just for the people who have the same problem:
the only solution I could manage is by used linux arm (ubuntu) instade of angstrom, then the USB0—USB2 are appear, and the modem work successfully.
to send sms from the beaglebone I used the follwoing command on the terminal :
udo echo -e -n “AT+CMGF=1 \015” > /dev/ttyUSB0
sudo echo -e -n “AT+CMGS=“your mobile number” \015” > /dev/ttyUSB0
sudo echo -e -n “your text message \015” > /dev/ttyUSB0
sudo echo -e -n “\032” > /dev/ttyUSB0
sudo echo “SMS was sent successfully!”
you can copy past the above command to a text file after append:
#!/bin/bash
and make the file as an excutable file (chmod 755 yourfilename)
then you can send sms by just run the above txt file.
thanks for every one for help
For beagle board-xm, I am really do not know, but for beaglebone, I install linux arm by follow the instructions in the following link, its very helpful. the tutorial originally is to using wifi with beaglebone with linux arm.
the commands are pretty much the same, you just have to redirect the command to desired serial terminal.
I did some projects on GSM and GPRS both usage with 8 bit microcontrollers and with Beaglebone/board its too easy and convinient.