STM32的GPS开发历程，方便学习和开发STM32芯片，对自主学习有很大帮助-The GPS STM32 development process, facilitate learning and development STM32 chip, independent study of great help

SD程序基于STM32，底层的驱动程序已被写入，并有notes.it值得初级开发者学习。-SD program based on STM32, the underlying driver has been written, and there is a notes.it worthy of the primary developers to learn.