C51: Error C202 Using XBYTE Absolute Addressing

Information in this article applies to:

• C51 All Versions

QUESTION

When I use the XBYTE macro I receive the following compiler error

C202: 'XBYTE' : undefined identifier

What is wrong with my program?

ANSWER

You receive this error because the XBYTE macro is not defined. You must include the ABSACC.H header file in the source file to define the XBYTE macro for absolute memory accesses.

MORE INFORMATION

• Refer to Absolute Access Macros in the Cx51 User's Guide.
• Refer to XBYTE in the Cx51 User's Guide.

SEE ALSO

• C51: Reserving Memory Accessed With XBYTE and XWORD
• C51: XWORD Macro Questions

Last Reviewed: Thursday, February 25, 2021