STM32 MCUs Products

How to measure quadrature encoder frequency\speed constantly

I'm using F401 that is connected to an A\B encoder and the A\B are routed to TIM2 that is set to work in encoder mode and it is counting the encoder movement as expected.I want to use another timer that will work as TIM2 slave for measuring the encod...

Can two separate QSPI FLASH chips be used simultaneously without using dual memory mode

Hi,Being new to QSPI technique I have to ask for some help to find out if I have misunderstood the whole concept.Our target is to have two QSPI flash memories and run the code from the first one (xip) and use the second one for data storage to be use...

Sinusoidal Waveform Acquisition

I found an application note described about the sinusoidal wave acquisition using 10bits ADC and 2 DMA. My question is how they display the reconstructed waveform? by UART? or by DAC?Below link is the application note AN4173https://www.st.com/conten...

A question about STM32F767 USART Receiver timeout register

Dear all， I am using the usart2 of the STM32F767 to implement the Modbus function. I used the Receiver timeout interrupt to detect if a piece of data is over. However,sometimes a timeout interrupt had occurred. when data is still receive. I set the ...

STM32F407 stuck in RTC wakeup handler

platform:rtems there is my setup, the RTC get time works finevoid rtc_wakeup_setup() { rtc_write_enable(); // set wakeup clock // Disable the wake-up counter printk("wakeup block begin\n"); STM32F4_RTC_CR &= ~STM32F4_RTC_CR_W...

TIM2 timer ETR accuracy question on STM32F303RE Nucleo board

Hello,I've taken the code from the Timer cookbook example TIM_ExtCLK_ETR and modified it slightly for my purposes. I removed the DMA transfer and am looking directly at the TIM2->CNT variable at a 1 second interval for right now. In this case, I'm...

I am using STM32L4R9I-EVAL dev kits. STM32L4R9 supports octoSPI. I can't find any logic analyzer supports octo SPI. How do verify the data communication?

STM32H747 Dual Core (M7 + M4)

https://www.st.com/content/ccc/resource/sales_and_marketing/presentation/technology_presentation/group0/ca/b8/42/c4/e3/9f/40/2e/CES_2019_Amazon_Alexa_Home_Control/files/CES_2019_Amazon_Alexa_Home_Control.pdf/jcr:content/translations/en.CES_2019_Amazo...