| ??? 10/12/05 16:52 Read: times |
#102268 - outside of 50 sec slot Responding to: ???'s previous message |
After 50 sec slot the timer run bit is cleared (will be set only when next falling edge interrupt is given at P3.2 of AT89C51 for next cycle of operation) ,and the timer is reset.The registers R0 & R1 (for calculating time in Sec) are loaded with their initial values.
Then few ports of PORT1 is set (to drive photoMOS relays)and wait for the interrupt at port3.2(to start next cycle) nothing else.. |
| Topic | Author | Date |
| Doubts regarding AT89C51 Port Usage | 01/01/70 00:00 | |
| Answers | 01/01/70 00:00 | |
| your suggestions were useful | 01/01/70 00:00 | |
| Central ground star point | 01/01/70 00:00 | |
| doubts | 01/01/70 00:00 | |
| Why using an interrupt? | 01/01/70 00:00 | |
| use an interrupt for debounce, not key | 01/01/70 00:00 | |
| This is what iam going on with | 01/01/70 00:00 | |
| Why even consider sleep mode for a machi | 01/01/70 00:00 | |
| can RC network eleminate bounce | 01/01/70 00:00 | |
| nope, you will be hanging at the noise m | 01/01/70 00:00 | |
| Debounce | 01/01/70 00:00 | |
| Possible, but... | 01/01/70 00:00 | |
| What else does your program? | 01/01/70 00:00 | |
| outside of 50 sec slot | 01/01/70 00:00 | |
| do I get it right | 01/01/70 00:00 | |
| yes | 01/01/70 00:00 | |
| ttthhattsss all fffolks | 01/01/70 00:00 | |
| here is my code | 01/01/70 00:00 | |
| I did not ask that | 01/01/70 00:00 | |
Avoid my previous post "here is my code" | 01/01/70 00:00 |