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Silicon Labs ClockBuilder Desktop software should be used to prepare the register file.  Projects are included on the most reference designs.

Download: ClockBuilder Pro

Procedure:

  1. Install and start ClockBuilder
  2. Open "/misc/SI5338/Si5338-RevB-Project.slabtimeproj"
  3. Modify settings
  4. Export → Register File → select C code header → save to file


For older Projects:

Download:  ClockBuilder Desktop for SI5338

Procedure:

  1. Install and start ClockBuilder
  2. Select SI5338
  3. Options → Open register map file
    Note: File location <design name>/misc/Si5338/RegisterMap.txt
  4. Modify settings
  5. Options → save C code header files
  6. Replace Header files from modified TE FSBL template or SCU FPGA projects with generated file

Note: SI338 is now included into Clock Builder Pro. Projects for this software are not available, but will be included in the future

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Procedure:

  1. working in process

I2C Configuration

Volatile memory

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Examples are included in the reference designs.

Procedure:

  1. Replace Header files from modified FSBL template or SCU FPGA projects with exported header file and regenerate software.

Non-volatile memory (NVM)

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Note

The input termination for Si5338 differential clock inputs if available on B2B connectors on the Trenz Electronic Modules are usually not terminated on the Module. All termination must be on the base board. Please consult Module schematic and AN408.