| ??? 06/27/06 05:20 Read: times |
#119170 - KEY RELEASE SUBROUTINE ... Responding to: ???'s previous message |
Hello Kai, ...
I am greatfull to you for giving me the valuable guidance ... It really helped me alot ... One thing I wanted to ask ... as you have given the scanning program whether the key is released or not ... Can we use the below subroutine for checking whether the key is realeased or not ... SWITCHES ARE CONNECTED TO PORT 1 AND INTIALLY THE PORT 1 IS MADE HIGH
MOV P1, #0FFH
FOR MAKING IT IS AN INPUT ... Below is the SUBROUTINE ...
CHECK_KEYRELEASE:
MOV A,P1
CPL A
JNZ CHECK_KEYRELEASE
best regards Arvind Shrivastava ... |
| Topic | Author | Date |
| Multiple switch debouncing | 01/01/70 00:00 | |
| Otherways | 01/01/70 00:00 | |
| Vertical counters | 01/01/70 00:00 | |
| vertical conters in C | 01/01/70 00:00 | |
| and here | 01/01/70 00:00 | |
| vertical counter with press detection | 01/01/70 00:00 | |
| debounce and denoise needed | 01/01/70 00:00 | |
| You are right of course, but... | 01/01/70 00:00 | |
| Reminds me... (off topic) | 01/01/70 00:00 | |
| XRL P2,A | 01/01/70 00:00 | |
| some hair-splitting | 01/01/70 00:00 | |
| exchange | 01/01/70 00:00 | |
| thanx Kai ... | 01/01/70 00:00 | |
| my way | 01/01/70 00:00 | |
| exactly! | 01/01/70 00:00 | |
| Spot on. | 01/01/70 00:00 | |
| Two samples enough? | 01/01/70 00:00 | |
| varies with design | 01/01/70 00:00 | |
| Conditional executing versus branching | 01/01/70 00:00 | |
| KEY RELEASE SUBROUTINE ... | 01/01/70 00:00 | |
| Not really... | 01/01/70 00:00 | |
| a TOTAL misconception or -very annoying | 01/01/70 00:00 | |
| He does not | 01/01/70 00:00 | |
| Beer o'clock | 01/01/70 00:00 | |
| Yes, good idea | 01/01/70 00:00 | |
| never did, never will | 01/01/70 00:00 | |
Agree | 01/01/70 00:00 |