STM32 MCUs Products

Hi. I am using stm32f429 board I am trying to read an analog signal from adc with timer. The sampling time should be 2us. But no matter how much I try, I could not do it. Please at least give me an idea about how to do it.

My first goal is to reach the sampling time of 2us. I am using timer2 as interrupt to read an analog signal from AN0 and to measure the adc sampling time, I am toggling a led every time I read a value in the callback interrupt and checking the toggle...

Why chaining TIM5 to TIM3 fail ?

I'm using a STM32L486RG and i try to chain TIM5 to TIM3 and it fail (TIM3->CNT doesn't increment). The other chaining combinations work correctly. Here is my test code:#include <assert.h> #include <stdbool.h>   #include "stm32l4xx.h"   #define TIM_MA...

SD(FATFS) cannot work with STemwin

Posted on April 29, 2017 at 07:40Hi , all:I use STM32CubeMx to generate MDK V5 project for my stm32f746g-discovery board.I found I can't use the SD  with FATFS after add STemwin Lib to my project , but it works fine only if  i just use SD and  LTDC ...

How to resolve SIGTRAP:Trace/breakpoint trap

What to do to use LSE?

STM32F746GDiscovery, CubeMX. Selecting RCC-> LSE causes the Clock Configuration error. I want to use this clock.

TRC source missing in Timer diagrams of many STM32 reference manuals

Hello,for most reference manuals, e.g. RM0390 Rev 4 for the STM32F446 the timer block diagrams (e.g.Fig 110 for RM0390) miss the source for the TRC signal. Reference manuals for recent devices (rm0433, rm0438) mark the source. Future revisions of STM...

How ADC integral linearity error is calculated?

From STM32F373xx datasheet, SAR ADC characteristics, page 99/137, for Vdda = 3V, i can see thatED - Differential linearity error is max +/-1 LSBEL - Integral linearity error is max +/-1.5 LSBBut in SDADC characteristics, page 111/137, the difference ...

Timers out of sync 32F746GDISCOVERY ?

Hello,i found a strange behavior having 2 timers running.My initial intention was having 4 input captures on the 32F746GDISCOVERY spread over two timers (no timer with 4 pins connected to the Arduino Header) one running as master and triggering the s...

STM32F746G-DISCO Discovery Board Touchscreen Issue

We have been experiencing reliability issues with the touchscreens on the STM32F746G-DISCO Discovery board; on some boards the touchscreens stop responding. This is not software related as the problem occurs with our custom application, the ST demo a...