CC2745R10-Q1: CC2745R10-Q1: [BLE 6.0 CS DKC]*SDK version:9.14.00.41 How to achieve CC2745R10-Q1 and CC2340R53 channel sounding ranging ?

Hello, 

First, what is the preferred_peer_antenna variable within the procedure parameters set to? If you are using 2x2 antenna configuration, you should set this to 0b0011. 

Second, are you using a CC2340R53 LaunchPad? If you are, the RCL PBEGPO2, and PBEGPO3 PinMux need to be configured differently. These should be set to DIO7 for PBEGPO2, and DIO21 PBEGPO3. 

Let me know if this helps. 

Thanks,
Isaac

Hi, Isaac:

Thank you for your prompt reply.

1.Yes, I am using dual antennas, and the preferred_peer_antenna parameter is also set to 0b0011.

2.Yes, we are using the CC2340R53 LaunchPad. I have configured the pin PBEGPO2 as DIO7, and the pin PBEGPO3 as DIO21.

After testing, we still have not obtained the ranging data of channel sounding.May I ask if your test data is all normal? Could you provide the parameters of your CC2340R53 for our reference?

Thanks

Burt

2025.12.13

Hello Burt, 

No this is not normal. I have tested the CC2745R10-Q1 Initiator/Central/RAS Client, to a CC2340R53-Q1 Reflector/Peripheral/RAS Server before and observed distance results. Additionally, I have tested with L2CAP instead of RAS with the same results. 

Can you try running the demo without extended debug results? I have not tested that but will do so tomorrow to see if I observe the same output as you. 

Thanks,
Isaac

Hi, Isaac:
I have completed testing in single-antenna mode without extended debug results, where the CC2745R10-Q1 was configured as an Initiator/Central/RAS Client paired with a CC2340R53-Q1 configured as a Reflector/Peripheral/RAS Server—and reliable distance results were successfully observed.

I then attempted testing in dual-antenna mode(also without extended debug results). I configured the Antenna Mux Bitmap to 0xC6, assigned pin PBEGPO2 to DIO7 and pin PBEGPO3 to DIO21, and set the preferred_peer_antenna parameter to 0b0011 &aci:7.However, I have been unable to observe  distance results under this dual-antenna setup.

When you testing the dual-antenna ranging function of CC2745R10-Q1 and CC2340R53, is it possible to measure the distance normally? Is the distance value obtained through ranging normal?

The following is the log of my test:

