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BQ27Z746: Shutdown mode questions

Part Number: BQ27Z746
Other Parts Discussed in Thread: BQSTUDIO

Hello all,

For some reason, some of our batteries seemed to be in shutdown mode, the FETs were off, and the OperationStatus()[SDM] was set. We think this might be a MAC shutdown.
According to the technical reference, "Charger voltage must not be present and the ENAB pin must be high for the device to enter SHUTDOWN mode". Our design was to ground the ENAB pin, so from my understanding, the battery will not be able to enter MAC shutdown. We did some testing by sending the MAC shutdown() command twice and the gauge did turn the FETs off and set the OperationStatus()[SDM] bit.

My questions are:

1. Why did the battery enter shutdown mode for no reason? We did not send the command and we permanently set the ENAB pin to low.
2. Is this actually a MAC shutdown? Because when we connect a voltage source which is greater than V_Startup and the ENAB is grounded, it did not return to NORMAL mode. 

Our current solution is to fully reset the gauge. This does work but we want to know why this is happening and skip the reset process.


Thank you in advance!

Best regards,
Eric

  • Hey Eric,

    I did testing on my end and did not see gauge enter into shutdown mode. If you are able to read registers from the gauge then the gauge is not in shutdown mode. The  OperationStatus()[SDM] bit is more of a flag that indicates that the shutdown command was sent and will enter shutdown mode when the conditions are met. This bit being set does not indicate that the gauge is in shutdown mode.

    Regards,
    Nick Richards

  • Hello Nick,

    Thanks for the prompt reply.

    I've looked up the condition of setting XDSG to 1:

    So if we send the MAC shutdown() command only once, and the delay time > FET OFF time:

    • The OperationStatus()[SMD] is being set due to the shutdown() command
    • OperationStatus()[XCHG] and OperationStatus()[XDSG] are being set because of the SDM flag and delay time > FET OFF time

    And based on our design which the ENAB pin is grounded, the battery should never be in shutdown mode through command, right?

    Is my understanding correct?

    Do you happen to know what would be the possible cause that this issue happens? We did not send any shutdown commands when building the batteries and 6 of the 10 batteries had this issue with OperationStatus()[XCHG], OperationStatus()[XDSG], and OperationStatus()[SDM] flags being set. I don't think that we accidentally sent the shutdown command so I was wondering if there are any other conditions that causing this issue?

    Thank you!

    Best regards,
    Eric

  • Hey Eric,

    That is correct. With ENAB grounded the gauge should never go into shutdown mode.
    There are many events that can casue the XCHG and XDSG bits to be set. One of the most common is if the FET_EN command is sent. I did a test on my end where XCHG, XDSG, and ENAB pin were low then the shutdown command was sent. SDM bit was set high and the XCHG and XDSG bits remained low. Only after the ENAB pin was pulled high, the XDSG and XCHG bits were set high.

    Regards,
    Nick Richards

  • Hello Nick,

    Thank you for your clarification.

    Based on our testing, even though we grounded the ENAB pin and sent the shutdown command, the SDM bit was set as expected. But the weird thing is that the XDSG and XCHG bits were also being set high. Because of these flags were also being set, I was wondering if the battery was actually in shutdown mode in the first place.

    We will test it again and see if we have new findings about why the XDSG and the XCHG bits were set. 

    Thank you!

    Best regards,
    Eric

  • Hey Eric,

    Yes, if possible when doing this test, if you can please get a BQStudio log of what's happening. Would help to see if there is anything else that is causing XSDSG and XCHG bit to be set.

    Regards,
    Nick Richards

  • Hello Nick,

    Here are the screenshots of the registers.

    After sending the shutdown command:

    After resetting:

    The XCHG and XDSG flags were still being set after the shutdown command.

    Do you see other potential problems of why the XCHG and XDSG being set?

    Thank you!


    Best regards,

    Eric

  • Hey Eric,

    Thank you for the screenshots. However, I want to review a log file so I can watch every registers change over the duration of the test. This will allow me to  have a better understanding on what's causing the XCHG and XDSG bits to set. You can get a log file by pressing the "Start Log" button on BQStudio.

    Regards,
    Nick Richards

  • Hello Nick,

    Please see the attachment for the log file. I also transformed it into an excel file.

