| ??? 08/25/08 08:17 Read: times |
#157722 - keyscan Responding to: ???'s previous message |
Key_scan() is very strange ,must set some flag , which indicate that some key is pressed. Probably Your default Key_scan() is not wrong, but processor stays inside until key is pressed.
Also: what means "interrupt 2 " - INT2 or BANK2 ? |
| 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 |