main.c

ARM公司ATC培训的所有练习源码

#include "nvic.h"
#include "uart.h"
#include "timer.h"
#include <stdio.h>
#include "cortexm3.h"
#include "pseudo_intrinsics.h"

extern void UART_init(void);

int main(void)
{
    volatile int delay=0;

    UART_init();
    //Initialise NVIC and SysTick here


    printf("Hello world! Retargeted M3 library\n\r");

    /* Loop forever */
    while( 1 )
    {
#if defined SYSTICK_INTERRUPT
        printf("Hello from main!\n\r");

        delay=1000000;
        while(--delay > 0)
        {
        }

    /* Sleep and wait for SysTick (or something else) to interrupt */
    __WFI();
#endif
    }
    return 1;
}