http://58349172.qzone.qq.com Sat, 28 Nov 2009 13:52:17 GMT Qzone zh-cn Copyright (C), 2005-2008, Tencent Tech. Co., Ltd. Thu, 20 Aug 2009 17:34:50 GMT http://58349172.qzone.qq.com/blog/1250789690 仿真图

我的测试程序如下：
#include <iom16v.h>
#include <macros.h>
#define uchar unsigned char
#define uint unsigned int
void HC595WRITE_byte(uchar data)
{
char i=0;
DDRA|=(1<<PA5);
DDRA|=(1<<PA6);//data_cp=0
DDRA|=(1<<PA7);//SH_CP=0
for(i=0;i<8;i++)
{
if((data&0x80)==0x80)
PORTA|=(1<<PA5);//S_data=1 out
else
PORTA&=~(1<<PA5);//S_data=0 out

PORTA|=(1<<PA7);//SH_CP=1
data<<=1;
PORTA&=~(1<<PA7);//SH_CP=0
}
PORTA|=(1<<PA6);//data_cp=1
PORTA&=~(1<<PA6);//data_cp=0
}
void main()
{while(1)
{
uchar e;
HC595WRITE_byte(e++);
}
}等待SPI接口续集把 ]]> http://58349172.qzone.qq.com/blog/1250789690#comment 134218241 Thu, 20 Aug 2009 17:34:50 GMT http://58349172.qzone.qq.com/blog/1250789690 http://58349172.qzone.qq.com/blog/1247504089 ]]> http://58349172.qzone.qq.com/blog/1247504089#comment 134218240 Mon, 13 Jul 2009 16:54:49 GMT http://58349172.qzone.qq.com/blog/1247504089 http://58349172.qzone.qq.com/blog/1242974102 ]]> http://58349172.qzone.qq.com/blog/1242974102#comment 134218240 Fri, 22 May 2009 06:35:02 GMT http://58349172.qzone.qq.com/blog/1242974102 http://58349172.qzone.qq.com/blog/1242155275 ]]> http://58349172.qzone.qq.com/blog/1242155275#comment 134219264 Tue, 12 May 2009 19:07:55 GMT http://58349172.qzone.qq.com/blog/1242155275 http://58349172.qzone.qq.com/blog/1241422817 ]]> http://58349172.qzone.qq.com/blog/1241422817#comment 134218240 Mon, 04 May 2009 07:40:17 GMT http://58349172.qzone.qq.com/blog/1241422817 http://58349172.qzone.qq.com/blog/1240566854 高手说你是高手,你才是高手;男人背地里说你帅,你才是帅;女人背地里说你靓,你才是靓;同事背地里说你有才,你才是有才.你高吗?你帅吗?你靓吗?你有才吗? ]]> http://58349172.qzone.qq.com/blog/1240566854#comment 134218240 Fri, 24 Apr 2009 09:54:14 GMT http://58349172.qzone.qq.com/blog/1240566854 http://58349172.qzone.qq.com/blog/1240394340 ]]> http://58349172.qzone.qq.com/blog/1240394340#comment 134218240 Wed, 22 Apr 2009 09:59:00 GMT http://58349172.qzone.qq.com/blog/1240394340 http://58349172.qzone.qq.com/blog/1240387709 ]]> http://58349172.qzone.qq.com/blog/1240387709#comment 134218240 Wed, 22 Apr 2009 08:08:29 GMT http://58349172.qzone.qq.com/blog/1240387709 http://58349172.qzone.qq.com/blog/1239291396 ]]> http://58349172.qzone.qq.com/blog/1239291396#comment 134218240 Thu, 09 Apr 2009 15:36:36 GMT http://58349172.qzone.qq.com/blog/1239291396 http://58349172.qzone.qq.com/blog/1238467584 ]]> http://58349172.qzone.qq.com/blog/1238467584#comment 134218752 Tue, 31 Mar 2009 02:46:24 GMT http://58349172.qzone.qq.com/blog/1238467584