pic mcu code:This application note describes the design and implementation of a USB Mass Storage Device (MSD) using a Secure Digital card, which should prove useful to developers of USB mass storage solutions. This application may be used as

基于mega8系列单片机D12的开发实例【含源码】，含USB SD卡读卡器设计及源码。-Mega8 series of single-chip based on the development of D12 containing source】 【example, USB SD card reader with the design and source code.

SD-USB SPI读写方案开发c代码~-SD-USB read and write SPI program development of C code