Others: STM32 MCUs related

I’m trying to interface the onboard ISM43362 Wi-Fi module of the STM32BL475 using STM32CubeIDE, but I couldn't find any proper resources or example code online.

Hello,Where can I find the HAL API files and descriptions of the HAL API for the STM32F411 microcontroller?

Hi all,I’d like to share with you a project I recently completed – a digitally-controlled linear power supply built around the STM32F030CCT6 microcontroller.The power stage uses a classic analog linear regulator topology, known for its simplicity, reliability, and low output noise. To bring it into the modern age, I’ve added::small_blue_diamond:Digital control and monitoring using STM32F030CCT6:small_blue_diamond:LCD display with rotary encoder for local control:small_blue_diamond:Remote control via I²C interface:small_blue_diamond:Possibility to link and control multiple units in coordination:small_blue_diamond:Fully open source – schematics, firmware, and documentation availableThis is a well-working and stable design, ideal for home-built lab power supplies. It’s intended for electronics hobbyists who want a practical, reproducible, and expandable project that combines classic analog performance with basic digital control features.:link:Project page: https://www.stm32dds.tk/stm32-ps

Hello! With this Simulink model, containing a MATLAB function to convert the vector of numbers to ASCII, I was able to send a vector of numbers until a length of only [1x20], while with a length >20, the simulink model works normally with the external mode, with the MATLAB function being able to handle any length of any row vector as an input, but no messages are displayed on Node-red.Is it possible that the problem would be with the STM32 Mqtt block? Perhaps you can help me, please, by telling me if there are some settings in CubeMX that I can modify.I really appreciate any help you can provide.

I am working with STM32H747 and a display that has an ST7701 on it.  I am struggling to get it to work.  Does anyone have an ST7701 code (LTDC, DSI, and ST7701 init) or a sample project for it?  Thanks

Context: I am trying to read the Chip ID from a BMP280 sensor using SPI communication with an STM32 microcontroller. The expected Chip ID value is 0x58. However, I am encountering inconsistent results when calling the function to read the Chip ID multiple times. BMP280_Read_CHIP_ID(); BMP280_Read_CHIP_ID(); Problem: When I call the BMP280_Read_CHIP_ID function twice consecutively, I get the following outputs:Chip ID Read - 0Chip ID Read - 58UART Output.The first read returns 0x00 (unexpected), while the second read returns the correct Chip ID 0x58.Code:Here is the function I am using to read the Chip ID:  void BMP280_Read_CHIP_ID() { uint8_t data = 0; uint8_t address = 0xD0; address |= 0x80; CS_Enable(); delay_ms(2); SPI_Transmit(&address, 1); delay_ms(2); SPI_Receive(&data, 1); delay_ms(2); CS_Disable(); printf("Chip ID Read - %x\n\r", data); }  SPI_Transmit Function: void SPI_Transmit (uint8_t *data, int size) { int i=0; while (

So I'm trying to configure communication with the MPU6050 from the STM32 Black Pill module using the driver from anasvag575, I reconfigured the driver to LL library because the driver used the standard library and I don't want it to become a mess later.The problem I'm facing now is that it seems like the thing stopped working when it after calling LL_I2C_TransmitData8 and it just stuck waiting for the ADDR bit to be set but that never happened. The logic shows that it generated the start correctly but the address is very inconsistent when I test it by resetting it Sometimes it generated the correct address, sometimes SCL goes high at the same time as SDA. I've tried changing the I2C speed configuration but sometimes it makes worse where SCL can't even transfer a bit.I've tried different libraries but obviously none of them really worked, some got stuck waiting for the start bit flag instead. static inline void i2c_write_data(I2C_TypeDef *i2c_handle, uint8_t address, uin

I want to connect the AD7605-4BSTZ ADC (operating from +10V to -10V) with the STM32H743. I plan to use a parallel connection for 16 bits to achieve high accuracy, and I also want to utilize DMA. I need to configure the microcontroller in STM Cube IDE to use this connection. Additionally, I would like to simulate the setup before starting the manufacturing process.

Dear sir,We are using the STM32H747XIH6 microcontroller in our custom board, which includes Wi-Fi functionality connected via the SDIO interface. The Wi-Fi module part number is LBEE5KL1DX-883.Could you please provide a reference source or sample code for the Wi-Fi bring-up? We are looking for a standalone application that can simply perform a Wi-Fi scan to verify the hardware functionality.If an operating system (OS) is required for this, kindly help us with the appropriate OS source and setup steps, as we are new to STM32 MCUs.   Best regards,Samudralankaiah.

