shine定点库，可在linux实现编录边存，实现实时录音

单片机驱动4位数码管实现个十百千万循环计数。有的数码管不亮是因为硬件的问题。可能是硬件功率太大了。-Microcontroller to drive 4 digital tube ten Millions of cycle counting. Some digital tube does not shine because of hardware problems. May be hardware too much power.