20-101-1028 Rabbit Semiconductor, 20-101-1028 Datasheet - Page 105
20-101-1028
Manufacturer Part Number
20-101-1028
Description
MODULE RABBITCORE RCM3750
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-101-1028.pdf
(172 pages)
Specifications of 20-101-1028
Module/board Type
MPU Core Module
Product
Microcontroller Modules
Core Processor
Rabbit 3000
Flash
512 KBytes
Operating Supply Voltage
4.75 to 5.25 V
Board Size
75 mm x 30 mm x 23 mm
For Use With/related Products
RCM3750
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
316-1110
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B.1.5.4 A/D Converter Calibration
To get the best results from the A/D converter, it is necessary to calibrate each mode (sin-
gle-ended, differential, and current) for each of its gains. It is imperative that you calibrate
each of the A/D converter inputs in the same manner as they are to be used in the applica-
tion. For example, if you will be performing floating differential measurements or differ-
ential measurements using a common analog ground, then calibrate the A/D converter in
the corresponding manner. The calibration must be done with the attenuator reference
selection jumper in the desired position (see Figure B-5). If a calibration is performed and
the jumper is subsequently moved, the corresponding input(s) must be recalibrated. The
calibration table in software only holds calibration constants based on mode, channel, and
gain. Other factors affecting the calibration must be taken into account by calibrating
using the same mode and gain setup as in the intended use.
Sample programs are provided to illustrate how to read and calibrate the various A/D
inputs for the three operating modes.
These sample programs are found in the
Section 3.2.3 for more information on these sample programs and how to use them.
User’s Manual
Single-Ended, one channel
Single-Ended, all channels
Milliamp, one channel
Differential, analog ground
Mode
AD_RDSE_ALL.C
AD_RDMA_CH.C
AD_RDDIFF_CH.C
ADC
subdirectory in
Read
—
SAMPLES\RCM3700
AD_CALSE_CH.C
AD_CALSE_ALL.C
AD_CALMA_CH.C
AD_CALDIFF_CH.C
Calibrate
. See
99
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