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BQ76952: 2 device series connection, initial fail from low temperature environment

user5883945
Expert 1896 points
Part Number: BQ76952


Hi expert,

  Customer need 24 cell, so they connect the two B176952 in series. but they found the board always initial fail in low temperature environment and the system can be succeed after multiple restarts.

they debug the code found that it always crash where the GPIO is configured for temperature detection, and It happened on the second AFE that connect cell17 to cell24

below is GPIO configured for temperature detection code.