    Wed Mar 06 15:38:21 CST 2024
    
    Device Version Info = 1746_0_01
    BQZ Device Name = bq27z746
    BQZ Firmware Version = 0_01
    
    
    Sample,DateTime,ElapsedTime,ManufAccess,@Rate(@),@TimeEmpty,Temperature,Voltage,Current,AvgCurr,AvgPow,RSOC,RemCap,FullChgCap,RunTimeEmty,AvgTimeFull,MaxLoadCurrent,MaxLoadTimeEmty,VoltHiSet,VoltHiClear,VoltLoSet,VoltLoClear,TempHiSet,TempHiClear,TempLoSet,TempLoClear,SOCDeltaSet,BTPDsgSet,BTPChgSet,IntStatus,ChgCurr,ChgVolt,QmaxCC,TermV,BattStat,CycleCnt,SoH,OpStatA,OpStatB,TempRange,ChgStat,GaugeStat,ITStat,MfgStat,BattSenseOutput,BattSenseStatus,SafetyAlert 1,SafetyAlert 2,SafetyStat 1,SafetyStat 2,Elapsed Time,PackPinV,CellVolt,CellCurr,CellPower,IntTemp,TS1Temp,TS1Temp,CellTemp,FETTemp,Cell1RawV,CellRawI,FltRemQ,FltRemE,FltFullChgQ,FltFullChgE,TrueRemQ,TrueRemE,InitialQ,InitialE,TrueFullChgQ,TrueFullChgE,T_sim,T_ambient,RaScale1,CompRes1,PackGrid,LStatus,CellGrid1,StateTime,DOD0_1,DOD0 Passed Q,DOD0 Passed E,DOD0 Time,DODEOC_1,QMax1,QMaxDOD0_1,QMaxPassedQ,QMaxTime,Tk,Ta,RawDOD_1,SOH_FC_Q,SOH_FC_E,LogRowTime(ms),LogStatus
    1,2024-03-06 15:38:22,1.002,0x0054,0,65535,24.7,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8186,0x0440,0x08,0x0004,0x40,0x0801,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3803,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.4,24.8,1000,0,0,2,0,109102,9024,0,0,4,0,2739,0,0,484,10.0,285,9024,2702,1032,997,SUCCESS
    2,2024-03-06 15:38:23,2.014,0x0077,0,65535,24.7,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8186,0x0040,0x08,0x0004,0x40,0x0801,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3803,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.4,24.7,1000,0,0,2,0,109103,9024,0,0,4,0,2739,0,0,484,10.0,285,9024,2702,1032,999,SUCCESS
    3,2024-03-06 15:38:24,3.029,0x0077,0,65535,24.7,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8186,0x0040,0x08,0x0004,0x40,0x0801,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3803,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.4,24.7,1000,0,0,2,0,109104,9024,0,0,4,0,2739,0,0,484,10.0,285,9024,2702,1032,981,SUCCESS
    4,2024-03-06 15:38:26,5.056,0x0054,0,65535,24.7,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8186,0x0040,0x08,0x0004,0x40,0x0801,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3803,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.4,24.7,1000,0,0,2,0,109106,9024,0,0,4,0,2739,0,0,484,10.0,285,9024,2702,1032,984,SUCCESS
    5,2024-03-06 15:38:27,6.055,0x0077,0,65535,24.7,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8186,0x0440,0x08,0x0004,0x40,0x0801,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3804,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.4,24.7,1000,0,0,2,0,109107,9024,0,0,4,0,2739,0,0,484,10.0,285,9024,2702,1032,998,SUCCESS
    6,2024-03-06 15:38:28,7.069,0x0077,0,65535,24.7,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x0186,0x0041,0x08,0x0004,0x40,0x0801,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3804,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.4,24.7,1000,0,5,2,5,0,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,998,SUCCESS
    7,2024-03-06 15:38:29,8.473,0x0054,0,65535,24.7,3804,-4,-4,-2,45,1192,2701,17880,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x0186,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3805,3804,0,0,24.7,24.7,-273.2,24.8,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,1,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,998,SUCCESS
    8,2024-03-06 15:38:30,9.488,0x0077,0,65535,24.8,3804,0,-4,-2,45,1192,2701,17880,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x0186,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3805,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,-7,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,2,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,1028,SUCCESS
    9,2024-03-06 15:38:31,10.533,0x0077,0,65535,24.7,3804,0,-3,-2,45,1192,2701,23840,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3805,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,3,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,1011,SUCCESS
    10,2024-03-06 15:38:33,11.950,0x0054,0,65535,24.7,3804,0,-3,-2,45,1192,2701,23840,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,458,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,4,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,985,SUCCESS
    11,2024-03-06 15:38:34,12.951,0x0077,0,65535,24.7,3804,4,-3,-1,45,1192,2701,23840,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,19,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,5,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,981,SUCCESS
    12,2024-03-06 15:38:35,13.948,0x0077,0,65535,24.7,3804,0,-2,-1,45,1192,2701,35760,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,1,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,6,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,982,SUCCESS
    13,2024-03-06 15:38:36,14.947,0x0077,0,65535,24.7,3804,0,-2,-1,45,1192,2701,35760,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,1,3804,0,0,24.8,24.8,-273.2,24.7,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,7,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,1014,SUCCESS
    14,2024-03-06 15:38:37,16.367,0x0054,0,65535,24.8,3804,0,-2,-1,45,1192,2701,35760,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,0,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,9,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,981,SUCCESS
