| ??? 02/14/05 10:01 Read: times |
#87334 - Ext Interrupt - Transition Activated |
Hi - excuse the noddy question (I read the tutorial and searched the message board to save myself from being flamed)
I have an enxternal interrupt which is transition activated but it is activated on a 0 - 1 transition. While this seems to be rather neat feature, I want to have my interrupt activate on a 1 - 0 transition, ie when I pull the input low the interrupt fires Any ideas? My microcontroller is a wee AT89C2051. I can't find anywhere where you set the direction of the interrupt transition, and in fact didn't even know that this was possible. Regards Marshall Brown |
| Topic | Author | Date |
| Ext Interrupt - Transition Activated | 01/01/70 00:00 | |
| Turn a falling edge into a rising edge? | 01/01/70 00:00 | |
| Did you read the | 01/01/70 00:00 | |
| both interrupts possible | 01/01/70 00:00 | |
| I use this | 01/01/70 00:00 | |
| I use PCA | 01/01/70 00:00 | |
| not on AT89C2051 ! | 01/01/70 00:00 | |
| who forces him | 01/01/70 00:00 | |
| Who forces? The circumstances. | 01/01/70 00:00 | |
| New Zealand | 01/01/70 00:00 | |
| Yes, the perspective! | 01/01/70 00:00 | |
| because | 01/01/70 00:00 | |
| I also use AT89C51RC2 | 01/01/70 00:00 | |
| little boy | 01/01/70 00:00 | |
| That's why not | 01/01/70 00:00 | |
glady | 01/01/70 00:00 | |
| Don't underestimate the good old USA | 01/01/70 00:00 | |
| two views | 01/01/70 00:00 | |
| Two academic questions | 01/01/70 00:00 | |
| suggestions | 01/01/70 00:00 | |
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| glitchy? | 01/01/70 00:00 |