Has anyone gotten SD or uSD card access to work with the Mega? I just tried a Sparkfun SD shield on my Duemilanove and no luck. I've also tried a DFRobot Arduino SD Data log module on my Mega and not a squeek! The Sparkfun examples compile but didn't work with either configuration, uSd shield on my Duemilanove or the DFRobot module on my Mega. I've remapped the SS,MOSI, MISO and SCK pins on the Mega to 53, 51, 50,and 52 respectively. It's not an SPI issue, as I've gotten my MPL115A1 barometer and uMFPU-V3 floating point co-processor to work (cool chip by the way)
I'm building a "tricorder"/navigation device thingy. I want to log way points, temperature, humidity, altitude, speed, distance covered. So far I have my HMC6352, RTC1307, GPS, one of those HUGE 160x128 LCD screens Sparkfun sell and a groovy custom keyboard I designed and built. I am also adding an XBee module to communicate with a cut down version of the main unit that will be attached to my dogs. The "satellite" units will just have a GPS, Mega and XBee module. All of this stuff is working, except the damn SD card!
Can anyone help?
What am I doing wrong?
If all alse fails I'll go for a Processing scetch running on my eee 701 logging data. All of that