Pin definition A3 missing on REALTEK_RTL8195

[SeppoTakalo]

Description

• Type: Bug
• Related issue: #abc
• Priority: Major

---

Bug

Target
REALTEK_RTL8195A

Toolchain:
GCC_ARM

Expected behavior
Arduino pin names should be defined.

Actual behavior
Pin A3 is missing from:
https://github.com/ARMmbed/mbed-os/blob/master/targets/TARGET_Realtek/TARGET_AMEBA/TARGET_RTL8195A/PinNames.h#L175

[0xc0170]

@ARMmbed/team-realtek

[JanneKiiskila]

This will be blocking the support for mbed-os-example-client and Cloud Client for Realtek board.

[JanneKiiskila]

#5611 PR created to get rid of this problem (at least temporarily). Realtek should review and comment if the NC is a suitable solution for A3. At least it enables compilation again with ST-WIFI-X module included (see tip of master of mbed-os-example-client).

[Archcady]

There is no A3~A5 pins in our Realtek AMEBA board and hence these pins are mapped to NC in mbed_app.json. This is a hardware limitation of our platform. I think this is the best solution from our side.

[JanneKiiskila]

The mbed_app.json doesn't help with the compilation issues, those needs the be in the PinNames.h.

There is a PR that would sort this out already, just need approval and merge.

[SeppoTakalo]

Proper fix would be #5611 because if the board claims to be ARDUINO form factor then all the Arduino pin names should be defined. Otherwise you would break build of some drivers relying on the names.

[Archcady]

I have approved the fix #5611. I think it can be merged now

[JanneKiiskila]

@SeppoTakalo - I think the issue can be closed now?