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BQ4050: can not charge and discharge

Ho Viet Dao
Intellectual 285 points
Part Number: BQ4050
Other Parts Discussed in Thread: BQSTUDIO, EV2400,

I'm using STM32 and I2C to write config to BQ4050:

ret = BQ4050WriteFlash(BQ4050_ADDRESS, bq4050_dataFlash.gasGauging.design.designCapacitymAh.addr, 6000);
if(ret == false)
return ret;
ret = BQ4050WriteFlash(BQ4050_ADDRESS, bq4050_dataFlash.gasGauging.design.designVoltage.addr, 14400);
if(ret == false)
return ret;
ret = BQ4050WriteFlash(BQ4050_ADDRESS, bq4050_dataFlash.protections.OCD1.threshold.addr, 6000);
if(ret == false)
return ret;
ret = BQ4050WriteFlash(BQ4050_ADDRESS, bq4050_dataFlash.protections.OCD1.delay.addr, 6);
if(ret == false)
return ret;
ret = BQ4050WriteFlash(BQ4050_ADDRESS, bq4050_dataFlash.gasGauging.state.learnedFCC.addr, 4400);
if(ret == false)
return ret;
ret = BQ4050WriteFlash(BQ4050_ADDRESS, bq4050_dataFlash.settings.permanent.enablePFA.0);
if(ret == false)
return ret;
ret = BQ4050SetNumberCell(4u);

After finish init, I'm using BQStudio to read register:

 no erro in register but the XCHG & XDSG = disble

please support me, I don't know why.

  • 0
    TI__Mastermind 19195 points

    Hi Ho,

    Upload your .gg file here.

    Thanks,

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    EVK.gg.csv

    please refer this file. I'm using 4S lion pin, each pin have 6000mAH

  • 0 in reply to Ho Viet Dao
    TI__Mastermind 19195 points

    Hi,

    Refer to 4.12 of the TRM. Have you configured the cell count correctly?

    Your .gg shows chg and dsg are allowed (both low).

    Best,

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    yes, it's already configured to 4 cells ( CC0-CC1 = 1,1 )

    all PF, status, PF alert bit is 0, CHGFET=1, but XCHG, XDSH = 1

    Packet vol= 16800mV. Please check again gg file that I export when connect via I2C. Sorry, last file is original, when I no connect to my ECUEVK_After_connect_I2C.gg.csv

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    yes, it's already configured to 4 cells ( CC0-CC1 = 1,1 )

    all PF, status, PF alert bit is 0, CHGFET=1, but XCHG, XDSH = 1

    Packet vol= 16800mV. Please check again gg file that I export when connect via I2C. Sorry, last file is original, when I no connect to my ECU1104.EVK_After_connect_I2C.gg.csv

  • 0 in reply to Ho Viet Dao
    TI__Mastermind 19195 points

    Hi,

    Have you programmed the correct chemID?

    Best,

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    I don't programmed this.

    this is my step: 

    1. I connect my battery with BQ4050-EVM 561 board, it's charge and discharge normally with BQ studio (setup CC0-CC1 = 4cells, FET_EN= 1 ) => XDSG, XCHG = 0

    2. I using STM32 ECU to write I2C same SMBus ( the code is in above )

    ret = BQ4050WriteFlash(BQ4050_ADDRESS, bq4050_dataFlash.gasGauging.design.designCapacitymAh.addr (0x444D), 6000);

    ret = BQ4050WriteFlash(BQ4050_ADDRESS, bq4050_dataFlash.gasGauging.design.designVoltage.addr (0x4451), 14400);

    ret = BQ4050WriteFlash(BQ4050_ADDRESS, bq4050_dataFlash.protections.OCD1.threshold.addr (0x44A0), -5000);

    ret = BQ4050WriteFlash(BQ4050_ADDRESS, bq4050_dataFlash.protections.OCD1.delay.addr (0x44A2), 6);

    ret = BQ4050WriteFlash(BQ4050_ADDRESS, bq4050_dataFlash.gasGauging.state.learnedFCC.addr (0x4100), 4400);

    ret = BQ4050WriteFlash(BQ4050_ADDRESS, bq4050_dataFlash.settings.permanent.enablePFA (0x44F5), 0);

    ret = BQ4050SetNumberCell(4u); // like  ret = BQ4050WriteFlash(BQ4050_ADDRESS, bq4050_dataFlash.settings.configuration.dAConfiguration.addr (0x457B), 0x03);

