0Connection: USB-C directly to STM32H563 USB OTG (no ST-LINK chip)PROBLEM:I need USB CDC Virtual COM Port in a bare-metal application(no RTOS). CubeMX 6.17.0 for STM32H563 only offers:- USBX (requires ThreadX)- ThreadX- FileX- LevelXClassic USB_Device middleware (usbd_cdc_if.h / CDC_Transmit_FS)is NOT available for STM32H5 series in CubeMX 6.17.0.USBX requires ThreadX RTOS. Without ThreadX running,MX_USBX_Init() causes the board to crash silently —after DFU flash the board is completely invisible on USB(no lsusb entry, no /dev/ttyACM*).QUESTIONS:1. How do I implement USB CDC on STM32H563 WITHOUT ThreadX?2. Is there a way to enable classic USB_Device stack for STM32H5in CubeMX 6.17.0?3. Is there a bare-metal USBX CDC example that does NOT requireThreadX for STM32H5?4. Can