Enable I2C clock stretching SMBus

Robotics & Edge Computing Jetson & Embedded Systems Jetson Orin NX
1

Hi,

How do I enable I2C clock stretching on for a Standard Smart Battery on the Jetson Orin NX with Jetpack 6.0 / L4T 36.3.0?

I’ve already tried this, but that didn’t work. The flag in the device tree is not set in the driver, so there seems to be no point in setting it.
In the driver (i2c-tegra.c) there is no logic for reading the device tree “nvidia,disable-multi-pkt-mode” property.

Edit: the driver does not support setting the I2C_TLOW_SEXT register. After setting it with devmem2, it resets to its default after using the i2cdetect tool.

Thanks

7

There is no update from you for a period, assuming this is not an issue anymore.
Hence, we are closing this topic. If need further support, please open a new one.
Thanks

Is this still an issue to support? Any result can be shared?