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6 years, 4 months ago.
How do I compile mbed-dev library with mbed-cli?
Is there a way for the mbed-cli to compile with mbed-dev? I tried using mbed compile with the library, but could not find the build source for mbed-dev.
I also tried generating a Makefile that would generate the object files using this example as a guide: https://github.com/0xc0170/mbed_gcc_makefile However, I was not able to get it working since the folder tree differed the supported boards in the example above.
I am working with mbed os2 since it supports both the BBC micro:bit and the NRF52840_DK boards that I am working with.
1 Answer
6 years, 4 months ago.
Hi there,
It is possible to compile projects with Mbed OS 2 and mbed-dev using the Mbed CLI, here's an example use case:
mbed import https://os.mbed.com/teams/mbed/code/mbed_blinky/ cd mbed_blinky mbed remove mbed mbed add https://os.mbed.com/users/mbed_official/code/mbed-dev/ // You can export to GCC Makefiles for your board with the following command mbed export -i gcc_arm -m kl25z // You can compile your project with your desired toolchain and board with the following command mbed compile -t gcc_arm -m kl25z
However, since you are using the NRF52840_DK board, I am only able to compile projects with the Mbed OS 2 library for this board and not the mbed-dev library since there doesn't seem to be any target information available for the NRF52840_DK board within the mbed-dev library.
You can use the following command to compile for the NRF52840_DK board with Mbed CLI if you are developing a project that uses the regular Mbed OS 2 library: mbed compile -t gcc_arm -m NRF52840_DK
Please let me know if you have any questions!
- Jenny, team Mbed
If this solved your question, please make sure to click the "Thanks" link below!
What target information would I need to modify the mbed-dev library with to get it to export to the NRF52840_DK board?
Since I am able to export to the NRF52840_DK with Mbed OS2, would it be possible to extract the information from the OS2 library and put it in the mbed-dev libary?
posted by 13 Jul 2018Hi again,
I am currently troubleshooting why I am unable to compile mbed-dev with the NRF52840_DK board. I am getting the following error which is due to one of the python scripts: ConfigException: Invalid prefix 'target' for parameter name 'target.bootloader_img' in 'library:softdevice[*]'
Looking into it
- Jenny, team Mbed
posted by 13 Jul 2018I got the same error as well. Please let me know if you have any updates.
Thanks!
posted by 16 Jul 2018Hi again,
I've filed a bug report with the Mbed OS team regarding the issue with mbed-dev and this board. However, I've been able to resolve the issue in the meantime with the following steps:
Import the Mbed OS 2 Blinky with Mbed CLI, then remove Mbed OS 2 and add mbed-dev:
mbed import https://os.mbed.com/teams/mbed/code/mbed_blinky/ cd mbed_blinky mbed remove mbed mbed add https://os.mbed.com/users/mbed_official/code/mbed-dev/
In your project directory, open the hidden .temp folder for the Mbed OS 2 tools and remove the /tools folder. Then, from an Mbed OS 5 project such as mbed-os-example-blinky copy the tools folder from /mbed-os and paste it into your .temp folder in the Mbed OS 2 project. Change the targets.json path in the .temp/tools/targets/__init__.py file to
__targets_json_location_default = os.path.join(os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))), 'mbed-dev', 'targets', 'targets.json')
Finally, remove "CRYPTOCELL310" feature from MCU_NRF52840 target in targets.json within the /mbed-dev/targets folder.
Then you can successfully compile:
mbed compile -t gcc_arm -m nrf52840_dk
I apologize for this wonky workaround. Keep your eye out for a fix with the Mbed OS 2 tools!
- Jenny, team Mbed
posted by 18 Jul 2018