101-1268 Rabbit Semiconductor, 101-1268 Datasheet - Page 47

• Manufacturer Part Number: 101-1268
• Description: KIT FOR BL4S100 STARTER PACKAGE
• Manufacturer: Rabbit Semiconductor
• Type: Single Board Computers (SBC)r

Specifications of 101-1268

• Product: Modules
• Processor Type: BL4S100
• Sram: 512 KB
• Timers: 8 bit, 10 bit
• Number Of I/os: 20
• Backup Battery: 3 V Lithium Coin Type
• Operating Voltage: 9 V to 36 V
• Power Consumption: 2 W
• Board Size: 96 mm x 146 mm x 16 mm
• Description/function: Computer Module
• For Use With/related Products: BL4S100
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 316-1157

4.2.3 A/D Converter Inputs
The following sample programs are found in the
You will need a separate power supply and a multimeter to use with these sample programs.
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BL4S100 User’s Manual
ADC_CAL_DIFF.C
channel using two measured voltages to generate two coefficients, gain and offset,
which are rewritten into the user block. The voltage that is being monitored is displayed
continuously.
Once you compile and run this sample program, connect the power supply across a
differential channel pair, then follow the instructions in the Dynamic C
ADC_CAL_MA.C
using two measured currents to generate two coefficients, gain and offset, which are
rewritten into the reserved user block. The current that is being monitored is displayed
continuously.
Before you compile and run this sample program, jumper pins 1–2 and 5–6 on headers
J10 and J11. Then connect a current meter in series with the power supply connected to
one of pins AIN0–AIN3 and AGND, then compile and run the sample program, and
follow the instructions in the Dynamic C
ADC_CAL_SE_UNIPOLAR.C
A/D converter channel using two measured voltages to generate two coefficients, gain
and offset, which are rewritten into the reserved user block. The voltage that is being
monitored is displayed continuously.
Before you compile and run this sample program, connect the power supply (which
should be OFF) between the pin (AIN0–AIN7) of the channel you are calibrating and
AGND, then compile and run the sample program, and follow the instructions in the
Dynamic C
ADC_AVERAGING_SE_UNIPOLAR.C
age voltage of each of the single-ended analog input channels using a sliding window.
The voltage is calculated from coefficients read from the display—the two calibration
coefficients, gain and offset, in the Dynamic C
mode of operation.
Before you compile and run this sample program, connect the power supply (which
should be OFF) between the pin (AIN0–AIN7) of an analog input channel and AGND,
then compile and run the sample program, and follow the instructions in the Dynamic C
STDIO
NOTE: The calibration sample programs will overwrite the calibration constants set at
NOTE: For best results use a multimeter with a resolution of at least 4½ digits.
the factory. Before you run these sample programs, run USERBLOCK_READ_
WRITE.C in the SAMPLES\UserBlock folder to save the factory calibration con-
stants in case you inadvertently write over them while running other sample programs.
window.
STDIO
—Demonstrates how to recalibrate a milli-amp A/D converter channel
—Demonstrates how to recalibrate a differential A/D converter
window.
—Demonstrates how to recalibrate a single-ended unipolar
—Demonstrates how to read and display the aver-
STDIO
SAMPLES\BL4S1xx\ADC
STDIO
window.
window for each channel, and
STDIO
subdirectory.
window.
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