STM32 MCUs Products

STM32G4 series fastest way to add 32 16bit signed integers

I have the following function to sum 32 16bit signed integers as optimally as I think is possible:int16_t sum32elements2(int16_t vals[]) { uint32_t s1 = __SADD16(*(uint32_t*)&vals[0], *(uint32_t*)&vals[2]); uint32_t s2 = __SADD16(*(uint32_t*)&val...

Update ARR value when timer is enable ?

I want to update ARR new value when timer eneble(counter is counting). What can I do to update it quickly without time latency (like setting the UG bit) ? I am using stm32f0.

How to configure MPU for STM32F429ZI using CUBE MX?

I am currently using the STM32F429ZI. The ARM Cortex M4 CPU contains an MPU, but I am having trouble configuring it from the STM32CUBEMX application. I have seen examples of other MCUs having their MPUs configured from the CUBE MX, but this option do...

control SK9822 2020 LED's via SPI using Registers

HiI need to control some SK9822 2020 RGB LED's.I figured out that with the information on this website I can control them over SPI in transmitt only mode.The Problem I have now is, that I need to do it using Registers and can't use CubeMX for setting...

What is the startup time of PVD?

I want to use the PVD function of my STM32U5(but I think this applies to nearly all STM32s) to detect when my supply voltage goes over(!) a specific threshold. But it might already be there when I enable PVD. Since this means looking for a zero on PV...

Flash memory size STM32F303RET6

Good morning,I need to create a shared memory space between two applications (Bootloader and Application).I am working with STM32F303RET6 MCU.I want to do this inside flash memory and not SRAM.For that reason I found many examples and codes where fun...

how to write on the CCR2 register.