Hi,
I managed to get Channel Sounding with Pixel 10 as Initiator working, based on this change on mainline.
But for my use case I need the Pixel 10 to be the Reflector and the nRF54L15DK the Initiator.
I've updated the ras_initiator example to add similar changes as in the above mentioned patch (mainly took over the android_ranging.conf).
It connects and seems to exchange the CS capabilities but the CS procedure enable fails with status 0x2A
W: Procedure Enable failed with status 0x2A
W: CS procedures enable failed. (HCI status 0x2a)
Has someone managed to get it working? What could be the error. Let me know what logs I should provide to narrow this down. I tried to enable debug logs but then it does not even go past the connection step.
0x2A is probably "BT_HCI_ERR_DIFF_TRANS_COLLISION"?
I tried the changes mentioned here:
Specific Android tablet model isn't able to reliably connect
to manually update the PHY to 2M but it still shows the error.
Here is the full output.
I: Starting Channel Sounding Initiator Sample
I: 2 Sectors of 4096 bytes
I: alloc wra: 0, fc0
I: data wra: 0, 0
I: SoftDevice Controller build revision:
I: 5c 54 22 56 50 b4 1a 40 |\T"VP..@
I: 82 87 e0 59 87 be d0 2a |...Y...*
I: 31 69 b0 f5 |1i..
I: HW Platform: Nordic Semiconductor (0x0002)
I: HW Variant: nRF54Lx (0x0005)
I: Firmware: Standard Bluetooth controller (0x00) Version 92.8788 Build 448024662
I: No ID address. App must call settings_load()
I: HCI transport: SDC
I: Identity: FA:22:F4:AF:17:1B (random)
I: HCI: version 6.1 (0x0f) revision 0x30a9, manufacturer 0x0059
I: LMP: version 6.1 (0x0f) subver 0x30a9
I: Filters matched. Address: 47:6B:33:37:B9:BB (random) connectable: 1
I: Connecting
I: Connected to 47:6B:33:37:B9:BB (random) (err 0x00)
I: PHY updated. New PHY: 2M
I: Security changed: 47:6B:33:37:B9:BB (random) level 2
I: MTU exchange success (498)
I: The discovery procedure succeeded
I: Read RAS feature bits: 0x1
I: CS capability exchange completed.
I: CS config creation complete.
- id: 0
- mode: 2 (PBR)
- min_main_mode_steps: 0
- max_main_mode_steps: 0
- main_mode_repetition: 0
- mode_0_steps: 3
- role: Initiator
- rtt_type: AA only
- cs_sync_phy: LE 1M PHY
- channel_map_repetition: 1
- channel_selection_type: Algorithm #3b
- ch3c_shape: Hat shape
- ch3c_jump: 2
- t_ip1_time_us: 30
- t_ip2_time_us: 20
- t_fcs_time_us: 80
- t_pm_time_us: 10
- channel_map: 0x1FFFFFFFFFFFFC7FFFFC
I: CS security enabled.
I: Connection parameters: interval 20.00 ms, latency 0 intervals, timeout 4000 ms
W: Procedure Enable failed with status 0x2A
W: CS procedures enable failed. (HCI status 0x2a)
