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MCA166-USB
MCA Hardware Setup Commands:
Command name
CMD_SET_GAIN
Description The command sets the amplifier coarse(cg) and fine gain(fg).
cg: 2, 5, 10, 20, 50, 100, 200, 500 or 1000
fg: 5000 ... 15000 (for cg = 1000 fg: 5000 ... 10000)
Command syntax
Format integer integer integer long integer
Parameter preamble command cg fg end flag
Byte String (HEX) A5 5A 4C 00 cg
l
cg
h
fg
l
fg
h
00 00 B9 9B
Used setup value None
Affected setup value coarse_gain, fine_gain
MCA state STATE_READY
Command name
CMD_SET_INPUT_POLARITY
Description The command sets the input polarity for the internal amplifier.
ip = 0 positive input signals
ip = 1 negative input signals
Command syntax
Format integer integer integer long integer
Parameter preamble command ip 0 end flag
Byte String (HEX) A5 5A 56 00 ip 00 00 00 00 00 B9 9B
Used setup value None
Affected setup value mca_input_pol
MCA state STATE_READY
Command name
CMD_SET_MCA_INPUT
Description The command sets the ADC input to amplifier or to direct.
ip = 0 input amplifier
ip = 3 input direct (0 ... +3V, PUR OFF)
ip = 4 input direct (0 ... -3V, PUR OFF)
Command syntax
Format integer integer integer long integer
Parameter preamble command ip 0 end flag
Byte String (HEX) A5 5A 54 00 ip 00 00 00 00 00 B9 9B
Used setup value None
Affected setup value mca_input_adc
MCA state STATE_READY
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