Unused Variable Warnings on Nuvoton Targers

[matthewg276]

Description of defect

Nuvoton target libraries declare a uint32 variable within a header file (m480_ccap.h and nuc472_cap.h). It does not appear this variable is ever used and because of this, a large number of warnings are generating when compiling these targets since this file is included in M480.h.

Example warning

[Warning] m480_ccap.h@86,17: 'u32EscapeFrame' defined but not used [-Wunused-variable]

Target(s) affected by this defect ?

• NUMAKER_PFM_M487
• NUMAKER_IOT_M487

Potentially NUC472 though I have not verified.

Toolchain(s) (name and version) displaying this defect ?

• Using latest docker image ( ghcr.io/armmbed/mbed-os-env:master-2022.05.21t04.23.55)
• using GCC ARM compiler

What version of Mbed-os are you using (tag or sha) ?

• mbed version 6.17.0

What version(s) of tools are you using. List all that apply (E.g. mbed-cli)

• mbed cli 1 version included in docker container.

How is this defect reproduced ?

• compile blinky program for NUMAKER_IOT_M487

[0xc0170]

cc @ARMmbed/team-nuvoton

[cyliangtw]

@matthewg276 , thank you for raising this issue.
NUC472 not include any capture header file, so NUC472 is fine.
About M487, this warning is fixed in PR #15388 .

[matthewg276]

Confirming this has been fixed in latest master branch. Thank you!