??? 11/13/09 17:39 Read: times |
#170763 - no oscilloscope :( Responding to: ???'s previous message |
hate to say this,but i don't have an oscilloscope. as i have already said,the blinking is irregular,which hints to a possible false triggering. |
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 |