HELLO ALL, .. . . . I could really use some help with using USB on the PIC 18F4520.=20 I am going to use a FTDI USB to RS232 converter to talk to the PIC=20 18F4520 Through the RX and TX Pins. I want to send Configuration Code to=20 a 24C512 serial EPROM. When I add additional devices I want to be able=20 to update the EPROM. I also want to be able to use a Win 8.1 64bit Pro=20 PC to control the Programmer. I also do a lot of searching and research=20 on materials that I acquire from the MicroChip website. I have been=20 reading the MC USB Device Firmware Framework User's Guide. . . . . I have the latest version of MpLab, and the latest versions of=20 the X8, X18, and X32 Compilers installed. I also see that I need to=20 install the latest versions of C30 C and C18 C Compilers and setup the=20 proper Paths for these files. I don't mind doing the footwork. I am=20 Disabled and retired. This gives me a lot of free time. Thanks, Richard R. Pope 1230 19th Street #5 Reedsburg, WI 53959, USA 1-608-768-7448 mechanic_2@charter.net --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .