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Several special requirements exist for running an application from on-chip Flash memory on the TMS320F28xxx. These requirements generally do not manifest themselves during code development in RAM since the Code Composer Studio™ (CCS) debugger can mask problems associated with initialized sections and their linkage in memory. This application report covers the application software modifications needed for execution from on-chip Flash memory. Requirements for both DSP/BIOS™ and non-DSP/BIOS projects are presented. Some performance considerations and techniques are also discussed.