I2C communication NI-845X error -301740

[Miscreed]

Hello,

I am attempting to communicate with a Gigoptix HXR5104B 4 channel receiver. I am communicating via the SDA and SCL ports on an NI USB-8451x.

I am attempting to read the device identifier register which is 'E0' in hex. I am receiving error -301740 when trying to communicate that happens during the read-write command.

The communication protocol with this device may be different from what I am currently implementing, however, I am unsure what I am doing wrong. I have attached the protocol and my VI as well as the manual for the HXR5104B.

Thank you.

[crossrulz]

Do you have a pull up resistor for both your clock and data lines?  That error points to you are missing them.

[JÞB]

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@crossrulz wrote:

Do you have a pull up resistor for both your clock and data lines?  That error points to you are missing them

Or not enabling them