I have been using the STM32H753ZI100_24  for getting pressure data from the MS5611-01BA03 mems sensor. The debugger stops at SystemClock_Config() function in the code of reading prom registers from the MS5611-01BA03  sensor as per the datasheet Barometre datasheet int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* MPU Configuration--------------------------------------------------------*/ MPU_Config(); /* 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 SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_SPI1_Init(); /* USER CODE BEGIN 2 */ uint16_t prom[8] = {0}; uint8_t rst_cmd = 0x1E; // Reset command HAL_GPIO_WritePin(GPIOD, GPIO_

I'm trying to convert a 3D printer into a CNC, but I can't find any software to use it with my HA753ZI core. Any ideas would be appreciated. Regards.

am developing smart meter with stm32h750vbt6,I develop  my own stm32 PCB board and is working well  if I run the project with other hardware that has libraries .the problem is for the ac voltage current and voltage sensor am using ACS758 for current and ZMPT101B for voltage ,the ADC are not reading any thing while everything is well .does any libraries exist for them or any way I can use to get the measurements so that the smart meter will work well?

hi, community!I need to use SDIO integrated into Stm32f407VET6 BlackBoard I followed two videos on youtube and always gave me the same problem  res=f_mount(&fs,"",1); always gives me FR_NOT_READY I asked Gemini and he told me to change it to   res=f_mount(&fs,"",0); when I change it the function return FR_OK but the rest of the functions not work like  f_write f_read are return FR_NOT_READYI found someone in stack overflow has the same problem but without solutionI hope you can help me videos I followed : STM32F4 Discovery board - Keil 5 IDE with CubeMX: Tutorial 22 SD Card SDIO 4 Bits + DMA - YouTubeSD card using SDIO in STM32 || Uart RIng buffer || 4-Bit Mode || CubeMx - YouTubestack overflow question:stm32 - SD card issue in SDIO peripheral in Stm32f407VET6 Black Board - Stack Overflowthank you

I'm about to program a continously running DMA stream (using GPDMA1 (circularly))  in an STM32H503CBU6. But the start already fails. during the setup of the i2s->hdmatx pointer is zero causing the crash when it wants to get initialized.I'm in need of a running example with an I2S device configured with a continously running DMA write streamwith a length of 1 (32 word) to the I2S device. Help urgently needed, please.int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* 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 SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_GPDMA1_Init(); MX_ICACHE_Init(); MX_I2C1_Init(); MX_I2S2_Init(); MX_TIM1_Init

 I am encountering the FR_NOT_READY and FR_INVALID_OBJECT error when trying to mount the SD card and write a file in RVT101HVSFWCA0 Riverdi display. Could you please advise on how to resolve these issues?

Hello,Wich STM32 can i use for a USB HID connection with C# sotware ?Best regards. 

Hi! Apologies up front that I realize this is a relatively entry-level question - I am trying to build some experience selecting TVS diodes. My design uses a TagConnect footprint for SWD to an stm32u0. I intend to run the MCU at 1.8V, though I'm unsure how much that matters. I found this very excellent Application Note from ST, and in section 3.6 there are even some parts provided for this exact use. When I look at the datasheet for the ESDALC6V1W, however, it seems like it's showing a working voltage of 3V, with a breakdown voltage of 7.2V. I'm confused by this - it seems like a typical working voltage for a 3.3V MCU would want to be >3.3V. If I understand correctly, a working voltage of 3V in such a system would distort the SWD data signals a bit (though, as I understand it, this would work fine if we're operating the MCU at 1.8V).More confusing to me is that the breakdown voltage of 7.2V seems much higher than the Absolute Maximums listed for most GPIOs (particular

HiI am trying to read the SGP40 VOC sensor with the code below, but i can't read the raw data. I can transmit the command but when i try to receive data, it can not receive. I am using STM32F103 mcu. Any advise .uint8_t SGP40_ReadVOC(void) { uint8_t cmd[2] = {0x26, 0x0F}; uint8_t rx_buf[6]; uint16_t voc_raw = 0; HAL_Delay(250); if (HAL_I2C_Master_Transmit(&hi2c1, 0xB2, cmd, 2, HAL_MAX_DELAY) != HAL_OK) { return 0xFF; } HAL_Delay(30); if (HAL_I2C_Master_Receive(&hi2c1, 0xB3, rx_buf, 6, HAL_MAX_DELAY) != HAL_OK) { return 0xFF; } voc_raw = (rx_buf[0] << 8) | rx_buf[1]; return voc_raw >> 8; } 

