STM32 MCUs products

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Resolved! HAL_I2C_Mem_Read returns error if used inside ISR

 Hi,Currently I am implementing the smbalert functionality for ltc4015 based battery charger.But when I am using the below mentioned code(commented section) inside isr it is returning communication error.  //SMBALERT interrupt from ltc4015 to stm32l0...

Resolved! Kit/boards recommendation for handheld game console

Hi,I have for dream to be able to create a handheld game console like the PSP when I was younger. It's for this main reason I study electronics.I wonder if there is a kit that help me to understand and learn about the concept of it or something not t...

KarlY by Associate II
  • 8 replies
  • 2 kudos

Questions about how some HAL protocoles works in RTC

Hello ! I've been practicing how RTC works in STM32 Nucleo and I've used a code from this website tutorials.   void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc) { z ++; RTC_AlarmTypeDef sAlarm; HAL_RTC_GetTime(hrtc, &RTC_TimeStruct, FORM...

Xenon02 by Associate III
  • 5 replies
  • 2 kudos

Analog Watchdog Interrupt feature in STOP Mode

Hello, this is my first project here, I'd like to get some guidance please.  I work with STM32L073 Nucleo board, and along other features successfully configured Analog Watchdog Interrupt on PA4 pin, it works great in normal mode, but not when the IC...

SergioL by Associate
  • 1 replies
  • 0 kudos

STM32L083 UART receives only one byte

Hi,I am trying to receive data (on STM32L083) via USART1, the way I was used to doing it on STM32L071. Specifically, I used a circular buffer that was continuously written to by DMA - RX. Now, I've ported the code to this L083 and it seems that nothi...

JR2963 by Senior
  • 8 replies
  • 1 kudos

How to keep HSI running in STOP mode?

Hello support team.I'm using the STM32L011D4P, I configured the MCO output to repeat the HSI oscillator output divided by 16 and have a 1 MHz signal. With the help of an oscilloscope it is possible to identify a 1 MHz square wave.In the datasheet, I ...

Resolved! STM32L0 SPI and CS HAL Speed

Hi there!First time on the community, but have been programming with STM32s for some time now. I am currently facing a speed challenge using the HAL_SPI_Transmit() function. In order to toggle the CS line, I have always done something along the lines...

bwefers by Associate
  • 3 replies
  • 2 kudos