    15,2024-03-06 15:38:38,17.365,0x0077,0,65535,24.7,3804,0,-2,-1,45,1192,2701,35760,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,0,3804,0,0,24.8,24.7,-273.2,24.7,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,10,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,983,SUCCESS
    16,2024-03-06 15:38:39,18.364,0x0077,0,65535,24.7,3804,0,-2,-1,45,1192,2701,35760,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,0,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,11,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,997,SUCCESS
    17,2024-03-06 15:38:40,19.767,0x0054,0,65535,24.8,3804,0,-2,-1,45,1192,2701,35760,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,1,3804,0,0,24.7,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,12,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,999,SUCCESS
    18,2024-03-06 15:38:41,20.782,0x0077,0,65535,24.8,3804,0,-2,-1,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,1,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,13,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,983,SUCCESS
    19,2024-03-06 15:38:42,21.780,0x0077,0,65535,24.7,3804,0,-1,-1,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,0,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,14,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,999,SUCCESS
    20,2024-03-06 15:38:43,22.795,0x0077,0,65535,24.7,3804,0,-1,-1,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,0,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,15,9024,0,0,0,0,2739,0,0,484,10.0,285,9024,2702,1032,981,SUCCESS
    21,2024-03-06 15:38:45,24.182,0x0054,0,65535,24.7,3804,0,-1,-1,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,1,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,17,9024,0,0,1,0,2739,0,0,485,10.0,285,9024,2702,1032,1014,SUCCESS
    22,2024-03-06 15:38:46,25.213,0x0077,0,65535,24.7,3804,0,-1,-1,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,2,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,18,9024,0,0,1,0,2739,0,0,485,10.0,285,9024,2702,1032,996,SUCCESS
    23,2024-03-06 15:38:47,26.224,0x0077,0,65535,24.8,3804,0,-1,-1,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,2,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,19,9024,0,0,1,0,2739,0,0,485,10.0,285,9024,2702,1032,1000,SUCCESS
    24,2024-03-06 15:38:48,27.238,0x0077,0,65535,24.7,3804,0,-1,-1,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,0,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,20,9024,0,0,1,0,2739,0,0,485,10.0,285,9024,2702,1032,983,SUCCESS
    25,2024-03-06 15:38:49,28.627,0x0054,0,65535,24.8,3804,0,-1,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,0,3804,0,0,24.8,24.7,-273.2,24.7,-273.2,3804,-7,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,21,9024,0,0,1,0,2739,0,0,485,10.0,285,9024,2702,1032,982,SUCCESS
    26,2024-03-06 15:38:50,29.626,0x0077,0,65535,24.7,3804,4,-1,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,0,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,22,9024,0,0,1,0,2739,0,0,485,10.0,285,9024,2702,1032,999,SUCCESS
    27,2024-03-06 15:38:51,30.639,0x0077,0,65535,24.8,3804,0,-1,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,0,3804,0,0,24.7,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,23,9024,0,0,1,0,2739,0,0,485,10.0,285,9024,2702,1032,984,SUCCESS
    28,2024-03-06 15:38:53,32.028,0x0054,0,65535,24.7,3804,0,-1,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,0,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,-7,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,24,9024,0,0,1,0,2739,0,0,485,10.0,285,9024,2702,1032,983,SUCCESS
    29,2024-03-06 15:38:54,33.027,0x0077,0,65535,24.7,3804,0,-1,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,1,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,25,9024,0,0,1,0,2739,0,0,485,10.0,285,9024,2702,1032,999,SUCCESS
    30,2024-03-06 15:38:55,34.043,0x0077,0,65535,24.7,3804,0,-1,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,0,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,26,9024,0,0,1,0,2739,0,0,485,10.0,285,9024,2702,1032,996,SUCCESS
    31,2024-03-06 15:38:56,35.057,0x0077,0,65535,24.7,3804,0,-1,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,0,3804,0,0,24.8,24.7,-273.2,24.7,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,27,9024,0,0,1,0,2739,0,0,485,10.0,285,9024,2702,1032,997,SUCCESS
    32,2024-03-06 15:38:57,36.459,0x0054,0,65535,24.8,3804,0,-1,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,0,100,0x6180,0x0041,0x08,0x0004,0x40,0x0900,0x0010,0x00,0x00,0x0000,0x0000,0x0000,0x0000,0,1,3804,0,0,24.7,24.7,-273.2,24.7,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.7,24.7,1000,0,5,2,5,29,9024,0,0,1,0,2739,0,0,485,10.0,285,9024,2702,1032,984,SUCCESS
    33,2024-03-06 15:38:58,37.458,0x0077,0,65535,24.7,3804,0,-1,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x00C0,,0,0x6100,0x0140,0x00,0x0000,0x00,0x0000,0x0010,0x00,0x04,0x0000,0x0000,0x0000,0x0000,0,119,3804,0,0,24.8,24.7,-273.2,19.8,-273.2,3804,4,0,0,0,0,0,0,0,0,0,0,-273.2,-273.2,0,0,0,2,0,0,0,0,0,0,0,2739,0,0,0,0.0,0,0,0,0,1015,ERROR : Please check E:\MODEL\U8xxxx\U80666R01\ELEC\Shutdonw_Rest log\U80666R01 Shutdown&Rest log.log.err
    34,2024-03-06 15:38:59,38.487,0x0077,0,0,19.8,3804,0,0,0,0,0,2450,0,0,-500,0,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,0,0,0,3000,0x0040,0,0,0x0106,0x0140,0x00,0x0000,0x40,0x0804,0x0010,0x00,0x04,0x0000,0x0000,0x0000,0x0000,0,229,3804,0,0,24.8,24.6,-273.2,24.8,-273.2,3804,-4,0,0,0,0,0,0,1509,596,0,0,24.8,24.8,1000,0,0,2,0,0,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,0,0,983,SUCCESS
