STM32 MCUs Products

I tried to use this board to capture image by using DCMI DMA with a ov2640 camera. The problem is data read is successful in DCMI(by watching the register) but the buffer(initialized:uint32_t buffer[16000]={0}) used to store the image data was the same as it was initialized. I think this is a DMA problem.Register after running"HAL_DCMI_Start_DMA"

Hello everyone,I hope you're all doing well.I'm currently working on a project with the STM32F103RET6, and I've encountered an issue when writing data to a page of Flash memory. I'm using the FLASH_ProgramHalfWord function to write half-word data. While this function works correctly about 90% of the time, occasionally it does not return FLASH_COMPLETE.To resolve the problem, I find that I need to erase the entire page. If I don't perform the page erase, the issue persists.The device operates on battery power and initializes from scratch each time it is used.Has anyone experienced a similar problem or have suggestions on how to address this issue? Any insights or advice would be greatly appreciated.Thank you!  

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Folks,Does HAL have constants for the total number of ADC channels? I want to iterate through all channels and make sure that all of them are disabled.  Here's the code I have in mind.   ADC_ChannelConfTypeDef sConfig = {0}; sConfig.Rank = ADC_RANK_NONE; // disable all channels const uint8_t nChannels = 19; // Does HAL already have a constant for the number of ADC channels? for (uint32_t iChannel = 0; iChannel < nChannels; ++iChannel) { sConfig.Channel = iChannel; if (HAL_ADC_ConfigChannel(hadc, &sConfig) != HAL_OK) Error_Handler(); } I'm declaring my own constant nChannels = 19 .  The number 19 came from the STM32G4 family reference manual.  I wonder if HAL already has a constant for that.Best regards,- Nick

Hello everyone,​I use GPIO example project (from repository of ST) and open it by STM32 cube IDE. then when I built it give error: make all make: *** No rule to make target ...How to fix this error?Thank you! Sorry cause my English not good.​​

I have 19 nucleo-u5a5zj-q, my program successfully run on 18 of then but fails for 1 (I did not modify the board nor connect anything else than the STLINK USB cable). Failure here means it detects a hardfault.Is there anything that I can use to verify that the failing board is fully functional ? (or at least the MCU on the board).Notes:In this ticket I do NOT ask about fixing my program (I created another ticket for that, see https://community.st.com/t5/stm32-mcus-products/what-is-the-cause-of-this-hardfault/td-p/702478 ).Another board exhibit a similar failure but with another program.  

my task is to use a ov2640 camera to capture photo for further using(yolo model input),I've configure DMA DCMI for this task. Now the situation is  the sccb communication with ov2640 is ok but when I start DMA to get the photo data I can't get the photo. It seems no write to my buffer. I get the data as same as I initialize the buffer(photo below:I initialized the image_buffer array {1,1,1,2,2,2} and the result didn't change).My OV2640 Pins: GND SCL SDA RST PWDN DCLK NC D0-D7 VSNYC HREFI have no sdcards or other extern memory devices connecting to my NUCLEO-H745ZI-QI have tried several successful program but got same resultMy code(uvision5) be

Hi, I'm trying to add an external memory and i choose that chip because it can communicate with QSPI and there is no need for designing due the chip is SOIC-8 which i found a compatible board for it. I'm getting issues with the driver writing i'm getting all the time a hard fault or infinite loop. i use chatGPT for the driver writing because i didn't found any written one.My QUADSPI configuration:This is the driver:'''c HAL_StatusTypeDef QSPI_EnterQPI(QSPI_HandleTypeDef *hqspi){QSPI_CommandTypeDef s_com

Hello guys,Can anyone help or provide me the boot sequence diagram of STM32H755xI which has dual-core (M7 and M4)?Thanks a lot !!!

Hi all! I am trying to communicate with the Nucleo-L4P5ZG via the LPUART1 peripheral over ST-LINK, however it doesn't seem to be transmitting or receiving anything. Following is my system clock initialization code (non-relevant parts cut out): #pragma once #include <stm32l4xx.h> #include <stdbool.h> #include <stdint.h> #include <stdio.h> #include <string.h> #define SYS_FREQUENCY 16000000 uint32_t SystemCoreClock; // Required by CMSIS static inline void clock_init(void) { SCB->CPACR |= 15 << 20; // Enable FPU RCC->CR |= RCC_CR_HSION; // Set HSI on while (!(RCC->CR & RCC_CR_HSIRDY)) {} RCC->CFGR &= ~(RCC_CFGR_SW); RCC->CFGR |= RCC_CFGR_SW_HSI; // Set HSI as clock source while ((RCC->CFGR & RCC_CFGR_SWS) != RCC_CFGR_SWS_HSI) {}; rng_init(); // Initialise random number generator RCC->APB2ENR |= RCC_APB2ENR_SYSCFGEN; // Enable SYSCFG SystemCor

