Port Build Environment from FX30 3G to FX30 LTE

IoT Gateways FX30
1

Hi,

We have an existing build environment for the FX30 3G with Legato and our custom C applications (not Legato one).
Is there any documentation or procedure to follow to port/adapt our environment to build our FW for the FX30 4G (wp77)?

Thank you in advance if you have any informations,
Guillaume

2

@g.amaudric

There isn’t a guide as such what are you looking for? Couple of points I will make.

  • Dev studio has been obsoleted now in favour of VS Code.
  • The repository that dev studio is no longer being updated with newer versions of the Legato.
  • The repository being used now is Leaf.
  • To develop with for the FX30 LPWA and the old repository you could use the Legato version for the WP7702 but this is not the official path.

Regards

Matt

3

Hi Matt, thanks you for your answer.

We successfully insert our recipes (by editing/updating some ) on the existing mdm9x28 recipes (via a .bbappend to) but now we are facing an error, on the image generation:
swi-mdm9x28-wp/mdm9x28-image-minimal-swi-mdm9x28-wp-20200318133622.rootfs.2k.ubifs" is 52695040, which is larger than volume size 39845888

It seem that there are too many data (default sierra + our customs) on this partition, this part work properly for the FX30. If I remove our packages from the image it generate all the cwe properly.

How many remaining spaces is available for user application on the mdm9x28-image-minimal?

What is the proper new way to add our packages?

Regards,
Guillaume

4

@g.amaudric

That’s a pretty big question. Can’t really give youy a detailed answer other than to push you to the generic Legato documentation.

https://docs.legato.io/latest/toolsBuild.html

Regards

Matt

5

Hi Matt,
After some investigations on the compilation steps, it seem that my problem (too much data to fit in the cwe) is produced by a major difference between the FX30 3G and 4G: The partition type. On the FX30 4G ubifs is used but the FX30 3G use squashfs.

Is there a “clean” way to use the squashfs (which have a better compression ratio) on the FX30 4G?

Regards,
Guillaume