    3. remove my ECU and connect I2C line to BQ studio ( via EV2400 ), scan resgiter: XDSG, XCGH = 1 => can't charge/discharge by send command FET_EN = 1 ( CHGFET=1 is already )

  • 0 in reply to Ho Viet Dao
    TI__Mastermind 19195 points

    Hi,

    Sorry about that chemID is for our impedance track gauges. Try this GPCCEDV

    Best,

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    Hi Nick

    you're meaning I must use this tool for update. if I only have ECU and I2C part, how can I do that?

    can you provide the default data of BQ4050-EVM 561 board to reset my EVM board? or .SREC file also.

    I want to confirm my Initialize source code have problem first

  • 0 in reply to Ho Viet Dao
    TI__Mastermind 19195 points

    Refer to below image for loading defaults.

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    hi Nick

    I already did that, after Import default I write all, and click reset device button, the status is same ( XCHG&XDSG still 1 )

  • 0 in reply to Ho Viet Dao
    Intellectual 285 points

    hi Nick

    when I disable FET_EN by send 0x22 command, after that, Set Charge/discharge by CHG_FET_TOGGLE/DIS_FET_TOGGLE it's can charge and discharge

    what is problem with this? in TRM, it said if FET_EN = 1, device automatic control

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    Fullscreen charrger.log Download 
    Wed Nov 11 14:05:44 ICT 2020

Device Version Info = ffffffa5_ffffffff_ffffffa5
BQZ Device Name = bq4050
BQZ Firmware Version = 0_01

Design Capacity = 6000
Design Voltage = 14400
Specification Info = 0x0031
Manufacturer Date = 1980-1-1
Serial Number = 0x0001
Manufacturer Name = Texas Instruments
Device Name = bq4050
Device Chemistry = LION

