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who tested this circuit? http://www.oshonsoft.com/sdcard.php
To connect an SD card has a 16f876
because I did not manage to make it work, the scheme is correct
to the SD card (tested with Arduino), this just may be the
I have only seen it working with a full sized 1G card.... Remember that an SD card pulls quite a lot of current and only works at 3v so make sure you have a 0.1uf cap across the power rail ( some suggest bigger 1uF~4.7uf ) and allow the card to suck up some amps...
I have a special license pack1 functions.
with 18F4550 the result is the same,
the 18F4550 SPI protocol SDO = RC7, SDI = RB0, RB1 = CLK, CS = RA5
but may use other pin?
I just did the test with external 3.3V supply, failure ...
I managed to make the examples work, except for FAT16. With raw read / write and FAT32 everything work as expected (with the Vladimir´s wiring) but...for fat32 to work, I had to format the SD card with a formatting utility from SD; just formatting from the PC with windows utilities just didn´t go for me.