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Silicon Labs ClockBuilder Pro software should be used to prepare the register file. Projects are included on the most reference designs.
Download: ClockBuilder Pro for SI5345
Procedure:
- Install and start ClockBuilder
- Open "/misc/SI5345/Si5345-RevB-0808-02A-Project.slabtimeproj"
- Modify settings
- Export → Register File → select C code header → save to file
Note:
- SI5345-REVB and REVD need different project
- AN1006-Si534x-8x-RevB-RevD-Differences.pdf
- Hint: With CBPro 4.3 and newer REVB is not longer selectable in case you start a new project. In this case open an existing Revision B Project and modify it.
I2C Configuration
Volatile memory
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Therefore SI Clock Builder Pro Software and Clock Builder Pro Field Programmer are necessary.
Procedure:
- Connect GND, I2C-SCL and I2-SDA_SDIO with SI5345 I2C bus of the board.
- Connect USB to PC and Power on the module
- Open Clock Builder Pro and select NVM Program Tool
- Select SI545 project and set correct Host Interface (I2C address and IO Voltage)
- Scan device
- Program NVM
Termination
AN408 describes the input termination options for Si5338.
| 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. |
Links
Links
- Silicon Labs UG286: ClockBuilderPro™Field Programmer Kit
- Si5345-44-42-D-DataSheet.pdf - Data sheet
- Si5345-44-42-D-RM.pdf - Register descriptionSilicon Labs Appnote AN408
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