| ??? 08/25/08 11:35 Read: times |
#157735 - ok thanks alot Responding to: ???'s previous message |
ok thanks alot everybody.
i guess i made a huge mistake by trying to use the same ISR for low to high and high to low transitions on P3.2 which cannot happen cos it only identifies the low level. so can anybody suggest any solution for that?should i add some inverter or apply the low to high transition to the control output signal directly instead of through the MC? thanks to all for all the help. |
| Topic | Author | Date |
| pls help....8051 external interrupts | 01/01/70 00:00 | |
| show definition of "a" variable | 01/01/70 00:00 | |
| definiton : sbit a=P3^2; | 01/01/70 00:00 | |
| Need more information | 01/01/70 00:00 | |
| the entire code | 01/01/70 00:00 | |
| keyscan | 01/01/70 00:00 | |
| How the LED are connected? | 01/01/70 00:00 | |
| One tip | 01/01/70 00:00 | |
| P3.2= iNT0 | 01/01/70 00:00 | |
| P3.2= INT0 | 01/01/70 00:00 | |
| pin 3.2 | 01/01/70 00:00 | |
| P3.2= INT0..1 | 01/01/70 00:00 | |
| Obvious Reason | 01/01/70 00:00 | |
| time duration | 01/01/70 00:00 | |
| mistake | 01/01/70 00:00 | |
| ok thanks alot | 01/01/70 00:00 | |
| ? | 01/01/70 00:00 | |
| GATE0/1 ? | 01/01/70 00:00 | |
| no | 01/01/70 00:00 | |
| try | 01/01/70 00:00 | |
| Debounce maybe? | 01/01/70 00:00 | |
| Solution | 01/01/70 00:00 | |
| interrupt flag bit clear | 01/01/70 00:00 | |
Detecting Both Edges - A very old trick | 01/01/70 00:00 |