APPLICATION OF SD CARD IN MASS-STORAGE TESTING SYSTEM DESIGN

The high density data storage method is analyzed.Then the paper introduces a scheme that SD card is applied to the mass-storage testing system.The principle of the CH376 working as Master of SD card is described in detail.Corresponding circuit diagram and software flow of the mass-storage testing device are described.The data acquired in SD card is easy to upload to computer with USB interface.The portability and reliability are typically characteristic of the design.It will expand the usage of storage testing device.