    35,2024-03-06 15:39:00,39.875,0x0054,0,65535,24.8,3804,-4,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0440,0x08,0x0004,0x40,0x2804,0x0010,0x00,0x04,0x0000,0x0000,0x0000,0x0000,0,3800,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,1,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,999,SUCCESS
    36,2024-03-06 15:39:02,40.893,0x0077,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x00,0x04,0x0000,0x0000,0x0000,0x0000,0,3800,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,2,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,979,SUCCESS
    37,2024-03-06 15:39:03,41.888,0x0077,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x00,0x04,0x0000,0x0000,0x0000,0x0000,0,3800,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,3,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,981,SUCCESS
    38,2024-03-06 15:39:03,42.885,0x0077,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3800,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,4,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,984,SUCCESS
    39,2024-03-06 15:39:05,44.274,0x0054,0,65535,24.8,3804,-4,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3800,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,6,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,982,SUCCESS
    40,2024-03-06 15:39:06,45.277,0x0077,0,65535,24.8,3804,-4,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0440,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3803,3804,-4,-2,24.8,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,7,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,1056,SUCCESS
    41,2024-03-06 15:39:07,46.348,0x0077,0,65535,24.8,3804,-4,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3803,3804,-4,-2,24.8,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,8,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,999,SUCCESS
    42,2024-03-06 15:39:08,47.754,0x0054,0,65535,24.8,3804,-4,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3803,3804,-4,-2,24.8,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,9,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,983,SUCCESS
    43,2024-03-06 15:39:09,48.752,0x0077,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3803,3804,-4,-2,24.8,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,10,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,982,SUCCESS
    44,2024-03-06 15:39:10,49.751,0x0077,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0440,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3806,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,11,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,983,SUCCESS
    45,2024-03-06 15:39:11,50.750,0x0077,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3806,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,12,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,982,SUCCESS
    46,2024-03-06 15:39:13,52.135,0x0054,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3806,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,13,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,985,SUCCESS
    47,2024-03-06 15:39:14,53.136,0x0077,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3806,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,14,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,984,SUCCESS
    48,2024-03-06 15:39:15,54.134,0x0077,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3806,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,0,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,15,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,999,SUCCESS
    49,2024-03-06 15:39:16,55.148,0x0077,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0440,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3802,3804,0,0,24.8,24.8,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,16,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,982,SUCCESS
    50,2024-03-06 15:39:17,56.535,0x0054,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3802,3804,0,0,24.8,24.8,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,18,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,983,SUCCESS
    51,2024-03-06 15:39:18,57.533,0x0077,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3802,3804,0,0,24.8,24.8,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,19,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,984,SUCCESS
    52,2024-03-06 15:39:19,58.531,0x0077,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3802,3804,0,0,24.8,24.8,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,20,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,985,SUCCESS
    53,2024-03-06 15:39:21,59.922,0x0054,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0440,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3805,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,21,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,998,SUCCESS
    54,2024-03-06 15:39:22,60.937,0x0077,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3805,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,22,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,980,SUCCESS
    55,2024-03-06 15:39:23,61.940,0x0077,0,65535,24.8,3804,0,0,0,45,1192,2701,65535,65535,-500,143,4500,4400,2500,2600,60,55,-40,-35,0,150,175,0x00,2500,4200,0,3000,0x00C0,0,100,0x8106,0x0040,0x08,0x0004,0x40,0x0804,0x0010,0x60,0x00,0x0000,0x0000,0x0000,0x0000,0,3805,3804,0,0,24.8,24.7,-273.2,24.8,-273.2,3804,-4,1192,436,2701,1032,1192,436,1509,596,2701,1032,24.8,24.8,1000,0,0,2,0,23,9024,0,0,0,0,2739,0,0,0,10.0,285,9024,2702,1032,977,SUCCESS
    
