Introduction - If you have any usage issues, please Google them yourself
* To specify a sector write 128 bytes of data (by My_Write_Data () function arbitrary structure), read back to the DATA [] array
* Program execution only once, if successful write SD card, Launchpad G2 board LED1 red light will illuminate.
* Check in CCS send SD card read back DATA [] array, check whether the correct read and write SD card.
* Hardware connection: plug in 2G (inclusive) capacity TF card, Launchpad G2 board only plug in jumpers LED1 s.