STM32 MCUs Products

STM32F417 RTC_BKPXR Reset during power up

The RTC_BKPXR register is for recording power off status in our board, we make 10 boards, 4 boards works and 6 boards keep reset the RTC_BKPXR during power recycle, I check the Vbat, it is 2.91 Volt after power off which is correct.I use TureStudio t...

How to use internal rtc of stm32fo microcontrollers with out delay in time.

I have been using internal rtc of stm 32 microcontroller for which i have connected external 32.768khz crystal with out load capacitors i have recording the values since three days and i have observed inaccurate time which is 43 sec faster, i was con...

Where can I download the Flash Loader sources from the STM32F7xx_QSPI.FLM (Keil uVision) to change the GPIO Pins? We want to integrate the Micron MT25QL512 Flash from the STM32F7x6_Eval Board into our circuit.

STM32 UART Baremetal

Hey guys, I've been playing around with STM32F334R8 Nucleo board's USART module. As a part of it, I have written a small bare-metal code to print a character and unfortunately, my code isn't working. I am seeing junk on my putty window sometimes and ...

STM32H745-DISCO odd SDRAM problem

Hi all,my SDRAM setup seems to work EXCEPT that I have a strange behavior:When I write any value (8, 16, 32 bit) to an address (example 0xd000004),it in fact gets written to the address - 2, in this example 0xd0000002.All written bytes are readably @...

ADC multichannel question

Hi, I want to set 3 channels of adc and transfer data via dma to buffer.​But I want to read rando​mly, sometimes only ch1, sometimes only ch3 etc. One channel at time. And fill buffer with data from one channel.​​Do I have to set:-adc continous - dis...

ADC DMA RESTART problem in stm32h7

Hello i am working on stm32h743 , and in it ADC DMA stop working but when i try to start again i does't.what is the problem in it?