CY7C68013单片机通信测试:数据从控制面板传入EP1IN端点，然后送入IOA端口，然后程序读取IOA端口，送入EP1IN端点，在控制面板显示。-CY7C68013 Singlechip communications test: data from the control panel EP1IN incoming endpoint, and then into the IOA port, and then the procedure to read IOA port, into EP1IN