Hi Experts,

We built a CPU card based on AM3359ZCZD72 referring the Beaglebone black 
schematics.

We have not added any new circuits in it. I need to say it is an exact 
replica of Beaglebone black only the form-factor is changed.

We are seeing the following problem when we tried powering up the CPU card:

·         The voltage at pins 7 & 8 of TPS65217CRSL have a 5V with a ripple 
of 0.5V pulsing at the rate of 100mS

·         The Voltage at the Pin 3, VLDO1 is appearing as a square wave at 
the rate of 100mS instead of pure DC.

·         The other power supply lines doesn’t turnup. 

The schematics of the design is attached herewith.

Request you to support us as early as possible.

Thanks in advance for the support.

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