| ??? 01/14/04 16:08 Read: times |
#62562 - RE: interfacing 4*3 keypad to 8051 Responding to: ???'s previous message |
Try using the ASCII tabel as Oleg intended ...
This way, you can expand your table with ease. instead of build your own keypad scanner, you should consider using a device as 74C922 or likewise ... This reduces the intense keypad scanning in your code... Have fun. |
| Topic | Author | Date |
| interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
| RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
| RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
| RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
| RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
| RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
| RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
| RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 | |
RE: interfacing 4*3 keypad to 8051 | 01/01/70 00:00 |