STM32 MCUs Products

Is this the primary community support forum for the ST32F4? There is not much activity....there must be another resource

why i get the VDDA value from VREFINT is wrong ?

I use MCU STM32L073, set VDDA=VREF+=3.29V, VSSA=VREF-=GND=0V.I read Vrefint_cal for (0x1FF80078), get the value of Vrefint_cal = 0x680get Vrefint_data from ADC_CHANNEL_17, get this value is Vrefint_data =0xbb7 the code is here:///////////////////////...

How do I get the IP address using dns_gethostbyname()?

cpu : stm32f4 I want to get the IP address using dns_gethostbyname. However, I can not get the IP addressHow do I get the IP address ? ( I set the DNS service using stm32cubeMX.) ==================================void main(void){   int test=dns_getho...

How to unlock the write protection for the Real time clock in stm32f407

Hi,I'm currently trying out the configuration of RTC in the STM32F407G-DISC1 using Atollic truestudio.I was successful in enabling RTC registers write access by setting the DBP bit in PWR_CR registers after system reset, but I'm unable to write the k...

STM32L432KC - Bootloading from RFID I2C Memory?

Hi all,I develop rough environment IoT sensors that are completely potted in polymer epoxies. I use a STM32L432KC MCU inside to drive different sensors and RF radios. My sensors also integrate I2C RFID memories and magnetic switches in order to inter...

How to transmit the messages and receive from one STM32F407 to another STM32F407

can anybody help how to program it because i have done it but i don't where I am wrong

How to check the mail boxes of Transmission and Reception in program in Hal CAN drivers?

how to check whether we are using CAN 2.0A or CAN 2.0B in program on stm32f407ve?