STM32 MCUs Products

Hi all,I'm using application note AN4636 for LC sensor.I tested with the example source code, and they work well for one sensor.But when I use multiple sensors, I face an issue. If I use the same value for inductor and capacitor for each sensor, the oscillators between these sensors are affected, the amplitude decrease and the shape change.I can avoid this issue by adjusting the value of inductors to create difference oscillator frequencies, but I think it is not good solution to ensure the stable and consistency of product.Can anyone give me advice to solve this problem?I appreciate this help. Thanks!  

I am working on STM32F407ZET6 with DMA+SPI in slave mode. Trying to reset DMA Counter when NSS is high to avoid shifted data transmit.TX and RX DMA are working on Circular mode.This is my tx data typedef struct { uint8_t InputState[4]; uint8_t reserved1[4]; uint8_t reserved2[4]; uint8_t reserved3[4]; } SyncDataTX;  Inside init function, i did *((uint32_t*)(txData.InputState)) = 0x11121314; *((uint32_t*)(txData.reserved1)) = 0x15161718; *((uint32_t*)(txData.reserved2)) = 0x19202122; *((uint32_t*)(txData.reserved3)) = 0x23242526; HAL_SPI_TransmitReceive_DMA(&hspi1, (uint8_t *)&txData, (uint8_t *)&rxData, sizeof(txData)); Inside interrupt function, i did __HAL_DMA_DISABLE(&hdma_spi1_rx); __HAL_DMA_DISABLE(&amp

i am sorry for creating a lot of post recently but i just can not program my microcontrollers. when ever i try to program it i get this:STMicroelectronics ST-LINK GDB server. Version 7.5.0Copyright (c) 2023, STMicroelectronics. All rights reserved. Starting server with the following options:Persistent Mode : DisabledLogging Level : 1Listen Port Number : 61234Status Refresh Delay : 15sVerbose Mode : DisabledSWD Debug : EnabledInitWhile : Enabled Target no device found Error in initializing ST-LINK device.Reason: No device found on target. i have a stlink v3 mini and 3 stm32c031g4u6 microcontrollers soldered to proper breakout boards.i

Hi,Is it possible to have a single ADC result transferred to two different memory locations using DMA without CPU intervention?Specifically I want DMA to take a single reading from an ADC, transfer it to one location on the STM32H747 CM4 and another location on the STM32H747 CM7. Thanks!

Hello,I'm trying to program G491KCU6 board via UART1 and I'm not able to connect to st-programmer. I don't know whether the board is actually entering Boot0 or not. I have PB8 with 10K to GND and I pull it up during connection to enter Boot0. Below is the schematic. Any recommendations? My serial to USB converter shows Rx LED ON when I try to enter Boot0. 

Hi,I'm trying to send data from ADC to FMAC directly via DMA in circular mode. From the STM32G4 reference manual (dm00355726) page 402:"Peripheral-to-memory, memory-to-peripheral, memory-to-memory and peripheral-to-peripheral data transfers"But I can't find anything on STM32CubeG4 that configures that. Here's a screenshot: I've tried writing to FMAC write data register directly usingHAL_ADC_Start_DMA(&hadc1, &FMAC->WDATA, 1)But it doesn't work.What worked for me was setting the DMA circular mode for both ADC and FMAC, then syncronize it using DMAMUX requests

Hi all!I am struggling to couple STM32F469ZGT6 (running at 180 MHz) with SDRAM type IS42S16160J-6TL from ISSI (datasheet here: https://www.issi.com/WW/pdf/42-45S83200J-16160J.pdf ).SDRAM is organized in 4 banks, each having 8192 rows x 512 columns x 16 bits wide data bus, and is connected to MCU like this: FMC is configured in CubeMX like this:

Does the STM32 series have a document similar to AN4035 regarding flash programming through JTAG？

I'm currently working on a project using the STM32L433 MCU with the SD peripheral. While trying to use the HAL driver with read and write operations the functions return an timeout. While tracing the command and data lines the command is sent but the FIFO is not emptied this leads to the timeout as the SD card isn't done writing. Also while only reading the data only the command is sent and no data is exchanged.In the initialization of the SD card data is exchanged so the functionality of the SD card is working. Also multiple cards are used to test and all have the same response as it doesn't send the data. In the screenshot is CMD24 sent and a response from the card with the status in transfer state and ready for data flag is 1. Card data as the CID and CSD are received properly.

