Z-World eDisplay OP7200, Руководство пользователя

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98 eDisplay (OP7200)
4.7.3 Serial Communication
The following sample programs are found in the
RS232
subdirectory in
SAMPLES\OP7200
.
•
PUTS.C
—This program transmits and then receives an ASCII string on Serial Ports C
and D. The serial data received are displayed in the
STDIO
window.
•
RELAYCHR.C
—This program echoes characters to or from a serial utilty such as
HyperTerminal.
The following sample programs are found in the
RS485
subdirectory in
SAMPLES\OP7200
.
•
MASTER.C
—This program demonstrates a simple RS-485 transmission of lower case
letters to a slave OP7200. The slave will send back converted upper case letters back to
the master OP7200 and display them in the
STDIO
window. Use
SLAVE.C
to program
the slave OP7200.
•
SLAVE.C
—This program demonstrates a simple RS-485 transmission of lower case
letters to a master OP7200. The slave will send back converted upper case letters back
to the master OP7200 and display them in the
STDIO window. Use
MASTER.C
to pro-
gram the master OP7200.
4.7.4 A/D Converter Inputs
The following sample programs are found in the
ADC
subdirectory in
SAMPLES\OP7200
.
•
AD_CAL_DIFF_2V.C
—Demonstrates how to recalibrate an A/D input channel being
used for a differential input with the input attenuator tied to the 2 V reference voltage.
•
AD_CAL_DIFF_GND.C
—Demonstrates how to recalibrate an A/D input channel being
used for a differential input with the input attenuator tied to analog ground.
•
ADCAL_MA_CH.C
—Demonstrates how to recalibrate an A/D input channel being used to
convert analog current measurements to generate the calibration constants for that channel.
•
ADCAL_SE_ALL.C
—Demonstrates how to recalibrate all single-ended A/D input chan-
nels for a given gain.
•
ADCAL_SE_CH.C
—Demonstrates how to recalibrate one single-ended A/D input chan-
nels to generate the calibration constants for that channel.
NOTE: The above sample programs will overwrite the calibration constants set at the factory.
•
ADRD_DIFF_2V.C
—Demonstrates how to read an A/D input channel being used for a
differential input with the input attenuator tied to the 2 V reference voltage.
•
ADRD_DIFF_GND.C
—Demonstrates how to read an A/D input channel being used for
a differential input with the input attenuator tied to analog ground.
•
ADRD_MA_CH.C
—Demonstrates how to read an A/D input channel being used to con-
vert analog current measurements using previously defined calibration constants for
that channel.
•
ADRD_SE_ALL.C
—Demonstrates how to read all single-ended A/D input channels
using previously defined calibration constants.