| ??? 11/19/04 02:30 Read: times |
#81490 - pushbutton stuff Responding to: ???'s previous message |
Normally I wouldn't use an external interrupt for pushbutton input except if I needed to wake the micro up from a sleep. Usually I would have a timer set up to interrupt at say 10mS. Apart from using this for task scheduling, I would have it read the push buttons. With a little code you can count the number of ticks the button has been held and when it has been released. I've used something similar for an up/down button for setting values. The longer the button is held, the faster the value increments/decrements. If you use the external interrupt for waking the cpu up, disable the external interrupt after power up and have the timer isr poll the pushbuttons. |
| Topic | Author | Date |
| ON-OFF - Press and Hold for 2nd Function | 01/01/70 00:00 | |
| Change time | 01/01/70 00:00 | |
| Change time | 01/01/70 00:00 | |
| Duh - typo sorry | 01/01/70 00:00 | |
| Use a timing function | 01/01/70 00:00 | |
| not counter - intuitive | 01/01/70 00:00 | |
| not counter - intuitive | 01/01/70 00:00 | |
| More info needed | 01/01/70 00:00 | |
pushbutton stuff | 01/01/70 00:00 |