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Diffstat (limited to 'pw_emu/config.rst')
| -rw-r--r-- | pw_emu/config.rst | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/pw_emu/config.rst b/pw_emu/config.rst index 407d7bf58..41d1b2fe4 100644 --- a/pw_emu/config.rst +++ b/pw_emu/config.rst @@ -11,8 +11,9 @@ The emulators configuration is part of the Pigweed root configuration file (``pigweed.json``) and reside in the ``pw:pw_emu`` namespace. Projects can define emulation targets in the Pigweed root configuration file and -can also import predefined targets from other files. The ``pw_emu`` module -provides a set of targets as examples and to promote reusability. +can also import predefined targets from other files (configuration +fragments). The ``pw_emu`` module provides a set of targets as examples and to +promote reusability. The target configuration allows users to start other programs before or after starting the main emulator process. This allows extending the @@ -144,3 +145,11 @@ The following expressions are substituted in the ``pre-start-cmd`` and * ``$pw_emu_channel_path{channel-name}``: replaces the statement with the path for the given channel name; the channel type should be ``pty`` + + +The followng expressions are substituted in configuration strings, including +configuration framents: + +* ``$pw_env{envvar}``: replaces statement with the value of the ``envar`` + environment variable; if the variable does not exists in the environment a + configuration error is raised |