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bq20z95 commnication problem under 90Khz - SMB_CLK which compliance to smbus V1.1 between 10K - 100Khz
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Q: bq20z95 commnication problem under 90Khz - SMB_CLK which compliance to smbus V1.1 between 10K - 100Khz by 1339887
Why bq20z95(our PCM/bq20z95 EVM Board can not commnicate or failure rate higher to 97% under 90Khz ( SMB_CLK ) with US15W ( Intel ) ?? but bq2060A communication is Okay under 90Khz ,
and Ev2300 is Okay under low Speed 5x Khz !
*** How to Solve the commnication issue ( Assume US15W can not speed down to 50Khz ) :
1. Bq20z95 parameter setting :
Which parameter Setting relative to speed CONTROL in bq20z95 ??
2. BUG FROM BQ20Z95 - it can not speed to 90khz ( not compliance to MAX 100KHZ IN SMbus SPEC )
** Internal MCU can not speed up 90khz to capture Smbus data !
Q: Re: bq20z95 commnication problem under 90Khz - SMB_CLK which compliance to smbus V1.1 between 10K - 100Khz by 1489
It's not much of a Khz issue, but the wait time between package. Try have a longer wait time between package. We usual obtain pretty good robust communication using 200usec wait.
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