Part Number:TIDM-1019
I am working on using the latest USS design center GUI and I have been successful in getting the code to compile after running thru the calibration process and creating the new header files.
Additionally, per your calibration flow diagram (provided in a different thread), I have commented out the gUssSWConfig.algorithmsConfig->numOfMeterCalibrationRanges to zero, in the USSLibGUIApp_Init() function inside of USSLibGUIApp.c file. This was also part of the compile I performed before programming the eval board.
So, the result of all of this is that the meter appears to run without the 'Adv. Calibration Table' checkbox checked (although the flow rates are not accurrate at some of the sample points because our meter has some non-linear behavior). When I check the box for 'Adv Calibration Table' the VFR drops to the offset values for the flow range that the meter is running in...
In my application, my meter runs from 0 to 33 GPM. I have three linear ranges:
The first range is: 0 to 2.5 GPM where the slope is around 0.92 and the offset is -0.04
The second range is: 2.5 to 10 GPM where the slope is around 0.96 and the offset is -0.3
The third range is 10 to 33 GPM where the slope is around 1.02 and the offset is -0.5
The GUI shows -0.5 when I run the flow thru the meter at 20 GPM.
The GUI shows -0.3 when I run the flow thru the meter at 5.0 GPM.
The GUI shows - 0.04 when I run the flow thru the meter at 1.0 GPM
In my testing it appears that following your process the meter only outputs the offset and not the VFR when the 'Adv Calibration Table' checkbox is checked.
Please provide your thoughts ASAP. I have tried to mine thru the source code and determine what is going on, but the only thing I can see is that the values are being returned that way from the USS SW lib function calls.
Any advice would be great.
Regards,
Edwin