Programming example:
/* Inline assembly code for Borland C++ 3.1 */
asm {
mov
ax,0fd02h
mov
dx,0ffffh
int
17h
}
Disable watchdog
Function: fdh
Subfunction: 03h
Purpose:
To disable the watchdog.
Calling registers:
AH
fdh
AL
03h
DX
ffffh
Return registers:
None
Comments:
This function disables the watchdog. Once the
watchdog is enabled, it has to be strobed at a
period greater than the timeout period or until
the watchdog is disabled. Otherwise, a system
reset will occur.
Programming example:
/* Inline assembly code for Borland C++ 3.1 */
asm {
mov
ax,0fd03h
mov
dx,0ffffh
int
17h
}
Hardware reset
The reset switch (Switch SW1) allows you to reset the system without turning off
the power. This provides a more complete reset than the <CTRL><ALT><DEL>
method. Depressing this button pulls the circuit to ground and resets the system.
The RESET command accomplishes the same thing as the reset button. Refer to
the component diagram in the Quick start chapter for the location of the reset
switch, and to
Appendix B, Software utilities
, for information on the Reset utility.
WARNING!
When using COM1 as the console, the <CTRL><ALT> <DEL>
commands on the host system keyboard only reset the host system.
Use the RESET command to issue a hardware reset on the 5266.
86
Содержание 5266
Страница 18: ...Figure 2 1 5266 component diagram top 18 ...
Страница 19: ...Figure 2 2 5266 component diagram bottom 19 ...
Страница 20: ...Figure 2 3 5266 dimensions inches 20 ...
Страница 21: ...Figure 2 4 5266 dimensions mm 21 ...