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data flash
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  • Forum Post: Re: BQ27510 Need help with writing data flash. Operation Configuration registr.

    Andrew Strukov
    Hi Ming! Then I write 0x78 in 0x41 and 0x09 in 0x40 I can read these value from address 0x40 0x41 from DataBlock and they are 0x09 0x78. But then I write the value of checksum 0xCA and read it - it doesn't change. I get old value - 0xC9. And data doesn't transfer from datablock to data flash...
    on Apr 8, 2010

  • Forum Post: Re: BQ27510 Need help with writing data flash. Operation Configuration registr.

    Andrew Strukov
    Ming, I read all data from blockdata and they are 09 79 04 2E 00 6E 14 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -checksum = C9 If I write 0x78 into 0x41, checksum is CA. Checksum = FF - (least-significant byte of sum all data from blockdata) What should I do...
    on Apr 12, 2010

  • Forum Post: Re: BQ27510 Need help with writing data flash. Operation Configuration registr.

    Andrew Strukov
    Ming, I try to write new value of ckechsum(CA) but checksum don't update. What can be the reason of this? What are required parametrs for good writing data flash? In datasheet I find only two conditions. The first condition is Voltage() must be more than Flash update voltage from data flash...
    on Apr 14, 2010

  • Forum Post: Re: BQ27510 Need help with writing data flash. Operation Configuration registr.

    Andrew Strukov
    Ming, I can't use EVSW. I can't update any information in data flash. Does bq27510 have bit that allow writing in data flash or special delays between writing? Information in Blockdatachecksum doesn't change after writing correct checksum for datablock.
    on Apr 21, 2010

  • Forum Post: Re: BQ27510 Need help with writing data flash. Operation Configuration registr.

    Andrew Strukov
    David Maxwell, I wrote in the first post here,that I can't use EVSW. I send I2C commands using AVR. That's why I can't use your special programs. It isn't working for me.
    on Apr 23, 2010

  • Forum Post: Re: BQ27510 Need help with writing data flash. Operation Configuration registr.

    Andrew Strukov
    Ming, I changed bq27510 on the other one and I could wrote into the data flash. But I don't know, What was the problem with the first bq27510. Thanks for help. P.S. Where can I find nominal of sensetive resistor in the data flash? I want to change it. Andrew.
    on May 6, 2010

  • Forum Post: BQ27510 Need help with writing data flash. Operation Configuration registr.

    Andrew Strukov
    Hello! I'm using bq27510 without external thermistor. I connected the resistance of 10K between the GND and the TS. Also connected 18K resistance between TC and BI / TOUT. I need to set a flag TEMPS register operation configuration in 0. I'm trying to rewrite the value in the data flash...
    on Apr 7, 2010

  • Forum Post: BQ27510 - write data flash

    Victorien v
    hello, I'm developping a driver in C language to control a fuel guage BQ27510. I have no problem to read the standard/sub/extend command and to write the standard command. but I can't write data on "data flash" with the extend command. the function is this one : if(!(FuelGauge_WriteExtendedCmd...
    on Aug 3, 2010

  • Forum Post: Re: failed to update DataFlash in bq20z80

    Dmitry Sorokin
    Just discovered, when you reading or writing subclass to dataflash , first byte should always be length of the following byte block. When proper length in first byte is provided all following bytes to write are acknowledged with ACK bits. Why dataflash is not updated? What am I still missing?
    on Jan 27, 2011

  • Forum Post: Possible mismatch in subclass 60 length in doc and real life, bq20z80 v102

    Dmitry Sorokin
    Hi, While exploring DataFlash in bq20z80 v102 I have found out that reading subclass 60 returns 6 bytes of data. Documentation SLUU241A – March 2006 – Revised May 2006 page 196 states - it is 4 bytes long. Anybody could clarify this? If yes, you could probably answer my...
    on Jan 26, 2011

  • Forum Post: failed to update DataFlash in bq20z80

    Dmitry Sorokin
    Hi, I need to do small DataFlash update in the existing device with bq20z80DBT controller (ver1.02). I have no EV2300, so I use BusPirate's I2C capability. The change is to switch the controller to use internal termistor only. So the target is Subclass 64. Reading subclass ([ -means Start...
    on Jan 24, 2011

  • Forum Post: Re: BQ20z80 VB function WriteDataFlashImageFromFile()

    Dimitri Marquois
    Ok Do you have an other solution to write all data flash Image without calibration data ? Maybe I can use bq Evaluation Software function to read and save dataflash into .gg file. Can you provide me that function ? Regards
    on May 23, 2011

