STM32 MCUs Products

Please assist on how to resolve this. because if I deploy in the field it is not possible to be hard resetting every time for data to start streaming.Thank you.

I have two STM32F407IGT6 chips, and I need help understanding the markings printed on their surfaces.Images attached:First chip: "STM32F407IGT6 AA295 VQ 6 TWN AA 342"Second chip: "STM32F407IGT6 VQ249473 AA297 TWN AA 318"I would like to know:What each line of the markings represents?How to verify the authenticity of these chips?If there are any important differences between these two chips based on

Hi,   We apply the single-end analog inputs to  STM32H753ADC 1, 2, 3 respectively. .1. ADC 1, 2, 3 have total 60 channels. But only 36 different analog signals are allowed to be connected since there are 16 channels shared by all ADC 1, 2, 3, plus 8 unavailable channels.     Question: What is the reason to have so many shared channels, which reduces the number of analog signals to be connected? 2. Question: Can ADC 1 and ADC 2 be operated independently without the master-slave relationship?3. We wish to run all selected channels on ADC 1, 2, 3 simultaneously (synchronized) under the same sampling configuration at the same sampling rate. Each ADC has own predefined channel sampling sequence.     Question: Can we use the same timer event to trig the conversions for the all select

Hi All,I am using a STM32F413VGT, with a PWM input signal into Timer1. I am actually using all the counters for the same purpose, and Counter 1-3 work as expected setting the input capture to "non-inverted/both-edge".The documentation for this micro - "rm0430-stm32f413423-advanced-armbased-32bit-mcus-stmicroelectronics.pdf" details that the second bit required for channel 4, CC4NP in the CCER register, for setting Capture/Compare channel 4 to "non-inverted/both-edge" is reserved.When looking at the standard peripheral library, and MXCube, both indicate that I can set that bit to use channel 4 of Timer 1 for "non-inverted/both-edge" input capture.Am I missing an errata? or is the documentation out of date? Is there any guarantee that all STM32F413vgt chips I buy will work the same if the documentation specifies that bit should "remain at reset value"? Thanks,

I am trying to program STM32 Blue pill board using Keil, and it gives the following error: "Connection refused due to device mismatch; Device connected to debug unit is different from device selected for project target STMicroelectronics STM32F103C8." I am using ST-Link debugger for programming as it does not have on-board ST-debugger. The issue is that it reads chip ID:0x2BA01477, which, I have read on other forums, is the ID read when your board uses clone instead of real STM32F103C8T6. Still, I want to program it using Keil. When I program the same setup using Arduino IDE, it is gets programmed in a perfectly fine way. Is there any other way to resolve this error in Keil using the same board or there is no other option left but to replace the board?

While testing the Blackpill Timers and Usarts I came across this problem. If I set for example 6 timer channels using two timers. (In my case Tim2 and Tim3 and Usart1. If I set all six channels to PWM generation, I find it difficult to dynamically reset or change the timer variables.Although the Usart1 is set to interrupt enabled, sending a string (then being converted to an integer)Eg: __HAL_TIM_SET_COMPARE(&htim3, TIM_CHANNEL_1, M1)  (in this case M1 is the converted variable that I send via serial. The behavior is erratic. Sometimes the timer accepts the the variable and sometimes nothing happens.Someone suggested DMA etc. But nothing works. Even though the Usart1 is set priority over the timers, the behavior is still erratic. Especially using Serial radio modules like the Loras etc which has baudrates of 9600.It is crucial to be able to dynamically change the timer variables, especially in UAV applications.Any answers or ass

So I have three switches (nothing special just momentary push button) wired into the board PC2, PC3 and PA4. All are using internal pullups. PC2 and PC3 are set for rising / falling trigger IRQs and PA4 is set for falling IRQ. They all have their own ISR function and use a single callback. I am monitoring EXT -> PR register (interrupt flag) and I notice that when I push one of the buttons it will sometimes set 1, 2 or even all 3 of the flags and I never touch the other buttons. Here is an example of me pushing PC2 and 2,3,4 all went off. Sometimes only the one I want goes off as I would expect but many times multiple flags get set. There is nothing else on top of the board. It is a Nucleo-F401RE. Any ideas as to what could be going on here as I am totally confused?

The SVD files package available for the H5 family (here) does not include any SVDs for the H523 and H533 sub-families. Can we get access to those files? 

