| ??? 01/13/06 14:15 Read: times |
#107285 - i dont have to stick to P2.2 Responding to: ???'s previous message |
The optical encoder is connected to port 2 pin 2 and goes high when triggered,i was thinking maybe i should use port3 pin 2(INT0\bar) and wont have to use the timer as a counter but i fall short on how to use this external interrupt.
If the interruted does occur i need to incerment r1 so when i return from the subroutine i can display it on a 7 seg display. For example P2.2 goes high 6 times in 5 seconds r1 will read 6 so later i can display the content R1. |
| Topic | Author | Date |
| timer/ counter | 01/01/70 00:00 | |
| clarify | 01/01/70 00:00 | |
| To rephase my Question | 01/01/70 00:00 | |
| what is "the event counter" | 01/01/70 00:00 | |
| Event counter explained | 01/01/70 00:00 | |
| I know what the datasheet (the "bible") | 01/01/70 00:00 | |
| Try prioritizing | 01/01/70 00:00 | |
| About Prioritizing | 01/01/70 00:00 | |
| Priority | 01/01/70 00:00 | |
| Should of been original question sorry ! | 01/01/70 00:00 | |
| a few comments | 01/01/70 00:00 | |
| i dont have to stick to P2.2 | 01/01/70 00:00 | |
| never us a register for a dedicated purp | 01/01/70 00:00 | |
| Thanks for tip | 01/01/70 00:00 | |
| you do not need that | 01/01/70 00:00 | |
thanks | 01/01/70 00:00 |