Hi Gary,

The following OS versions and toolchains are supported for the NRF51_MICROBIT:

I'm not sure why that information is not populating correctly. Are you running mbed detect from within an Mbed project? Also, can you please provide me your Mbed CLI version? mbed-cli --version

Thanks!

Hi Jenny,

Yes I think so. Having trouble using the online compiler, I followed the video about how to get started with the command line tool.

The cli version is:

C:\mbed\blinky\mbed_blinky>mbed-cli --version
1.7.2

My main.c is:

#include "mbed.h"

DigitalOut myled(LED2);

int main() {
    while(1) {
        myled = !myled;
        wait(0.5);
    }
}

When I go to compile it, I get a lot of errors:

C:\mbed\blinky\mbed_blinky>mbed compile main.c -t mbed OS 2 -m NRF51_MICROBIT
usage: make.py [-h] [-m MCU] [-t TOOLCHAIN] [--color] [--cflags CFLAGS]
               [--asmflags ASMFLAGS] [--ldflags LDFLAGS] [-c]
               [--profile PROFILE] [--app-config APP_CONFIG] [-p PROGRAM]
               [-n PROGRAM] [-j JOBS] [-v] [--silent] [-D MACROS]
               [-S [{matrix,toolchains,targets}]] [-f GENERAL_FILTER_REGEX]
               [--stats-depth STATS_DEPTH] [--automated] [--host HOST_TEST]
               [--extra EXTRA] [--peripherals PERIPHERALS]
               [--dep DEPENDENCIES] [--source SOURCE_DIR]
               [--duration DURATION] [--build BUILD_DIR] [-N ARTIFACT_NAME]
               [--ignore IGNORE] [-d DISK] [-s SERIAL] [-b BAUD] [-L] [--rpc]
               [--usb] [--dsp] [--testlib] [--build-data BUILD_DATA]
               [-l LINKER_SCRIPT]
make.py: error: argument -t/--tool: mbed is not a supported toolchain. Supported toolchains are:
ARM,     ARMC6,   GCC_ARM, IAR,     uARM
[mbed] ERROR: "C:\Python27\python.exe" returned error code 2.
[mbed] ERROR: Command "C:\Python27\python.exe -u C:\mbed\blinky\mbed_blinky\.temp\tools\make.py -t mbed -m NRF51_MICROBIT --source . --build .\BUILD\NRF51_MICROBIT\MBED main.c OS 2" in "C:\mbed\blinky\mbed_blinky"
---

Many thank,

Gary

Hi Gary, please try the following command instead: mbed compile -t gcc_arm -m NRF51_MICROBIT

Also, here is a quickstart guide for the Mbed CLI: https://os.mbed.com/docs/latest/tutorials/quick-start-offline.html

- Jenny, team Mbed

Hi Jenny,

Sorry I haven't been back to you sooner.

Many thanks for your help again. I think we're getting closer. I tried your command line arguments and received this message:

C:\mbed\blinky\mbed_blinky>mbed compile -t gcc_arm -m NRF51_MICROBIT Using targets from C:\mbed\blinky\mbed_blinky\mbed\f9eeca106725\targets.json Building project mbed_blinky (NRF51_MICROBIT, GCC_ARM) Scan: mbed_blinky Compile [100.0%]: main.cpp Link: mbed_blinky c:/program files (x86)/gnu tools arm embedded/6 2017-q2-update/bin/../lib/gcc/arm-none-eabi/6.3.1/../../../../arm-none-eabi/lib/thumb/v6-m/crt0.o: In function `_start': (.text+0x52): undefined reference to `wrap_exit' collect2.exe: error: ld returned 1 exit status [ERROR] c:/program files (x86)/gnu tools arm embedded/6 2017-q2-update/bin/../lib/gcc/arm-none-eabi/6.3.1/../../../../arm-none-eabi/lib/thumb/v6-m/crt0.o: In function `_start': (.text+0x52): undefined reference to `wrap_exit' collect2.exe: error: ld returned 1 exit status

[mbed] ERROR: "C:\Python27\python.exe" returned error code 1. [mbed] ERROR: Command "C:\Python27\python.exe -u C:\mbed\blinky\mbed_blinky\.temp\tools\make.py -t gcc_arm -m NRF51_MICROBIT source . build .\BUILD\NRF51_MICROBIT\GCC_ARM" in "C:\mbed\blinky\mbed_blinky" -

So I think it compiled ok, but there could be a linker issue?

All the best,

Gary