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[Solved] How to read i2C interface and which adapter is required to read i2C chip containing batteries other than NLBA

Habib Ullah
(@sajid)
Reputable Member Customer

Just for Information
Dear Sir, is there any adapter/tool available to read the i2C interface (the battery PCB)? Although I have EV2400 with an i2C interface not working.

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Topic starter Posted : 24/09/2023 11:18 am
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

ev2300 and ev2400 could be used along with bqEVSW and bqStudio to work with Texas Instruments i2c gas gauges. 

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Posted : 24/09/2023 11:41 am
DjiBattWorkshop
(@djibattworkshop)
Member Moderator
Posted by: @sajid

Although I have EV2400 with an i2C interface not working

which battery are you trying to read ?.. 

 

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Posted : 24/09/2023 11:42 am
Habib Ullah
(@sajid)
Reputable Member Customer

@djibattworkshop

Toshiba PA3786U-1BRS

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Topic starter Posted : 24/09/2023 11:47 am
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

What chip it uses ?.. 

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Posted : 24/09/2023 12:09 pm
Habib Ullah
(@sajid)
Reputable Member Customer

@djibattworkshop

WhatsApp Image 2023 09 24 at 5.13.51 PM

 

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Topic starter Posted : 24/09/2023 12:14 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 This battery has AFE chip and external i2c 24C0x eeprom. Neither bqEVSW nor bqStudio support this chipset. If you have laptop you could try to read battery parameters using NirSoft Battery InfoView software. 

 

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Posted : 24/09/2023 12:25 pm
Habib Ullah
(@sajid)
Reputable Member Customer

@djibattworkshop Unfortunately not have...is there any volts present on D and C pins? or can we verify using meter?

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Topic starter Posted : 24/09/2023 12:32 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

It should be no volts on D and C but you could check it with diode meter. Content of 24c0x eeprom could be read by CH341a programmer. Sometimes if is possible to do via battery connector but not on all batteries. 

 

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Posted : 24/09/2023 2:11 pm
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