STM32 MCUs Products

please give suggestion to measure AC(vrms) at GPIO pin and DC current at another GPIOpin using ADC multi channel simultaneously in STM32 microcontroller please i need detail explanation about this

I am using STM32F401RB MCU

Where is the source for the factory-installed demo application for NUCLEO-F446ZE ?

I have a NUCLEO-144 board and it has a factory-installed application that flashes the LEDs and uses push button 1 to change which LED is flashing.This is described in section 5.1 "Getting started" in UM1974 for the NUCLEO-144 boards.I have found some...

USART4 does not work receiving data. It works only on USAR2. Sending data works on both. 1) polling on USART4: always timeout 2) Interrupt on USART4 --> Interrupt not thrown

/* Private variables ---------------------------------------------------------*/ UART_HandleTypeDef huart2; UART_HandleTypeDef huart4; ... //#define UART_MODE 1 #define UART_MODE 2 ... #define USARTX USART4 #define huartX huart4 uint8_t UART_rxBuff...

Measuring external Pulse Width and Height/Voltage

Hi all,Im wanting to measure both the width and height of input pulses using ADC and Timers.To get the width I can use a Timer with Input Capture and __HAL_TIM_GetCounterBut to get the height I'm unsure the best way. Currently I'm using the Input Cap...

Encoder Interface: independently on the encoder direction the counting has to be always incremental

The need I have is to count the encoder pulses on each front of the two channels (x4) always incrementing the counter independantly on the encoder direction and only have a tag on the direction changes.I configured the TIM2 as encoder input (as shown...

STM32L4 Timer OCxREF reset, Toogle and Gated Mode questions

Hi, On a STM32L476 MCU, I use many timers with various synchronization / outputs combination. I've two problems still remaining :On TIM3, the Channel 4 Output compare mode TOOGLE do not seems to work correctly (the GPIO do not toogle, it simply goes ...

Why CAN Bus (J1939) of STM32F405RGT is not working at vehicle's J1939 speed(250kbps) ?

i am making a J1939 data logger with STM32F405RGT. The vehicle's J1939 is transmitting data on 250kbps, but when i set250kbps in mcu it doesnot show any data on uart terminal , but when i set 500kbps in mcu then it shows some data on UART terminal. I...

ADC does not work. There is no data in the receive buffer.

Hello.I want to run the ADC to transfer data through the DMA to the RAM buffer.What did you do:void initADC(void) { DMAMUX1_Channel0->CCR = (9 << DMAMUX_CxCR_DMAREQ_ID_Pos); DMA1_Stream0->CR &= ~DMA_SxCR_EN; while(DMA1_Stream0->CR & DMA_SxCR_E...

Teams connection issues (error AADSTS50020)

Hello,it seems that some attendees have issues with logging to the Teams meeting and they receive following error message:AADSTS50020: User account '<user_email>' from identity provider 'live.com' does not exist in tenant '<STMicroelectronics or othe...

Resolved! How can we determine the flash memory size of STM32L4 processors?

We have PCB assemblies built that contain STM324L7 with 1M and 2M flash memory. How can we determine the flash memory size using a JTAG connection (e.g. by reading a register value)?

STM32 MCUs Products

Forum Posts

please give suggestion to measure AC(vrms) at GPIO pin and DC current at another GPIOpin using ADC multi channel simultaneously in STM32 microcontroller please i need detail explanation about this

Where is the source for the factory-installed demo application for NUCLEO-F446ZE ?

USART4 does not work receiving data. It works only on USAR2. Sending data works on both. 1) polling on USART4: always timeout 2) Interrupt on USART4 --> Interrupt not thrown

Measuring external Pulse Width and Height/Voltage

Encoder Interface: independently on the encoder direction the counting has to be always incremental

STM32L4 Timer OCxREF reset, Toogle and Gated Mode questions

Why CAN Bus (J1939) of STM32F405RGT is not working at vehicle's J1939 speed(250kbps) ?

ADC does not work. There is no data in the receive buffer.

Teams connection issues (error AADSTS50020)

Resolved! How can we determine the flash memory size of STM32L4 processors?

Internal RAM is too full

STM32H753 Boot From External eMMC Memory?

Debugging using UART on STM32H753

Precise SPI Timing with Timer and DMA on H7

Debug Mode & Voltage Scaling

Our first STM32 with Neural Processing Unit is ava...