STM32 MCUs Products

What's the maximum kernel clock of USART of STM32H7X? Is 8 sampling must be used for 12Mbps communication if the 196Mhz can not be configured?

HAL vs LL

Posted on November 13, 2016 at 17:00Hello there, I was getting quite used to HAL for about a year now. Then I was trying to find out something about modbus mode in STMF0 and I find this ''Low Level API''. I cant seem to find any of its functionality...

STM32F103 - Code flash getting erased automatically

Hi, Our STM application is a smart bike IoT device, that let's a user track his / her vehicle.Of our devices deployed in the field, some of them stopped functioning. On debugging we found that the entire STM flash was erased. What could be the possib...

STM32L432KX and WINCE

I have a system with WIN CE v6.0 installed and a custom board with micro STM32L432KX. I've tried to install driver for FTDI but no succes, at the moment WIN CE doesn't recognize the Virtual COM created from my board, are there proper drivers or proce...

SPI2 migrate from STM32H743XiHX to sPi32H743ViHx PC to PC_2

I am trying to convert project file from STM32H743XiHX (265 pin package)to sPi32H743ViHx (100 pin package)I use Spi (with DMA actice) 2 on original board and MISO and MOSI where connected to PC2 & PC3on new Board MISO and MOSI of SPI2 are connected t...

Simple 32F417 TIM1 usage to measure TIM1_CH1 pulse duration

I have PE9 as an input, and using AF1, PE9 should be connecting to TIM1_CH1 input.Input is 400Hz square wave, 0 to +3.3V.This is the code// Set up TIM1 for ~400Hz waveform period measurement, via PE9 static void KDE_config_TIM1_period_measure(void) {...

STM32H7xx ADC in scan mode with continue DMA doesn't works when dcache was enabled

Hi,I use the nucleo board "Nucleo-H743ZI2 and STMCube.See attached file for setup. (Actual DCACHE option disabled)I call the ADC as follow.ALIGN_32BYTES( uint32_t Buffer[11]);   if (HAL_ADC_Start_DMA(&hadc3, (uint32_t*)Buffer, 11) == HAL_OK) { }  Th...

Why SDRAM1 and SDRAM2 have the same pins

Hello,can someone please help me,why do when i use SDRAM1 and then add SDRAM2 the data and address pins are the same but only the chip enalbe. does this mean that all pins even the Data pins DQ can be connected parallel for both chips? have someone a...

I2C Slave - clock stretching disables communication and other problems (STM32L0)

I try to implement I2C slave so it behaves like a typical EPROM and master can read/write using HAL_I2C_Mem_Read/HAL_I2C_Mem_Write functions.After 3 days of searching and trying I found only one, partially working example: STM32F072 I2C slave Receive...

Why STM32F030K6T6 GPIO output voltage is limited in open Drain configuration!?

i'm using STM32F030K6T6 microcontroller GPIO in open drain mode, i use external pull up res. by value 47k to VDD=15v while supply voltage for STM is 3.3v, the reason is that i wanna make a switching signal with 0v and 15v in output pin by the input 0...