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Resolved! A question about Vdd, VddA, Vref and clock frequencies

Hello,we want to build a system with STM32H7, hopefully one of the new up to 480 MHz devices. And we really need a high clock of 400 MHz and above. On the other hand we need low power and we use ADC and DAC, both requiring a 3.3V Vref.Now my question...

ADC accuracy problem

I am sensing the voltage using stm32f103c8 module.using Keil micro--vision 5register level codingcode:#include "stm32f10x.h"       float av,volt; int main(void) { // SEND A CLOCK SOURCE FOR ADC //LcdSend2StringWithDelay(50000,"Start Clock",""); ...

Bud by Associate III
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  • 8 replies
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Unknown pulsing on STM32L073RZ

Hi there,I'm working with an STM32L073RZ CPU and Mbed OS 5.12.0 and experiencing an issue that I'm not quite sure how to describe. The processor gets into a state whereby it oscillates a pin (PA_5 which is setup as an InterruptIn that pulls down) and...

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Problem with STM32F4.7 External Interrupt

Dear All,i configured an input pin as external interrupt with rising edge detection and pulled it down internally.i apply a pulse train which it sets and resets within the time that the interrupt is disabled.i expect that the ISR executes when it is ...

RShar.17 by Associate II
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  • 2 replies
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STM32F103 - PB3 just doesn't work as GPIO

Posted on December 14, 2016 at 10:27Hello,did anyone ever manage to get PB3 working as an I/O port on an STM32F103?I am having a hard time with the F103VB where I need PB3 as input - no matter what I try, PB3 simply is returning a 0 value.AFIO->MAPR...

tilmann by Associate III
  • 9597 Views
  • 32 replies
  • 1 kudos