RPI 4B Flashing LED Test Compile Fail

canary_wharfe · Post by **canary_wharfe** » Thu Apr 30, 2026 9:25 pm

Just purchased the RPI/PICO component bundle and did a quick LED flash test using the RPI 4B.
Simulation is fine. Build to HEX compile fails immediately.
RPI_CAL_String.c fail

Don't think the problem is my toolchain. Could someone quickly check.
All the files are attached in the zip.

Thanks
Charles

Post by **LeighM** » Thu Apr 30, 2026 9:45 pm

I've not had chance to check your zip yet.
But have you tried a full database update?
The CAL string files have had some changes recently.

canary_wharfe · Post by **canary_wharfe** » Thu Apr 30, 2026 10:49 pm

Yes I just did a full update and the compilation error is still there unfortunately.

Post by **LeighM** » Fri May 01, 2026 9:43 am

Looks like RPI_CAL_String.c is missing the FCLsz_TEMPSTR fix and other updates - one for Ben

Post by **BenR** » Fri May 01, 2026 10:11 am

Hopefully fixed for you now.

Thanks for letting us know.

canary_wharfe · Post by **canary_wharfe** » Fri May 01, 2026 10:46 am

Yes, all working now. Thanks Ben.

RPI 4B Flashing LED Test Compile Fail

RPI 4B Flashing LED Test Compile Fail

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Re: RPI 4B Flashing LED Test Compile Fail

Re: RPI 4B Flashing LED Test Compile Fail

Re: RPI 4B Flashing LED Test Compile Fail

Re: RPI 4B Flashing LED Test Compile Fail