BQ40Z60: failed to write data memory to BQ40z60 (using Bqstudio)

Hello Tom,

Check if your voltage is above flash update voltage ok threshold

HI Shirish,

May I know what is the flash threshold level? or which section of BQstudio can I set it? 

I have connected both battery (7V) and charger (12V) to EVM board, and still can't change the "cell gain" value. 

thanks.

regards,

Tom

Hi Shirish,

I still can't write to data memory after changed to 3 simulated cells (10.8V with 3 series 1kohm).

I used "write all" after changing the data memory, but it keeps roll back to original value when I read it back.

Please let me know if you need more information on my setup. thanks.

regards,

Tom

What is the CC0 CC1 setting in data memory currently?

Hi Shirish,

CC1 set to low(green), and CC0 set to high (red). It has been set to two cells previously, but I still can't write to memory using two battery cells.

F.Y.I. here the steps I write to Data memory:

1) send unseal command: 0x36720414

2)send unseal full access command: 0xFFFFFFFF

3)change data memory value (for example serial number)

4) click "write all" 

5) it managed to update in Bqstudio screen, but roll back to original value when I read the memory

Hello Tommy,

Let me know the version of bqStudio. Make sure the device is unsealed by reading and  checking operations status bits.

In step 4 you can press enter to write the value. The bottom status bar should show a message in red if the write fails.