??? 03/27/09 09:25 Read: times |
#163893 - Only interested in local DTE-DCE speed Responding to: ???'s previous message |
Ap Charles said:
http://en.wikipedia.org/wiki/Fall_back_and_forward
Fall back is a feature of a modem protocol in data communication whereby two communicating modems which experience data corruption (due to line noise, for example) can renegotiate with each other to use a lower-speed connection. Fall forward is a corresponding feature whereby two modems which have "fallen back" to a lower speed can later return to the higher speed if the connection improves. Ah; I'm just interested in the local speed between the microcontroller (DTE) and the modem (DCE) - not the "line" speed. Sorry if I didn't make that clear. |
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 |