STM32 MCUs products

UART Interrupt based program without HAL

I have a weight cell connected to NUCLEO-F401RE over UART. I send specific frames and cell responds acording to these ones. I am able to send and receive fixed length frames successfully using HAL_UART_Transmit and HAL_UART_Receive.The problem is tha...

when my mcu go to the standby mode then if i want to trigger extern interrupt after wakeup it is going to isr how its poosible to go isr and why i want when i give the external trigger during standby mode then it will start from the intial not a isr

how to read and write to internal flash in STM32f303CB .

HI, i am doing project on fan controller , i need to measure power factor between my voltage waveform and current waveform which is generated on my CRO. i need to write code to display the powerfactor value. should i use input capture method .

or else do i need to set two GPIO pins as EXTI with rising edge interrupt.i am already generating two waveforms with some dealy . But should i use Input capture method to capture the values at rising edge at each pulse and need to count the number o...

STM32F746 Discovery QSPI Memory mapped mode issue

Hello, I want to use external QSPI flash memory micron n25q128 in Memory mapped mode  STM32F746 Discovery. I used below code to make external flash in memory mapped mode but I can see incorrect data at external flash. I am not sure whats wrong in m...

I have a NUCLEO-F030R8 card and I want to try to communicate with an SD card. Does ST.com have any libraries for this?

And, is there some tutorials somewhere for this kind of things?I am a newbie, and I don't know where to navigate for these kind of things...

Byte loss in DMA based SPI slave implementation

We are using STM32L475RE as SPI slave and TI based DSP as master. We are operating the SPI at 1Mhz clock frequency.We are seeing intermittent data loss in the transmission when data size is high. We observed that the HAL_SPI_TransmitReceive_DMA call ...

CAN doesn't works (STM32F767ZI)

Hi everyone,I use STM32F767ZI nucleo board and i'd like to use CAN to send data.To begin ijust want to see the data frame sent on Can_Tx on my oscilloscope.For this i just connect the Can_rx to the Can_tx of my nucleo board on PD0 and PD1 to see what...

using the TIMER2 ETR input in reset mode for stm32F446RE

Hi everybody,i would like to use the STM32F446 Timer2 with one external input to reset the counter (avlue to 0), then having an input capture to read the timer value between two consecutives reset thru ETR input. Input capture settings is not a probl...