> ## Documentation Index
> Fetch the complete documentation index at: https://dragonwingdocs.qualcomm.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Real-Time Subsystem documentation

Understand the Real-Time Subsystem (RTSS) on Qualcomm® Linux® including how to configure and integrate the RTSS components, and use its supported features.

## **Get started with RTSS**

<CardGroup cols={2}>
  <Card title="RTSS overview" href="https://docs.qualcomm.com/doc/80-80023-42/topic/rtss-overview.html">
    Learn about the product features and its functionality.
  </Card>

  <Card title="RTSS hardware architecture" href="https://docs.qualcomm.com/doc/80-80023-42/topic/rtss-architecture.html">
    Learn about the key components of the hardware architecture.
  </Card>

  <Card title="RTSS software architecture" href="https://docs.qualcomm.com/doc/80-80023-42/topic/rtss-architecture.html">
    Learn about the key components of the software architecture.
  </Card>
</CardGroup>

## **Build RTSS**

<CardGroup cols={2}>
  <Card title="Build RTSS firmware" href="https://docs.qualcomm.com/doc/80-80023-42/topic/build-firmware.html">
    Learn how to build RTSS firmware.
  </Card>

  <Card title="Add partitions to SPINOR flash memory" href="https://docs.qualcomm.com/doc/80-80023-42/topic/add-partition-spi-nor.html">
    Learn how to create and partition the SPINOR flash memory.
  </Card>
</CardGroup>

## **Interfaces overview**

<CardGroup cols={1}>
  <Card title="RTSS interfaces overview" href="https://docs.qualcomm.com/doc/80-80023-42/topic/configure-peripherals.html">
    Learn about the default QUP configurations, RTSS\_QUP assignments, and QUP serial engine customization.
  </Card>
</CardGroup>

## **Troubleshoot RTSS**

<CardGroup cols={2}>
  <Card title="Debug RTSS" href="https://docs.qualcomm.com/doc/80-80023-42/topic/debug-rtss.html">
    Use sample logs to debug RTSS issues.
  </Card>

  <Card title="RTSS test commands" href="https://docs.qualcomm.com/doc/80-80023-42/topic/test-commands.html">
    Run various RTSS-supported unit test commands to test drivers.
  </Card>
</CardGroup>

## **References**

<CardGroup cols={1}>
  <Card title="References" href="https://docs.qualcomm.com/doc/80-80023-42/topic/appendix.html">
    Know about the related documents and definitions.
  </Card>
</CardGroup>