Introduction - If you have any usage issues, please Google them yourself
EDA experiments using macro function modules realize the counter: use-MegaWizard Plug-In Manager to create a 16-bit counter, with counting and the inverse is preset, the Qing 0 function. The experiment was conducted by RESET Kin-ching 0, PSW1 prefabricated Kin control number, pressed into 1234, PSW2 control is against the count, press the reduced count, count up positive. The use of VGA as output device, shows the value, edit the source code to observe the experiment results.