System Installation
ROBO-638 User’s Manual
3-6
3-4 M-system Flash Disk
ROBO-638 reserves one 32-pin DIP sockets for installing M-system Flash disk
from 2MB to 144MB. This operation structure is running with pure ISA-bus
without PnP (Plug and Play) function. Before installing, make certain that
memory window address jumper setting is set on right position to prevent
unworkable system due to memory mapping I/O resource conflict. Do remember
to follow DOC (DiskOnChip) installation procedure. Otherwise, the Flash chip
is possible to be burned out due to incorrect installation.
Installing DOC
Align the DOC with pin holes on the socket. Make sure that the notched corner
or dot mark (pin 1) of DOC corresponds to notched corner of the socket. Then
press the DOC gently until it fits into place. If installation procedure is correct,
the Flash disk can be viewed as a normal hard disk to access read/write data.
WARNING : Please ensure that your DOC is properly inserted. Placing
the DOC in reverse will cause severe damage to it.
The ROBO-638 will instruct user to install
and utilize DOC for practical
application. If you want to boot from this Flash disk, it is necessary to refer to
the application note from M-system. You can easily get relatively advanced
information or utility from M-system shipping package (such as product manual)
or Web-site
http://www.m-sys.com
.
3-5 Watch Dog Timer Programming
There are two manners to activate the WDT (Watch-Dog Timer) function. One
is to utilize hardware jumper setting and programmed by software command.
Second one is to program super I/O W83977 chip to start WDT counting. It is
recommended to use first methodology. The second choice is very difficult and
complicated.
An optional two-port Watch-Dog Timer (WDT) is provided on ROBO-638.
This function can be enabled by jumper setting and software trigger, a system
reset will be generated unless the CPU triggers the timer periodically within
time-out period. This allows the system to restart in an orderly way in case of
any abnormal condition is found.