This pin is not used in the sd card lib, but can be used in the sample, for example, if you want to list the fat32 directory as soon as the sd card is inserted.
Remove it, see if you get any errors. The only case i can think of that doing so would make the code work incorrectly is if there is a 'if defined' statement anywhere for it. But 'if defined' statements would be working as designed. I don't think there is a software detect, but it is a good idea as we could save a pin. Sent from my iPhone > On Jun 2, 2016, at 2:30 PM, Guido Jones <[email protected]> wrote: > > No, an SD card socket usually has a physical detect pin if a card is inserted > (microSD sockets usually don't). > > I'm wondering if the SD code requires you to declare/not declare the > existence of a detect pin and the associated PIC I/O if needed. If you > didn't declare a pin and it was looking for a signal, it might mess-up the > code. > > > Thanks! > >> On Thursday, June 2, 2016 at 11:20:09 AM UTC-4, Matthew Schinkel wrote: >> Not sure what part of the code your referring to. >> >> Do you mean hardware spi? Hardware spi is faster then software spi >> >> Sent from my iPhone >> >>> On Jun 2, 2016, at 10:53 AM, Guido Jones <[email protected]> wrote: >>> >>> On last question; I don't see any use of a hardware SD card detect in the >>> 18F67J50 code example. >>> >>> Is there a choice between hardware detect and software detect? (some >>> parameter that needs to be set?) >>> >>> >>> >>> Thanks, >>> >>>> On Wednesday, June 1, 2016 at 11:58:41 PM UTC-4, Matthew Schinkel wrote: >>>> *** To clarify, you simply changed the include statement from the 18F67J50 >>>> to the 18F46J50? >>>> >>>> Right, and you can do that with any PIC that has the required peripherals >>>> (USB, SPI, etc), ram, and available pins. Make sure you use one of the >>>> blink USB samples, running at 48 Mhz. >>>> >>>> I do know there are a few PICs that USB will not work with, but I'm sure >>>> they would give you compiler errors. Some updates to the libraries would >>>> need to be done. >>>> >>>> There are samples for how to do PPS (Peripheral Pin Select), but I am not >>>> familiar with it. Should work. >>>> >>>> Let me know if you get it working, we may be able to add a sample to >>>> jallib. >>>> >>>> Matt. >>> >>> -- >>> 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 [email protected]. >>> To post to this group, send email to [email protected]. >>> Visit this group at https://groups.google.com/group/jallib. >>> For more options, visit https://groups.google.com/d/optout. > > -- > 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 [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/jallib. > For more options, visit https://groups.google.com/d/optout. -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/jallib. For more options, visit https://groups.google.com/d/optout.
