STM32 MCUs Products

My goal is to send bit patterns from an array directly to GPIO, using a Timer as a sample clock / DMA trigger.More concretely: TIM2 Update Event --> DMA --> memory to GPIO Port ODR transferI am on STM32f103rb (Nucleo-64)Similar questions have been asked here, of which none helped me so far.https://community.st.com/s/question/0D53W000003yufESAQ/how-to-setup-dma-to-gpio-transfer-using-hal-in-the-cubeidemy-goal-is-to-transfer-the-contents-of-an-integer-array-8-bits-per-value-to-8-gpio-pins

Hi!A PWM signal with a frequency of 100 kHz comes to the input of the microcontroller. Then, when the pulse falls, an interruption is triggered, which should change the state of one of the output PINs. And now I am observing a situation where the signal has arrived, but the reaction to the change in state takes about 3 µs, which is quite a lot for a frequency of 100 kHz.There is nothing else in the code itself, only a response to interruptions, which takes about 3 µs from the moment of the interruption itself.

I have chosen the STM32F765ZIT7 for my project due to its suitable number of pins and bus interfaces. However, this microcontroller does not support Error Correction Code (ECC) for SRAM. Therefore, I kindly request your recommendation for the best replacement for the STM32F765ZIT7 that includes ECC for SRAM and offers a higher operating temperature range.Thank you!

Hey im trying to blynk led on stm 32 l562e dk board i had attached the consol logs its not connecting to debuger i want to ask you is their any default jumper settings for this board or is their any specific debug settings required for this board . i had also attached photos of my jumper setting. additonally i had also attached my code. its a brand new board i just orderd .

Hello,     I try to use two timer to generate fixed frequency ,fixed quantity PWM pulses ,the frequency is about 5Mhz, the quantity is 20,but only can get one pulse, can you help to check why? Below is my configuration: TIM4 is Mater,TIM3 is slave.static void MX_TIM3_Init(void){/* USER CODE BEGIN TIM3_Init 0 *//* USER CODE END TIM3_Init 0 */TIM_SlaveConfigTypeDef sSlaveConfig = {0};TIM_MasterConfigTypeDef sMasterConfig = {0};/* USER CODE BEGIN TIM3_Init 1 *//* USER CODE END TIM3_Init 1 */htim3.Instance = TIM3;htim3.Init.Prescaler = 0;htim3.Init.CounterMode = TIM_COUNTERMODE_UP;htim3.Init.Period = 2-1;htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;htim3.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;if (HAL_TIM_Base_Init(&htim3) != HAL_OK){

Posted on July 08, 2016 at 16:09I'm trying to get the SDIO system working with DMA. The system works in the configuration without DMA.Now I set the read and write operations in the ''sd_diskio.c'' to DMA, by adding _DMA to the starting commands BSP_SD_WriteBlocks_DMA and BSP_SD_ReadBlocks_DMA.Now all the interrupts for SDIO and DMA fire several times but the my system stops atHAL_SD_CheckReadOperation in line:  /* Wait until the Rx transfer is no longer active */  while((__HAL_SD_SDIO_GET_FLAG(hsd, SDIO_FLAG_RXACT)) && (timeout > 0U))  {    timeout--;    }from hsd->SdTransferErr I got SD_RX_OVERRUNany idea, what is wrong?Best regardsMarco #sdio-dma-error

I've drawn my own schematic that uses the STM32F107RBT6 and LAN8720A chip.And this is not an work on company, not related with my job. just hobby.I made this to study firmware development in order to make toys that utilize Ethernet.and I ordered sample boards to PCB factory.It's very sloppy because I didn't learn electronics from somewhere and just tried it on my own little by little.I'm even writing this post because I want to ask something, but I don't even know what to ask.I would like to get a full schematic review or advice. I know the schematic itself works, but I also know that it doesn't do everything. If engineer were to read this, it would probably look very sloppy, but I would still like to hear from them.This drawn using `Kicad 8`, available on my github repository. USB Co

Hello everyoneI make  SPI communication between Stm32f411 and module NRF24l01.I have written a function to transfer data from stm32 to Nrf24l01, and read data from Nrf24l01.Everyone help me to edit code because this is my first time using this protocol void nrf24_WriteReg (uint8_t Reg, uint8_t Data){uint8_t buf[2];buf[0] = Reg|1<<5;buf[1] = Data; // Pull the CS Pin LOW to select the deviceCS_Select(); HAL_

Rev 19 Page 16/59:I believe this should read "increase" instead. The purpose of Rext is to limit the current and thus lower power dissipation in the crystal. So, lowering Rext increases power dissipation. A separate issue is that this phrase is awkward at best. First of all, on many boards Rext=0. Since it certainly can't be any lower that that, it's a strange way of phrasing the issue to say that too low a value increases power dissipation. What the appnote is trying to say is that the value of Rext should be selected to meet two competing requirements: staying below Max Drive level (which may requir

Below is the analog waveform for the SPI clock at 12MHz. How to improve the strength of this signal and get p-p 3.3V SPI clock at 12MHz ?"GPIO SPEED" set to the "VERY HIGH" setting. Apart from this, is there any additional settings required ? 

