STM32 MCUs Products

Capture input PWM analog signal using Timers.

I have a specific requirement to capture input PWM analog signal using Timers.The timer should capture both period and duty cycle of the input signal for one pulse, then stop the capture automatically.The application can read the capture compare regi...

Backup SRAM duration

Hi STM,I am having short question about BACKUP SRAM on STM32F437 MCU. So, for how long will BACKUP SRAM keep data, if power supply is removed. Will the data stay there, after some long period or will they be wiped out?If they are going to be wiped ou...

CAN1_RX0 interrupt not firing

I've been working on getting the STM32f7-EVAL operational to later on migrate it to STM32F767II. For this we decided to split up functionality into 3 sections, there is a forward facing application that has the main and specific business logic.Curren...

Hello, I am using an ADS131E08 with stm32F7, is there any library (code c) that i can use to receive data from the adc ? Thanks in advance

Alternate Function 0 in STM32

In my STM32, if I have set the GPIO_MODER as "Alternate function" and did not set any values in the GPIO_AFRL and GPIO_AFHL, I guess it will take the defaukt value of AF0. What is AF0 used for ?

Unable to calculate the correct smooth calibration value for the RTC on an STM32F411. Can you spot my error?

Hello,  I am having trouble calculating the correct calibration value for my RTC 32K osc. My setup is as follows. STM32F411. 32768 LSE osc. I am passing a 1HZ signal out of the micro and I am measuring it with a 5Mhz precision oscillator and counter,...

What file defines ITM_RxBuffer?

I'm building my application which includes the CMSIS core_cm4.h file and get an `undefined reference to `ITM_RxBuffer'` message. What file actually defines this variable?

STM32F103REY6TR We bought this part at different times，Now，Different appearance phenomena are found on the surface of the chip，One has a specular sheen and one has a matte black，I wonder if both are normal phenomena？At the same time, attach a picture of t

If so, what are the reasons for the difference，If not, which phenomenon is normal? Please see picture， Thank you very much

Difference between Run mode currents in the datasheet

what is the difference between these below currents– 84 μA/MHz run mode vs Run mode current of 9.45mA in the below table I always confused which current i have to consider while doing power calculations.like uA/MHZ when to consider and with out indic...