STM32 MCUs Products

EXTI Interrupt Handler throwing HardFault for one MCU, but not for other MCU

I have two custom boards with one STM32F746 each. Both MCUs run identical code (in different projects with potentially different configuration).One MCU runs as expected, but the other MCU throws a HardFault as soon as MX_NVIC_Init() enables EXTI int...

ISM43362 WIFI Module on B-L475E-IOT01A

I connect with the module to an Access Point and get IP. Now I have some devices connected to the same Access Point. I want to receive UDP packets from the devices.What should I do? I can connect only with TCPif (WIFI_StartServer(SOCKET, WIFI_TCP_PRO...

Hello! What is the difference between output compare and output compare no output in Cube IDE? Can I use output compare no output to trigger ADC?

Potential bug with SPI3/I2S3 for STM32H753ZI

Hi guys!I believe I found a bug with the SPI/I2S peripheral.The initial problem started here: https://electronics.stackexchange.com/questions/571749/function-pointers-causing-unexpected-behaviour-within-stm32h753zi-microcontrolle?noredirect=1#comment...

I set the MCU STM32F103C8 to 72 MHz (8 MHz external oscillator). However, the function does not give exactly 1 ms of time, but a value approximately 4 times larger. Any suggestion?

void delay_ms ( unsigned int i ){  unsigned int temp;  SysTick-> LOAD = 9000 * i; // if subtle, the SysTick-> LOAd = 9 * i;  SysTick->CTRL = 0x01;  SysTick->VAL = 0;  do{ temp = SysTick-> CTRL; // read the current countdown value  }while ( ( temp & 0...

SPI pin MISO not going to low after sending data to ADC

Hello! I am trying to communicate with ads1118 through spi3 using HAL library and STM32F205. According to datasheet, after sending the configuration data, we must wait for MISO to go low then we'll be able to retrieve data from the chip. But the MISO...

How can I find SDIO problem?

Hey guys.Im using stm32f103rct6 and sdio for sd card.My problem is that when using fatfs functions i get different errors that are random. For example once it gives me disk error but the next time it gives me disk not ready in a same operation.How ca...

Sending some data clears UART interrupt bit

I am using STM32F042K6TX. I set UART read data register not empty interrupt, I am sending and receiving data. This is how RXNEIE bit before it is corrupted. In this code when "i" is 2 it clears RXNEIE bit. I tried all numbers 0-255 and only 2 does t...