Sample,DateTime,ElapsedTime,ManufAccess,RemCapAlarm,RemTimeAlarm,BattMode,@Rate(@),@TimeFull,@TimeEmpty,@RateOK,Temperature,Voltage,Current,AvgCurr,MaxErr,RSOC,ASOC,SOH,RemCap,FullChgCap,RunTimeEmty,RunTimeEmty,AvgTimeFull,ChgCurr,ChgVolt,BattStat,CycleCnt,OpStatA,OpStatB,TempRange,ChgStat,GaugeStat,MfgStat,SafetyAlertAB,SafetyStatAB,SafetyAlertCD,SafetyStatCD,PFAlertAB,PFStatAB,PFAlertCD,PFStatCD,CellVolt1,CellVolt2,CellVolt3,CellVolt4,vBAT,vPACK,CellCurr1,CellCurr2,CellCurr3,CellCurr4,CellPower1,CellPower2,CellPower3,CellPower4,Power,AvgPow,IntTemp,TS1Temp,TS2Temp,TS3Temp,TS4Temp,CellTemp,FETTemp,CEDV_RC,DSGCap,CEDVThr,CEDVFltV,ChgDeficit,LogRowTime(ms),LogStatus
1,2020-11-11 14:05:48,4.001,0x6181,300,10,0x6001,0,65535,65535,1,24.3,16149,0,0,100,90,90,100,5366,6000,65535,65535,65535,0,0,0x00C0,0,0x6181,0x0000,0x08,0x0008,0x40,0x0250,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4071,4038,4018,4023,16156,16750,0,0,0,0,0,0,0,0,0,0,25.5,24.3,24.2,24.2,24.2,24.3,25.5,5366,0,0,0,0,775,SUCCESS
2,2020-11-11 14:05:52,8.002,0x6181,300,10,0x6001,0,65535,65535,1,24.3,16150,0,0,100,90,90,100,5366,6000,65535,65535,65535,0,0,0x00C0,0,0x6181,0x0000,0x08,0x0008,0x40,0x0240,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4071,4038,4018,4023,16156,16751,0,0,0,0,0,0,0,0,0,0,25.5,24.3,24.2,24.2,24.2,24.3,25.5,5366,0,0,0,0,757,SUCCESS
3,2020-11-11 14:05:56,12.002,0x6181,300,10,0x6001,0,65535,65535,1,24.3,16150,0,0,100,90,90,100,5366,6000,65535,65535,65535,0,0,0x00C0,0,0x6181,0x0000,0x08,0x0008,0x40,0x0240,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4071,4038,4018,4023,16157,16750,0,0,0,0,0,0,0,0,0,0,25.5,24.3,24.2,24.2,24.2,24.3,25.5,5366,0,0,0,0,757,SUCCESS
4,2020-11-11 14:06:00,16.003,0x2187,300,10,0x6001,0,65535,65535,1,24.3,16660,618,110,100,90,90,100,5366,6000,65535,65535,346,3520,16400,0x0080,0,0x2187,0x0000,0x08,0x8008,0x10,0x0242,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4194,4163,4142,4163,16662,16708,612,613,615,600,257,255,255,250,1018,235,25.4,24.3,24.2,24.2,24.2,24.3,25.4,5366,0,0,0,0,789,SUCCESS
5,2020-11-11 14:06:04,20.003,0x2187,300,10,0x6001,0,65535,65535,1,24.3,16662,603,229,100,90,90,100,5366,6000,65535,65535,166,3520,16400,0x0080,0,0x2187,0x0000,0x08,0x8008,0x10,0x0242,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4195,4163,4142,4163,16664,16710,603,606,607,592,253,252,251,246,1000,421,25.4,24.3,24.2,24.2,24.2,24.3,25.4,5367,0,0,0,0,791,SUCCESS
6,2020-11-11 14:06:08,24.004,0x2187,300,10,0x6001,0,65535,65535,1,24.3,16663,594,318,100,90,90,100,5367,6000,65535,65535,123,3520,16400,0x0080,0,0x2187,0x0000,0x08,0x8008,0x10,0x0242,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4195,4163,4142,4163,16666,16709,593,595,597,583,249,248,247,243,988,559,25.4,24.3,24.2,24.2,24.2,24.3,25.4,5367,0,0,0,0,754,SUCCESS
7,2020-11-11 14:06:12,28.004,0x6187,300,10,0x6001,0,65535,65535,1,24.3,16312,380,384,100,90,90,100,5368,6000,65535,65535,104,3520,16400,0x0080,0,0x6181,0x0000,0x08,0x8008,0x10,0x0240,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4079,4047,4026,4032,16210,16750,10,14,10,1,4,6,4,0,138,605,25.4,24.3,24.2,24.2,24.2,24.3,25.4,5368,0,0,0,0,788,SUCCESS
8,2020-11-11 14:06:16,32.005,0x6181,300,10,0x6001,0,65535,65535,1,24.3,16170,3,296,100,90,90,100,5368,6000,65535,65535,130,0,0,0x0080,0,0x6181,0x0000,0x08,0x8008,0x10,0x0240,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4076,4043,4023,4029,16177,16750,0,0,0,0,0,0,0,0,0,459,25.4,24.3,24.2,24.2,24.2,24.3,25.4,5368,0,0,0,0,754,SUCCESS
