Hi Sean,
Please see below description of C1406. I extracted them from help manual.
========================================================
Freescale HC08 Compiler Messages: C1406: Illegal use of identifierList
Description
A function prototype declaration had formal parameter names, but no types were provided for the parameters.
Example
Tips
Declare the types for the parameters.
==========================================================
I also made a video of how to correct it, please see attached.
Have a great day,
Jennie Zhang
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------