4 Building DSP Framework on Linux OS Before you compile the DSP-related code, set up the DSP-related toolchains. The DSP framework, DSP codec wrapper, and DSP codec use Xtensa development toolchain.
For details on how to harness the power processing of the DSP by running Zephyr RTOS on the DSP, while running Linux OS on the main Cortex-A core, see the Running Zephyr RTOS on Cadence Tensilica HiFi 4 DSP (AN13970). This covers simple and more complex examples, such as hello_world or IPC samples. In the application note, all examples are explained using the existing drivers and/or frameworks from the Linux OS and Zephyr RTOS.