BQ3050EVM-001: LED Status for Charge / Discharge

Yes , Shirish

We already tried that LED Display command mentioned into BQ3050 Technical Reference Manual (Page 49).
LED ON and LED OFF Command works fine...

But executing Display ON command writing in ManufacturerAccess(0x00) does not work...

Pressing SW1 on DISP does not show LED Status for Charge / Discharge @ Fuelguage 4% . we tried following cmds...First two works fine but not third one.

-Thanks

Hello Bhupendra,

That is good. Check that there are no safety conditions triggered. Post a screenshot of bqEVSW SBS data and flags.

What is the value the bits in Display Configuration?

SBS Screens.zip

Here is the attached Screen data FYR.

Let me know in case you need more.

- Thanks

Hello Bhupendra,

Seems like the device is in calibration mode. CAL_EN is set. bq3050 may not be operating in normal mode, therefore CUV is also showing as set even though voltage is above threshold. Exit cal mode by sending 0xF080 to ManufacturerAccess() and see if that changes the SBS data.

Hello Shirish,

Executed 0xF080 command to ManufacturerAccess(). but SBS data remains all same.

CAL Bit is 0 , which indicated 

and 

CAL_EN bit also remain as it is. Here , RED mark means it is Set , correct ?

-Bhupendra

Thanks , Sending 0xF080  solves the problem.

But Could not understand, why SBS bit are still as it is ?  

Hello Shirish,

I tried that , 2 times ....but result is as it is.

No any Change.

Hello Bhupendra,

Maybe there are other tabs open. Restart bqEVSW and turn off SBS scanning, then follow the steps again.

If that does not work, then you may need to reprogram the firmware and start afresh.

Updating Firmware using Srec Programming in Pro Tab Shows " Device not in ROM!" Error. 

Hello Bhupendra,

You will need to WriteWord Cmd=0 Word=0x0f00 to send it to ROM mode.

After programming send SMB command 0x08 to exit ROM mode.

Updated .Senc file with : bq3050_v0_02_bld_3.senc 

and followed below :

Turn off scanning.

Then Write 0x00 to ManufacturerAccess() and then write 0xF080  to ManufacturerAccess()

Then Write 0x00 to ManufacturerAccess() again and then read SBS data to check the flag

Closed BqEVSW software , then open , read SBS data

But CAL_EN is still ON.

That is strange. Try closing the SBS screen before programming.