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Communication between K66 USB virtual serial port and PC

Question asked by 豆豆 张 on May 6, 2020
Latest reply on May 12, 2020 by Alexis Andalon

First of all, thank you for answering my questions.

K66 single chip microcomputer as the control core,complete the collection of analog electric quantity and transfer the collection result through CAN and USB。Now there are the following questions:

1.How to improve the accuracy of AD acquisition? What is the relationship between sampling period and conversion time?Whether ADC accuracy can be improved by changing the configuration of conversion time register?

2.What is the reason that K66 can send data to PC, but can't receive the data sent by PC?

3.After downloading the program, connect the K66 control board and PC with USB. There is no device identification in the PC device manager. Why? During this time, the driver is replaced many times.

Thank you very much.