Hello,   This is a port of ChaN Petit FatFS SD library targeted to low RAM microcontrollers and offers a minimal FAT implementation, with limited write support. For more details see http://elm-chan.org/fsw/ff/00index_p.html   A lot of credits goes to the main contributors to this topic http://forum.43oh.com/topic/1427-petitefs-fatfs-sdcard-usci-code/     Because this library makes use of the SPI library included in Energia it  works for both MSP430 and Stellaris launchpads.   With MSP43