Adafruit Datalogging shield assembled RTC, with MEGA ADK

Using Arduino Storage
1

Hi
I have

  • one Arduino MEGA ADK
  • one Adafruit Datalogging shield assembled + RTC, with MEGA ADK (not stacked)
  • one SD card (formatted FAT with SDFormatterv4, 1 GB)
  • I am using jumpers (so I am free of connections, no stacking)
  • one OLED 4x20 display from NHD (working perfectly)
    I have read documents and tutorials (some) on SD datalogging
    The RTC is using SCL, SDA (I2C) and is working perfectly (display on OLED). +5V & GND are OK
    Now I try to learn the datalogging (SD)
    I have linked (jumpers)
    Mega Shield
    50 MISO 12
    52 SCK 13
    51 MOSI 11
    53 SS 10
    4 for CS 4
    I have loaded the sketch "cardinfo updated 9 apr 2012)
    The serial terminal is printing the error message (repeatedly)
    Please help me on that problem
    Regards
    Louis
    (France)
2

The serial terminal is printing the error message (repeatedly)

What error message?

3

Hi
The error message from Cardinfo sketch:
while (!card.init(SPI_HALF_SPEED, chipSelect)) {
Serial.println("initialization failed. Things to check:");
Serial.println("* is a card is inserted?");
Serial.println("* Is your wiring correct?");
Serial.println("* did you change the chipSelect pin to match your shield or module?");
}
Good SD card iserted
wiring correct ?? not sure
CS pin OK ?? not sure
Louis

4

Links to the hardware you have are better than vague descriptions.