| ??? 08/10/11 13:37 Read: times |
#183290 - Double Characters... Responding to: ???'s previous message |
Double characters will be the best idea if you want to keep it easy to type from a terminal program. Of the ideas that others have suggested only the "AA"+CR idea from Stefan meets the requirement so far.
It turns out that any relational pattern idea can be used. By relational I mean that one can infer what one character of the double character pair should be from the other. The non typeable ideas of adding MSB to one or sending the complement of the first byte are specific examples this relational idea. Stefan's AA is typeable and is just as good from an error detection standpoint. Below are three other ideas that could be used that are typeable. Adjacent Character Idea. If command is A then send AB If command is g then send gh If command is X then send XY Flip Case Idea. If command is A then send Aa If command is g then send gG If command is X then send Xx Combo Adjacent Flip Case Idea If command is A then send Ab If command is g then send gH If command is X then send Xy Michael Karas |
| Topic | Author | Date |
| Error detecting codes over RS232 | 01/01/70 00:00 | |
| RE: increase the error detection capability | 01/01/70 00:00 | |
| How complex? | 01/01/70 00:00 | |
| Hamming distance | 01/01/70 00:00 | |
| Hamming distance really not a good choice | 01/01/70 00:00 | |
| KISS | 01/01/70 00:00 | |
| Transfer size? | 01/01/70 00:00 | |
| Transfer Size --- | 01/01/70 00:00 | |
| Parameter free | 01/01/70 00:00 | |
Transfer Size --- | 01/01/70 00:00 | |
| double command and CR | 01/01/70 00:00 | |
| a bit more involved and better | 01/01/70 00:00 | |
| Double Characters... | 01/01/70 00:00 |