User Activity

#include "stm32l4xx.h"#include <stdint.h>#define SYS_FREQ 16000000#define APB1_CLK SYS_FREQ#define UART_BaudRate 115200#define GPIOAEN (1U<<0)#define UART2EN (1U<<17)#define CR1_TE (1U<<3)#define CR1_UE (1U<<0)#define ISR_TXE (1U<<7)static void u...