Subject:
|
IRQ and XIRQ pins on handyboard
|
Newsgroups:
|
lugnet.robotics.handyboard
|
Date:
|
Fri, 27 Jul 2001 23:13:34 GMT
|
Viewed:
|
1682 times
|
| |
|
|
Hello everybody,
Is it a reason why the IRQ pin of the 68HC11 is not available.
On the schema, seems that this pin is always up.
If I look in the pcode.asm, the interrupt vector for IRQ ($BFF2) is set to
RTI (BadInt)
So, if I need to link a device to the HB and intercept a signal from this
device (can be a device signaling when he is ready or something else...),
how can I do this.
Of course, I can make a loop or add a routine in the System Interrupt but it
is not really what I want to do.
Thanks in advance.
Jean Dufrasne
|
|
1 Message in This Thread:
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
