Greetings,
I'm using Labview and an Aardvark I2C device to program the bq27742-g1 with a Golden Image file; and I've got just a couple questions. For reference I'm using docs: bq27742 Reference Manual, SLUA541, and SLUA379. Also I'm not programming new firmware; I'm only programming data flash. So I'm using the df.fs file. Not the bq.fs one.
After I programmed the Golden Image file onto the bq27742 using Labview and the Aardvark, I disconnected the device from Labview and Aardvark and connected it to bqStudio using the EV2400 in order to see if the chip was still working. It was. So then I used bqStudio to generate a new golden image from the device. I did this in order to compare the original golden image with the new one. The two files are very close, but they're not exactly the same. First I'm curious why they're not exactly the same. Second I would like to know more about the files so I can investigate.
For instance here are two corresponding lines from the two files. I know the W: means write and 16 is the address in ROM mode, but what does the rest mean?
Original:
W: 16 00 0A 1C 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
W: 16 64 26 00
New one:
W: 16 00 0A 1C 00 00 00 00 00 00 10 FE 01 10 36 0B 54 01 0C 80 00 3C 01 F4 05 01 C2 02 BC 05 02 8A 10 B3 10 CC 10 E5
W: 16 64 43 08
I would like to attach both files for your inspection if possible.
Another question: Can I put the device in ROM mode and play around with it, or do I have to program it with a complete and good golden image file?
Your help is greatly appreciated!
Thanks,
Anthony Durso
Southwire
Clearwater, FL