NRF52: compiling master without SoftDevice

[drahnr]

[X] Question
[ ] Enhancement
[ ] Bug

Version: https://github.com/nello-io/mbed-os/#80e109370ddd3156126da447ca19852c53fcb90d

Unclear how to disable

I followed

https://github.com/ARMmbed/mbed-os/pull/5997/commits/9b98351b7ddc7659dfcc09bd3b78705a0000568e

Which resulted in this custom target:

{
    "QQQ": {
        "supported_form_factors": ["ARDUINO"],
        "inherits": ["MCU_NRF52832"],
        "macros_add" : ["CONFIG_NFCT_PINS_AS_GPIOS","MBED_TICKLESS"],
        "macros_remove" : ["BOARD_PCA10040"],
        "extra_labels_remove" : ["SOFTDEVICE_COMMON","SOFTDEVICE_S132"],
        "release_versions": ["2", "5"],
        "device_has_add": ["FLASH"],
        "device_name": "nRF52832_xxAA",
        "features_remove": [],
        "MERGE_BOOTLOADER": false,
        "MERGE_SOFTDEVICE": false
    },

but it complains about a missing device.h from platform.h

According to this the adjustments are non-trivial and I am not quite sure what exactly is worng in the above https://github.com/ARMmbed/mbed-os/pull/6826

Being stuck to master until 5.9 since I need features from 5.8 combied with NRF52 without Softdevice.

Related: https://github.com/ARMmbed/mbed-os/issues/6802

[drahnr]

[Fatal Error] platform.h@29,10: device.h: No such file or directory
[ERROR] In file included from ./mbed-os/drivers/AnalogIn.h:19:0,
                 from ./mbed-os/drivers/AnalogIn.cpp:17:
./mbed-os/platform/platform.h:29:10: fatal error: device.h: No such file or directory
 #include "device.h"
          ^~~~~~~~~~
compilation terminated.

[marcuschangarm]

You need to define your own PinNames.h and device.h for your target. Like this: https://github.com/ARMmbed/mbed-os/tree/master/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_NRF52/TARGET_MCU_NRF52832/TARGET_NRF52_DK

It also looks like you are missing "target.extra_labels_add": ["SOFTDEVICE_NONE"] in your json file.

[drahnr]

@marcuschangarm thanks! I was not aware of that. Since when has this been the case? Does my previous inherit: NRF52_DK solve this issue because device.h and PinNames.h are defined already?

[marcuschangarm]

Does my previous inherit: NRF52_DK solve this issue because device.h and PinNames.h are defined already?

Yes. I cleaned up targets.json and the inheritance in that file so that ideally people can inherit directly from MCU_NRF52832 or MCU_NRF52840 and not from the targets. That way, you can define only the pins that are available on your board that you care about.

Inheriting from MCU_NRF52x also means you are not forced into using these settings: https://github.com/ARMmbed/mbed-os/blob/master/targets/TARGET_NORDIC/TARGET_NRF5x/TARGET_NRF52/mbed_lib.json#L87-L107

but you get the freedom to enable the erratas and set the debug flow control that apply to your target.

[ciarmcom]

ARM Internal Ref: MBOTRIAGE-31

[drahnr]

Can I put the tree regarding TARGET/NRF5/MY_TARGET/{device.h,PinNames.h} anywhere or does it have to reside in the mbed-os folder?

[drahnr]

Also: The above also does not work for using it from within a custom_targets.json - see #7085

[theotherjimmy]

@drahnr You may put it anywhere.

[drahnr]

@theotherjimmy thanks for all the support, much appreciated!