Dear STMicroelectronics Support Team, I hope this message finds you well. I am interested in identifying a microcontroller that meets certain specifications for my project. I would appreciate your assistance in identifying the most suitable MCU. MCU Requirements: Low-pin package type: SO (Small Outline), SOIC (Small Outline Integrated Circuit), or TSSOP (Thin Shrink Small Outline Package). Should be I2C (Inter-Integrated Circuit) compatible. Must have a built-in Real-Time Clock (RTC) module. Should include a VBAT pin for battery backup. If you could provide information about any MCU that meets these requirements or suggest where I can find such information on your website, I would be very grateful. Thank you very much for your time and assistance. Sincerely,

Hey,I'm completely new to the topic of microcontrollers and currently trying to prepare for an internship (preparation and prior knowledge are not required, but I would still like to prepare myself). Since I already the chip (STM32L4A6) I'm going to work with, I bought a board (NUCLEO-L4A6ZG) with this chip. Despite finding a diverse set of resources and examples for other boards (I also checked the GitHub repos for examples, but the board wasn't available), but the only thing I could achieve was programming the LEDs and playing around with the buttons. The configuration of printf has so far been a complete failure (I tried using UART).I've tried using the datasheet and the user manual for help, but that hasn't really helped me so far as I felt completely overwhelmed and lost.I'm sorry if this is not the right place

I'm using the USART on my STM32G474 in FIFO mode with LL-libraries. The datasheet says:" However the RXFIFO default width is 12 bits. This is due to the fact that the receiver does not only store the data in the FIFO, but also the error flags associated to each character (Parity error, Noise error and Framing error flags)."I want to read these error flags, but it is not clear if I have to read the flag register first and then the data register or the other way round.

Hello, all.I'm trying to design and build my first STM32 project, a timer. I'm using the STM32L101K4 and have it configured as illustrated in the attached screenshot. The pins are configured in STM32CubeIDE as:External LSE on 2 & 3LCD connections on 7-13, 25-27. Pins 8 and 25 are PWM pins to control the LCD's backlight and contrast.A rotary encoder and push-button switch on 19-21.Some LEDs on 22, 28 & 29.SWD on 23 & 24.And, an unassigned GPIO pin on 30.I also have configured:System Core->RCC->LSESystem Core->SYS->Debug Serial WireTimers->TIM2->Channel 1 PWM Generation and Channel 3 PWMAll of these are configured without conflict, I think.I'm puzzled now that I can't assign a role like GPIO_Output to unused pins, such as 6, 14, 15, 18 or 31. Assigning a role such as GPIO_Output (I didn't try other roles) generates a conflict in the configuration, with yellow triang

Good Evening Ladies and Gentlemen, A short introducing purpose of mine: int main(void) { RCC->AHB1ENR |= 0xFC; // ---> Here I would like to open the Port clock RCC->APB1ENR |= 0xFC; // ---> Here I would like to open the USART2 clock - in this context not relevant GPIOA->MODER |= 0x55555555; // ---> Here I define Port A as output GPIOC->MODER |= 0x55555555; // ---> Here I define Port C as output GPIOA->ODR |= (1<<2); // ---> Here I would like to set PA2 "high" GPIOC->ODR |= (1<<13); // ---> Here I would like to set the onboard LED (PC13) "high" while(1) { GPIOA->ODR |= (1<<0); // Here I would like to "toggle" PA0 and PA6 GPIOA->ODR |= (1<<6); delayMs(50); // It only is a not relevant "delay" for this purpose GPIOA->ODR &= ~(1<<0); GPIOA->ODR &= ~(1<<6); delayMs(50); } }  

I have a laptop with Wifi. I directly connect a straight-through ethernet cable between my laptop and my custom STM32 board. Using IPV4.   STM32 board with LWIP, set as server, IP 192.168.3.1, Gateway 192.168.3.0, Subnet mask 255.255.255.0, port 39 Laptop is client, set to IP 192.168.3.2, Gateway 192.168.3.0, Subnet Mask 255.255.255.0 in Control Panel->Network and Internet ->Network Connections, Ethernet Icon, Properties, Internet Protocol Version 4 (TCP/IPv4) My STM32 board starts first, no issue with LWIP initialization. Then I start Hercules application (from HW-group.com), it shows on “your PC network settings” the wifi IP, gateway and netmask. This is the problem. When I ping from laptop on Hercules, it works fine. When I try to connect from my laptop to STM32, it fails. Ethernet icon in Network connections has a red cross.   I had all this working before: I took my laptop home, came ba

Hello Community,I'm using GT911 with STM32F746 over I2C. I have noticed some time it stucks when multi touch is used (very few times in single touch as well). Upon debugging I noticed a change of voltage level of Interrupt pin.In working state, INT pin stays High ideally but after the touch freezes, it stays Low with spikes.Please find the attached screenshot of waveforms.INT pin when GT911 stucksINT pin when GT911 works fine

