LISA-C200 & FW75-C200
AT commands examples - Application Note
CDMA-CS-12000
Preliminary
Page 14 of 41
5.2.2
Base syntax
Command
Response
Description
AT+USOWR=18,2,”hi”
+USOWR:18,2
OK
Writes 2 data bytes into socket #18, the data should
be written within quotations.
If the command response is returned then the data is
sent to a lower level of the protocol stack.
This is not
a notification of an acknowledgment received
from the remote host data bytes have been sent
to.
Some characters are not allowed in base
syntax mode. Check the
u-blox AT
command manual
[1] for the allowed
characters.
5.2.3
CDMA network coverage lost
First scenario: Network coverage lost after AT+USOWR command, base syntax
Command
Response
Description
AT+CMEE=2
OK
Set verbose error messages
AT+CREG=1
OK
Enables the URC for registration.
AT+USOCR=6
+USOCR:19
OK
Creates a TCP socket, the created ID socket is 19.
AT+USOCO=19,"195.34.89.241",7 OK
Creates a connection between Socket ID 19 and Port
7 of the IP Address 195.34.89.241.
AT+USOWR=19,25,”qwerty0122345
6poiuyt15969”
+USOWR:19,25
OK
Writing 25 bytes of data into socket ID 19.
+CREG:4,54,0
OK
Registration URC reporting the module is no longer in
cellular coverage.
Please refer to the
LISA-C/FW75 AT
Commands Manual
[1] for a complete
reference of the +CREG command.
+CREG:4,54,1
OK
Registration URC reporting the module is back into
CDMA cellular coverage.
AT+USOWR=19,30,”zxcvb01234lkj
hg45698rtyui32145”<CR>
In this case, the module lost again CDMA coverage
whilst typing the message, no response was possible
+CREG:4,54,0
OK
Again, the module lost CDMA coverage.
+CREG:4,54,1
OK
Registration URC reporting the module has recovered
CDMA coverage
+USOWR:19,30
OK
URC for the previous AT command prior to loose
CDMA coverage, the data was saved into the module
and sent to the network after it re-acquired CDMA
service.
