Project Description
Firmware source for the memXpand project. memXpand is a piece of hardware based on the TI Stellaris LM3S3748 MCU. It offers external memory storage for the TI graphing calculators (TI86,TI89, etc). The HW will support USB HOST, USB device (mass storage class), and SD cards.
Have you ever loaded your calculator with games and useful programs, only to have your math or science teacher erase your memory before a test, leaving you with no games to play for the rest of the school day? Do you get tired of transferring games to your calculator while tethered to the computer? If you answered yes to any of the above questions then this project is for you. Once completed, the firmware developed by this project can be used to program the TI Stellaris LM3S3748 MCU on a memXpand device, so that games and other TI compatible files can be carried around with you on an MMC card, SD card, or USB memory stick.