#include "ioCC2530.h"
#include "../lib/delay.h"
unsigned char seg7table[16] =
{
/* 0 1 2 3 4 5 6 7*/
0xc0, 0xf9, 0xa4, 0xb0, 0x99, 0x92, 0x82, 0xf8,
/* 8 9 A B C D E F*/
0x80, 0x90, 0x88, 0x83, 0xc6, 0xa1, 0x86, 0x8e
};
unsigned char i;
void SegInit()
{
P1INP &= ~( 0x1 << 2 ); //P1.2上拉
P1SEL &= ~( ( 1 << 0 ) | ( 1 << 1 ) | ( 1 << 2 ) ); //P1.0,P1.1,P1.2为GPIO
P1DIR |= ( 1 << 0 ) | ( 1 << 1 ) | ( 1 << 2 ); //P1.0,P1.1,P1.2为OUTPUT
P0SEL &= ~( 1 << 4 ); //P0.4为GPIO
P0DIR |= ( 1 << 4 ); //P0.4为OUTPUT
//74HC595初始化
P1 |= ( 0x1 << 0 ); //P1.0 CLR, 复位
P1 |= ( 0x1 << 1 ); //P1.1 DATA,数据寄存器
P1 |= ( 0x1 << 2 ); //P1.2 CLK，位移寄存器时钟输入
P0 |= ( 0x1 << 4 ); //P0.4 LOCK，数据寄存器开始时钟
}
void SendSeg7( unsigned char value )
{
unsigned char i;
P0 &= ~( 0x1 << 4 ); //P0.4 LOCK
P1 &= ~( 0x1 << 2 ); //P1.2 CLK
P1 &= ~( 0x1 << 1 ); //P1.1 DATA
//将数据value的8个bit按串行方式分时赋值P1.1，P1.2控制时钟值高时读取P1.1
for( i = 0; i < 8; i++ )
{
if( value & 0x80 )
{
P1 |= ( 0x1 << 1 ); //P1.1值1，DATA
}
else
{
P1 &= ~( 0x1 << 1 ); //P1.1值0，DATA
}
value <<= 1;
P1 &= ~( 0x1 << 2 ); //P1.2 CLK
P1 |= ( 0x1 << 2 ); //P1.2 CLK
}
P0 &= ~( 0x1 << 4 ); //P0.4 LOCK
P0 |= ( 0x1 << 4 ); //P0.4 LOCK
}
void main( void )
{
SegInit();
while( 1 )
{
for( int i = 0; i < 0x10; ++i )
{
SendSeg7( seg7table[i] ); //循环显示0-F
delay( 2000 );
}
SendSeg7( 0xff );
delay( 200 );
}
}