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AFE4900: Issues with using AFE4900EVM with 4 LEDs

Part Number: AFE4900

Hi,

I am trying to collect data using 4 LEDs and one PD connected to the EVM board. I have set up all the registers in the configuration software to enable the 4th LED, but it is just showing noise in the 4th phase (named LED1 ambient). It is not even responding to large changes in ambient light (like tapping on the PD). I can provide the register settings for your reference. I would really appreciate your support on this. Thanks.