1. erase all flash: 
./fprg erase ttyS0

2. erase sectors:
./fprg speed 38400 erase sector 0,1,2,3,4,5,6,7,8,9 ttyS0

3. read flash, start address=0, end address=400000, output 
file=read.bin, tty device=/dev/ttyS0:  

./fprg speed 38400 read size 400000 output read.bin ttyS0

4. write flash, input file = rom.bin, tty device = /dev/ttyS0,
start speed 38400, file transfer speed 57600:

./fprg write input rom.bin hash speed 38400 write speed 57600 ttyS0

5. More complex example. Erase flash and write Linux kerner (input file 
zImage) with offset 0, and jffs2 file system (file jffs2.img) with 
offset 0xA0000.

echo ERASE FLASH 
./fprg erase ttyS0
echo WRITE Kernal zImage 
./fprg write input zImage hash speed 38400 write speed 57600 ttyS0

echo WRITE JFFS2 Image 
./fprg write input jffs2.img hash speed 38400 write speed 57600 offset 0xA0000 ttyS0
