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还有，我在Configuring the bq34100 Data Flash文件中看到Update Status寄存器的介绍
Three bits in this register are important:
Bit 2 (0x04) indicates whether the Impedance Track™ algorithm is enabled.
Bit 1 (0x02) indicates that the bq34z100 has learned optimized values for Qmax and the Ra tables during a learning cycle.
Bit 0 (0x01) indicates that the bq34z100 has learned an initial value for Qmax after the charging portion of a learning cycle.
At the beginning of a learning cycle when creating a golden DFI file in bqEASY™, Update Status will start at 0x00. When IT is enabled with the IT_ENABLE subcommand being sent to Control(), Update Status will automatically be changed to 0x04. After the charge and relaxation portion of the learning cycle are complete, Update Status should have become 0x05. Finally, after the discharge and relaxation portion of the learning cycle, Update Status will become 0x06 if the learning cycle was successfully completed. A golden DFI file can then be generated in the final step of bqEASY if Update Status was successfully set to 0x06 by the gauge.
When the golden DFI file is created by bqEASY, bit 2 will be cleared, leaving Update Status = 0x02. Note that none of these bits should be manually changed. IT must be enabled only by sending the IT_ENABLE subcommand to the Control() register.
这句是说的生成DFI后Update Status 的 BIT2 自动清除 Update Status = 0x02，那就是说不需要手动修改吧。。。我是不是理解错了。
