Multilink example with nRF Connect

RE: Multilink example with nRF Connect

Simon — Wed, 17 Nov 2021 19:13:46 GMT

Do you still see this? I'm not able to reproduce this. I added the changes I provided in my initial reply, then built and flashed the sample onto an nRF52840 DK. Then I programmed the BLE peripheral UART sample onto another chip and was able to connect to it.

Here is the output from the central_multilink sample:

*** Booting Zephyr OS build v2.6.99-ncs1  ***
Bluetooth initialized
Scanning successfully started
Device found: DC:D8:E2:F6:BC:64 (random) (RSSI -22)
Scanning successfully started
Connected (1): DC:D8:E2:F6:BC:64 (random)
Security changed: DC:D8:E2:F6:BC:64 (random) level 2
LE conn param req: DC:D8:E2:F6:BC:64 (random) int (0x0018, 0x0028) lat 0 to 42
LE conn param updated: DC:D8:E2:F6:BC:64 (random) int 0x0028 lat 0 to 42

Best regards,

Simon

RE: Multilink example with nRF Connect

nda — Wed, 10 Nov 2021 14:27:39 GMT

Adding to prj.conf

CONFIG_BT_MAX_CONN=20

CONFIG_BT_SMP=y

helped to compile the project. But compiled programm doesnot work. Starting debug:

Please check TERMINAL tab (gdb-server) for output from C:\Program Files (x86)\SEGGER\JLink\JLinkGDBServerCL.exe

Launching server: "C:\Program Files (x86)\SEGGER\JLink\JLinkGDBServerCL.exe" "-singlerun" "-nogui" "-if" "swd" "-port" "50000" "-swoport" "50001" "-telnetport" "50002" "-device" "nRF52840_xxAA" "-select" "usb=683711198" "-rtos" "C:\Program Files (x86)\SEGGER\JLink\GDBServer\RTOSPlugin_Zephyr.dll"

Launching GDB: "c:\Nordic\v1.7.0\toolchain\opt\bin\arm-none-eabi-gdb.exe" "-q" "--interpreter=mi2"

undefinedc:\Nordic\v1.7.0\toolchain\opt\bin\arm-none-eabi-gdb.exe: warning: Couldn't determine a path for the index cache directory.

Reading symbols from c:\Nordic\Apps_WS_170_tst1\mmm\build\zephyr\zephyr.hex...

(No debugging symbols found in c:\Nordic\Apps_WS_170_tst1\mmm\build\zephyr\zephyr.hex)

0x00011c3a in ?? ()

Program stopped, probably due to a reset and/or halt issued by debugger

add symbol table from file "c:/Nordic/Apps_WS_170_tst1/mmm/build/zephyr/zephyr.elf"

(y or n) [answered Y; input not from terminal]

Reading symbols from c:/Nordic/Apps_WS_170_tst1/mmm/build/zephyr/zephyr.elf...

Resetting target

Run to main timed out.

[New Remote target]

Thread

2 received signal SIGTRAP, Trace/breakpoint trap.

[Switching to Remote target]

0x00003958 in ?? ()

RE: Multilink example with nRF Connect

Simon — Mon, 08 Nov 2021 21:46:38 GMT

Try applying these changes to the central_multilink sample, then you should be able to build it with the nrf52840 DK without any warnings:

diff --git a/samples/bluetooth/central_multilink/prj.conf b/samples/bluetooth/central_multilink/prj.conf
index 68f8ca16f2..9f250af88f 100644
--- a/samples/bluetooth/central_multilink/prj.conf
+++ b/samples/bluetooth/central_multilink/prj.conf
@@ -3,9 +3,8 @@ CONFIG_BT_CENTRAL=y
 CONFIG_BT_AUTO_PHY_UPDATE=n
 CONFIG_BT_PRIVACY=y
 
-CONFIG_BT_MAX_CONN=62
-
+CONFIG_BT_MAX_CONN=20
 # CONFIG_BT_GATT_CLIENT=y
 
-# CONFIG_BT_SMP=y
+CONFIG_BT_SMP=y
 # CONFIG_BT_MAX_PAIRED=62

Best regards,

Simon