Reducing APP_ADV_INTERVAL to 400 (instead of 1600) makes the "LE Create Connection" work every single time now. Hopefully with bluetooth-next update in Chrome OS (https://code.google.com/p/chromium/issues/detail?id=576577#c20) and especially https://git.kernel.org/cgit/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=2f99536a5b34d5b0f54723067d68f6cef3f0fdc6, we won't have to set a smaller Advertising Interval as it reduces battery's life. Do you maybe have another recommendation while it reaches Stable channel? On Mon, Jan 25, 2016 at 5:52 PM, Jakub Pawlowski <jpawlowski@xxxxxxxxxx> wrote: > I'm at UPF right now, will look at it tonight. > Have you updated firmware on DK to latest one ? > > On Mon, Jan 25, 2016 at 7:23 AM, François Beaufort > <beaufort.francois@xxxxxxxxx> wrote: >> >> I fail to understand what is happening here and I would appreciate your >> help. >> I'm able to see my nearby device (NRF51822DK) with the "scan on" command. >> However when calling "connect F1:6F:DE:EC:F1:D6" from bluetoothctl, I >> get a "connect failed" error... >> And from times to times, it magically works... meaning it gets a >> connect failed but eventually create a connection with a single >> "connect" command by the way. >> >> Here's a btmon trace below. >> >> Bluetooth monitor ver 5.35 >> = New Index: A4:17:31:78:A6:04 (BR/EDR,USB,hci0) >> [hci0] 0.753884 >> >> >> < HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 >> [hci0] 22.180529 >> Type: Passive (0x00) >> Interval: 60.000 msec (0x0060) >> Window: 30.000 msec (0x0030) >> Own address type: Public (0x00) >> Filter policy: Ignore not in white list (0x01) >> > HCI Event: Command Complete (0x0e) plen 4 >> > [hci0] 22.181008 >> LE Set Scan Parameters (0x08|0x000b) ncmd 1 >> Status: Success (0x00) >> < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 >> [hci0] 22.181041 >> Scanning: Enabled (0x01) >> Filter duplicates: Enabled (0x01) >> > HCI Event: Command Complete (0x0e) plen 4 >> > [hci0] 22.182008 >> LE Set Scan Enable (0x08|0x000c) ncmd 1 >> Status: Success (0x00) >> > HCI Event: LE Meta Event (0x3e) plen 36 >> > [hci0] 22.264099 >> LE Advertising Report (0x02) >> Num reports: 1 >> Event type: Connectable undirected - ADV_IND (0x00) >> Address type: Random (0x01) >> Address: F1:6F:DE:EC:F1:D6 (Static) >> Data length: 24 >> Flags: 0x05 >> LE Limited Discoverable Mode >> BR/EDR Not Supported >> Name (complete): Espruino NRF51822DK >> RSSI: -49 dBm (0xcf) >> < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 >> [hci0] 22.264224 >> Scanning: Disabled (0x00) >> Filter duplicates: Disabled (0x00) >> > HCI Event: Command Complete (0x0e) plen 4 >> > [hci0] 22.265029 >> LE Set Scan Enable (0x08|0x000c) ncmd 1 >> Status: Success (0x00) >> < HCI Command: LE Create Connection (0x08|0x000d) plen 25 >> [hci0] 22.265139 >> Scan interval: 60.000 msec (0x0060) >> Scan window: 30.000 msec (0x0030) >> Filter policy: White list is not used (0x00) >> Peer address type: Random (0x01) >> Peer address: F1:6F:DE:EC:F1:D6 (Static) >> Own address type: Public (0x00) >> Min connection interval: 50.00 msec (0x0028) >> Max connection interval: 70.00 msec (0x0038) >> Connection latency: 0x0000 >> Supervision timeout: 420 msec (0x002a) >> Min connection length: 0.000 msec (0x0000) >> Max connection length: 0.000 msec (0x0000) >> > HCI Event: Command Status (0x0f) plen 4 >> > [hci0] 22.266017 >> LE Create Connection (0x08|0x000d) ncmd 1 >> Status: Success (0x00) >> < HCI Command: LE Create Connection Cancel (0x08|0x000e) plen 0 >> [hci0] 