SPUSI2/NOPB National Semiconductor, SPUSI2/NOPB Datasheet - Page 11

• Manufacturer Part Number: SPUSI2/NOPB
• Description: BOARD EVAL DATA CAPTURE BOARD
• Manufacturer: National Semiconductor

Specifications of SPUSI2/NOPB

• Main Purpose: Interface, Data Capture
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: WEBENCH® Sensor Designer Boards
• Primary Attributes: USB Interface Dongle II
• Secondary Attributes: SPI Interface
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SPUSI2

It may then be used to PAUSE the recording. The button changes to RESUME
while paused and may be used to resume the recording.
the button will then simply indicate that you can stop recording. If you stop
recording in this mode all values are discarded when recording is stopped before
completion.
controlled independently.
measurements are started or stopped.
measurements are stopped, the following message is shown to the user:
4.2.3 Calibrate Button.
channel which is used to enter the calibration data end points. The computations
use either calibration points or theoretical values as selected in the configuration
panel.
data points in the desired range. Calibration consists of setting the sensor to
known values and capturing the output code. To calibrate the selected channel
click on the CALIBRATE button in the lower left part of the pane. This opens the
corresponding window shown in the figure below.
user entered physical sensor values. These are used as two data points to
compute the slope and intercept for linear extrapolation.
The window changes to the current properties after the user enters a data point.
The button normally reads RECORD but changes to PAUSE while recording.
Note that the pause behavior may not be allowed on all applications and
The Record operation requires channel measurements but may be
The center button is used to bring up the calibrate panel for the current
For best results, the sensor should be calibrated using the two segment
The calibration information consists of two sensor code values along with
The initial window shows the current calibration properties if they are valid.
Figure 4-6: Message indicating record enabled during stopped measurements.
Figure 4-7: Calibration Window with previous Data Points in Display.
Figure 4-5: Record Button when pause is not allowed.
Recording automatically starts and stops when
If recording is enabled when