| ??? 11/14/09 13:39 Read: times |
#170803 - Correct Responding to: ???'s previous message |
I agree with Andy, IT is a dangerous approach.
But there are times, when you have to let go those problems, because, you don't have the time to understand and clear the problem. It was (and IS) not worth to put the effort and come out with the answer (as far as I am concerned). But if anybody wants to put in the effort and has the time to investigate it, then it is upto them. I am ready to discuss, as this happened many years ago. But I had it clearly bottom-lined, that never-ever to use Opamp as a comparator to trigger an INTx of any CPU (and that too without hysteresis). |
| 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 |