Table of Contents


The Secure Digital Host (SD Host) controller on CC3200 provides an interface to standard SD memory cards in 1-bit transfer mode and handles the SD protocol and data packing at the transmission level with minimum CPU intervention.

Application details

This application showcases the basic use case of initializing the controller to communicate with the attached card, reading and writing an SD card block using the internal controller buffer via DriverLib API(s). The demo includes extracting the card capacity, capacity class and SD version information and displaying it on the UART terminal. The demo also reads the first block from the attached card and displays it on the terminal.

Shown is the BOOSTXL-SHARP128 display and micro SD card reader connected to the CC3200 Launchpad.