main.c

这是基于三星公司的S3C2410芯片中外部中断的应用.

void printf(char *c);
void clock_init();
void uart_init();
char Uart_Getch(void);
void close_watchdog();

int Main1()
{
	char key;

	clock_init();
	uart_init();
	uart_send("uart communication success!\r\n");
	
	//close_watchdog();
	key_interrupt_init();
	uart_send("键盘中断已经设置好，请按键测试!\r\n");
	
	while(1)
	{
		uart_send("if you want to quit ,please press 'x' button\r\n");
		key=Uart_Getch();
		if(key=='x')
			break;
	}
}

void close_watchdog()
{
	__asm{
		mov r1,#0x53000000
		mov r0,#0x0
		str r0,[r1]
		}


}