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Timer-interrupt
- 在使用12MHz晶振的条件下,从T1产生50ms定时,计数从“00”开始,每1s加1,到“59”后,再从“00”开始,完成60s定时工功能-In the use of12MHz crystal condition, derived from the T150ms timing, counting from the"00" begin, each1s plus 1, arrived at the"59", from"00" to complete the function,60s timing