Sd card not found on Mega2560 about sdfat-beta

[greiman]

I connected an Adafruit MicroSD breakout to these pins and ran the AvrAdcLogger example on a Mega2560 without modification.

Here is the output:

Type any character to begin.

Unused stack: 6923

type:
b - open existing bin file
c - convert file to csv
l - list files
p - print data to Serial
r - record ADC data

Opening: AvrAdc00.bin
Allocating: 100 MiB
Sample pins: 0 1 2 3 4
ADC bits: 10
ADC clock kHz: 500
Sample Rate: 5000.00
Sample interval usec: 200.00
Logging - type any character to stop

Truncating file
Max write latency usec: 1068
Record time sec: 12.306
Sample count: 61530
Overruns: 0
FIFO_DIM: 96
maxFifoUse: 2
Done

[drmpf]

Odd, I am using the same Adafruit breakout board.
I will try again.

[drmpf]

OK found the problem.
You need to connect MOSI -> DI and MISO -> DO on adafruit board.