| ??? 10/18/05 14:31 Read: times |
#102576 - frequency Responding to: ???'s previous message |
The original question was if the ISR occurs at a 25milisiemens :-) rate. The means to detect it should be a blinking LED (a complicated one, so I imagine a series of heterojunctions, maybe with integrated gigahertz frequency amplifier :-) ) so what I would normally do is a toggle in the ISR; the frequency of blinking would be 20Hz but Iztok might have "measured" it and he might have expected 40Hz based on 25ms interrupt rate... that would be a trivial mistake I know but I asked, one never knows....
Of course the error might be of much more complicated nature; so I would suggest to remove all the bells and whistles which make the LED blinking being complicated, and do the simple toggle in the ISR, and see if it IS 20Hz... Then gradually reinsert the bells, finally the whistles... Jan Waclawek |
| Topic | Author | Date |
| Please correct me | 01/01/70 00:00 | |
| you are, as far as I can see not enablin | 01/01/70 00:00 | |
| 25 mS? | 01/01/70 00:00 | |
| Timer0 | 01/01/70 00:00 | |
| how do you make a blibking LED "complica | 01/01/70 00:00 | |
| Led | 01/01/70 00:00 | |
| the question was show the ISR so | 01/01/70 00:00 | |
Complicated LED blink challenge | 01/01/70 00:00 | |
| seconds = s | 01/01/70 00:00 | |
| easily | 01/01/70 00:00 | |
| LED blinking | 01/01/70 00:00 | |
| I do not know how frequency detection be | 01/01/70 00:00 | |
| frequency | 01/01/70 00:00 | |
| I have one :-) | 01/01/70 00:00 | |
| true for incandenscent, but not for LED | 01/01/70 00:00 | |
| Led times | 01/01/70 00:00 | |
| So what is the problem now? | 01/01/70 00:00 | |
| How do ypo know that the LED you do not | 01/01/70 00:00 | |
| RTC test | 01/01/70 00:00 |