STM32 MCUs Products

STM32F407 FPU clock cycles

I have been testing the performance of some maths functions on an STM32F407 CPU running at 168 MHz. From the documentation it is stated that the vmul.f32 (HW 32bit multiply instruction) should take 1 clock cycle to operate. Using my simple test progr...

How can i get SD Card connect and disconnect interrupts

Hello All, I want to get an interrupt whenever i connect or disconnect sd card in to sd card slot . How to do this ?I have stm32f7 discovery board . I searched in hal_sdio.c , but couldnt get any info. what is the best way to achieve this ? Thank you...

Error compile

Hello everyone. I have a problem with Stm32f407IGH EVAL.I coppy template of source code to other file. I also modified path include.But when I compile, build output have 30 error, all error in file stm32f4xx_fmc.c file, like FMC_Bank1 undefined, FMC_...

I need to: Uncomment the line below according to the target STM32H7 device used in your application... [Solved]

However the .h file is read only. What is going on? What have i done wrong? I've attached the tree from IAR. thanks

syntax is the bane of my work...

I don't understand why this would compile and work for one project but not another...const char Menu[40][32] = { "\033[91;2mShow Menu\033[93;2m <space>", "\033[0m ", "1 Read Flash status" };   char * ptr = &Menu; <- fails here [C...

SPI master send simle data error

Hi, do you know how is the simplest code to send data from stm32(master) to arduino (slave) through spi.I tried to write my own code, so here is the sktech ofmy code :#define SPI2_Funct 0x05 // This is a function of GPIO AFR#define CMD_LENGTH  2#defi...

STM32H753I-EVAL SDMMC cubeMX problem

Hello, I am a total newby for what concerns stm32 programming and this question may be stupid.... I am using a STM32H753i-eval board and will need to use fdcan, lcd, SD and a few more peripherals. For this reason I started my project using STM32cubeM...

I am using STM32L432KC Nucleo Board. My Vref is connected to 3.3V but I wish to limit my DAC output from 0 to 1 V. How I can achieve this?

I understood that for FLASH of STM32L05x 1 bit error detection and correction is provided. What happens when more bits are corrupted?

Basic question regarding timers and generating a simple delay

Hi there,Let say I want to generate a 1 ms delay using a timer. I set my prescaler to have a 1ms granularityTIMx->PSC = (uint16_t)((SystemCoreClock / 1000U) - 1);Now if I want to generate a 2ms delay I usually do it like this (assuming the UIF flag i...