    Shutdown&Reset log.xlsx

    Thank you for your help!

    Best regards,
    Eric

  • Hello Eric,

    Thank you for the log file. Based on your log file, I was able to revise my test setup and run a new test on my end. I am seeing the same behavior of both XCHG and XDSG bits being set when the shutdown command is sent twice. This is how the firmware reacts when the shutdown command is being sent. However, the gauge did not actually go into shutdown mode when I did my test.

    Regards,
    Nick Richards

  • Hello Nick,

    Thank you for reading the log file and the testing. 

    I was also doubt at the first place if it was in shutdown mode. But now we are sure that it did not go into shutdown mode.

    But did you see any possible cause for the XCHG and XDSG?
    Since it was not in shutdown mode, shouldn't the registers only set the SDM bit high?

    What I want to figure it out is: After we built the battery pack, we saw this issue: the XCHG and XDSG being set, and the SDM flag was also set high. We did not even send the shutdown command before.

    Do you have any recommendations or solutions to prevent us entering this "unknown" mode? Because 6 of the10 samples we built had this issue and we do not want our customer to follow an additional reset instruction in order to use the battery pack.

    Thank you!

    Best regards,
    Eric

  • Hello Eric,

    I have one suspicion on how the SDM bit is being set. There is also a time-based shutdown feature that is enabled when Power Config [AUTO_SHIP_EN] = 1. When the gauge stays in SLEEP mode without communication for a time greater than "Auto Ship Time" then this will cause the gauge to enter shutdown  mode. Thus causing SDM, XDSG, and XCHG bits to be set high. Can you please send me the gg file for your gauge so I can check to see if this is enabled.

    Regards,
    Nick Richards

  • Hello Nick,

    Please see the attached gg file.

    ID7455_R01.gg.csv

    Thank you!

    Best regards,
    Eric

  • Hey Eric,

    I checked your gg file and found that Power Config [AUTO_SHIP_EN] = 1. I would recommend changing this bit to 0. This is found in data memory in the settings section. Changing this bit to 0 should hopefully fix your issue.

    Regards,
    Nick Richards

  • Hello Nick,

    We set the Power Config [AUTO_SHIP_EN] to 0 and tested it again. The XCHG and XDSG flags were still being set.
    Here is the log file:

    Shutdown_AUTO_SHIP_Disable log.log


    Thank you for your help!

    Best regards,
    Eric

  • Hello Eric,

    In this new test are you still sending the shutdown command? The configuration change I made you do was to fix another cause of the SDM flag to be set high, but it will not fix the XCHG and XDSG bits being set when the shutdown command is sent.

    Regards,
    Nick Richards

  • Hello Nick,

    Yes, we tested again with sending the shutdown command. Thank you for the clarification.
    Do you see any potential solutions to fix the XCHG and XDSG bits issue?

    Thank you!

    Best regards,
    Eric

  • Hey Eric,

    Unfortunately, without changing the firmware code, those bits will be set when the shutdown command is sent. However, you stated that in the original problem, the shutdown command was not sent through the host processing but you were seeing the SDM bit set. My suspicion was that the gauge was sending the shutdown command because of the AUTO_SHIP_EN configuration.

    Regards,
    Nick Richards