#include<reg52.h>
sbit di=P1^0;
void main(void)
{while(1){di=0;
}
}
Build target 'Target 1'
assembling STARTUP.A51...
linking...
*** WARNING L1: UNRESOLVED EXTERNAL SYMBOL
    SYMBOL:  ?C_START
    MODULE:  STARTUP.obj (?C_STARTUP)
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL
    SYMBOL:  ?C_START
    MODULE:  STARTUP.obj (?C_STARTUP)
    ADDRESS: 080AH
Program Size: data=9.0 xdata=0 code=15
creating hex file from "wu"...
"wu" - 0 Error(s), 2 Warning(s).
现在显示没有错误
可是用STC-ISP传到板子上面出现以下问题
请看图片 请大侠们帮帮忙看看，灯怎么也不亮