Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
hi .. i tested ip stack with g20 ... there are some problems i found e.g. modem freezing when receives packet longer the 80B. Manafacurer said that these problems sould be solved in next firmware release. I had also problem due to the power supply .. you shold take care about ps designe due to current bursts while transmiting. i had much better experiences with cheaper gr47 module.
Thank You cancel for answer.
I have vey good power supplay, this is no problem.
My problem is; when issue command MIPCALL with
correct parameters, i have no prompt and waiting very
long time, and no answer. When i send any character,
get answer command aborted. What is gr47, also Motorola ?
Where to get documentation, app. notes, example soft to g20 ?
Were you successful in creating GPRS connection using g20 AT+MIPCALL command? I am interested in connecting using polish plusGSM sim card the same as You are. I am trying to deal with it but unfortunately whatever parameters I am using in mipcall comand I always receive the same answer:
Did You find a solution to this problem??
Please If You have any expiriences in these area please let me know.
In AT commands reference there's written that MIPCALL command blocks terminal (EVEN AFTER answering "OK") until +mipcall is returned. If you try to send another command to the modem when it's still busy it'll abort and return "+mipcall: 0".