Hi,
I am evaluating the LTE modem demo. I downloaded the demo binary firmware images a few weeks ago. Today I installed the LTE Modem demo into my dev kit. It connected up OK but along the way the AT interface froze a few times. Once when clicking the Search Networks button in LTE Link Monitor. Another time when sending AT+CGDCONT?.
Below shows an example of a socket read making the AT interface unresponsive. URCs are still being sent but no reply to any AT commands. It hangs on the AT interface when AT#XRECV=2 is called after there is no more socket data to read.
Is this sort of crashing common?
AT#XSOCKET=1,1,0
#XSOCKET: 1,1,0,6
OK
AT+CESQ
+CESQ: 99,99,255,255,13,42
OK
%CESQ: 42,2,10,1
AT+CESQ
+CESQ: 99,99,255,255,10,43
OK
%CESQ: 43,2,15,2
AT#XCONNECT="echo.u-blox.com",7
#XCONNECT: 1
OK
AT#XSEND=1,"fred"
#XSEND: 4
OK
%CESQ: 43,2,10,1
AT+CESQ
+CESQ: 99,99,255,255,12,43
OK
AT#XRECV=2
u-
#XRECV: 1,2
OK
AT#XRECV=2
bl
#XRECV: 1,2
OK
AT#XRECV=2
ox
#XRECV: 1,2
OK
AT#XRECV=2
T
#XRECV: 1,2
OK
AT#XRECV=2
CP
#XRECV: 1,2
OK
AT#XRECV=2
/U
#XRECV: 1,2
OK
AT#XRECV=2
DP
#XRECV: 1,2
OK
AT#XRECV=2
t
#XRECV: 1,2
OK
AT#XRECV=2
es
#XRECV: 1,2
OK
AT#XRECV=2
t
#XRECV: 1,2
OK
AT#XRECV=2
se
#XRECV: 1,2
OK
AT#XRECV=2
rv
#XRECV: 1,2
OK
AT#XRECV=2
ic
#XRECV: 1,2
OK
AT#XRECV=2
e
#XRECV: 1,2
OK
AT#XRECV=2
fr
#XRECV: 1,2
OK
AT#XRECV=2
ed
#XRECV: 1,2
OK
AT#XRECV=2
AT#XRECV=2
AT#XRECV=2
AT+CESQ
AT#XSEND=1,"some test data"
AT+CESQ
AT+CESQ
AT+CESQ
%CESQ: 44,2,15,2
%CESQ: 42,2,10,1
AT+CESQ
AT+CESQ
%CESQ: 44,2,15,2
%CESQ: 44,2,10,1
AT+CESQ
%CESQ: 44,2,15,2
%CESQ: 44,2,10,1
AT+CESQ
%CESQ: 45,2,15,2
%CESQ: 43,2,10,1
AT+CESQ
%CESQ: 44,2,15,2
%CESQ: 44,2,10,1
AT+CESQ
%CESQ: 45,2,15,2
%CESQ: 45,2,10,1
AT+CESQ
%CESQ: 44,2,15,2
%CESQ: 43,2,10,1
%CESQ: 43,2,15,2
AT+CESQ
%CESQ: 43,2,10,1
%CESQ: 43,2,15,2
AT+CESQ
AT+CESQ
%CESQ: 43,2,10,1
%CESQ: 44,2,15,2
