| ??? 07/25/06 05:29 Read: times |
#121007 - look at this way Responding to: ???'s previous message |
what i am trying to say is, for example this line:
P2=P2 | col_xlat[col]; Before the the keyscan part, the P2 has been initialized to 0xFF. Let's say now, it's putting the column 0 to 'low' which means "P2 = 1111 1111 OR 1110 0000 " (For col_xlat[0];) the new P2 result is again 1111 1111. What is the point of the line then? Or maybe i was wrong and i hope that someone will point out where is my mistake :) |
| Topic | Author | Date |
| Help on understanding 4x4 matrix keypad | 01/01/70 00:00 | |
| Some answers | 01/01/70 00:00 | |
| Another question | 01/01/70 00:00 | |
| cols | 01/01/70 00:00 | |
look at this way | 01/01/70 00:00 | |
| About the FF | 01/01/70 00:00 | |
| one improvement | 01/01/70 00:00 |