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by donjohnii
Thu May 04, 2017 11:58 am
Forum: CELLv1.0
Topic: UART stutters on startup
Replies: 47
Views: 12300

Re: UART stutters on startup

trying on putty is hard too because you have to have it formatted perfectly (it's the return statements that are the problem). There's a website I use to encode it properly. I use postman typically to do REST calls but you're correct in trying putty through the modem. I'll have to break this out bec...
by donjohnii
Wed May 03, 2017 10:35 am
Forum: CELLv1.0
Topic: UART stutters on startup
Replies: 47
Views: 12300

Re: UART stutters on startup

It's sort-of bad news in that it's still hiccuping, but it's good news in that it's something much more tangibly debuggable. TCP is not supposed to lose data... so either the module is having problems or the code is wrong on the Arduino. Have you tried the same thing over USB/putty? PM me your URL a...
by donjohnii
Tue May 02, 2017 10:28 pm
Forum: CELLv1.0
Topic: UART stutters on startup
Replies: 47
Views: 12300

Re: UART stutters on startup

Little pickle - here's what ZTE said: 1,I test it and works well 2,Please tell me your software version 3,I do not konow what means about networked AT commands and internal AT commands 4,Could please you test it with ZTE G2000 development kit I'm not sure how far we're going to get with them on this...
by donjohnii
Mon May 01, 2017 8:54 pm
Forum: CELLv1.0
Topic: UART stutters on startup
Replies: 47
Views: 12300

Re: UART stutters on startup

Consistent between multiple devices I mean? I'd like to respond to them with as much as I can... I'll grab your dump too and put that in there.
by donjohnii
Mon May 01, 2017 7:43 pm
Forum: CELLv1.0
Topic: UART stutters on startup
Replies: 47
Views: 12300

Re: UART stutters on startup

Got a message back from ZTE below -

"The AT+COPN output has<=20 group data"

Apparently yours has a bug of some sort. Is it consistent?
by donjohnii
Sun Apr 30, 2017 2:04 pm
Forum: CELLv1.0
Topic: UART stutters on startup
Replies: 47
Views: 12300

Re: UART stutters on startup

Wait, how do you have so many networks on your COPN command? Does that seem legitimate? Is there really that many cell towers there for your network... crazy, I guess it's possible.

"The AT+COPN output has >1400 lines on Putty"
by donjohnii
Sun Apr 30, 2017 1:04 pm
Forum: CELLv1.0
Topic: UART stutters on startup
Replies: 47
Views: 12300

Re: UART stutters on startup

So, it seems to me that setting up the server test would be most beneficial to you and an apples to apples comparison. The networking stack is much different than their internals. I'll ask the question though, but don't expect their internal debug to be equivalent to a network test... two completely...
by donjohnii
Sat Apr 29, 2017 3:24 pm
Forum: CELLv1.0
Topic: UART stutters on startup
Replies: 47
Views: 12300

Re: UART stutters on startup

Do you have two accounts? Why do you need that particular command to work... why not ignore that particular issue and move on? I can ask them, but I assume they'll respond in kind... it overflows the internal buffer but doesn't impact normal network operation. What are you looking to do that you can...
by donjohnii
Sat Apr 29, 2017 12:43 am
Forum: CELLv1.0
Topic: UART stutters on startup
Replies: 47
Views: 12300

Re: UART stutters on startup

There is a difference depending on where the data is sourced. The at command you're using is a debug command rather than one processed through the network and thus may not be traversing their buffering engine and seems like its just being dumped... probably overflowing their internal TX buffer. I ca...
by donjohnii
Fri Apr 28, 2017 8:52 pm
Forum: CELLv1.0
Topic: UART stutters on startup
Replies: 47
Views: 12300

Re: UART stutters on startup

I think you're traveling far outside the bounds of operation here... if you stick with 115200 and communicate normally, you'll be fine. Maybe I'm taking you down the rabbit hole answering these questions, but you're using a debug command which may not be meant for dumping it out over uart... it's no...

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