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BQ27426: 无法生成固件并进行烧录

Part Number: BQ27426
Other Parts Discussed in Thread: BQ27Z746, BQ27Z561

HI 

你好,我计划使用BQ27426作为单节锂电池的电量计,我现在想要芯片在断电以后任然可以保存相关寄存器的配置,但是我现在向BQ27426烧录gm.fs文件,当芯片再次上电后,芯片并没有保存我需要的配置,而是重新回到了默认配置,我向芯片烧录的gm.fs文件并没有起到作用。

我现在想请教几个问题:

1、BQ27426是不是不可以烧录固件,若是不可以我应该如何保证芯片在断电并重新上电后可以按照我预定的功能工作?

2、可不可以推荐一种可以实现上诉功能的电量计芯片

谢谢!

  • 您好,POR and INITIALIZATION Modes Upon a POR, the fuel gauge copies ROM-based configuration defaults to RAM and begins INITIALIZATION mode where essential data is initialized. The occurrence of a POR or a Control() RESET subcommand will set the Flags() [ITPOR] status bit to indicate that RAM has returned to ROM default data.

     避免resetcommand,并且The gauge requires 2.45V minimum on VBAT to start up. It will reset if voltage on VBAT drops below 1.95V.

    单串电池推荐您看一下BQ27Z746,BQ27Z561