Laird BL654 Series Application Note page 12

To perform a transmit test, follow these steps:
Always start by pressing LE RESET.
Configure the applicable options in the Direct Test Mode. See
Figure 9: Direct Test Mode options
COM Port
LE RESET
Data rate
Standard or
Stable
Modulation
Index
Channel
Payload Model
i.e. Pkt Type
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modules/bluetooth-modules
Same as previous
First start by pressing LE RESET.
Select data rate from 1 MPHY or 2 MPHY or LE CODED (S=8) or LE CODED (S=2) or selecting
continuous CW select 1 MPHY
BL654 series BLE module currently does support standard modulation index, so press MOD'N
INDEX (STD)
19 (2440 MHz)
Pkt Type Value Parameter Description
00 PRBS9 Packet Payload
01 11110000 Packet Payload
10 10101010 Packet Payload
11 on the LE Uncoded PHYs: Vendor Specific
on the LE Coded PHY: 11111111
Pkt Type 00 – If a BLE-modulated TX signal is required with PRBS9 Packet payload
-or-
Pkt Type is 11 – If a continuous [CW] TX signal is required
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Figure 9 for an example.
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