How to build the LINUX tools?

[ligang]

I develop with MDK. Now, I want to create a bootloader with 12.1? Follow the instruction of the document, I must install micro-ecc, and ....

But as last, we can not get the prebuilt native tools.

I want to know that why the SDK12.1 does not include the micro-ecc, Since We all can be download and compile the lib, we think that nordic have ability to do it better, and the developer will save so many times to do more better product.

and the sdk 12.1 not like the sdk 11 to provide a bootloader to test it.

the only provide

[zhouyu]

I'm using gcc to develop nrf52. I think you could put the gcc tools in /usr/local/. Refer to "yoursdk/components/toolchain/gcc/Makefile.posix". In my case, it is /usr/local/gcc-arm-none-eabi-4_9-2015q1. Then go to the folder where the makefile exists to compile.

[ligang]

I must use the ubuntu 8.1 32bit ?