In a system using FreeRTOS, there are currently two timers: TIM6 (the timer used by FreeRTOS) and TIM3 (a general-purpose timer). I am not experiencing any issues with these timers, and I can successfully run functions like interrupts. However, whenever I try to generate a PWM output using TIM7, I have not been able to achieve it. Here is the main code.     int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* MCU Configuration--------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the S

Hello. I am working on a project where I need to access an external Flash chip on a STM32H7A3ZIT6 chip. I am trying to use the FMC and I'm just having a hard time understanding it. My biggest lack of understanding is coming in how in the world do I program this thing. I'm reading in the reference manual that there is something called the "common" and "attribute" memory space. These spaces are further split to "address", "command', and "data" sections. This is my main area of confusion. In C, do I just read and write to the address section? If so, what do I write, my data or an address? If I write the address there, how does it tell what data I want written? Is it linked or something to an address in the data section? Also what is the command section?  

Hello, I would like to know what is the maximum display resolution that can be supported by the STM32U5G9 chip, I calculated based on the MIPI clock that I can drive a 1024x768 screen at 16 bit, but I am very unsure. Thanks for your help.

Hi I have created Ethernet custom board using STM32F407 + LAN8742A attached is my schematic design based on Nucleo board for STM32F429ZI.on my custom board MX_LWIP_Init is getting error in HAL_ETH_Init in following section.    /* Wait for software reset */ while (READ_BIT(heth->Instance->DMABMR, ETH_DMABMR_SR) > 0U) { if (((HAL_GetTick() - tickstart) > ETH_SWRESET_TIMEOUT)) { /* Set Error Code */ heth->ErrorCode = HAL_ETH_ERROR_TIMEOUT; /* Set State as Error */ heth->gState = HAL_ETH_STATE_ERROR; /* Return Error */ return HAL_ERROR; } }    For above issue I checked the clock freq at LAN8742A input is correct 25MHz.I also followed the issues mentioned in this post

GOAL:Currently I am trying to get to know the low power capabilities with the STM32H757I-Eval Board. Therefore I want to write a simple program. I want to use only the Cortex-M4 for this. The program running on m4 should state with an uart message (M4 Context PB14 and PB15) that the Stop Mode is entered. After that I want to exit the low power mode, without some interaction with m7, with PC13 which mode is set to GPIO_MODE_IT_FALLING with interrupt priority 2.I used an empty project for this and started from scratch configuration wise. After configuration of LED1 (Pk3), Button(PC13), uart1. I generated the code.Problem:When entering stop mode with PWR_STOPENTRY_WFI the program does not react to interrupts from button and probably stays in LPM. BUT if I stop with the debugger I get to some lines of the Reset_Handler in startup_stm32h757xx.s.I tried it as well with PWR_STOPEN

hello i am using stm32f429i-disc1 microcontroller board in this how to generate flash code (eeprom) Your other thread showed a major confusion between what is a "microcontroller", and what is a "board" - so edited for clarity.

Hi,I survey an MCU that IO can be operated in 1.08V to 3.6V.The STM32H563xx could reach my request.But the DS shows the only 10 IOs can be operated in 1.08V to 3.6V.Does STM32H563xx have any setting to extend low power IOs?Or other MCU part number can support more low power IOs(1.08V to 3.6V) ? 

I used Timer6 and Timer7 on STM32L433CCT6, used Timer6 for tone generation and Timer7 for tone toggle generation, the ISR is: void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef* htim) { if(htim == &htim6) { HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_0); //TIM6->CNT = toneFreq[0]; } else if(htim == &htim7) { if(flagOnOff == SET) { if(msTone >= toneOn[toneFreqIndex]) { flagOnOff = RESET; msTone = 0; GPIOA->MODER &= ~(GPIO_MODER_MODER0); // From output to input } else { msTone++; } } else // flagOnOff == RESET { if(msTone >= toneOff[toneFreqIndex]) { flagOnOff = SET; msTone = 0; GPIOA->MODER |= GPIO_MODER_MODER0_0; // From input to output } else { msTone++; } } } else {;} } the related variables are: extern int toneFreq[] =

Hello,Firstly I'd like to say I have googled for examples and worked independently by reading ST docs and looked at the suggested topics before posting. I did begin to hijack another thread but I'll start one instead.What a long and painful tradition printing with ST dev boards is!My latest attempt is to follow this SWV tutorial for another board.Apologies if it's something ridiculous, I'm new!Having just tested the code before posting tonight, even with non blink related code commented out it has stopped blinking but still some help please :Dhttps://www.youtube.com/watch?v=sPzQ5CniWtwHere is the code I am running.  #include "main.h" /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */

