STM32 MCUs Products

Disable/enable interrupts globally on STM32F746

Hello,just a simple question. We share some data between ISR and application on STM32F746 processor (no RTOS used). How can we disable interrupts globally while application accesses the shared variables? Afterwards interrupts should be enabled again....

ADC Modes

FolksIs there a good resource for understanding various ADC modes in F303 family? There is much confusion about the terminology (regular versus injected, continuous versus discontinuous, etc.) The material presented in manual/datasheet are diffuse, v...

The X-NUCLEO-CCA02M1 quick start guide says the X-NUCLEO-CCA02M1 supports STM32F072 but the MEMSMIC1 LIBRARY does not list the STM32F072 as an option. In direct conflict with QS guide. How do get the bin files for the F072?

SWD-CAN bus Bridge

Hi everyone! I want to have ability to program and debugging STM32 MCU's via CAN: in other words, I like to have functionality of ST-LINK (including connection via STM Studio), but using CAN, not USB. How to implement SWD master, is a any source code...

Dynamic vector allocation in external RAM

Hi,I am currently working on a large project of my own on an STM32F7 cortex-m7 microcontroller in C++ using GCC. I need to store a wide array in an external SDRAM (16 MB) containing vectors of notes structures (12 bytes each). I have already a workin...

Is FMC burst should be done in software using DMA ?

Hello,We need to perform burst read and burst write in FMC (PSNOR) .HAL_StatusTypeDef HAL_SRAM_Read_DMA(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pDstBuffer, uint32_t BufferSize); HAL_StatusTypeDef HAL_SRAM_Write_DMA(SRAM_HandleTypeDef...

Problem of SPI slave transmit

I testing SPI using two STM32F411 disco.One is master, the other is slave.My problem is only work MOSI , MISO is not working.I attach my Two source code.This is setting of my disco board.Do you have any idea about error of Slave transmit of SPI?

RTC missed alarm STM32 L152VB

Hi,I use RTC for timing FreeRTOS (also in Tickless mode - in STOP mode) I use ALARM A in rtc. I noticed one weird behavior. Some times for examaple after 5 hours of running program the ALARM A is missed - no Interrupt of alarm happended, althougt the...