Skip to content

MCP960x won't work on hardware I2C busses due to clock stretching bug #5

Open
@codeThatThinks

Description

@codeThatThinks

MCP960x requires clock stretching for all register operations. Pi Zero 2 W has the same SoC as the Pi 3 and therefore does not properly implement clock stretching on hardware I2C busses. MCP960x should be put on its own bitbanged I2C bus using i2c-gpio. Use GPIO15 and GPIO18. External 4.7k pullups need to be added on those pins.

Metadata

Metadata

Assignees

No one assigned

    Labels

    bugSomething isn't working

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions