User's Guide

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LM074 SPP with GAP Central Application v1.1
3.8 BLE write data on Characteristic:
3.8.1 “AT*ENBCCFG”\r\n
i. Execution only command.
ii. Command used to enable the Client-Configuration-Flag (CCFG) on
specific characteristic.
iii. When the module scans the characteristics of the device, it shows
the CCFG flag if supported by that characteristic. E.g Serial-Over-
Gatt service supports this flag (highlighted yellow in below report).
iv. While issuing command, user should mention the device-
connection-ID and characteristic handle.
v. E.g The device 1 has CCFG flag characteristic with handle 0019.
To enable the CCFG flag use command “at*enbccfg=1,0019”.
vi. Module shall give OK response if the characteristic has CCFG flag
otherwise module shall give ERR response if wrong characteristic
handle is mentioned.
vii. After the module responds with “OK”, the module receives
feedback from the BLE device regarding success or failure, which
is reported to the user.
viii. The report “REP*:WRCHARVAL=1:Success” shows enable CCFG
operation is performed successfully.
at*findchar=1,0001,001bat*findchar=1,0001,001b
OK
REP*:CHAR start
=1: 2a00 : 0003 : 02 : 0002 [ Rd ]
=2: 2a01 : 0005 : 02 : 0004 [ Rd ]
=3: 2a25 : 0008 : 02 : 0007 [ Rd ]
=4: 2a24 : 000a : 02 : 0009 [ Rd ]
=5: 2a23 : 000c : 02 : 000b [ Rd ]
=6: 2a27 : 000e : 02 : 000d [ Rd ]
=7: 2a26 : 0010 : 02 : 000f [ Rd ]
=8: 2a28 : 0012 : 02 : 0011 [ Rd ]
=9: 2a29 : 0014 : 02 : 0013 [ Rd ]
=10: 2a50 : 0016 : 02 : 0015 [ Rd ]
=11: 00005501 : 0019 : 14 : 0018 [ Wr_cmd CCFG ]
REP*:CHAR END
at*enbccfg=1,0019at*enbccfg=1,0019
OK
REP*:WRCHARVAL=1:Success