QNX RTOS v4 Knowledge Base
QNX RTOS v4 Knowledge Base
| Title |
Octagon System 5066 CPU Watchdog Timer |
| Ref. No. |
QNX.000010305 |
| Category(ies) |
Development |
| Issue |
How to control the Octagon Systems 5066 CPU's watchdog timer under QNX4?
|
| Solution |
5066's watchdog timer is controlled via port 20Ch.
Setting bit 6 (40h) to 1 enables watchdog, resetting this bit back to 0 disables it.
The program must be linked with -T1 and run as root.
Comment:
This port in not mentioned in the 5066 docset, Octagon docs describe only the 5066 BIOS API real mode calls which cannot be used in
protected mode. |
|
