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PSWITCH on imx23

Question asked by Anh Doan on Feb 4, 2019
Latest reply on Feb 5, 2019 by igorpadykov

Hello,

 

I am a student making a custom system on a PCB with the imx23 processor. I left my PSWITCH pin as no connect. But i read that it should be pulled to VDD in order for the system to boot up, did i read that right? i read the power-up part in the manual and it lists either a 5V power supply or PSWITCH pull to above 1 v for 100 ms. So do i need to connect PSWITCH to anything? 

 

I have attach my .sch and .brd file, please comment, feeback for improvement greatly appreciated. The files are attached.

 

problem i faced so far:

 

1. processor not booting up, 2.5v rail reads 5v,

 

what is one way to check if processor boot correctly? attached a PC to the USB pins to see if there are any output? or put a serial console on the USB Debug pins?

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