STM32 MCUs products

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Minimal circuit for STM32F407

Posted on October 01, 2016 at 01:40DearI'm new with STM32 MCU and would like some expert help me with the minimum circuit (oscillator, power supply with Vinput 9-32V DC, reset, etc.). I just need to connect an SPI device and CANBUS driver. I should ...

[STM32L4] timer interrupt starts immediately

Posted on October 04, 2016 at 13:07Hi, using TIM1 to get a simple 1ms delay (MCU@24MHz, PSC=24, ARR=1000) the interrupt triggers almost as soon as I set CR1:CEN=1. I've found that I'm not the only one having this problem, have followed the advice gi...

Noyb by Associate II
  • 9 replies
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RTC clock source

Posted on October 03, 2016 at 01:46Hello, I'm a little confused about choosing the better clock source for the RTC, is it better to drive it through HSE with 4MHz 10ppm frequency tolerance or using additional 32.768KHz LSE with also 10ppm tolerance?...

Disabling IRQ causes irq routine to be called

Posted on October 04, 2016 at 12:20 Hi, I found something curious (for me...) while playing around usart interrupts on STM32L1 // USART1 is initialized and IRQ is enabled // TC is 1 // TCIE is 0 __HAL_UART_ENABLE_IT(&huart1,...

JulienD by Senior
  • 1 replies
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Sampling ADC data

Posted on October 04, 2016 at 19:55I'm trying to get data from an ADC7689,  using SPI. I have a NUCLEO STM31F411RE and the code is running on SW4STM32. My problem is that when I send addresses, all I get is 0xFF, instead of the values the ADC conve...

marco3 by Associate II
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STM32F429i-Disco GPIO reset state

Posted on October 04, 2016 at 11:17Hello,I've a problem with the reset pushbutton state in the STM32F429i-DISCO: when I push the button I see that some pins are not in the three-state but are pulled down even if there are no other logic that make th...

marabini by Associate
  • 1 replies
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