51单片机晶体管延迟闪烁 -

标题: 51单片机晶体管延迟闪烁 [打印本页]

作者: 在路上。 时间: 2016-5-23 00:02
标题: 51单片机晶体管延迟闪烁
刚学单片机请大神请教

#include<reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
sbit we = P2^7;
sbit du = P2^6;
uchar i = 0;
uchar code leddata[]={

            0x3F,  //"0"
            0x06,  //"1"
            0x5B,  //"2"
            0x4F,  //"3"
            0x66,  //"4"
            0x6D,  //"5"
            0x7D,  //"6"
            0x07,  //"7"
            0x7F,  //"8"
            0x6F,  //"9"
            0x77,  //"A"
            0x7C,  //"B"
            0x39,  //"C"
            0x5E,  //"D"
            0x79,  //"E"
            0x71,  //"F"
            0x76,  //"H"
            0x38,  //"L"
            0x37,  //"n"
            0x3E,  //"u"
            0x73,  //"P"
            0x5C,  //"o"
            0x40,  //"-"
            0x00,  //熄灭
            0x4F  //自定义

                     };

void delay(uint x)
{
uint a,b;
for(a = x; a > 0; a--)
      for(b = 120; b > 0; b--);
}
void main()
{
while(1);
{
      du = 1; //打开段选
      P0 =leddata[i];
      du = 0;//关闭段选

      we = 1;//打开位选
      P0 = 0;
      we = 0; //关闭位选
      delay(500);
      i++;
      if(i == 10)
         i=0;
}
}
________________________________________________________
为什么出现警告而且下载不到单片机上
Build target 'Target 1'
linking...
*** WARNING L16: UNCALLED SEGMENT, IGNORED FOR OVERLAY PROCESS
SEGMENT: ?PR?_DELAY?晶体筥作业
*** WARNING L16: UNCALLED SEGMENT, IGNORED FOR OVERLAY PROCESS
SEGMENT: ?CO?晶体筥作业
Program Size: data=10.0 xdata=0 code=204
creating hex file from "晶体管作业"...
"晶体管作业" - 0 Error(s), 2 Warning(s).

作者: 在路上。 时间: 2016-5-23 00:02
求教求教啊

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