No I2C signal when scanning on CSI connector

#1

Hi Team,

I tried to run the i2cdetect -y -r 0/1/9 command and used an oscilloscope to capture the I2C signal on I2C bus of J1 connector (I2C4_SCL & I2C4_SDA) but signal is always high. Does it require to configure anything to make this I2C bus working?

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Thank in advance
Thanh

#2

Hi,

Do you have camera attached to the CSI connector?

#3

Hi,

No. We don’t. The I2C bus scanning command i2cdetect should generate signals on the output bus interface regardless of the i2c slave is connected or not. Am I right?

Thanks
Thanh