前一段时间在公司做SD卡的以驱动程序，整理了不少东西，包括SD卡的完整规范、驱动工作原理、完整技术方案和自己调试用的参考程序，希望对大家有所帮助-Some time ago in the company to do SD cards to drivers, finishing a lot of things, including the full specification of SD cards, driver works, a complete technical solution and its own reference for debugging process, want to help everyone