Hi to all,I am moving to SPM32CubeIDE on Linux and, as a newby, I encountered a lot of problems.I started a new empty C++ project and I put all my flies and classes.I also included syscall.c file (renamed in syscall.cpp) as in it there are _seek(), _read(), ..... routines, but everytime I compile my program I always got: (.text._close_r+0xc): warning: _close is not implemented and will always fail(.text._lseek_r+0x10): warning: _lseek is not implemented and will always fail(.text._read_r+0x10): warning: _read is not implemented and will always fail(.text._write_r+0x10): warning: _write is not implemented and will always failFinished building target: F303.elf What should I do to make the linker to attach those routines? Thank youFreya 

Such as the title，why is the function address in the vector table offset by 1 byte from the actual function address?In the vector table:Actually:and

Hello,I am trying write a LoRa library to STM32F446VET7 in my application.In the LoRa E220-400T30S documentation, it tells me to set the UART settings for configuration mode to 9600 and 8N1 and to give 1 to M0 - M1 pins.After doing that I am trying an exampe in below of the documentI am

Hi guys, I'm fairly a newbie to stm32 so please forgive me if I make some mistakes, I'm trying to configure a driver code for a SPI FT812 NHD display on STM32G474VETx chipset, so far I've been able find a driver code and ported it over onto STM32, however the driver code configured its SPI manually so I figured I'd follow the way it does that as well but I'm worried that I might did it wrong since the program can't seem to get the correct ID bit from the LCD register and I suspect the way I configured SPI pins might be the problem.I have 2 gpio_init functions, MX_GPIO_Init is for other peripherals and EVE_init_spi is for the display, which I'm having trouble with, the 3 SPI1 pins are SCK -PA5 , MOSI/D1 -PA6 and MISO/D0 -PB5, this is one of the thing that I changed from the original driver code because it appears SPI1 pins on other chipsets are in the order of PA5,PA6,PA7, and they are all on GPIOA whereas mine is separate into GPIOA and GPIOB

Using a stm32f303RE Nucleo board which has 4 (independent ?) ADC blocks.I'm trying to read a single channel from each of the 4 ADC under DMA simultaneously triggered from the same timer update event but I'm only getting about 30-40% of the data I'm asking for. Note that using 4 channels of a single ADC would result in skew as the reads would be sequential so I'd loose timing accuracyA single channel works fine (ADC1/Chan 1) and using HAL_ADC_Start_DMA() with a length of 500, SamplingTime of ADC_SAMPLETIME_2CYCLES_5 triggered from TIM2 at 800KHz I get what I'd expect.Running ADC2/Chan 5 at the same time (same speed & parameters) results in both blocks only receiving about 200 words of good data followed by 300 words of garbage (values close to 0). Adding ADC3 & ADC4 gets progressively less valid data.What comes to mind are the following questions:Can I trigger multiple ADC/DMA tr

Hi,I am working on stm32g491re custom board.I am using STM32cubeide  and segger jlink debugger with serial wire debug.After flashing the firmware program getting struct at intializationlike HAL_GPIO_INIT()and HAL_TIMER_init()if I try to suspend the running/restart the controller through IDE i am getting issue like belowNo source available for "(gdb[18].proc[42000].threadGroup[i1],gdb[18].proc[42000].OSthread[1]).thread[1].frame[0]"and Break at address "0x1fff469a" with no debug information available, or outside of program code.Break at address "0x1fff408e" with no debug information available, or outside of program codeIn GPIO i am using one exti gpio if i comment it's executing remaining program.Same happens with timer interrupt also.Is there thing missing for interrupts and its not happening every time 8 out of 10 times its happening.  Any one can suggestThanks

Hello, I am trying to measure Junction temperature of the STM32H725IG device.ADC3 is configured as an errata say to have only temperature channel 17 and continuous measurement. Temperature I see seems to be between 60 and 80 degree Celsius.I tried also to enable Digital temperature sensor, expecting that both sensors will measure Junction temperature, but difference between readings is too big - around 12 to 15 degree Celsius less from DTS than from ADC3. Is this normal behavior and which sensor I shall use in order to obtain  the real junction temperature, as it is needed to calculate the device lifetime?  Regards, 

