四位十进制频率计设计
包含测频控制器（TESTCTL），4位锁存器(REG4B)，十进制计数器（CNT10）的原程序(vhd)，波形文件(wmf ),包装后的元件(bsf)。顶层原理图文件（Block1.bdf）和波形。
,Four decimal frequency meter measuring frequency controller design includes (TESTCTL), 4 bit latch (REG4B), decimal counter (CNT10) of the original procedure (vhd), waveform file (wmf), packaged components (bsf). Top-level schematic document (Block1.bdf) and waveform.