C. Flash Rom Version Up Method - Sharp AR-BC320 Service Manual

C. Flash ROM version up method

(In the case of PCU ROM, ICU ROM, Operation control ROM, Scanner control ROM, FAX control ROM)
There are following two methods of Flash Rom version up.
1) By connecting a computer with the ICU PWB, the program
data of Flash ROM is written from the computer to the Flash
ROM on the ICU MAIN PWB.
This method has the following two variations.
a) All data in the PWB programs and the Flash ROM copy
(ROM-ROM) program are written: (Making of the source
ROM)
In this method, the Flash ROM on the writing side needs
capacity of 32Mbit x 2
(In order to make a source ROM, the capacity of the Flash
ROM must be as shown above.)
b) Only each PWB program is written.
(1)-a Method of writing the program data from a PC to the ICU MAIN PWB Flash ROM
(Making of source ROM)
The program for each PWB and the Flash ROM copy program are copied into the Flash ROM
on the Write side socket.
LEVEL
CONVERTER
ICU MAIN PWB
xxxxxxx_src.pgm
(1)-b Method of writing the program data from a PC to the ICU MAIN PWB Flash ROM
The program for each PWB is copied to the Flash ROM on the Write socket.
ICU MAIN PWB
xxxxxxx_d.pgm
(2) Method of copying with two Flash ROM sockets on the ICU MAIN PWB
The program for each PWB in the Flash ROM (source ROM) on the Read socket is
copied to the Flash ROM (target ROM) on the Write socket.
ICU MAIN PWB
PC
New Version Program DATA
(ICU,PCU,OPE,SCN,FAX)
(xPcuxxx_src.pgm/xIcuxxx_src.pgm/
xOpexxx_src.pgm/WScnXXX_src.pgm/
Serial cable
xPcuxxx_d.pgm/xIcuxxx_d.pgm/
xOpexxx_d.pgm/WScnXXX_d.pgm
LED 3
New Version Program DATA
LED 2
(ICU,PCU,OPE,SCN,FAX)
Copied from PC
LED 1
ICU Program DATA
Serial I/F connector DATA flow
LED 3
LED 2
New Version Program DATA
(ICU,PCU,OPE,SCN,FAX)
Copied from PC
LED 1
ICU Program DATA
Serial I/F connector DATA flow
LED 3
New Version Program DATA
LED 2
(ICU,PCU,OPE,SCN,FAX)
Copying between
Flash ROM ' s
New Version Program DATA
(ICU,PCU,OPE,SCN,FAX)
LED 1
DATA flow
AR-BC320 ROM VERSION UP 12 - 2
2) Two Flash ROM sockets on the ICU MAIN PWB are used to
copy the program in the source ROM to another Flash ROM.
(It normally takes 30 to 60 sec.)
In this method, the Flash ROM (source ROM) made by the
method of using a computer and writing the program to the
Flash ROM is required.
(Note)
To make version up of several Flash ROM's of several machines,
it is the most effective to make a source ROM by the method of 1)
-a) and copy the data to several Flash ROM's by the method of 2).
Flash ROM Copy
execution program
(For ROM to ROM)
Download program
(Mainte.exe)
Write socket of ROM
Flash ROM B
Flash ROM Copy
(32Mbit x 2)
Execution program
(For ROM to ROM)
Read socket of ROM
Flash ROM A
Empty
(32Mbit x 2)
Program execution
Write socket of ROM
Flash ROM D
(8/16/ 16Mbit x 2
Empty
32Mbit x 2)
Read socket of ROM
Flash ROM A
Empty
(32Mbit x 2)
Program execution
Write socket of ROM
Flash ROM C
(8/16/ 16Mbit x 2
Empty
32bit x 2)
Read socket of ROM
Flash ROM Copy
Execution program
(For ROM to ROM)
Flash ROM B'
(32Mbit x 2)
Program execution