So, I copied a hex file (created with some demo that really needs the "Sensor Board" extension) and when copied (drag-n-drop on my Win10 laptop), the file shows as a file on the CURIOSITY (F:) device. Even after refresh with F5 or changing device and back. When the USB was disconnected and connected again, it was gone. Does this mean that it actually was flashed? At power-up? Have to test with something that uses the yellow led, I guess... Jan-Erik. -----Ursprungligt meddelande----- Fr=E5n: piclist-bounces@mit.edu F=F6r Chris Roper Skickat: den 8 juli 2018 15:40 Till: Microcontroller discussion list - Public. =C4mne: Re: [PIC] RE: Xpress PIC16F18446 Evaluation Board On 8 July 2018 at 15:19, AB Pearce - UKRI STFC wrote: > Once the file has been flashed, does it then delete the file? Yes, It is not an actual Drive, as the file is written by the file system the PIC is being Flashed, no actual file is created. -- http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/chang= e your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --=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 .