Chapter 3 Software Configuration
PPC-7365F USER
′
S MANUAL
Page:3-9
3-8. TOUCH SCREEN DRIVER UTILITY (OPTIONAL)
To install, kindly refer to the readme.txt file found each separate file of the
Driver Disc.
3-9. USB CF CARD DRIVER UTILITY (OPTIONAL)
To install, kindly refer to the readme.txt file found each separate file of the
Driver Disc.
3-10. WATCHDOG TIMER CONFIGURATION
This board has watchdog timer function for monitoring whether the system is
still work or not after a period of time. The user can select watchdog timer
to system reset or NMI (Non Maskable interrupt) depending on the jumper
set in “Reset/NMI/Clear Watchdog Selection” found in chapter 2. This is
defined at I/O port
443H
. When you want to enable the watchdog timer,
please write I/O port
443H
, and then the system will either reset itself or
perform the NMI function. Likewise, when you want to disable the function,
write I/O port
441H
, the system will run the command to stop the Watchdog
function.
In PPC-7365F watchdog function, you must write your program so when it
writes I/O port address 443 for enable watchdog and write I/O port address
441 for disable watchdog. The timer
'
s intervals have a tolerance of 25% so
you should program an instruction that will refresh the timer about every
second.
The following program shows you how to program the watch timer in your
program.
Watchdog enable program:
MOV AX, 000FH (choose the values you need; start from 0)
MOV DX, 443H
OUT DX, AX
Watchdog disable program:
MOV AX, 000FH (this value can be ignored)
Summary of Contents for PPC-7365F
Page 1: ...USER S MANUAL PPC 7365F VIA Eden Low Power 15 Panel PC System PPC 7365F M1 ...
Page 9: ...Chapter 1 Introduction PPC 7365F USER S MANUAL Page 1 3 1 2 CASE ILLUSTRATION ...
Page 91: ...Appendix A System Assembly Page A 4 PPC 7365F USER S MANUAL STEP 2 Wall 374 2 mm 271 2 mm ...
Page 96: ...Appendix B Technical Summary Page B 2 PPC 7365F USER S MANUAL BLOCK DIAGRAM ...
