Texas Instruments TMS320C28x Reference Manual page 621

6) Link the assembled code with the linker command file generated in
Step 2. Relink if necessary to avoid any linker related errors.
7) Assemble or reassemble using the C28x assembler until the assembly is
successful with no errors. The tables in section D.5 will help to resolve
most of the errors during the assembly process. This will prepare a *.obj
file, ready for C28x Linker processing.
8) The Linker output COFF file, *.out, will be the migrated code and should
be ready for Debug and integration.
Recommended Migration Flow
C2xLP Migration Guidelines D-5