超声波流量计的部分设计程序，此部分为控制芯片ACEX1K系列的EP1K50QC208-3中的代码，采用的是VHDL语言，里面包括LCD12864的读写代码、流量的处理等-Ultrasonic flowmeter in which the design process, this part of the control chip ACEX1K series EP1K50QC208-3 in the code, using the VHDL language, which includes LCD1