#define rGPFCON (*(volatile unsigned long*)0x7F0080A0)
#define rGPFDAT (*(volatile unsigned long*)0x7F0080A4)
#define rGPFPUD (*(volatile unsigned long*)0x7F0080A8)
int _main(void)
{
while(1)
{
rGPFCON=0xffff7fff;
rGPFPUD=0xffffafff;
rGPFDAT=0x0000f000;
}
return 0;
}
这样就可以让蜂鸣器一直响了,最简单的程序了。不过你还得有启动代码,对开发环境进行一些配置