I'm having an issue with initialising my watchdog, when I include the call to HAL_WWDG_INIT(&hwwdg2) in my code, it is causing any debug attempt to run into the hardfault handler due to some values in SystemClock_Config() being set to 0: __weak HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority){/* Configure the SysTick to have interrupt in 1ms time basis*/if (HAL_SYSTICK_Config(SystemCoreClock / (1000U / uwTickFreq)) > 0U){return HAL_ERROR;}... The SystemCoreClock and uwTickFreq values both get set to 0 when the execution reaches them. If I comment out my HAL_WWDG_INIT call, the execution will work without issue. The HAL_WWDG_INIT isn't even being ran before whatever is happening happens, if I put a breakpoint on both there and in the HAL_InitTick function, the HAL_InitTick function is reached first with the values altered. Here's my Watchdog initialisati

Hi there! Are there any plans to add a hardware math accelerator in addition to the cordic and fmac that supports FFT's and other matrix operations entirely in hardware and runs in parallel to the CPU and communicates via DMA? A good example of this is the NXP PowerQuad hardware: https://www.nxp.com/docs/en/application-note/AN12282.pdf. I am using STM32 MCU's for audio synthesis/synthesizers and whilst the cordic/fmac is useful, having 2 cordics and 2 fmacs would be a LOT more useful, and even better, having a dedicated FFT hardware or vector processor with math capabilities that is independent of the main processor would be super useful.  Are there any plans to add something like this to your MCU lineup? Thanks.

Hi, i have stm32f0c8t6 micro controller. i am using adc-dma with timer interrupt. ADC after working correctly for a while, buffer values doesn't change. what could be the problem?

I am using STM32CubeH7 from GitHub (the latest commit is here). In stm32h7xx_hal_nand.c, I found something starting at Line 582:   if (((hnand->Config.BlockSize) * (hnand->Config.BlockNbr)) <= 65535U) { *(__IO uint8_t *)((uint32_t)(deviceaddress | ADDR_AREA)) = 0x00U; __DSB(); *(__IO uint8_t *)((uint32_t)(deviceaddress | ADDR_AREA)) = 0x00U; __DSB(); *(__IO uint8_t *)((uint32_t)(deviceaddress | ADDR_AREA)) = ADDR_1ST_CYCLE(nandaddress); __DSB(); *(__IO uint8_t *)((uint32_t)(deviceaddress | ADDR_AREA)) = ADDR_2ND_CYCLE(nandaddress); __DSB(); } else /* ((hnand->Config.BlockSize)*(hnand->Config.BlockNbr)) > 65535 */ { *(__IO uint8_t *)((uint32_t)(deviceaddress | ADDR_AREA)) = 0x00U; __DSB(); *(__IO uint8_t *)((uint32_t)(deviceaddress

Hi all,I am working on Nucleo-G474RE board to get the ADC result in multimode-continuous conversion- -dual regular simultaneous (ADC1-two channels  (1,2) & ADC2-two channels (3,4)) with DMA transfer (peripheral to memory). Here I checked the buffer value with word (data width) setting done in DMA configuration. The code was generated from STM32cubeMx after required setting.Unfortunately only ADC1 value is getting changed every time and rest half word -ADC2 value is showing always fixed everytime. Could you please let me know why this thing is happening. You advices are welcome. Thank you.  

