How to read chip registers by NLBA1 tool

DjiBattWorkshop

(@djibattworkshop)

Member Moderator

The best way to read and decode chip registers is to use dedicated software and hardware from chip manufacturer. But if you dont have such tools it could be done by NLBA1 software too.

In example below it will be shown how to read registers on bq20zXXX chips like bq20z45, bq20z65, bq20z90 etc.

Go to Smbus subtab and send these commands

Register 0x00 WriteWord 0x0051

Register 0x00 ReadWord

Register 0x00 WriteWord 0x0053

Register 0x00 ReadWord

Register 0x00 WriteWord 0x0054

Register 0x00 ReadWord

Register 0x00 WriteWord 0x0055

Register 0x00 ReadWord

Register 0x00 WriteWord 0x0006

Register 0x00 ReadWord

Register 0x00 WriteWord 0x0056

Register 0x00 ReadWord

Example for the first pair of commands

Register 0x00 WriteWord 0x0051

Register 0x00 ReadWord

Step 1. Enter 00 in both Register fields

Step 2. Enter 0051 in Word field

Step 3. Press WriteWord button

Step 4. Press ReadWord button

Above commands will be logged on right side shown in violet ellipse.

Repeat same steps for all other command pairs. Step 1 could be omitted because it is the same for all commands. All the log should look like this

Decoding the registers could be done using Windows Calculator in Programmer mode and chip Technical Reference Manual.

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Topic starter Posted : 04/07/2024 1:09 pm

DjiBattWorkshop

(@djibattworkshop)

Member Moderator

Reading registers for bq30zXXX chips like bq30z55, bq30z551, bq30z554 etc.

Go to Smbus subtab and send these commands

Register 0x00 WriteWord 0x0051
Register 0x23 ReadBlock
Register 0x00 WriteWord 0x0053
Register 0x23 ReadBlock
Register 0x00 WriteWord 0x0054
Register 0x23 ReadBlock
Register 0x00 WriteWord 0x0055
Register 0x23 ReadBlock
Register 0x00 WriteWord 0x0056
Register 0x23 ReadBlock
Register 0x00 WriteWord 0x0057
Register 0x23 ReadBlock

Example for the first pair of commands

Register 0x00 WriteWord 0x0051

Register 0x23 ReadBlock

Step 1. Enter 00 in Register field

Step 2. Enter 0051 in Word field

Step 3. Press WriteWord button

Step 4. Enter 23 in Register field

Step 5. Press ReadBlock button

Above commands will be logged on right side shown in violet ellipse.

Repeat same steps for all other command pairs. Step 1 and 4 could be omitted because they are the same for other pairs. All the log should look like this

Decoding the registers could be done using Windows Calculator in Programmer mode and chip Technical Reference Manual.

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Topic starter Posted : 04/07/2024 2:07 pm

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DjiBattWorkshop

(@djibattworkshop)

Member Moderator

Reading registers for bq40XXX chips like bq40z50, bq40z370, bq40z695a etc.

Go to Smbus subtab and send these commands

Register 0x44 WriteBlock 0x5100

Register 0x44 ReadBlock

Register 0x44 WriteBlock 0x5300

Register 0x44 ReadBlock

Register 0x44 WriteBlock 0x5400

Register 0x44 ReadBlock

Register 0x44 WriteBlock 0x5500

Register 0x44 ReadBlock

Register 0x44 WriteBlock 0x5600

Register 0x44 ReadBlock

Register 0x44 WriteBlock 0x5700

Register 0x44 ReadBlock

Example for the first pair of commands

Register 0x44 WriteBlock 0x5100

Register 0x44 ReadBlock

Step 1. Enter 44 in Registers field

Step 2. Enter 5100 in Block field

Step 3. Press WriteBlock button

Step 4. Press ReadBlock button

Above commands will be logged on right side shown in violet ellipse.

Repeat same steps for all other command pairs. Step 1 could be omitted because it is the same for other pairs. All the log should look like this

Decoding the registers could be done using Windows Calculator in Programmer mode and chip Technical Reference Manual.

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Topic starter Posted : 29/09/2024 1:02 pm