10.1 How to Invoke the CLA Compiler

The Control Law Accelerator (CLA) compiler is also invoked using the cl2000 command. Files that have a .cla extension are recognized by the compiler as CLA C files. The shell invokes separate CLA versions of the compiler passes to generate CLA-specific code. The --cla_support option is also required to assemble the output from the CLA code generator.

If you use the --cla_default option, files with an extension of .c are also compiled as CLA files.

Support is provided for Type 0, Type 1, and Type 2 CLA.

The object files generated by the compile can then be linked with other C28x objects files to create a combined C28x/CLA program.

To invoke the CLA compiler, enter:

cl2000 --cla_support=[cla0|cla1|cla2] [other options] file.cla

Figure 10-1 CLA Compilation Overview

Important facts about CLA C files:

Files with .cla extension compile using a different parser, optimizer, and code generator.
cl2000 does not support compiling files using both the C and CLA compilers in a single invocation.
C28X/CLA builds requires linker command file changes to accommodate CLA compiler-generated sections and scratchpad area.