[ACELL01][ACELL07] Portenta X8/C33/H7 compatibility with Portenta Mid Carrier not clearly communicated

[aliphys]

There are a few inaccuracies in the Portenta Mid Carrier Docs page

• Technically, all interfaces are accessible to a User who wants to hack at it (yay open source!). Yet, we do have a specific OoB experience that we provide support for (see Details)
• There are some limitations in what we can support with the STM32 included inside the Portenta X8, since the peripherals are shared with the i.MX core.
• The GNSS support is not part of the Portenta Mid Carrier, nor is it provided by both version of the Pro 4G module.

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Details

The Portenta Mid Carrier is indeed compatible with the Portenta boards - Portenta C33 (ABX00074), Portenta H7 (ABX00042 and variants) and Portenta X8 (ABX00049). The final customer solution will likely involve the Pro 4G EMEA (SKU: TPX00201) or GNSS (SKU: TPX00200) PCIE boards.

Network connectivity is handled differently between the Portenta C33/H7 (arduino-libraries/Arduino_Cellular/) and the Portenta X8 (Yocto Linux). One is with a Arduino library, the other is via the Linux stack.

Here is the information in a table format:

Portenta Board	Carrier Board	Pro 4G Module	Cellular Support
Portenta C33/H7	Portenta Mid Carrier	EMEA (No GPS)/GNSS (with GPS)	Arduino_Cellular library
Portenta X8	Portenta Mid Carrier	EMEA (No GPS)/GNSS (with GPS)	Yocto Linux

This difference is explained inside the Portenta X8 User Manual https://github.com/arduino/docs-content/blob/42e01e0f82947b8edd85b3450bea4e1de996a6ca/content/hardware/04.pro/boards/portenta-x8/tutorials/01.user-manual/content.md?plain=1#L49-L63

Note that the User Manual conflicts with the statement made here https://github.com/arduino/docs-content/blob/42e01e0f82947b8edd85b3450bea4e1de996a6ca/content/hardware/04.pro/carriers/portenta-mid-carrier/features.md?plain=1#L18