| ??? 03/13/01 23:41 Read: times |
#9975 - RE: Peter |
Hi Peter,
thanks for your suggestion. That means I still need 14 I/O from AT89C52 to scan the keyboard. Next, should I scan the key regularly or shoudl I use interrupt to do scan it ? Best Regards Andy |
| Topic | Author | Date |
| AT89C52 Circuit Design | 01/01/70 00:00 | |
| RE: AT89C52 Circuit Design | 01/01/70 00:00 | |
| RE: AT89C52 Circuit Design | 01/01/70 00:00 | |
| RE: AT89C52 Circuit Design | 01/01/70 00:00 | |
| RE: AT89C52 Circuit Design | 01/01/70 00:00 | |
| RE: Peter | 01/01/70 00:00 | |
| RE: Peter | 01/01/70 00:00 | |
| RE: AT89C52 Circuit Design | 01/01/70 00:00 | |
| RE: AT89C52 Circuit Design | 01/01/70 00:00 | |
RE: AT89C52 Circuit Design | 01/01/70 00:00 |