Configuring Raspberry pi 3 as border router error.

[Haaris]

Hey, I'm using raspberry pi 3 model b, with the rasbian strech os running in it. I have followed the tutorial provided by nordic using this link for BLE over IPv6. When I do the fifth step it shows me make file errors. I'll attach the screenshot of the errors to make more sense of it. The previous steps given in the tutorial runs normally without any error, but I'm stuck at this. Raspberry pi 3 model B uses Broadcom BCM2837 which is 64-bit so I have selected the x64-bit version in the 2nd step 

export CCPREFIX=/path/to/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-

I have no knowledge about make files so I can't really figure out what's happening any help or guidance would be great.

Thanks

and the make errors 

[Jørgen Holmefjord]

No worries! Did you get it working now?

[Haaris]

Yes, I'm able to connect my nrf52832 with raspberry pi 3. I just wanted to clarify one thing. When I enter the command "mount -t debugfs none /sys/kernel/debug" this shows up :

is this ok ? because I enter the rest of the commands and no error shows up.  

[Jørgen Holmefjord]

That is good to hear! Yes, as the message say, it is already mounted and does not need to be mounted again. You can ignore this command if it is already mounted.

[Haaris]

I'm able to ping it YAAAAAY !!! also I wanted to know how many nrf52 nodes can be handled by my raspberry pi 3 border router at a time.

[Jørgen Holmefjord]

I do not know exactly how many concurrent connections the RPi 3 can handle, but a typical number is 8 connection. The limitation is most likely in the BLE HW, not in the software. RPi 3 have a BCM43438 combined WiFi/Bluetooth chip, you might find some details in the datasheet, or by asking on a Raspberry forum.