| ??? 11/13/09 17:22 Read: times |
#170760 - Have you looked at all signals? Responding to: ???'s previous message |
Siddharth Das said:
Per Westermark said:
Siddharth Das said:
Any solutions? No, but a suggestion. Rewrite your post, and supply much more information. Much, much more. What interrupts? What hardware? What software? What measurements performed? Anything else relevant to the problem? Anything else I should mention? Yes. How fast does the LED blink? Regular or irregular frequency? Have you measured on the signal with an oscilloscope? Are you sure that the signal is well below the low level or well above the high level at all times when no IR is detected? No noise or slightly out-of-bounds voltages? What does the source code look like? if the LED blinks at a constant frequency, then you may suffer from watchdog resets. Have you measured the supply voltage? Good voltage? Have you looked with a scope - stable voltage? |
| 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 |