main.c

S3C44B0X全套培训资料及源代码 e008s3c44b0x

#include "..\startup\44b.h"
#include"..\inc\Def.h"
#include"..\inc\44blib.h"
#include"..\inc\ExIO.h"
#include"..\inc\keyboard16.h"
unsigned char led[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
int Main(int argc, char **argv)
{
unsigned int key;
unsigned int tempkey=0;
Uart_SendByte(0xa);//换行
Uart_SendByte(0xd);//回车
for (;;)
{
	key=GetKey();
	key&=0x000f;
	EXIO_8255A_CTRL=0x80;//输出方式
       EXIO_8255A_PORTB=0xff;//片选
       EXIO_8255A_PORTC=0xff;//不让发光二极管点亮
	if(key>9)
	{
	       Uart_SendByte(0x31);
		tempkey=key-10;
	       Uart_SendByte(tempkey|=0x0030);
		Uart_SendByte(0x2c);
	}
	else
	{
	      	Uart_SendByte(key|0x0030);
	       Uart_SendByte(0x2c);
	}
	EXIO_8255A_PORTA=led[key];
       EXIO_8255A_PORTB=0x7f;
}
return 0;
}