Hello, I'm using stm32f103c8t6 board and trying to get simple voltage divider readings. I'm also using multimeter to measure voltage and well I'm getting 0.2 sometimes 0.4 V error. Is this normal? I really need precision, 0.2 or 0,4 volts are really to much for me. I'm using regular conversion on 1 channel every 10 seconds with maximum 239.5 cycles sampling time. This is the code I use (yes I try to calibrate it and that doesn't work)HAL_ADCEx_Calibration_Start(&hadc1); HAL_Delay(10); HAL_ADC_Start(&hadc1); HAL_ADC_PollForConversion(&hadc1,100); ADC_VAL=HAL_ADC_GetValue(&hadc1); HAL_ADC_Stop(&hadc1); voltage=ADC_VAL*3.3/4096; #[STM32 MCUs]​ #ADC​ #STM32F1​ 

Hello everyone, I am using STM32F767ZI which in the reference manual has ITCM, DTCM, SRAM1 and SRAM2 but in the linker script it is just RAM so I am trying to change it from: MEMORY{ RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 512K FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 2048K} To this: MEMORY{ ITCMRAM (xrw) : ORIGIN = 0x00000000, LENGTH = 16K DTCMRAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K RAM (xrw) : ORIGIN = 0x20020000, LENGTH = 368K SRAM (xrw) : ORIGIN = 0x2007C000, LENGTH = 16K FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 2048K}So I added in the sections this: _sisram = LOADADDR(.sram);.sram :{ . = ALIGN(4); _ssram = .; /* create a global symbol at data start */ *(.sram) /* .data sections */ *(.sram*)

Hello,I am implementing my own I2C drivers based on the LL drivers provided by stm32g031xxxx (STM is the only master) Transmission and Reception all work very well but I am trying to get away with some optimization by starting a I2C read from a slave at one point and actually reading the byte later when an event happens, this is allowed as long as the CLK line is stretched indefinitely in between messages, which I am sure I do. (I2C timeout is disabled)I should mention I am aware that the I2C peripheral will immediately read a byte when a start condition is triggered, so what I have is a dummy byte being sent through I2C while the second byte to be transferred is the one of interest to me. This second byte will not be sent through I2C until I read the RXDR register, resetting RNXE and making the peripheral clock out the byte of interest without any time wasted sending a start condition or clocking out the dummy byte through I2C.This works normally, I send a star

Hello,I am programming STM32G491, while I need to use nRST as GPIO (MCO). I am using a code that you can see below. The problem is that when I am debugging a program, the debugger is disconected after HAL_FLASH_OB_Launch(); (this should reset MCU, am I right?). What can I do with that? I do not have a UART on my board, so SWV is my only option here...Thank you for response.   SystemClock_Config(); /* USER CODE BEGIN SysInit */HAL_Delay(5000);HAL_FLASH_Unlock();HAL_FLASH_OB_Unlock();OBInit.OptionType = OPTIONBYTE_USER;OBInit.USERType

I have the following function to write data to the FM24CL64 memory: void FM24CLXX_WriteData(uint16_t memAddr, uint8_t *data, uint16_t size) { uint8_t memAddrData[2] = { (uint8_t)(memAddr >> 8), (uint8_t)(memAddr & 0xFF) }; HAL_StatusTypeDef status = HAL_I2C_Mem_Write(&hi2c1, FM24CLXX_I2C_ADDR, memAddrData[0], I2C_MEMADD_SIZE_8BIT, data, size, 100); if (status != HAL_OK) { Error_Handler(); } }  Symptoms:The write operation fails, but the HAL_StatusTypeDef status returns a code that doesn't indicate exactly where the issue is.I have verified that the I2C address FM24CLXX_I2C_ADDR = 0xA0 is correct.The Error_Handler() function is being triggered, but I don't know exactly why.Possible Causes:There could be an issue with how the I2C command is sent.

Hi,at the moment on the STM32U5G9 we have the SWD pins (SWDIO and SWCLK) set to DEBUG, but we would like to also use them as GPIO after programming. How do we switch them to GPIO at runtime? Thank you 

Hi ,I am not sure but my development board STM32H750B-DK may have some issues and I need some help to find what it may be .  As per the readme.txt (there is very less literature that I could find on this board) , I could dump the ext_mem boot bin into the Internal flash and I did not face any issue there. I am now trying to flash the IO toggle image onto the QSPI flash present on the development board and I always face the same error. I feel that there maybe a hardware issue on the board but I could be wrong. Your help is highly appreciated. I have attached the error image.  

Hello.I tried to use an imu that was previously working using the spi2 port of the stm32f4 series with the spi4 port of the stm32h7 series, but I cannot communicate with it. (imu is using icm42688p.)Is it possible that I have made a mistake in my settings or something? ↓Configuration in the stm32f4 series. ↓Configuration in the stm32h7 series.