9,2020-11-11 14:06:20,36.006,0x4181,300,10,0x6001,0,65535,65535,1,24.3,16167,0,225,100,90,90,100,5368,6000,65535,65535,169,0,0,0x0080,0,0x4183,0x0000,0x08,0x8008,0x10,0x0244,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4075,4043,4022,4028,16174,16751,0,0,0,0,0,0,0,0,0,349,25.3,24.3,24.2,24.2,24.2,24.3,25.3,5368,0,0,0,0,752,SUCCESS
10,2020-11-11 14:06:24,40.006,0x4183,300,10,0x6001,0,65535,65535,1,24.3,16165,0,171,100,90,90,100,5368,6000,65535,65535,222,0,0,0x0080,0,0x4183,0x0000,0x08,0x8008,0x10,0x0244,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4075,4042,4021,4027,16171,16751,0,0,0,0,0,0,0,0,0,266,25.4,24.3,24.2,24.2,24.2,24.3,25.4,5368,0,0,0,0,755,SUCCESS
11,2020-11-11 14:06:28,44.007,0x4183,300,10,0x6001,0,65535,65535,1,24.3,16164,3,130,100,90,90,100,5368,6000,65535,65535,292,0,0,0x0080,0,0x4183,0x0000,0x08,0x8008,0x10,0x0244,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4074,4042,4021,4027,16171,16751,0,0,0,0,0,0,0,0,0,202,25.3,24.3,24.2,24.2,24.2,24.3,25.3,5368,0,0,0,0,754,SUCCESS
12,2020-11-11 14:06:32,48.008,0x6181,300,10,0x6001,0,65535,65535,1,24.3,16162,0,99,100,90,90,100,5368,6000,65535,65535,383,0,0,0x0080,0,0x6181,0x0000,0x08,0x8008,0x10,0x0240,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4074,4042,4021,4026,16168,16750,0,0,0,0,0,0,0,0,0,154,25.3,24.3,24.2,24.2,24.2,24.3,25.3,5368,0,0,0,0,765,SUCCESS
13,2020-11-11 14:06:36,52.009,0x6181,300,10,0x6001,0,65535,65535,1,24.3,16162,0,75,100,90,90,100,5368,6000,65535,65535,506,0,0,0x0080,0,0x6181,0x0000,0x08,0x8008,0x10,0x0240,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4074,4041,4020,4026,16168,16752,0,0,0,0,0,0,0,0,0,117,25.3,24.3,24.2,24.2,24.2,24.3,25.3,5368,0,0,0,0,751,SUCCESS
14,2020-11-11 14:06:40,56.010,0x6181,300,10,0x6001,0,65535,65535,1,24.3,16161,0,57,100,90,90,100,5368,6000,65535,65535,665,0,0,0x0080,0,0x6181,0x0000,0x08,0x8008,0x10,0x0240,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4074,4041,4020,4026,16168,16750,5,8,1,-13,2,3,0,-5,5,89,25.3,24.3,24.2,24.2,24.2,24.3,25.3,5368,0,0,0,0,748,SUCCESS
15,2020-11-11 14:06:44,60.010,0x6181,300,10,0x6001,0,65535,65535,1,24.3,16160,3,44,100,90,90,100,5368,6000,65535,65535,862,0,0,0x0080,0,0x6181,0x0000,0x08,0x8008,0x10,0x0250,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4074,4041,4020,4026,16166,16751,0,0,0,0,0,0,0,0,0,68,25.3,24.3,24.2,24.2,24.2,24.3,25.3,5368,0,0,0,0,751,SUCCESS
16,2020-11-11 14:06:48,64.011,0x6181,300,10,0x6001,0,65535,65535,1,24.3,16159,0,33,100,90,90,100,5368,6000,65535,65535,1149,0,0,0x0080,0,0x6181,0x0000,0x08,0x8008,0x10,0x0250,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4073,4041,4020,4026,16165,16752,0,0,0,0,0,0,0,0,0,52,25.3,24.3,24.2,24.2,24.2,24.3,25.2,5368,0,0,0,0,750,SUCCESS
17,2020-11-11 14:06:52,68.011,0x6181,300,10,0x6001,0,65535,65535,1,24.3,16159,0,25,100,90,90,100,5368,6000,65535,65535,1517,0,0,0x0080,0,0x6181,0x0000,0x08,0x8008,0x10,0x0250,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4073,4041,4020,4026,16165,16751,0,0,0,0,0,0,0,0,0,39,25.3,24.3,24.2,24.2,24.2,24.3,25.3,5368,0,0,0,0,746,SUCCESS
18,2020-11-11 14:06:56,72.011,0x6181,300,10,0x6001,0,65535,65535,1,24.3,16158,3,19,100,90,90,100,5368,6000,65535,65535,1996,0,0,0x0080,0,0x6181,0x0000,0x08,0x8008,0x10,0x0250,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4073,4040,4020,4026,16165,16750,0,0,0,0,0,0,0,0,0,30,25.2,24.3,24.2,24.2,24.2,24.3,25.2,5368,0,0,0,0,761,SUCCESS

