I2C slave using PRU

Does anyone know of a standard example piece of PRU code that acts as an I2C slave?

I see another post about using the PRU for an I2C slave driver. I’m wondering if there exists some standard piece of PRU code that acts as an I2C slave? I’m working on an older TI part, the DA830, which apparently uses the PRU as an I2C slave driver but no source is available. I’m less than familiar with all of the other possible TI code bases.