Micro SD card with FatFs SDK 15

[Cy]

Thank you for considering my problem!

I have maybe have seen a working Micro SD card with the 52840DK, but have not been able to produce it on my board. 52832. I am using the FatFs from SDK 15.3 and merely change the pins to reflect my hardware: sck pin4, miso pin3, mosi pin5, CS pin6. I have tried to alter the miso pullup in the sdk_config, 0,1,3, with no results. I see the signals are toggling the lines except for miso, no card. I have read a few of the problem post about the fatfs over the years and throughout the SDKs, huh! 

[Einar Thorsrud]

Hi,

How have you connected the SD card? Could it be that you have crossed the MISO and MOSI pins?

[Cy]

Well, that is certainly possible, the micro SD holder is prominent on the left. The connection from the top as I understand it is: P2, P3, GND, P4, 3V3, P5, P6 and P7. When I the card is engaged the notch is toward the bottom of the image. The uSD card would then be attached as follows: 

[Cy]

I was writing to the uSD card with 8Mhz and the card was a class 4 device, meaning it is rated at 4MHz writes.