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I.MX6 interface with ADV7180 and Analog Camera

Question asked by Ganesan Manikandan on Jun 30, 2016
Latest reply on Jun 30, 2016 by Ganesan Manikandan


Hello Sir/Madam,

 

I have been working with the IMX6 Sabre board evaluation kit and the ADV7180 evaluation kit to enable I2C communication between the two. My next step will be to connect an analog camera input to the ADV7180 and get the digital output on a parallel bus.

 

I have been able to successfully see all the power supplies, reset line has been set, the crystal is fine (pixel clock is up) and even see SDA and SCL toggle on the scope at ~80 KHz when I scan for I2C devices. My problem however is, I am not able to see the ADV7180 slave on I2C bus 3 in address 0x42/0x40. I am using the i2cdetect command on Linux Yocto kernel 3.10.53-1.1.0_ga+g496fbe0.

 

Note: I have connected the I2C lines straight to pins 28 and 27 on the ADV7180 and removed R7 and R8 so that I can disconnect ADV7180 from the evaluation kit's I2C bus.

 

Am I missing something here? Please help me. Any feedback will be highly appreciated.

 

 

Thanks in advance.

Gan

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