Hi,
I am trying to send AT commands to the WP8548 but having problems. Whenever I use a + inside my command I get weird results.
The ATI command works fine:
echo ATI > /dev/ttyUSB3
Manufacturer: Sierra Wireless, Incorporated
Model: WP8548
Revision: SWI9X15Y_07.11.22.00 r33729 CARMD-EV-FRMWR1 2017/01/11 18:04:06
MEID: 35937706016152
ESN: 12812475881, 80BE5DE9
IMEI: 359377060161527
IMEI SV: 43
FSN: LL731400171610
+GCAP: +CGSM,+DS,+ES
However, when I do this:
AT+CPOF > /dev/ttyUSB3
I get:
AT+CPOF
ERROR
AT+C
ERROR
AT+C
ERROR
AT+C
ERROR
AT+C
ERROR
AT+C
ERROR
AT+C
ERROR
I am very new to the Sierra Wireless modem and using AT commands. Can someone please tell me what I am doing wrong?