PA1100磁头解码芯片驱动代码，支持银行卡轨道1、2、3数据，支持正反向刷卡，执行结果分别打印出磁条卡的3个轨道数据。-PA1100 head decoder chip driver code, support bank card orbital 1,2,3 data support the pros and cons to the credit card, the results of the implementation were to print out the magnetic stripe cards three orbital data.