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您看一下数据手册4 Device Comparison Table, 您看一下您的芯片对应的版本带不带CRC
The whole I2C frame is then transmitted to the BQ. The BQ sends an ACK after every byte it receives. The frame format is
START | SLAVE_ADDR(7)+W(1) | REGISTER_ADDR(8) | DATA(8) | CRC(8) | STOP
