STM32 MCUs Products

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...

I cant write to the FLASH OPTION register

Hi allI need to write an external programmer for STM32G030J6.I've written the SWD protocol, and I'm able to program all FLASH (if no protection applied).the issue is: I can’t write to the FLASH OPTION: (changing protection level from 1 to 0) I can’t ...

Support for Unicleo-GUI-STM32MCU

Dear TeamGone through the user manual,refer the below linkhttps://www.st.com/content/ccc/resource/technical/document/user_manual/group0/b9/d0/7c/c5/a8/55/4c/bc/DM00337036/files/DM00337036.pdf/jcr:content/translations/en.DM00337036.pdfAlso find the b...

Hello, I need to count the rising edge of two waveforms individually by setting flag and use Timer as my interrupt with 100KHZ frequency. Each time my counter needs to increment . when my flag become equal to zero i need to reset my counter.

can anyone help me how to code please . Actually this my first project.thank you

STM32F103VCT6 i2c2 setting trouble...

HiI am trying to communicate using i2c1, i2c2 of STM32F103VCT6.The pins are set as shown below.​- i2c1: PB6 (SCL), PB7 (SDA)- i2c2: PB10 (SCL), PB11 (SDA)​i2c1 is communicating correctly, i2c2 is not communicating with i2c1.When sending data, the bus...

Collision Detection on RS485 on STM32F103CB

Hi​I'm doing a topic to detect the collision on RS485. Since I wish to stop transmitting when collision occurred, I need to know how's the bus look like, however while transmitting, the transmit enable pin pull high on SP485EEN, lead the receiving p...

Hi Team I am using STM32F401RE I wanted to print the message using the printf on the console But I am not able to see any prints Can you please let me know what is the settings that I have to change to enable printf on the console Kindly please help