Texas Instruments TMS470R1x manual Setting Up the Code Generation Environment

Setting Up the Code Generation Environment

4.3 Setting Up the Code Generation Environment

Before or after you install the code generation tools, you can define environ- ment variables that set certain software tool parameters you normally use. An environment variable is a special system symbol that you define and assign to a string. A program uses this symbol to find or obtain certain types of information.

When you use environment variables, default values are set, making each individual invocation of the tools simpler because these parameters are auto- matically specified. When you invoke a tool, you can use command-line op- tions to override many of the defaults that are set with environment variables.

The code generation tools use the following environment variables:

-A_DIR

-C_DIR

-C_OPTION

-TMP

You can set up the environment variables o the command line or in your .login or .cshrc file (for C shells) or .profile file (for Bourne or Korn shells). To set up these environment variables in your system initialization file, enter the same commands that you would enter on the command line in the file.

In addition to setting up environment variables, you must modify your path statement. The following subsections describe how to modify your path state- ment and how to define the environment variables that the code generation tools use.

Setting Up the Code Generation Tools on an HP Workstation 4-5