理由: 1.我曾经测试过FLASH的读写,发现数据的低字节是储存到低地址,高字节储存到高地址。 2.datasheet上的说明: The program memory is addressed in bytes. Instructions are stored as two bytes or four bytes in program memory. The Least Significant Byte of an instruction word is always stored in a program memory location with an even address (LSB = 0).