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BQ76PL455A: some questioin of BQ76PL455

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Part Number:BQ76PL455A

Hello,dear

I am using BQ76PL455EVM board.  I have completed the single board test. Now, I want test daiy-chain mode. But i can't connect the second EVM board to system.

I connect the second board by this way : connect the second board ' s J4 to frist board's J5,fault + connectd to fault- ,comml+ connected to comml-, the wake_up PIN contect to GND,RX and TX PIN connect to VIO. The GUI can only detect the frist board, how should i do to connect the second EVM? 

THANKS,


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