Q. ADPD1081 firmware source code error

Hello.

The customer recently received the ADPD1081 source code from ADI.

(File name: ADPDLib_M4_Ref_Package-Rel3.4.5-7Keil.zip)

It is the customer's development environment.

MCU: nRF52840

Compiler: KEIL uvision V2.29

An error occurs when compiling.

<Error message>

linking...

.\_build\nrf52840_xxaa.axf: Error: L6218E: Undefined symbol exit (referred from adifixedpointalgo.o).

Not enough information to list image symbols.

Not enough information to list load addresses in the image map.

Finished: 2 information, 0 warning and 1 error messages.

".\_build\nrf52840_xxaa.axf" - 1 Error(s), 0 Warning(s).

The customer wants to know the cause of the error.

I look forward to your quick response.

Best regards, Leo