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采用动态扫描方式驱动数码管一般外围硬件较少,但是对单片机资源耗用巨大。介绍了单片机直接驱动8位数码管时利用定时器中断解决动态扫描工作方式下对单片机时间资源占用的问题。
The use of dynamic scanning drive digital tube generally less peripheral hardware, but a huge resource on the microcontroller. Describes the use of timer interrupts to solve the problem of time-consuming single-chip microcomputer time-consumption under the dynamic scanning mode when the single-chip microcomputer directly drives the 8-bit digital tube.