| ??? 07/02/04 12:03 Read: times |
#73499 - RE: key pad verification at boot up time Responding to: ???'s previous message |
"I want to verify at the boot up of my system that key pad is connected to it or not"
1. Reserve two pins (A, B )in the connector. 2. Short them ( loop them )both on the keypad side. 3. Connect A to a port pin and B to ground on MCU side of connector. 4. Poll the port pin to know if the key pad is connected. Raghu |
| Topic | Author | Date |
| key pad verification at boot up time | 01/01/70 00:00 | |
| RE: key pad verification at boot up time | 01/01/70 00:00 | |
| RE: key pad verification at boot up time | 01/01/70 00:00 | |
| RE: key pad verification at boot up time | 01/01/70 00:00 | |
RE: key pad verification at boot up time | 01/01/70 00:00 | |
| RE: key pad verification at boot up time | 01/01/70 00:00 | |
| RE: key pad verification at boot up time | 01/01/70 00:00 |