1. the DEMO9.EXE can only be executed under 7188
2. demo for read/write Flash ROM(address range: 0xE0000 to 0xEFFFF)
3. ERASE:erase 1 sector of FlashRom --> all data on the sector will be 0xff
4. D offset: dump 64 bytes data from offset.
5. CR(ENTER): Dump next 64 bytes.
6. U:Dump previous 64 bytes.
7. W offset(Hex) data(Hex):write data to offset.