STM32 MCUs Products

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Resolved! Core comunication using STM32H7

Hello, What is the best way to communicate between cores? I am working on a project in which I need to read data using one core and process this data using a second core. I am working with a STM32H745. The idea is that the M4 core is going to be used...

Replace RTC Crystal with RTC Oscillator ?

We are working on a custom board based on STM32L476RGT6, and we are facing 32.768Khz crystal startup issue. Board stucks at the startup in following piece of code : HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) and it fails while waiting for RCC_L...

MAhme.4 by Associate II
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  • 1 replies
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Having problem with UART communication in Interrupt mode

I am doing a project on STM32H747 DISCO Discovery board involving UART. I am sending one string continuoulsy with 5 seconds delay from esp32 to stm32. I am able to receive the string in polling mode but I am not able to receive the string in Interrup...

SLuit.1 by Associate III
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  • 2 replies
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Weird PWM Timer3 master and PWM Timer1 slave behaviour

Hello, I have a timer 3 master and timer 1 slave. When a button is pressed, master is activated as long as button is pressed, and then slave is triggered based on master's output signal (high / low) (gated slave control)(This is a continuation of my...

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Xxoyo.1 by Associate III
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  • 4 replies
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STM32F746GDISCOVERY, PWR_PVD, STM32CubeIDE

I want to make an interrupt when power > 2.0V. STM32CubeIDE generated:/** * @brief NVIC Configuration. * @retval None */ static void MX_NVIC_Init(void) { /* PVD_IRQn interrupt configuration */ HAL_NVIC_SetPriority(PVD_IRQn, 8, 0); HAL_NVI...

Resolved! RTC inaccuracy induced by internal clock source?

I'm using the STM32L431xx mcu. The current hardware configuration of our design has no external clock source (crystal), so we are using the internal one. And there's a new functionality which demands second-accurate real time clock, over a period of...