Hi, I am new to the EM7455/7430 modems. Can someone point me to a typical sequence of AT commands to set up the modem for cellular data transfer? I have a AT&T and Verizon SIM card. Basically I like to know the sequence of AT commands to issue to the modem after powering up the modem with the SIM c…

on linux: at!scact=1 (should return with OK) on the host dhclient or NTWK manager will automatically bringup the session assuming you already installed the Sierra drivers (GobiNet and GobiSerial) to upgrade the FW either use the linux SampleApps packed with the SDK or we have oneclick tools …

Thanks for your reply. The EM7455 modem is attached to our custom ARM board running Linux 3.6.5, and we will use our Linux application code to setup and control the modem, and this includes doing firmware upgrade. So our Linux app only needs to issue a single AT command to activate data transfer? …

During testing do not enable the PIN code, other than this you don’t have to configure the SIM. You can either control the modem with AT or QMI commands. The SDK has sample apps and docs how to compile it. “So doing firmware upgrade can only be done via the sampleApps” yes “How can I cross compi…

Thank you so much for your tips. I have successfully cross compiled the sampleApps for ARM. I am using the LITE SDK. Back to my question regarding configuring the modem on bootup… when the modem boots up with a SIM installed, it will automatically get its WAN IP address via DHCP by itself, or do I…

[image] dchou4u: when the modem boots up with a SIM installed, it will automatically get its WAN IP address via DHCP by itself, or do I need to configure it to do so? On embedded platforms you have to run DHCP or manually hardcode the IP to the interface with ifconfig. Most PC distribution w…

at+cgdcont=3,“IP”,“APN” it is on our AT guide.

I have been trying to find the product ID for the EM7455 and EM7430, but can’t seem to find it in the functional spec. Would you advise the product ID for these 2 modems? I believe the vendor ID is 0x1199. Thanks again for all your wonderful help!

Linux lsusb shows the modem’s VID/PID.

Hi, I am reviewing the AirPrime EM74xx AT command reference document rev 3, but I cannot find the at+cgdcont command. Do you mean at+cgdcont command? Also I like to reconfirm that firmware update cannot be done using AT commands on the EM74xx modems. I only can find the at!BOOTHOLD command that res…

EM7455/7430 configuration using AT commands

IoT Modules MC/EM Series

dchou4u January 17, 2019, 10:11pm 7

Thanks.

May I know what is the AT command to program the APN?

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EM7455/7430 configuration using AT commands

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