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Not getting acknowledgement on I2C2 of DM814x processor

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Hi,

We are using DM8148 ( Part Number: TMS320DM8148BCYE0 ) in one of our project.

We have connected temperature sensor ( Part Number: TCN75AVUA ) with DM8148 through I2C-2, which was configured with 400khz of clock.

We are not able to detect/read/write temperature sensor on I2C-2 by i2cdetect/i2cget/i2cset, When we connect the same IC on I2C-0 lines of DM8148 on the same hardware we are able to detect/read/write the same temperature sensor on I2C-0, please find relevant waveforms in the attachment.

When we connect the Temperature sensor on I2C-2 line we are getting a glitch after ACK bit. As per waveform below we are getting one glitch on the SDA line of I2C-2 at falling edge of 9th clock pulse, after that processor is not able to communicate with slave device. We are not able to Detect, Set or Write the Temperature sensor on I2C-2 lines of DM8148 processor.

Please provide suggestions for the I2C-2 scenario, thanks in advance for the support.


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