I tried that yesterday, and the result is really, really weird. As expected, since ATE1 just turns on local echo, I still don't see any data coming from the modem with regard to inbound characters from a remote server, or the responses to my AT commands. I DO however see the characters I type echoed back, except.... This is hard to explain - They are delayed by a single keystroke. Here's what I mean.
For example, if I type AT, I will see:
A
on the terminal screen. If I type ATDT I will see:
ATD
on the terminal screen. It's really weird.
If I type AT<ENTER> I will see:
AT
on the terminal screen, with no linefeed.
I have no idea why that would happen. It's really strange because I can't possibly imagine how the characters appearing on the screen would lag behind what I'm typing by a single keystroke. Some sort of buffer somehow? I don't get it.
For example, if I type AT, I will see:
A
on the terminal screen. If I type ATDT I will see:
ATD
on the terminal screen. It's really weird.
If I type AT<ENTER> I will see:
AT
on the terminal screen, with no linefeed.
I have no idea why that would happen. It's really strange because I can't possibly imagine how the characters appearing on the screen would lag behind what I'm typing by a single keystroke. Some sort of buffer somehow? I don't get it.
- Jarrod Kailef, Wearer of Many Hats
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