Other Parts Discussed in Thread: BQ40Z50, BQSTUDIO
Hello:
Bq40z50-r1 is connected to a external mcu with SMBus.
When only current value is read circularly, expected current value can be got from bq40z50-r1.
When voltage、temperature、soc、current are got from bq40z50 in sequence together, other parameter value are the same with expected value except current value. Current value is not right! Unexpected value can be captured exactly by oscilloscope . if read current alone, expected value can be get. if read multi-parameter , bq40z50 output wrong current value and right other parameter value.
How this happen?
TKS!