| ??? 03/27/09 09:10 Read: times |
#163890 - The proper response to "AT" is "OK" Responding to: ???'s previous message |
Richard Erlacher said:
Doesn't it send back a '?' or some other recognizable character? The proper response to "AT" is "OK"[1]. So any other response than "OK" must indicate something's wrong - and I'll assume that it's the baud rate. In fact, I guess I should also look for "ERROR" - in case my "AT" has somehow got "tacked-on" to the end of some other, incomplete, command... I'll also have to cope with the possibility that the modem might be set to echo - which it might do at the "wrong" rate... using character time There's an idea; hadn't thought of that one - thanks! [1] Actually, if the modem is set to "Terse" mode (numeric result codes), it might just respond with "0"... |
| Topic | Author | Date |
| Autobaud - the other end... | 01/01/70 00:00 | |
| Doh | 01/01/70 00:00 | |
| Eh? | 01/01/70 00:00 | |
| Homing in | 01/01/70 00:00 | |
| Considerations | 01/01/70 00:00 | |
| How does it respond to AT? | 01/01/70 00:00 | |
| The proper response to "AT" is "OK" | 01/01/70 00:00 | |
| no absolutely perfect solution | 01/01/70 00:00 | |
| Character time | 01/01/70 00:00 | |
| Go for KISS | 01/01/70 00:00 | |
| only be needed once after a modem change. | 01/01/70 00:00 | |
| Some ARM7's have Autobaud detect | 01/01/70 00:00 | |
| No - the *other* end! | 01/01/70 00:00 | |
| Fall back and forward | 01/01/70 00:00 | |
| Only interested in local DTE-DCE speed | 01/01/70 00:00 | |
| You were clear | 01/01/70 00:00 | |
| Start slow, or start fast...? | 01/01/70 00:00 | |
| Unnecessarily high? | 01/01/70 00:00 | |
| High baudrate = bursty | 01/01/70 00:00 | |
| Throughtput | 01/01/70 00:00 | |
| Keep Up? | 01/01/70 00:00 | |
Keeping up always hard at high baudrates | 01/01/70 00:00 | |
| KISS? | 01/01/70 00:00 | |
| A Cunning Plan... | 01/01/70 00:00 | |
| Timing | 01/01/70 00:00 |