key1.c

嵌入式的简单测试程序

#define GPFCON (*(volatile unsigned *) 0x56000050)
#define GPFDAT (*(volatile unsigned *) 0x56000054)
#define GPFUP (*(volatile unsigned *) 0x56000058)


//GPF6 GPF7 ARE LED1 LED 2
#define GPF6_OUT   (1<<(6*2))


//
#define GPF0_INT   ~(3<<(0*2))
//#define GPF1_INT   ~(3<<(1*2))
//#define GPF2_INT   ~(3<<(2*2))
//#define GPF3_INT   ~(3<<(3*2))
//#define GPF4_INT   ~(3<<(4*2))

int main()
{
GPFCON=GPF0_INT; 
//|GPF1_INT|GPF2_INT|GPF3_INT|GPF4_INT|GPF6_OUT;
GPFUP  = 0xff;
GPFDAT=0xc0;
while(1)
{
GPFDAT=((GPFDAT&0x01)<<6);
}
return 0;
}