I am using CAN on an STM32F042F6P6. I want to detect if an attached CAN transceiver is working or not. While there is no guarantee that there are other CAN nodes present on the bus, a 120 ohm termination resistor is always present. My original plan was to try transmitting something on the bus and checking for errors. If I only get an acknowledgement error, then the transceiver is probably OK. If I get a bit error, bit stuffing error or a bus off error, something is wrong with the transceiver. However, when I tried to put this in practice, I found that the STM was never throwing any errors. If I removed my transceiver and reattached it to simulate a failure, I found that although CAN transmission stopped, no errors were triggered and the hcan was stuck in HAL_CAN_STATE_LISTENING state. What could be going wrong here?   All parameters except Automatic Retransmission have been disabled in the ioc file. Global interrupt for CAN has been enabled. Attached code for reference. #incl

Hello, I am using w5500 wiznet ethernet module with my stm32H723ZGT6 mcu but it is not working. I used this same code with my F4 series controller and it is working fine but this same code after implementing it with H7 series it is not working can anyone help me out. Please refer to the attached code for reference.

Hello ST team,I am working on USB audio class 2.0. I am using STM32F401, where I have connected SD card using SPI protocol and at the other end I have connected mobile using USB ( USB Audio Class 2.0). I have used tinyusb for USB support and FatFS for Filesystem.AIM:1) I have to read the PCM samples from SD card.2) Concurrently I need to send PCM samples to over USB ( USB Audio Class 2.0) to HOST (mobile).3) I am recording the PCM samples into my mobile phone recorder.point 1 and 2 is achieved, but issue in occurring in point 3. The recorded file is noisyI have using configuration which mention below:tusb_desc_device_t const desc_device ={.bLength = sizeof(tusb_desc_device_t),.bDescriptorType = TUSB_DESC_DEVICE,.bcdUSB = 0x0200, // Use Interface Association Descriptor (IAD) for Audio// As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1).bDeviceClass = TUSB_CLASS_MISC,.bDeviceSubClass = MISC_SUBCLASS_COMMON,.bDeviceProtocol = MISC_PROT

Hi everyone,I’m integrating the Honeywell MPRLS02.5BG0000SA pressure sensor via SPI with an STM32H753I-EVAL2 board and encountering some inconsistent behavior. Setup DetailsSensor: Honeywell MPRLS02.5BG0000SABreakout Board: Based on MPRLS0015PA0000SAB, but the sensor was manually replaced with the 02.5BG variantMCU: STM32H753I-EVAL2 (Cortex-M7)Interface: SPISPI Clock Speed: 50 kHz (as required by Honeywell for proper communication)Chip Select (CS): Manually toggled via custom GPIO (not using STM32’s hardware NSS)Power: 3.3V supply with decoupling capacitors and pull-ups as recommendedTools: Logic analyzer to validate SPI signals and sequencesPartial SuccessI can reliably communicate with the sensor only when I call __HAL_SPI_ENABLE() immediately before pulling CS low and starting the SPI transaction, and then drive CS high after the transaction ends.This workaround lets me receive pressure data occasionally.Inconsistent IssuesDespite partial communication success, I encounter the

Hi,I have STM32H753IITx + OV5640 + W9812G6KH-6 + SD Card on SPI,  on a self made custom board.I objective is to capture static image with camera and store it on a SD card. I have tested this setup in three situations:1. By not using Ext RAM and using small resolution to fit the image in internal RAM, this setup works fine and i am able to write the image to SD card. 2. Writing some data manually on Ext RAM which looks fine on memory monitor window.3. When i try to use the Ext RAM with DCMI, some data gets written to Ext RAM but code never finds the jpeg start bytes i.e FF D9. Going step by step so i have kept everything else same even the resolution.This is how buffers are defined:Internal RAM: __attribute__((section(".ram_d1"))) uint8_t jpeg_data_buf[JPEG_BUF_SIZE_MAX]; // Store internal ramExternal RAM:__attribute__((section(".sdram_data"))) uint8_t jpeg_data_buf[JPEG_BUF_SIZE_MAX]; // Store ext ram Flash.ld file snip: (Modified).sdram_data(NOLOAD) :{. = ALIGN(32)

Hi All, I am looking for a small 4-5 digit monochrome display to use with STM32L0 series in a coin cell powered application. Actually the display I am searching is similar to the ones used in kids watch or small temperature or humidity meters. I only need to display time or a 3 digit counter. I prefer to have wires or pins instead of the glass display with conducting rubber alignment and the length of the display should be less than 3cm. It is really hard to find even how to search for this display. It would be really great if someone can help with this.  Attaching an image as an example.  Thanks in advance,Best regards

I have attached the X-NUCLEO-IKS02A1 on the NUCLEO-L476RG board and connected it to my laptop. I opened tge MEMS Studio and when I am trying to connect, it is showing Board Not Identified as shown in the attached snap.How should I proceed further?