RE: nrf51 SDK 5.2.0, S120 examples and gcc

lankong525 — Sun, 23 Mar 2014 18:40:34 GMT

lankong525 @ qq.com

RE: nrf51 SDK 5.2.0, S120 examples and gcc

lankong525 — Sun, 23 Mar 2014 18:39:08 GMT

Do you have nRF51 SDK 5.2.O and s120 softdevice? Could you send them to my email?I also want to studying the examples for S120 .My email is lankong525@qq.com

RE: nrf51 SDK 5.2.0, S120 examples and gcc

mtsunstrum — Wed, 19 Mar 2014 19:44:02 GMT

Most example projects in the SDK were not built under gcc, hence you will see there are no gcc subdirectory/makefile/....

But it is very much possible. To start, you can follow the general instructions in AN-29.

I am just in the process of setting up a S120-based project running under Windows/GCC/Eclipse.

I am "porting" [nrf51822\Board\nrf6310\s120\experimental\ble_app_multilink_central] application to pca10001 device (nRF51822 Evaluation Kit). It runs right now, but I have not yet gotten to a step where I can connect to a peripheral. Still trying to understand the sample code better ...

Few things to note:

you will have to create your own gcc Makefile to get started. I copied another example, and edited it from there.
Setup information in AN-29 is a bit light/incomplete. But if you are proficient in setting up software tool environments, you can work your way through it
I recommend putting nRF51 SDK 5.2.0 into a directory path that has no spaces in it. By default, the SDK .msi installer puts spaces in it.
"experimental" S120 projects have their own "common" subfolder, which I believe you are to use the files in there, versus files found in the SDK's "sd_common" subfolder.
with existing Makefile.common file setup, it appears to not handle being able to compile C files in a subfolder such as "common". (Could be limitations in my own knowledge). I had to copy those "common" files and place them directly into my projects source folder (right below gcc subfolder)
various things in S120 examples and SDK prevented compiling right away. (SDK function prototype errors, missing #define #include statements, ...)
copy gcc_startup_nrf51.s file into your project directory, and edit for your needs. For my sample project, the build linker indicated I was out of RAM. Had to edit this file to reduce default Heap_Size.

Thx, Martin