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Using build tools

AN3350

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Doc ID 018512 Rev 2

2.1.2

Setting the PATH environment variable

The PATH variable should include the paths for your eTPU build tools, shown in Example 2.

Toolset represents the name of the folder that contains the command line tools for your build

target.

Example 2 Example of setting PATH

set CWFolder=C:\Program Files\STMicroelectronics\eTPU Build Tools

v1.2

set PATH=%PATH%;%CWFolder%\Bin

2.2

Invoking command-line tools

To compile, assemble, link, or perform some other programming task with the command-line

tools, you type a command at a command line’s prompt. This command specifies the tool

you want to run, what options to use while the tool runs, and what files the tool should

operate on.

The form of a command to run a command-line tool is

tool options files

where tool is the name of the command-line tool to invoke, options is a list of zero or

more options that specify to the tool what operation it should perform and how it should be

performed, and files is a list of files zero or more files that the tool should operate on.

Which options and files you should specify depend on what operation you want the tool to

perform.

The tool then performs the operation on the files you specify. If the tool is successful it

simply finishes its operation and a new prompt appears at the command line. If the tool

encounters problems it reports these problems as text messages on the command-line

before a new prompt appears.

Scripts that automate the process to build a piece of software contain commands to invoke

command-line tools. For example, the make tool, a common software development tool,

uses scripts to manage dependencies among source code files and invoke command-line

compilers, assemblers and linkers.

2.3

Getting help

To show short descriptions of a tool’s options, type this command at the command line:

tool -help

where tool is the name of the eTPU build tools.

To show only a few lines of help information at a time, pipe the tool’s output to a pager

program. For example,

tool -help | more

will use the more pager program to display the help information.

Enter the following command in a Command Prompt window to see a list of specifications

that describe how options are formatted:

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