I2D Devices Not detecting...

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I2D Devices Not detecting...

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priyangeorge
Contributor I

Hi everyone,

I am using I.MX257 processor. I have connected some devices to i2c bus 2. When i probe the i2c 2 line from linux terminal the devices are not showing up. But when connecting a CRO probe accros SDA line & ground and probing the I2C lines from linux terminal the device are showing up. I dont know what is the reason behind this. Can anyone help me with this.

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igorpadykov
NXP Employee
NXP Employee

Hi priyan

this may be bad contact or absence of pull-up resistor, please check it.

Best regards

igor

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