When the GUI is started while connected to a board that is the same configuration as the previous board that was tested, it appears to load a project file containing all of the design related information. How does the GUI decide which project file to load for a given board?
This may be non intuitive, but Fusion Digital Power Designer is not loading a project file in online mode. It is loading its own mini-project for each unique part/address pair it has worked with (for example, a UCD9240 @ address 126). This mini-project data -– design tool data such as your circuit design and compensation settings and sequencing simulation prefs -– are stored in the user’s prefs database. This is the file C:\Program Files\Texas Instruments Fusion Digital Power Designer\data\prefs.xml if you are curious.
Say you do this:
YOUR ORIGINAL PROJECT FILE WAS NOT UPDATED IN THIS CASE. The GUI saved your design data to the global prefs file, and tied it to the device you were working with (UCD9240 @ 126 in this example).
If you later start the GUI again, it loads the device config from “live” device and uses the cached design for the part/address it saved above. This is not in a project file, just user prefs.
So you need to save out your changes in online mode to your project file to ensure you can move these to other PCs, work with them offline, etc. You don't necissarily need to do this every time you quit the GUI, but if you have made changes to the design tool and are happy with your changes, I'd recommend saving these changes to a project file for future use in offline mode, archival purposes, etc.
I have an issue with Fusion. I changed two channels on line. I made sure they worked in hardware. Then I tried to save the project. I then turn off the power supply and power it back up. Fusion connects but instead of the change d channels I am getting the old configuration with the channels swapped. Also it keeps changing my Vin variable for scale bacjk to 0.250 V every time.
I had this problem. You need to make sure you save your changes to the flash in the controller. Make sure "Write to Hardware" has been done. Then click "Store RAM to Flash" to save it in the device.
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