在EVM6657的用户手册中看到了如下一段话：
There are two banks in the I2C EEPROM which respond separately at addresses 0x50 and 0x51. These banks can be loaded
with demonstration programs. Currently, the bank at 0x50 contains the I2C boot code and PLL initialization
procedure and the bank at 0x51 contains the second level boot-loader program. The second level boot-loader
can be used to either run the POST program or launch the OOB demonstration from NOR flash memory.
那I2C还能引导nand flash中的用户程序吗？
