I have looked over the SparkFun_SD_Demo and I am confused on what I should do.
SparkFun_SD_Demo says :
* SD card attached to SPI bus as follows:
** MOSI - pin 11
** MISO - pin 12
** CLK - pin 13
** CS - pin 4
On the Ethernet Shield, CS is pin 4. Note that even if it's not
// used as the CS pin, the hardware CS pin (10 on most Arduino boards,
// 53 on the Mega) must be left as an output or the SD library
// functions will not work.
// Chip Select pin is tied to pin 9 on the SparkFun CAN-Bus Shield
I read this and wonder What pin is CS? 4,10, 53, or 9???
I assume this is where my problem is.
From what I have read, on the Mega the pins are as followed
Do I have to patch a line for each of these?
Should I patch a line from 9 on the CAN BUS Shield over to 53 on the mega?
Can someone explain the best way to do this?