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 How I can disable BitsyXb power detection?		  Forum Locked
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msi

10 Posts
Posted - 10 Aug 2010 :  15:52:00  Show Profile
In my application, I applied external 5V on the all convectors: J3 pins8&10, J9 pins15&26 and J11 pins46&48;
The external power input (DCIN_POS) is not connected. The BitsyXb is not working. I used the BitsyX in the same application and it work. Can I do any modification to have the BitsyXb working too?

akidder

1519 Posts
Posted - 10 Aug 2010 :  16:35:52  Show Profile  Email Poster
The BitsyX and BitsyXb have the same power monitoring and power supply designs, so I'm not sure why one works and the other does not. While it's valid to power the BitsyXb 5V plane through the board-to-board connectors, we usually do this with BitsyXbs that have been configured specifically for 5V operation (this primarily involves removing the onboard 5V power supply and adjusting the trip point on the power supply reset circuit).

I'll drop you a line directly and maybe we can probe the BitsyXb to get a better understanding of why the board isn't coming up.
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