C1相当于监测跌倒状态，当超过一定时间的开关连通，电容充电达到一定状态，报警电路开始工作……
arm-linux教程PPT.zip
内容简介
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存储rom无非就是16进制数字，按地址存放，读取的时候也按顺序读取……
1\ Width Constraint (Min=10mil) (Max=10mil) (Prefered=10mil) (On the board ) 违反走线宽……
Processing Rule : Clearance Constraint (Gap=10mil) (On the board ),(On the board )
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