| ??? 05/04/07 15:16 Read: times |
#138627 - that is not necessarily good enough Responding to: ???'s previous message |
Your code does:
jb rxdn,$ but what does happen if "other side" never sets pin to low level due a failure, malfunction etc? Your code will run into unfinite loop, does it? That is why interrupts were invented. I have yet to see a polling program (OK, I have not seen the dead simple stuff such as "LCD and UART, no more") that did not "occsionally fail" Erik |
| Topic | Author | Date |
| bit-bang proplem | 01/01/70 00:00 | |
| bit bang can be many things | 01/01/70 00:00 | |
| Optocouplers | 01/01/70 00:00 | |
| re:schematic and code | 01/01/70 00:00 | |
| Speed? | 01/01/70 00:00 | |
| Do you have a CRO to see the wave forms? | 01/01/70 00:00 | |
| different timing | 01/01/70 00:00 | |
| everything ok | 01/01/70 00:00 | |
| not quite so... | 01/01/70 00:00 | |
| requested sermon | 01/01/70 00:00 | |
| thanks, Erik... | 01/01/70 00:00 | |
| one more | 01/01/70 00:00 | |
| that is not necessarily good enough | 01/01/70 00:00 | |
check time | 01/01/70 00:00 |