ARM Technical Support Knowledge Articles

USE OF DUAL DATA POINTERS

Applies to: C51 C Compiler

Answer


Information in this article applies to:


SYMPTOM

When I enable dual data pointer support for my device, I notice no change in the object code generated by the compiler.

CAUSE

The Keil toolset only provides dual data pointer support via the C libraries. It does not generate DDP instructions when compiling user code.

RESOLUTION

If you wish to take advantage of DDP support, use one of the following library functions.

SEE ALSO

Article last edited on: 2005-07-15 10:02:11

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