| ??? 11/13/09 21:52 Read: times |
#170782 - Doesn't the '324 have an OC output? Responding to: ???'s previous message |
I'd definitively go for _some_ pullup. I know the '52's port should provide enough, but the environment may be excessively noisy, and why take the risk.
(Unless I am wrong and the '324 output is a push-pull). JW |
| Topic | Author | Date |
| interrupt trouble | 01/01/70 00:00 | |
| Much more info needed | 01/01/70 00:00 | |
| more info | 01/01/70 00:00 | |
| Have you looked at all signals? | 01/01/70 00:00 | |
| yet more info | 01/01/70 00:00 | |
| Some hints | 01/01/70 00:00 | |
| No | 01/01/70 00:00 | |
| Doesn't the '324 have an OC output? | 01/01/70 00:00 | |
| Very good | 01/01/70 00:00 | |
| Debugging time! | 01/01/70 00:00 | |
| no oscilloscope :( | 01/01/70 00:00 | |
| then try 'selective grounding' | 01/01/70 00:00 | |
| This might be the reason | 01/01/70 00:00 | |
| Dangerous approach! | 01/01/70 00:00 | |
| Correct | 01/01/70 00:00 | |
| hysteresis? | 01/01/70 00:00 | |
| aka positive feedback | 01/01/70 00:00 | |
Dead gap | 01/01/70 00:00 |