greenpak 0.0.30

An easy to use Python API for programming and accessing Renesas's GreenPak SPLD devices.

GreenPak Driver

A Python package to access and program Renesas GreenPak SPLD's.

This Python package provides a simple to use API to read/write/program Renseas GreenPak PLDs over a USB to I2C link.

As of May 2025, the package supports the following USB to I2C interfaces and new ones can be easily added based on the examples in i2c.py:

• I2C Driver (two variants, mini and full.)
• I2C Adapter (four variants, including a bare Raspberry Pico.)
• Bus Pirate (v2, v3 and v4)

Sample usage using an I2C Adapter:

from greenpak import driver, i2c, utils

print("Connecting.")
i2c_driver = i2c.GreenPakI2cAdapter(port="COM17")
gp_driver = driver.GreenpakDriver(i2c_driver, device="SLG46826", control_code=0b0001)

print("Loading configuration.")
data = utils.read_bits_file("test_data/slg46826_blinky_fast.txt")
utils.hex_dump(data)

print("Programming the NVM.")
gp_driver.program_nvm_pages(0, data)

print("Resetting the device.")
gp_driver.reset_device()

For full documentation see https://greenpak.readthedocs.io/en/latest