Xtensa Emulation (QEMU)
Overview
The QEMU board configuration is used to emulate the Xtensa architecture. This board configuration provides support for the Xtensa simulation environment.
Programming and Debugging
Use this configuration to run basic Zephyr applications and kernel tests in the QEMU emulated environment, for example, with the Basic Synchronization sample:
# From the root of the zephyr repository
west build -b qemu_xtensa samples/synchronization
west build -t run
This will build an image with the synchronization sample app, boot it using QEMU, and display the following console output:
***** BOOTING ZEPHYR OS v1.8.99 - BUILD: Jun 27 2017 13:09:26 *****
threadA: Hello World from xtensa!
threadB: Hello World from xtensa!
threadA: Hello World from xtensa!
threadB: Hello World from xtensa!
threadA: Hello World from xtensa!
threadB: Hello World from xtensa!
threadA: Hello World from xtensa!
threadB: Hello World from xtensa!
threadA: Hello World from xtensa!
threadB: Hello World from xtensa!
Exit QEMU by pressing CTRL+A x.
Debugging
Refer to the detailed overview about Application Debugging.