TP-801单板机已获得了广泛的使用.但这种1.9968兆赫时钟频率的单板机,对于高密度的采样显示等实时处理,其速度指标往往嫌低.提高指令执行速度必须提高主频,而主频的提高牵涉到整个单板机的硬件结构和系统软件的工作.我们通过增加两块双D锁存器和一块四与非门,并相应调整监控程序,将单 TP-801 single board machine has been widely used.But this 1.9968MHz clock frequency of single board machine, for high-density sampling display real-time processing, the speed index is often too low.Improve the instruction execution speed must increase the frequency , While the increase in clock speed involves the work of the hardware structure of the entire single board machine and system software.We increase two double D latch and a four NAND gate and adjust the monitoring program accordingly,