微波EDA网,见证研发工程师的成长!
首页 > 研发问答 > 硬件电路设计 > TI电源管理交流 > BQ3060进入PF状态,请问怎么还原

BQ3060进入PF状态,请问怎么还原

时间:10-02 整理:3721RD 点击:

如附件中截图所示,bq3060的软件中有LTPF和SOCC告警,芯片资料上说可以用软件清除告警,但是我往MAC里写命令读取的值都是错误的,请指教。

TRM的第57页有相关的描述

A.1.2.10 Permanent Fail Clear(PFKey)
This 2 step command needs to be written to ManufacturerAccess in following order: 1st word of the PFKey
first followed by the 2nd word of the PFKey. If the command fails 4 seconds must pass before the
command can be reissued.
It instructs the bq3060 to clear the PFStatus, clear the [PF] flag, clear the Fuse Flag, reset the FUSE pin,
and unlock the data flash for writes.
This command is only available when the bq3060 is in Unsealed or Full Access mode.
Related Variables:
• DF:PF Status:Device Status Data(96):PF Flags 1(0)
• DF:PF Status:Device Status Data(96):Fuse Flag(2)
• SBS:SafetyStatus(0x51)[PF]
• SBS:PFStatus(0x53)
• SBS:OperationStatus(0x54)[SS],[FAS]
• SBS:PFKey(0x62)
NOTE: Higher word must be immediately followed by lower word. If clear command fails, command
can only be repeated 4 seconds after previous attempt. If communication other than the
lower word occurs after the first word is sent, the Permanent Fail Clear command fails.

或者可以考虑重新烧录默认的senc文件

Copyright © 2017-2020 微波EDA网 版权所有

网站地图

Top