STM32 MCUs Products

How to change system clock during run time?

Hello, for decreasing the power coonsumption I want to change HSI to LSI. This is the HSI clock configurations for 72 Mhz:void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; RCC_P...

the screen refreshes twice when touching the screen

hello ST community,I'm wondering why when I'm touching the screen (interruption) the screen refresh twice and when I do this with a push button (interruption too) it refreshes only once. is there an explanation for that (I want that the display refre...

NMI and Hardfault interrupt issue

Softwares Details:µVision IDE : version 5.31.0.0STM32CubeMx : version 5.4.0Hardware Details:Mcu: STM32G030K6T6Programmer : STLink-V3MiniWork Description:I configured 3 pins of mcu as external interrupts triggering on both rising and falling edges fro...

How do you have to change an ST sample program so that you can use it as your own program

I would like to use the Bluetooth sample program SampleApp as the basis of my own program in such a way that you can call up the ioc file afterwards, change it and save it again without losing the changes in the Bluetooth part. I am not an experience...

How to interface STM32L151QD with MX25R6435F external flash memory using SPI?

interface STM32L151QD with MX25R6435F flash memory using SPI. But i found clock frequency of STM = 32MHz maximum and Flash mem frequency = 80MHz . so how to implement SPI interface between these two. Is it possible??? Do we have any example code???

understanding the I2C peripheral on STM32L412

I want to use the I2C peripheral on my STM32L412C8T6, although I read the reference manual I'm still finding the operation of this peripheral a little confusing. I have a 4 channel I2C 12bit DAC to operate, so I want the I2C to act as a master transm...

STMh734 GPIO as parallel bits interface

HiI would like to use the GPIOs on the STMh743 as a parallel bit bus for A2D sampling through an external A2D device. The sampling resolution could be low as 4bits thus 4 pins could be used for data. The sampling rate should be 100Mhz so it will take...

['F4 documentation] "Weak pins" and EVENTOUT

The same applies to the rest of the pins (PI8, PH0, PH1), too.And, of course, I assume this is to be fixed accross all 'F4 DS, maybe other families too; I won't go check them, that's ST's task.JW

I need to design wireless localization network to estimate the user position made ZigBee Coordinator (ZC), a wearable Mobile Node (MN) and a set of ZigBee Anchors (ZAs),compatible with microcontroller B-L475E-IOT01A1.