| ??? 10/19/06 08:26 Read: times |
#126728 - Scope Responding to: ???'s previous message |
Helix N. said:
Hi! every body.
i use key 4x6 connect it become 8x6. connect it to 8051 : row1 - row8 connect to port0 with pullup col1-col6 connect to p2.0 - p2.5 scan with column but i do't get anything chage in row that i read it back ? I don't know, Somthing wrong ? If you have not got one, beg borrow or steal an oscilloscope to see the waveforms on your pins during a scan. Steve |
| Topic | Author | Date |
| About key 8x6 with 805, how i scan for get it key. | 01/01/70 00:00 | |
| Check voltage levels at port 0 | 01/01/70 00:00 | |
| Scope | 01/01/70 00:00 | |
| I get this one. OK | 01/01/70 00:00 | |
How to post code | 01/01/70 00:00 |