STM32 MCUs Products

What is the chain of functions from USART(6)RX interrupt to final ISR routine in STM32F746?

I need this often to check that interrupts are working. And if there is a "weak" function somewhere to raise a flag for the main.c

Is it possible to handle UART IDLE line detection with the HAL library? If not, which is the nicest way to implement it?

I am using the HAL library to use my MCUs peripherals and I would like to use the IDLE line detection of the UART controllers. To me, it seems that the HAL library does not offer any callback for IDLE line detection so I think it is not possible to u...

NUCLEO-F042K6 HSE crystal

I want to run the NUCLEO-F042K6 on external 3V3 supply. I understand that in this case ST-LINK remains down, and I cannot use its crystal for clocking. I want to use a crystal to clock the MCU.Looking at the schematic[1], I wonder if I can use the sa...

Independent Watchdog Freezing in debug mode

Hello everyone,I have to freeze watchdog during debug mode because it geneates problems (the same old story).I tried to use __HAL_DBGMCU_FREEZE_IWDG(); before main loop, but this is not the right solution.Have some tips?Best regardsPS: I use an STM32...

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...