24.269467 >> > HCI Event: Command Complete (0x0e) plen 4 >> > [hci0] 24.271009 >> LE Create Connection Cancel (0x08|0x000e) ncmd 1 >> Status: Success (0x00) >> > HCI Event: LE Meta Event (0x3e) plen 19 >> > [hci0] 24.272993 >> LE Connection Complete (0x01) >> Status: Unknown Connection Identifier (0x02) >> Handle: 32 >> Role: Master (0x00) >> Peer address type: Random (0x01) >> Peer address: F1:6F:DE:EC:F1:D6 (Static) >> Connection interval: 67.50 msec (0x0036) >> Connection latency: 0.00 msec (0x0000) >> Supervision timeout: 420 msec (0x002a) >> Master clock accuracy: 0x00 >> @ Connect Failed: F1:6F:DE:EC:F1:D6 (2) status 0x02 >> < HCI Command: LE Set Scan Parameters (0x08|0x000b) plen 7 >> [hci0] 24.282482 >> Type: Passive (0x00) >> Interval: 60.000 msec (0x0060) >> Window: 30.000 msec (0x0030) >> Own address type: Public (0x00) >> Filter policy: Ignore not in white list (0x01) >> > HCI Event: Command Complete (0x0e) plen 4 >> > [hci0] 24.282992 >> LE Set Scan Parameters (0x08|0x000b) ncmd 1 >> Status: Success (0x00) >> < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 >> [hci0] 24.283021 >> Scanning: Enabled (0x01) >> Filter duplicates: Enabled (0x01) >> > HCI Event: Command Complete (0x0e) plen 4 >> > [hci0] 24.283990 >> LE Set Scan Enable (0x08|0x000c) ncmd 1 >> Status: Success (0x00) >> > HCI Event: LE Meta Event (0x3e) plen 36 >> > [hci0] 26.283994 >> LE Advertising Report (0x02) >> Num reports: 1 >> Event type: Connectable undirected - ADV_IND (0x00) >> Address type: Random (0x01) >> Address: F1:6F:DE:EC:F1:D6 (Static) >> Data length: 24 >> Flags: 0x05 >> LE Limited Discoverable Mode >> BR/EDR Not Supported >> Name (complete): Espruino NRF51822DK >> RSSI: -46 dBm (0xd2) >> < HCI Command: LE Set Scan Enable (0x08|0x000c) plen 2 >> [hci0] 26.284088 >> Scanning: Disabled (0x00) >> Filter duplicates: Disabled (0x00) >> > HCI Event: Command Complete (0x0e) plen 4 >> > [hci0] 26.284989 >> LE Set Scan Enable (0x08|0x000c) ncmd 1 >> Status: Success (0x00) >> < HCI Command: LE Create Connection (0x08|0x000d) plen 25 >> [hci0] 26.285068 >> Scan interval: 60.000 msec (0x0060) >> Scan window: 30.000 msec (0x0030) >> Filter policy: White list is not used (0x00) >> Peer address type: Random (0x01) >> Peer address: F1:6F:DE:EC:F1:D6 (Static) >> Own address type: Public (0x00) >> Min connection interval: 50.00 msec (0x0028) >> Max connection interval: 70.00 msec (0x0038) >> Connection latency: 0x0000 >> Supervision timeout: 420 msec (0x002a) >> Min connection length: 0.000 msec (0x0000) >> Max connection length: 0.000 msec (0x0000) >> > HCI Event: Command Status (0x0f) plen 4 >> > [hci0] 26.285982 >> LE Create Connection (0x08|0x000d) ncmd 1 >> Status: Success (0x00) >> < HCI Command: LE Create Connection Cancel (0x08|0x000e) plen 0 >> [hci0] 28.289490 >> > HCI Event: Command Complete (0x0e) plen 4 >> > [hci0] 28.290991 >> LE Create Connection Cancel (0x08|0x000e) ncmd 1 >> Status: Success (0x00) >> > HCI Event: LE Meta Event (0x3e) plen 19 >> > [hci0] 28.292966 >> LE Connection Complete (0x01) >> Status: Unknown Connection Identifier (0x02) >> Handle: 32 >> Role: Master (0x00) >> Peer address type: Random (0x01) >> Peer address: F1:6F:DE:EC:F1:D6 (Static) >> Connection interval: 67.50 msec (0x0036) >> Connection latency: 0.00 msec (0x0000) >> Supervision timeout: 420 msec (0x002a) >> Master clock accuracy: 0x00 >> @ Connect Failed: F1:6F:DE:EC:F1:D6 (2) status 0x02 >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" >> in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
