Assuming you've done a successful learning cycle on your pack, is this the sequence to create a golden data flash image for the bq40z50?
1. Start Battery Management Studio.
2. Go to the Data Memory tab and click the "Read All" button.
3. Click the "Export" button and choose a *.gg.csv filename for saving the pre-learned defaults.
4 Open the saved file in a text editor such as Notepad, and change the value of Update Status from 06
to 02, which indicates that the parameters are learned but IT is disabled (as it should be in a new pack
before calibration). Also, the cycle number in the SBS Configuration can be changed to 0.
5. Write a .senc file (with the correct chemical ID) to the bq40z50, to clear the hidden data-flash constants. This is done under the Firmware tab: click "Browse" (the one next to the "Program" button text box) to load the .senc file, make sure the "Execute after programming' checkbox is cleared, and then click "Program". (NOTE: BMStudio refers to it by "srec", not "senc".)
6. Go back to the Data Memory tab, click "Import from File" and select the gg.csv file that you modified. Then click "Write_All" to update the bq40z50.
So far, so good.
7. You are now ready to export the data-flash image (*.ROM) file to be used in production.
Based on slua665, the .DFI can be programmed by a customer, but a .ROM has to be programmed by bqMTester. But this forum posting: http://e2e.ti.com/support/power_management/battery_management/f/180/t/308649.aspx says that TI is not recommending the use of .DFI anymore.
How is an export to a .ROM file done with Battery Management Studio?
How can I update data flash with a .ROM file in my system, without using TI PC software?
Thanks.
tom