DM642flash驱动编写,flash用的是S29AL032D70TFI000，程序中包括了读写函数，命令配置函数等-The preparation of DM642flash drive, flash is used S29AL032D70TFI000, procedures include reading and writing function, the command function, such as configuration

此源码为 flash读写操作，以1M为基本单元的读写操作-The source code for the flash read and write operations, to 1 m as the basic unit of read and write operations