| ??? 04/14/07 08:38 Read: times |
#137237 - Non-useful Serial ISR Responding to: ???'s previous message |
Mike Stegmaier said:
now check this code out for a serial routine:
serisr:
jnb RI, skipri
mov A, SBUF
skipri:
retiIt is alot betterIs it? It's certainly quick and simple - but it doesn't do anything useful at all! All it does is copy the received character from SBUF to A - but the rest of the program has absolutely no way of telling that this has happened, so cannot do anything with the received character! and now the other routine ... has a chance to process data. See above: How can it process anyhting when it doesn't know that there's something to process?! |
| Topic | Author | Date |
| RxD to LCD problems | 01/01/70 00:00 | |
| Serial ISR | 01/01/70 00:00 | |
| work needed. | 01/01/70 00:00 | |
| you need to control flow | 01/01/70 00:00 | |
| confused | 01/01/70 00:00 | |
| this is what I mean | 01/01/70 00:00 | |
| OK | 01/01/70 00:00 | |
| yes | 01/01/70 00:00 | |
| Non-useful Serial ISR | 01/01/70 00:00 | |
| AND it's stuck | 01/01/70 00:00 | |
| thanks | 01/01/70 00:00 | |
| I was going for optimization. | 01/01/70 00:00 | |
| It's functioning | 01/01/70 00:00 | |
| now stay consistent | 01/01/70 00:00 | |
| Terminating code? | 01/01/70 00:00 | |
| . | 01/01/70 00:00 | |
| correct terminology | 01/01/70 00:00 | |
| Missing the point | 01/01/70 00:00 | |
| i get it now | 01/01/70 00:00 | |
| Most, but not all | 01/01/70 00:00 | |
| why on earth | 01/01/70 00:00 | |
| if it\'s almost correct, it\'s still wrong :-) | 01/01/70 00:00 | |
| ok | 01/01/70 00:00 | |
| Not R6 and R7 | 01/01/70 00:00 | |
| well it happend again | 01/01/70 00:00 | |
| Q.E.D. | 01/01/70 00:00 | |
| One further comment is needed | 01/01/70 00:00 | |
| Hey | 01/01/70 00:00 | |
| Dangerous recommendation | 01/01/70 00:00 | |
| good point | 01/01/70 00:00 | |
they all do | 01/01/70 00:00 | |
| it 'trust' the same as 'experiment'? | 01/01/70 00:00 | |
| more issues | 01/01/70 00:00 | |
| Joe, please read this | 01/01/70 00:00 |