SDAA427 July   2026 AFE7900 , AFE7901 , AFE7903 , AFE7906 , AFE7950 , AFE7950-SP , AFE7951 , AFE7953 , AFE7954 , AFE7955 , AFE7958

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Linux Kernel Driver
    1. 2.1 Linux Kernel Driver using PetaLinux Tools
    2. 2.2 Linux Kernel Driver Using Yocto Project
      1. 2.2.1 Overview of the Yocto Project
      2. 2.2.2 Host System Requirements
      3. 2.2.3 Setting Up a Yocto Build Environment
      4. 2.2.4 Configuring Board Specific Layers
      5. 2.2.5 Integrating the AFE79xx Yocto Layer
      6. 2.2.6 Verifying the Integration
      7. 2.2.7 Troubleshooting
    3. 2.3 Preparing Linux Boot Images
    4. 2.4 Operating the AFE79xx Device from User Space
  6. 3Building the AFE79xx SDK in Application Layer
    1. 3.1 Building Linux Kernel Without AFE79xx SDK using PetaLinux Tools
    2. 3.2 Integrating SPI with AFE79xx in User Space
  7. 4Reference Design for ZCU102 FPGA with Processor and SPI
    1. 4.1 Configuring the Zynq Processor
    2. 4.2 Configuring the SPI Interface
    3. 4.3 Generating Hardware Description
    4. 4.4 Booting ZCU102 Board with SD Card
  8. 5Summary
  9. 6References

3 Building the AFE79xx SDK in Application Layer

This section describes building the AFE79xx SDK as a user-space application, providing an alternative integration method to the in-tree kernel driver approach covered in Building the AFE79xx SDK in Application Layer. In this approach, the complete AFE79xx driver functionality is implemented in user space rather than kernel space, communicating directly with the hardware through SPI. This method offers greater flexibility for development and debugging, as user-space applications do not require kernel recompilation or system reboots for updates.