Now I am working on LPC2468. I need to implement a USB CDC device. I changed the sample code from Keil for LPC2368. The sample code transfers data between UART and USB. For I don't need the UART, I remove the code for serial port. But I don't know how to set the serial state, which is set by CDC_GetSerialState(). This function is called by EndPoint1. Firstly I just delete these code in EndPoint1. The result is there is only first char sent to host. Then there is no any response. Please give me some suggestion. Thanks!
View all questions in Keil forum