Hello,I am currently using a custom-built board designed to the nRF24L01+ specification and using the same exact circuit provided in their datasheet. It is connected to my STM32F103 through SPI. I am currently using this library to test out this board: https://github.com/elmot/nrf24l01-lib/tree/masterThe board is able to successfully verify that it is connected to the NRF chip using the nRF24_Check() function. Furthermore, the nRF is returning back that a packet (without AA) has been sent successfully and subsequently clears the TX FIFO. On my receiver device, the RX FIFO does not get populated nor any interrupts triggered by the nRF which leads me to the assumption that there is a problem somewhere with the wireless transmission of the packet. If I were to enable AA, and also put my receiver device on the ESB RX example, then the nRF would

Hello,STM32L476 data sheet Rev 8 talks in 3.15 about "Down to 18.75 ns sampling time" while table 77 only lists a minimal 31.25 ns minimal sampling time. Is 18.75 ns sampling time possible and with what setting?

HelloI am working in dual bank mode with STM32G474RET6 MCU. I want to store some default values in internal flash beyond last programmed firmware's data address.For example I have following contents in flash (shown from STM32CubeProgrammer):Data starting at address 0x0804B040 (default values I stored) read as 0xFF. While data before this address as 0x41, 0x53 and etc.. is read correctly.I tried to store defaults values even at the last blank page starting from address 0x0807F800, but also the same phenomenon - even I verify that it stored correctly - it is read as 0xFF.

Hello everyone,   for a project I try to build a small CAN Bus with several Nucleo 144F207 Boards. Sadly, I have a really hard time to get it to work even though it should be rather simple. The minimum setup consists of two boards and two CAN Tranciever PCB's: https://www.amazon.de/AZDelivery-CAN-Bus-Transceiver-Breakout-Board-Hochgeschwindigkeits-Physische-kompatibel-Standard/dp/B0CBKLH6SS/ref=sr_1_3?keywords=can%2Btransceiver&qid=1701683744&sr=8-3&th=1 Code is configured/generated via the CubeIDE. The Main Funktion looks like this: Spoiler (Hig

I am a begginer in the st enviroment, but still. I'm trying to use the touch sensing library, but there is very little good examples of how to just use one button as a sensor. I real all the documentation, still no good examples. I downloaded the libraryen.stm32cubel0_v1-12-0\STM32Cube_FW_L0_V1.12.0\Middlewares\ST\STM32_TouchSensing_Library, but the documentation is still refering about using tsl_user.c, which there isn't one in the folder... Can someone link an example or something that helps. Im using nucleo-l053r8

Why STM32G431 CAN get into bus off status? I cannot find the reason in the reference manual.

Hello,I'm new in ARM programming, I'm trying to study how CHIP work using the documentation.I wanna unlock the flash memory and according with documentation:1. Write KEY1 = 0x4567 0123 in the FLASH key register (FLASH_KEYR)2. Write KEY2 = 0xCDEF 89AB in the FLASH key register (FLASH_KEYR).Any wrong sequence locks the FLASH_CR registers until the next system reset. In the caseof a wrong key sequence, a bus error is detected and a Hard Fault interrupt is generated. I write this simple code:void unlock_flash(){   FLASH_TypeDef *flash;   flash->KEYR = 0x45670123;   flash->KEYR = 0xCDEF89AB;}But after registre write I have an HARDFAULT...Please could you help me?Thanks a lot!

Hi, I'm using the STM32G030 MCU and I want to perform programming using the CLI commands. When using the STM32 ST-LINK utility and opening the option bytes window, I can see the PCROP bit which if I set, the MCU performs a mass erase when RDP bit changes from 1 to zero, which is the expected behaviour. The issue is that this bit is not found in the datasheet. Also, when I use STM32CubeProgrammer, the PCROP bit is not shown as part of the option bytes ( I only see RDP setting). Moreover, when using the STM32CubeProgrammer CLI command to clear RDP bit, the subsequent mass erase command does not work. At this stage, a strange thing is seen. If I try to clear RDP bit using the STM32CubeProgrammer CLI command, a warning is returned that RDP is already set to zero so no action is taken. BUT, if than I connect to the MCU using the STM32 ST-LINK utility and open the option bytes window, the RDP bit is still read as level 1 !?!?!?Can an

Hello!What is the difference between JTRST and NRST of stm32 mcu?When using SWD, where should the RESET pin be connected? NRST or JTRST?