From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============4933960535893020405==" MIME-Version: 1.0 From: Denis Kenzior Subject: Re: Telit he910 ---- modem port got stuck Date: Tue, 12 Mar 2013 12:53:08 -0500 Message-ID: <513F6B84.8030909@gmail.com> In-Reply-To: <513F30AB.6060806@southpole.se> List-Id: To: ofono@ofono.org --===============4933960535893020405== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Hi Jonas, On 03/12/2013 08:42 AM, Jonas Bonn wrote: > On 03/12/2013 02:26 PM, Ming Li Wu wrote: >> Hello, >> >> I am using Telit HE910 modem, the version of firmware is 12.00.03. >> >> Sometimes, the modem port got stuck after sending AT+CGDCONT=3D1. >> (Such as AT+CGDCONT=3D1,"IP","internet.tele2.se"). >> >> >> The following was the situation when this problem happened >> Aux: > AT+CRSM=3D192,28621\r >> Modem: > AT+CGDCONT=3D1,"IP","internet.tele2.se"\r >> Modem: < AT+CGDCONT=3D1,"IP","internet.tele2.se"\r >> Aux: < \r\n+CME ERROR: 4\r\n > > The problem, in short, is that the Telit HE910 does not support sending > any AT command on the Modem port while there is an outstanding command > on the Aux port (this should be true for all Telit modems). Does Ofono Many M2M setups use the modem from multiple applications (e.g. one app = uses one port for SMS, another for data, another for GPRS). So I'd be = surprised if the Telit firmware had such a limitation. If that is the = case, then the Telit firmware is broken and should be fixed. > support synchronizing these two channels so that they effectively share > a common command queue? If yes, how? There is no such capability. That would defeat the purpose of having = multiple channels in the first place. About the only thing you can do = is drive everything off of the AUX serial port and only use the Modem = port for entering into PPP mode. Regards, -Denis --===============4933960535893020405==--