  • Forum Post: Re: BQ20z80 VB function WriteDataFlashImageFromFile()

    Dimitri Marquois
    Thanks So DFI programming (from golden pack) will juste change the original calibration data ? Do I need to save more with "calibration Config", "calibration Temp Model" or "calibration Current" ? Regards
    on Jun 6, 2011

  • Forum Post: Re: BQ20z80 VB function WriteDataFlashImageFromFile()

    Dimitri Marquois
    At this time my code reads calibration data, program DFI and rewrites calibration data. It seems to work. I am quit sur that calibration function ( current, voltage temperature, offset calibration...) will just change calibration data so I dont need to get the gg file. am I right ? ...
    on Jun 7, 2011

  • Forum Post: Re: BQ20z95 blocked in BootROM mode

    Dimitri Marquois
    First: I check with demo board BQ20z80 which is running well (EVSW automatically recognize the BQ20z80, and I m able to communicate with it). In the TOUT pin I see pulses: then with 0D command I read in gas gauge mode 0034: and in bootRom mode 0202: Secondly : After that I check...
    on Jun 21, 2011

  • Forum Post: Re: BQ20z95 blocked in BootROM mode

    Dimitri Marquois
    I read SMB word 0D: I send SMB command 08: I write SMB command 00 word 0f00: I try with my good Bq20z80, I read SMB word 0D: So logically I have more data with my good bq20z80.
    on Jun 22, 2011

  • Forum Post: Re: Z-Track files: ROM, SENC, DFI, GG ... Lemme get this straight

    Dimitri Marquois
    Hello, I would like to know if there are a difference beteween DFI file and GG file ? GG file have text data and DFI file have binary data. Does DFI file have more data than GG file ? I would like to use GG file like a "golden image" Thank for your response
    on Jul 5, 2011

  • Forum Post: BQ20z95 blocked in BootROM mode

    Dimitri Marquois
    Hello, I am working on VB code to write into dataflash memory from DFI file. I am using exemple from slua380.pdf page 220. I think the code works great but after writing all data, my circuit cannot communicate anymore. I think BQ20z95 is blocked into BootROM mode. How can I put my circuit into Full...
    on Jun 7, 2011

  • Forum Post: Re: Z-Track files: ROM, SENC, DFI, GG ... Lemme get this straight

    Dimitri Marquois
    Hello, I think there are a mistake in one of your datasheet. In slua404 page 278, there are a code sample. '// Copy data from the full array to the row array For iIndex = 0 To 40 yRowData(iIndex + 1) = yDataFlashImage((iRow * 32) = iIndex ) Next iIndex I think the " = iIndex " is not good...
    on Jul 11, 2011

  • Forum Post: VB code function write DFI file

    Dimitri Marquois
    Hello, I think there are a mistake in one of your datasheet. In slua404 page 278, there are a code sample. '// Copy data from the full array to the row array For iIndex = 0 To 40 yRowData(iIndex + 1) = yDataFlashImage((iRow * 32) = iIndex ) Next iIndex I think the " = iIndex " is not good...
    on Jul 19, 2011

  • Forum Post: bq20z80 and bqeasy Communication error.

    tian sky
    Hello,everynoe I encountered a big problem. When I read Dataflash,the Communication error. I can refresh some data in SBS screen. But only the battery status to green, the other is gray.
    on Aug 9, 2011

  • Forum Post: BQ27500 programming

    eric charles
    Hello, we use the BQ27500 (v120) on a board, and we program it using the following steps: 1. We generated a .dfi golden pack with BQ Easy on prototype boards 2. Merge and convert the .dfi file with Dataflash.exe to a .dffs file 3. Interpret and send the .dffs file with OUR software and...
    on Sep 16, 2011

  • Forum Post: BQ27505 How to read Cycle Count via I2C

    Marc Reynolds
    on Oct 25, 2011

  • Forum Post: BQ20z65-R1Sealed

    Michael Petit
    Hello, My BQ20z65-R1is sealed (FAS and SS set) and I needhelp to unseal it. I have read the datasheet, and I didn't see the default code to unseal or have full access to device. Here is the printscreen of my registers: Kind Regards,
    on Jun 1, 2011

  • Forum Post: Bq28550 v0.03- Data Flash

    Mohit Chopra
    1. Plz help in understanding its Data Flash parameters & where I can find their description. 2. I have checked that in schematic there is option for pull-up SDA & SCL lines. But I think they have to be pulled up by external, isn't it? Why is it so? Thanks & Regards Mohit Chopra
    on Dec 28, 2011
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