| ??? 12/25/06 13:24 Read: times |
#130093 - Test Zero Cross Responding to: ???'s previous message |
Dear Jerson
O.K.This is how I TEST my zero crossing detector at external interrupt 0.This is not the actual RC5_Dimmer code but even then it hangs in presence of RC5! tzc: using 1 clr ex0 jnb p3.2,tzc inc tzcntr cjne tzcntr,#100,exitzc mov tzcntr,#0 inc tzcntr00 mov a,tzcntr00 cpl a mov p2,a exitzc: setb ex0 using 0 reti I can get the zero cross counting nicely on eight LEDs on Port2.But my point is Rc5 consists of 14 bits of 1.728mS each so total 24.192 milliSeconds whereas my AC Mains at 50Hz will cross zero every 20 milliSeconds. For receiving RC5,in the ExtInt1 ISR,I store the received bits in 30 consecutive ram spaces,toggle a Flag and return the interrupt in a hurry.I do the analysis of received buffer in the main loop if the flag is set i.e. I poll the Flag along with polling the switches. With best Regards A.S.Rudra |
| Topic | Author | Date |
| Multiple Interrupts with Infrared RC5 | 01/01/70 00:00 | |
| Must be the technique you are using | 01/01/70 00:00 | |
| Test Zero Cross | 01/01/70 00:00 | |
| Couple of questions | 01/01/70 00:00 | |
| Do you disable interrputs when you are in ISR? | 01/01/70 00:00 | |
| use priority | 01/01/70 00:00 | |
| Peter,Please clarify | 01/01/70 00:00 | |
| RC5 within interrupt | 01/01/70 00:00 | |
| RC5 polling | 01/01/70 00:00 | |
| Quality workmanship... | 01/01/70 00:00 | |
| workmanship | 01/01/70 00:00 | |
| Dimmers | 01/01/70 00:00 | |
| Russel Please | 01/01/70 00:00 | |
| Some more points | 01/01/70 00:00 | |
| Dimmers | 01/01/70 00:00 | |
| that does not make sense | 01/01/70 00:00 | |
| Divide and Rule | 01/01/70 00:00 | |
instead of using your first choice, you state: | 01/01/70 00:00 | |
| C sample code | 01/01/70 00:00 | |
| Let me assimilate your code first | 01/01/70 00:00 | |
| .LST? | 01/01/70 00:00 | |
| About the 4n35 | 01/01/70 00:00 | |
| Thanks Jerson ,I corrected the picture | 01/01/70 00:00 | |
| Here | 01/01/70 00:00 | |
| F629FAN Schematic | 01/01/70 00:00 |