    please refer the logging

  • 0 in reply to Ho Viet Dao
    TI__Mastermind 19195 points

    Hi Ho,

    So to confirm you are able to charge and discharge now?

    Best regards,

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    Hi Nick

    Its only charge&discharge when you disable FET_EN bit and write CHG_FET_TOGGLE. But if enable FET_EN bit, its not charge

  • 0 in reply to Ho Viet Dao
    TI__Mastermind 19195 points

    The PRES pin has to be asserted (Pulled to ground) to turn on the FETs once FET_EN is set, unless the pack is configured as a non-removable pack.
    To configure the pack as a non-removable pack you will have to set the [NR] bit (Bit2 in "DA Configuration" under "Settings" in the Data Memory.

    Best regards,

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    Hi Nick

    this PIN already connected to GND. The status of ManufatureStatus PRES bit is 1 now

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    hi Nick, 1 more points I see:

     I see in sluuqa3.pdf page 128 have GAUGE_EN bit

    but in BQ studio, in Setting:

    what's wrong now?

  • 0 in reply to Ho Viet Dao
    TI__Mastermind 19195 points

    Hi,

    Follow the instruction here to upload images. 

    Best regards,

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    in sluuqa3 page 128

    but in BQ studio, in Setting Data Flash

    And status of PRES in my side is already LOW

    please support me to find the reason

    1 more point: in BQ4050-EVM 561 manual, in Firmware update, I see the bq4050_xx_22.srec. if possible, could you please give this SREC file to write default value to data flash

    thanks

  • 0 in reply to Ho Viet Dao
    TI__Mastermind 19195 points

    Hi,

    not sure what your asking, please clarify.

    Best regards,

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    hi Nick, my question is :

    1. if I disable FET_EN, send command CHG_FET_TOGGLE, BQ4050-EVM 561 can charge, send command DSG_FET_TOGGLE, BQ4050-EVM 561 can discharge. But when I enable FET_EN, it's not charge/discharge. The PRES pin is already pulled to GND ( PRES status is 1). No error in PF bit, same in Status Alert, PF Alert. See the picture below ( I don't know why XCHG&XDSG bit alway 1 )

    2. In TRM (sluuaq3.pdf file) page 128, the manufacture status init data flash have GAUGE_EN bit, but why in BQ studio software, don't have this bit?

    please see in picture below

    3. in BQ4050EVM-561 user manual (sluubf9) , in 3.5 Firmware Screen, could you please give me bq4050_v0_01_build_22.srec. I want to reset Dataflash to default by write this file

     

    thank you very much

  • 0 in reply to Ho Viet Dao
    TI__Mastermind 19195 points

    Hi Ho,

    Upload the current .gg and I will take a look, also can you upload image showing all bit registers.

    No need for a new srec and you can reset defaults within bqstudio.

    Best regards,

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    Hi Nick, please refer gg file here

    4606.EVK_After_connect_I2C.gg.csv

    and the picture of register is below

  • 0 in reply to Ho Viet Dao
    TI__Mastermind 19195 points

    Hi,

    can you upload an image showing all bit register, the bottom are missing.

    Thanks,

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    Hi Nick

    please refer the picture below

  • 0 in reply to Ho Viet Dao
    TI__Mastermind 19195 points

    Hi Ho,

    I loaded your config and everything working ok. Make sure to pull sys-press to pack -  if NR bit is 0.

    Can also try sending the reset command.

    Best regards,

  • 0 in reply to Nick Brylski
    Intellectual 285 points

    Hi Nick

    I try to export srec file from another evk, after that import srec file to my board, it's can charge

    maybe the I2C command wrong