STM32 MCUs Products

STM32F072RBT and others is No Stock Available

We cannot purchase microcontrollers. No distributors. Nowhere. When will the problem be solved?

Resolved! (Solved) Unable to reset SPI busy flag in slave mode by any means

The solution was to hard reset the SPI module using RCC_APB1RSTR register.HAL includes macros for this:__HAL_RCC_SPI2_FORCE_RESET(); __HAL_RCC_SPI2_RELEASE_RESET();With these it completely resets and can be initialized again!I'm using SPI slave mode....

Resolved! STM32L452 ADC shifted

STM32L452 ADC1 single-mode works with DMA1. ADC results are higher than the actual Voltage by around 25%. Any possible directions?

Resolved! Is there any STM32H7 reliable emulator?

Hi everybody,I'm working on the stm32H747/757, and later will work on STM32H753.We have a test-driven development attitude and I was curious, is there any way to emulate the MCUs of H7 series?Thanks all :)

Programming secondary chip using SWD interface

HiI have a chip in main board that can be programmed using SWD interface.Can I use the SWD of the STM32F407 to program another chip (and not just for programming and debugging the STM32) ?If so - Are there any HAL functions ?Thanks

Resolved! PWM stm32f446re bare metal not working (Pin is basically inactive using a multimeter)

#define CR1_CEN (1U<<0) /* *************** Enabling PA6, PA7 as OUTPUT PINs *************** */ /* Enabling clock access AHB1EN for GPIOC */ RCC->AHB1ENR |= (1U<<2); /* *************** Setup TIMER8 for PWM control *************** */ /* Enab...

core to core event interrupt

Hello,I am working on Nucleo-h745ziq board. I enable cm4 to cm7 event and cm7 to cm4 .I enable the timer in cm4 and cm7 .But the event it doenot occur in cortex m7 ,my programme is below please help me.void HAL_TIM_PeriodElapsedCallback(TIM_HandleTy...

Resolved! Possible porting from MCU STM32F746ZG to MCU STM32F767ZGT6

Hi folks,,, I would like to understand how much is the effort of doing the porting from MCU STM32F746ZG to MCU STM32F767ZGT6 ...How many changes I should made?Thanks a lot for this information but now the situation with the supply of micro as you kn...

Resolved! How to use a same uart for two devices

Hello every one , i'm using a STM32L100RX, i am using PC11 and PC10 ports as USART3, so far everything it's okay, but i need to use the same usart (USART3) on the PB11 and PB10 pins...i need configure these pins in runtime because i have another devi...

[SOLVED] Change the uart pins and afterwards, i get wrong value...why?

Hi folk, how's tricks?i need some help from you happens following:I have a UART3, but this UART work's on PORTB and PORTC pins, so i need to use this uart some times on PORTC and other times on PORTC, so i reconfigure the ports in runtime to get this...

STM32 MCUs Products

Forum Posts

STM32F072RBT and others is No Stock Available

Resolved! (Solved) Unable to reset SPI busy flag in slave mode by any means

Resolved! STM32L452 ADC shifted

Resolved! Is there any STM32H7 reliable emulator?

Programming secondary chip using SWD interface

Resolved! PWM stm32f446re bare metal not working (Pin is basically inactive using a multimeter)

core to core event interrupt

Resolved! Possible porting from MCU STM32F746ZG to MCU STM32F767ZGT6

Resolved! How to use a same uart for two devices

[SOLVED] Change the uart pins and afterwards, i get wrong value...why?

STM32H523 hardware development problem

LED Blinks Automatically on Nucleo-H755ZI-Q Instea...

STM32H5, unable to relocate ISR to 0x08008200, but...

STM32F405 HSE timeout is too short to enter DFU mo...

RTC alarm - does this work if the MCU is already i...

RTC_ISR.INIT is not quite write protected by PWR_C...