Hi I designed a replacement pcb for a keyboard of mine with an STM32F401(RCT6).I used the QMK framework to make a firmware which I can download via DFU perfectly fine (I also uploaded it and checked it against what I downloaded..). The PC detects the keyboard when running the firmware, but can't connect (USB errors -32 and -71). I tested the firmware on my Mode Envoy which uses the same exact chip and it work, so naive me rules out defective firmware.Here is the link to my kicad project: https://github.com/zegonix/custom-cycle7-pcbSo far I tested the supply voltage, the reset signal and the clock as well as the usb signals. The supply voltage and reset signals seem perfect to me, the clock is a stable 12 MHz with 900 mV amplitude (can't remember the offset, but seemed reasonable) and the usb signals have a little overshoot, but seem goo

I know there are hundreds of posts about this and I've been through most of them but still can't get things to work.The concept is simple: set up 2 Nucleo F446 boards, one as full duplex slave the other as full duplex slave.Master pseudo code:while 1   Zero buffers   Fill Transmit buffer with data  Pull CS pin lowuse Hal_TransmitReceive(..)Wait for a while  The Slave pseudo code is similar While 1    Zero buffers    Fill tansmit buffer   Wait for CS to go low  use HAL TansmitReceive(..) to get data Shorter Wait than Master I am using a logic analyzer to monitor the data plus selected breaks in the debugger to see what is received.The last test was with a clock frequency of 740 KHz. Summary: The MOSI line always has the right dat

Hello everyone! I have a STM32H750VBT6 controller with external W25Q128 QSPI memory.The bootloader starts from address 0x080000000, initializes the flash in memory mapping mode and starts the main program from 0x900000000.There was a need to update the data in the external memory. Since the update must be done via Ethernet, this amount of code will not fit in the 128k flash. Question: is it possible to put the code that directly clears the memory and writes, for example, in the address 0x080100000 and use it there.How to properly disable execution from SPI for the duration of work from the address 0x080100000, and then return to the same place from where the jump function was called.Or will this not work?

Hi I am using Stm32L0 series board to create a custom external loader. I am using cubeIDE (version: 1.16.0)I am using winboard W25Q64 chip. I wrote a driver for this chip and interfaced it to my mcu using standard SPI2. I can read /write data on this external flash without any issue.Next step is to create an external loader.I tried to create the external loader, initially I was getting "Error Parsing Fail" issue but then I added some padding bytes to my struct which resolved the problem.Now I can compile the external loader without any issue and I can use it to read data from address 0x0 using cubeProgrammer. I can read roughly 8192 bytes from starting address 0x0.However I cant write data into the memory using external loader. One thing to note that cubeProgrammer is not showing my memory size and my memory type is also appearing as unknown:

I want to create USB PD Sink Demo on STM32L562CET6, i referred the below demo.LINK Below:STM32L562 EDK USB PD Demo from STM32 is that possible recreate the same demo to the STM32L562CET6 or any changes need to be do because i didn't get any output voltage value, how to i measure the board voltage through code ? which function helps to that ?

How to convert Accuracy(ppm) to CALP&CALM values from Temperature-Accuracy graph from RTC Calibration by temperature ?

Hello Team, how can a simple core to core communication on the STM32H7 be implemented? We want to exchange 2kByte of data in bidirectional way between CM7 and CM4.Best regards,Jochen

Hi all,First post here...I'm fairly new to STM32, working on STM32CubeIDE and have running code on a very well designed and laid out PCB with above components being the main actors.. The project was setup with STM32CubeMX V6.4.0 using STM32Cube FW_F4 V1.26.2. I haven't upgrade it yet (as suggested) because I inherited the project.Build Id Info: STM32CubeIDE/* Version: 1.15.0 Build: 20695_20240315_1429 (UTC) OS: Windows 10, v.10.0, x86_64 / win32 Java vendor: Eclipse Adoptium Java runtime version: 17.0.8.1+1 Java version: 17.0.8.1 /*ADC hooked up to the CPU via SPI, and CPU running at 160MHz.Here's my problem:I'm trying to read 5 of the 7 ADC channels sequentially and working exactly according to the LTC1859IG datasheet. If I read 1 or 2 channels only I get very accurate good values back but the minute I add any combination of the other channels (1 or more) I get (typically but n

Hello,I was trying to do sound classification with a STEVAL-STWINBX1. As using a NN directly in a microcontroller is impossible due to ram constrains, I decided to do a basic mel spectrogram (no full mfcc, I skip the dct and log stuff in order to speed up the process). Even when reducing the sample rate to around 16kHz, this chip is waaay to slow, like needs 4+ seconds for every second of sound, which makes it impossible to use in real time tasks (it is slow in every step of the process).And that's without the classifier, preprocessing only.I was wondering what chip is capable of doing STFT fast enough to use in real time environments. Thanks in advance, Albert PD: I am not sure this is the appropiate subforum. I apologize in advance if that is not the case.

I manually placed the sw_codec folder inside the middleware as follows.Then I included the folder with library.