Cinterion PH8 GSM Mobile Broadband Module Not Responding the AT Command

changyuheng — Fri, 13 Jun 2014 09:47:13 GMT

I am currently porting Cinterion PH8 GSM Mobile Broadband Module on SabreSD Linux Kernel 3.0.35 Ubuntu 11.10。

I made the follow changes to Kernel Configs:

+CONFIG_MD=y

+CONFIG_PPP=y

+CONFIG_PPP_MULTILINK=y

+CONFIG_PPP_FILTER=y

+CONFIG_PPP_ASYNC=y

+CONFIG_PPP_SYNC_TTY=y

+CONFIG_PPP_DEFLATE=y

+CONFIG_PPP_BSDCOMP=y

+CONFIG_PPP_MPPE=y

+CONFIG_PPPOE=y

+CONFIG_USB_SERIAL=y

+CONFIG_USB_SERIAL_GENERIC=y

+CONFIG_USB_SERIAL_OPTION=y

-CONFIG_CRC_CCITT=m

and then found the device node at /dev/ttyUSB0 ~ 4.

But after echo AT command to /dev/ttyUSB3: "echo -ne "AT+COPS?" > /dev/ttyUSB3", I did not see any response except "AT+COPS?".

I used command "lsusb" to check the device info, but I can only see the VID and PID without any information of it.

What else can I do now?

topic Cinterion PH8 GSM Mobile Broadband Module Not Responding the AT Command in i.MX Processors