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User Manual for “LM068_BLE_Peri_0204” FW
full and still BLE adapter receives data on TX line then a warning message
of Buffer full is given to the user.
viii. The data received by BLE adapter from Central device is uploaded on the
Rx line as soon as it receives.
ix. If the data transmission is full duplex there may be some delays observed
as compared to the timings observed with simplex data transfer.
x. The BLE adapter may hang-up if the central device continuously sends the
data packets to BLE adapter, a delay of at-least 10 mSec should be given
between consecutive packets.
Figure 9: Details for Serial-Over-GATT service
4.5 Messages on UART of BLE adapter:
i. Find below screen shots for messages on UART from power on till the
actual data transfer on BLE link.
ii.
iii.
iv. Serial communication with the BLE adapter can be performed using Serial-
Over-GATT-Service provided by CSR/Qualcomm with 128-bit UUID as
”0000-5500-d102-11e1-9b23-0002-5b00-a5a5”.
v. The above “Serial over GATT” service supports one characteristic with 128-
bit UUID as “0000-5501-d102-11e1-9b23-0002-5b00-a5a5”.
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