DSPEC
®
Digital Gamma-Ray Spectrometer
46
SHOW_DITHER
Show the status of the dither.
Responses:
DITH_ENA 000000
Dither is enabled.
DITH_DIS 000000
Dither is disabled.
SHOW_DSP
num, command
Debugging command that can be used to directly read parameters within the digital signal
processor chips. Num (1–4) selects which DSP chip will receive the command and command
(0–7) indicates which parameter will be reported. The command responds with both a 24-bit
signed representation and a floating point representation of the parameter.
Responses:
DSP 000000004194304 0000000000000.5
Parameter is set to 0.5.
SHOW_GAIN_ADJUSTMENT
Returns the current gain peak stabilization adjustment as a number from –32767 to 32767.
This value changes dynamically when gain stabilization is enabled. See also
SET_GAIN_ADJUSTMENT.
Responses:
GAIN_ADJ 00000000000
No adjustment.
GAIN_ADJ 00000032767
Maximum adjustment.
GAIN_ADJ –00000032767
Minimum adjustment.
SHOW_GAIN_CHANNEL
Reports the current center channel for the stabilizer gain peak. See also
SET_GAIN_CHANNEL.
Responses:
$C00000087<CR>
Gain channel has not been set.
$C00002089<CR>
Gain channel is channel 2 (lowest possible channel).
... ...
$C16382107<CR>
Gain channel is channel 16382 (highest possible channel).
SHOW_GAIN_COARSE
Returns the coarse gain for the DSPEC internal amplifier. In operation, the resulting signal
gain is the product of the coarse gain, the fine gain, and the super-fine gain (used by
stabilizer). The coarse gain is returned in terms of an integer gain multiplier. This command is
available only on Model 92X MCBs.
Responses:
$C00001089<CR>
Coarse gain reported as 1.
$C00002089<CR>
Coarse gain reported as 2.
$C00005091<CR>
Coarse gain reported as 5.
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