Dear All,I am attempting to migrate a project from a STM32F74NGH MCU to a STM32U599NJH MCU.In the F7 MCU I am applying the PWM on CH1 of TIM3 that corresponds to pin PB4.On the new setup I need to apply the PWM to pin PC5, which corresponds to TIM1, CH4N.I am a bit confused on what exactly does the N mean in CH4N. So far I have not been able to drive my device as expected using the PWM. If I set PC5 to output and set it properly then my external device is operating as expecting for a 100% dutycycle.In my old project the Internal Clock was set to 200MHz and this is the configuration of timer 3:

Implementing a I2C in slave mode, I found in the reference manual,26.7.2 Control register 2 (I2C_CR2):Bit 15 NACK: NACK generation (slave mode)The bit is set by software, cleared by hardware when the NACK is sent, or when a STOPcondition or an Address matched is received, or when PE=0.0: an ACK is sent after current received byte.1: a NACK is sent after current received byte.This sounds to me like you're supposed to set NACK only when you just received a byte and e.g. got the RXNE IRQ.From reading descriptions about I2C protocol elsewhere, I got the idea that if a master sends a bad request, like accessing a non-existant register or writing to a readonly register, a slave may signal that with a NACK.Now I wonder where in the sequence of I2C bus activites (or, interrupts that I get) to place this NACK.After I got the following incomplete I2C transaction sequence: {

Hello, first of all, I hope im at the right section for my question. If not I'm sorry.I'm relativ new in working with Nucleo Boards and currently working on a Project where i want to generate a chirp signal/sinus sweep from -20kHz up to 20kHz.I made myself the following table in excel to have all the values. /* USER CODE BEGIN 0 */ uint32_t sweep_val[4096] = {4095, 2578, 277, 590, 3051, 4033, 2097, 88, 947, 3413, 3886, 1682, 9, 1293, 3668, 3699, 1347, 4, 1598, 3836, 3511, 1093, 38, 1845, 3939, 3347, 914, 84, 2025, 3996, 3226, 802, 123, 2135, 4023, 3158, 748, 142, 2175, 4030, 3147, 749, 137, 2146, 4019, 3195, 805, 108, 2047, 3985, 3298, 920, 64, 1878, 3919, 3448, 1102, 20, 1642, 3802, 3630, 1359, 0, 1345, 3615, 3821, 1697, 33, 1004, 3336, 3988, 2115, 155, 646, 2948, 4086, 2598, 403, 317, 2445, 4063, 3110, 805, 78, 1846, 3868, 3590, 1369, 1, 1201, 3459, 3952, 2069, 160, 595, 2829, 4095, 2832, 603, 151,

STM32 FLASH Programming || Write and Read || PAGE Memory Type for high density controllers of f103 series

Hello ST Community,I am currently attempting to establish communication between two STM32U585 boards using the Serial Peripheral Interface (SPI) protocol.Issue Encountered: Data is not being received.The transmission from one of the STM32U585 boards is functioning correctly, as confirmed by testing with a logic analyzer. However, the issue lies with the reception on the other STM32U585 board. We have tried both the polling method (which resulted in a timeout error) and the interrupt method (where no callback was received) for SPI communication.I would appreciate any guidance or suggestions to resolve this issue.Thanking you,Nirupama 

Hello, is it possible to ușe the LwIP Middleware over the low level library for an external PHY such as ENC28J60?If so, could you pinpoint me to a documentation or an article?Thanks.

Hello,In my project five high resolution timers should start on the SYNC signal. They go HIGH on the COMP1 value 32 until an External Event Signal comes and sets the output LOW. The counters reset and get triggered with the next SYNC Signal.The sixth timer (or the Master Timer) must start with the External Event Signal.It is essential that the timer starts with the EEV and not just be inverted on the output. It is necessary to later link the inactive state change of the first five timers to the compere registers of the sixth timer. In the end I can set five timers HIGH at once but set them LOW at different times and delays with respect to the EEV.Is it possible to configure this in MX / IDE?I'm using a NUCLEO-G474RE Board.

I have a project where I'm using a Nucloe G474RE to produce a sine wave, all is working great; I have an array of 2500 values which produce a SINE wave starting at 0 degrees; I would like to add 2 further Sine waves starting 120 and 240 degrees later. To do this, I could create 2 additional arrays with the values shifted to reflect the 120-degree and 240 degrees shift, but I was wondering whether I could use one array and produce the remaining 2 arrays by preloading the index the timer produces for phase 2 and 3 , indexing, reading and sending the value to the 2nd and 3rd DAC output.Is this achievableThanks for any guidanceNickI think I know how this could work, but I have to set the registers manually rather than using the HAL, The HAL seems to hide the details on how to set the source address, DMA1_Channel1->CPAR = (unint32_t(&dataArray[index_to_start_from); //DMA in cir