| ??? 10/10/05 07:01 Read: times |
#102150 - doubts Responding to: ???'s previous message |
i am using p3.2 of AT89c51 to receive a falling edge signal using a push button switch.Hence an interrupt0 edge flag is set in IE0.Iam using this bit set(in IE0) to run Timer0. But iam unaware of the exact delay that is to be produced in using the bit set of IE0 to run T0..so that bounce is avoided.Kindly help me. Another doubt is ... Both in assembly and C.. How the codes are written in the address of ISR's (Iam using Keil software) Eg: When an interrupt edge flag (IE0) is set, the processor clears it and vectors to interrupt service routine(ISR)located at program address 0003h. here, if i need to write some code in this ISR address(0003h), how should i do that . Kindly tell me for both in Assembly and C. |
| 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 |