spukhafte-cdce9xx 0.9.1

Python3 I2C Driver & Application for TI CDCE9XX Clock Generators

TI CDCE9XX Clock Generator Driver and Application for Python3

This Python3 command line tool and library controls any of the Texas Instruments CDCE9xx family of programmable spread-spectrum clock generators on an I2C bus:

• CDCE913/CDCEL913: 1 PLL, 3 Outputs
• CDCE925/CDCEL925: 2 PLLs, 5 Outputs
• CDCE937/CDCEL937: 3 PLLs, 7 Outputs
• CDCE949/CDCEL949: 4 PLLs, 9 Outputs

Features and Benefits

• One class instatiates objects for entire family of devices
• Calculates PLL and PDIV configurations given input and desired output frequencies
• Excludes PLL configurations with VCO harmonics in sensitive bands (like GPS)
• Read and write individual registers by name
• Export and import configurations in JSON format
• Detects platform and uses appropriate I2C bus

Dependencies

Requires:

• Python >= 3.7
• smbus >= 1.1
• Adafruit-PlatformDetect >= 3.19.3

Installation

pip3 install spukhafte-cdce9xx

Usage

Command line tool:

cdce9xx -h

or in a Python3 program:

from spukhafte.cdce9xx import CDCE9xx

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please update tests as appropriate.

License

MIT