<RTLSNode(BLE Device, started 9316)> []
Start Scanning for peer devices
Start Scanning
00:00:00:00:00:00: scan enabled
Adv report detected
Adv report detected
Adv report detected
Adv report detected
adv local name: Key Node
Create a connection with [125, 177, 179, 241, 52, 164] as a central
00:00:00:00:00:00: scan disabled
Connection created with: Key Node, connection handle: 0
Connection Data
----------------------------------------------------------------------
Status:                 0
Opcode:                 5
Address Type:           ADDRTYPE_PUBLIC_ID
Device Address:         A4:34:F1:B3:B1:7D
Connection Handle:      0
Connection Role:        8
Connection Interval:    24
Connection Latency:     0
Connection Timeout:     2000
Clock Accuracy:         0
----------------------------------------------------------------------
Waiting for pairing events from peer Key Node....
Pairing Encrypted Event Received
Pairing Complete
Connection Handle:     0
State:                 4
Status:                0
------------------------------------------------------
Connections: {'Key Node': 0}
***** read local cap *****
***** read remote cap *****
Remote Capabilities
----------------------------------------------------------------------
_io: []
event: 64
conn_handle: 0
status: 0
num_config: 4
max_procedures: 0
num_antennas: 2
max_ant_path: 4
role: 3
optional_modes: 1
rtt_cap: 0
rtt_aa_only_n: 255
rtt_sounding_n: 0
rtt_random_payload_n: 255
nadm_sounding: 0
nadm_random_seq: 0
optional_cs_sync_phy: 6
no_fae: 1
ch_sel_3c: 0
cs_based_ranging: 0
t_ip1_cap: 120
t_ip2_cap: 120
t_fcs_cap: 448
t_pm_csap: 0
t_sw_cap: 10
snr_tx_cap: 0
----------------------------------------------------------------------
***** security enable *****
Security Enable
----------------------------------------------------------------------
_io: []
event: 67
conn_handle: 0
status: 0
----------------------------------------------------------------------
***** set default settings *****
***** create config for connection *****
Create Config
----------------------------------------------------------------------
_io: []
event: 65
conn_handle: 0
status: 0
config_id: 0
state: 1
main_mode: 2
sub_mode: 255
main_mode_min_steps: 0
main_mode_max_steps: 0
main_mode_repetition: 0
mode_zero_steps: 3
role: 0
rtt_type: 0
cs_sync_phy: 1
channel_map: [252, 255, 127, 252, 255, 255, 255, 255, 255, 31]
ch_m_repetition: 1
ch_sel: 0
ch3c_shape: 0
ch3c_jump: 0
rfu0: 0
t_ip1: 3
t_ip2: 3
t_fcs: 6
t_pm: 2
rfu: 0
----------------------------------------------------------------------
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:40:46.405
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:40:49.780
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:40:53.154
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:40:56.515
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:40:59.863
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:03.197
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:06.574
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:09.939
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:13.314
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:16.673
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:20.032
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:24.470
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:27.829
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:31.178
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:34.521
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:37.880
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:41.239
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:44.599
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:47.968
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:51.327
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:54.686
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:41:58.045
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:01.404
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 40
conn_handle: 0
config_id: 0
enable: 0
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:04.794
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:05.138
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:08.482
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:11.841
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:15.200
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:18.559
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:21.918
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:25.277
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:28.637
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:32.011
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:35.370
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:38.730
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:42.089
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:45.479
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:48.869
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:52.229
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:55.588
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:42:58.947
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:02.306
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:05.665
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:09.024
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:12.383
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:15.743
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:19.102
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:22.461
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:25.820
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:29.195
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:32.554
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:35.917
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:39.269
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:42.608
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:45.968
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:49.328
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:52.672
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:56.046
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:43:59.406
Waiting for NWP_CS_APP_DISTANCE_RESULTS
***** procedure enable *****
Procedure Enable
----------------------------------------------------------------------
_io: []
event: 68
status: 0
conn_handle: 0
config_id: 0
enable: 1
aci: 7
pwr_delta: 10
sub_event_len: 55000
sub_events_per_event: 1
sub_event_interval: 0
event_interval: 1
procedure_interval: 0
procedure_count: 1
----------------------------------------------------------------------
2025-12-16 10:44:02.765
Waiting for NWP_CS_APP_DISTANCE_RESULTS
Distance Results - initiator
----------------------------------------------------------------------
_io: []
event: 96
status: 0
connHandle: 0
distance: 10
quality: 1710
confidence: 100
----------------------------------------------------------------------
Example ended

Thanks

Burt

Hello Burt, 

Can you try disabling RAS and using L2CAP? Let me know if that works. 

Thanks,
Isaac

Hello  Isaac,

I have disabled the ranging server of cc2340r53 and the ranging client of cc2745r10-q1 through Syscfg. Can this setting be regarded as using L2CAP transmission?

Based on the above settings, enabling the dual antennas of CC2340R53 and CC2745R10-Q1 results in no distance data output.

Thanks,

Burt

Hello Burt, 

I will summarize your findings below: 

1. Using CC27xx as initiator/central/RAS client w/ extended debug results shows invalid outputs with 2x2 antenna configuration. 

2. With the same configuration, but w/o extended debug results and 1x1 antenna configuration you observe valid distance output. 

3. Using L2CAP with 2x2 you observe no extended debug outputs. Do you also not observe regular distance outputs? 

I am back in the office after the holidays and was able to test CS with CC27xx Init/Central/Ras Client, and CC2340R53 Ref/Peripheral/Ras Server, and observed the problem. I see a distance output maybe 5% of the time. I am doing some more debugging and will update the team with the problem. 

Thanks,
Isaac