I ran both a serial monitor via USB (but no power from that connection) and the "real" USB connection, and I've noticed that the code will list the contents of the SD card and then proceed to try to mount the SD as a Mass Storage Device.
I'm not too keen on powering it from "both" sides, but the PC should be able to handle that. I'll give it a try and see... Thanks! On Friday, June 3, 2016 at 5:42:45 PM UTC-4, Matthew Schinkel wrote: > > I can hook it up and try again, but it sounds like a power issue. I did > have it working, but I think I've only tried with external power. > > just a guess, but It could also be a timing issue with when USB and SD > card is initialized, as external power may keep the sd card on. > > Matt. > > On Friday, June 3, 2016 at 12:41:43 PM UTC-4, Guido Jones wrote: >> >> >> <https://lh3.googleusercontent.com/-ICfTjsfCSWA/V1GzC1j01rI/AAAAAAAAAB0/nmj6pX1I7xU7IY0qskMS49Ky3eKTWJU7gCLcB/s1600/JALLIB-SDC-WIN10_error-2.jpg> >> >> >> <https://lh3.googleusercontent.com/-dhHcpeEV7rU/V1GzEtst5GI/AAAAAAAAAB8/icwzZBk_0IEULtucKdOzabVv6fK6LS-6gCLcB/s1600/JALLIB-SDC-WIN10_error-3.jpg> >> >> >> <https://lh3.googleusercontent.com/-bSPy5bNXs98/V1GzAF6-xHI/AAAAAAAAABs/ZVF0Ah2UwEQBWXW8mztJtSZX8Qr9XzEDQCLcB/s1600/JALLIB-SDC-WIN10_error-1.jpg> >> OK, tried a completely new 18F26J50 board (a custom SMD application I >> made a while ago), and using SPI2 I get *almost *the same result: >> >> - When externally powered the SD card is recognized and the directory is >> read correctly. >> >> - When connected to the USB the generic Mass Storage Device is recognized >> and added to the Device Manager, but the associated drive letter is never >> assigned. >> >> >> FYI, if no card is inserted, the Mass Storage Device is *not *added to >> the Device Manager, so it's not an issue of card detection or having a >> valid card present (it passes that test when present). >> >> Something odd is going on in how Windows interacts with the MSD library. >> I've attached Windows 10 screenshots of the errors that *both *boards >> produced, with completely different set-ups. >> >> >> Has anyone categorically got Mass Storage working with any of the >> USB-enabled 18F PICs? >> > -- You received this message because you are subscribed to the Google Groups "jallib" group. To unsubscribe from this group and stop receiving emails from it, send an email to jallib+unsubscr...@googlegroups.com. To post to this group, send email to jallib@googlegroups.com. Visit this group at https://groups.google.com/group/jallib. For more options, visit https://groups.google.com/d/optout.
