932502G / 0618 7. FIRMWARE COMMANDS AND RESPONSES
SHOW_HV_POLARITY
This returns the HV polarity defined in the DIM as a $F record.
Responses:
$FNEG<CR> The HV is set to negative.
$FPOS<CR> The HV is set to positive.
SHOW_HV_RECOMMEND
Returns HV in volts, in ASCII, from SMART-1 detectors.
SHOW_HV_TARGET
Under normal operation, the HV will go to this value when the HV is enabled. Reports the
current HV setting (see SET_HV) and the status of the HV power supply in the form:
$Dvvvvvsssssccc<CR>
where vvvvv represents the HV setting, and sssss represents the status of the HV bias supply
as a 16-bit decimal number with the following bit definitions:
Bit 0 (LSB): Bias supply polarity (0 = positive, 1 = negative).
Bit 1: Bias supply overload (0 = overload, 1 = normal).
Bit 2: HV enabled (0 = disabled, 1 = enabled).
Example Responses:
$D0200000003077<CR> 2000 V, negative, not overloaded, disabled.
$D0200000002076<CR> 2000 V, positive, not overloaded, disabled.
$D0200000007082<CR> 2000 V, negative, not overloaded, enabled.
SHOW_ID
Reports the sample ID string as was previously set by the SET_ID command.
Example Responses:
$FSite 123<CR> ID set to “Site 123".
$FSample 123456789<CR> ID set to “Sample 123456789".
SHOW_INHIBIT_WIDTH
Returns the current setting of the Inhibit width value in units of microseconds.
Example Responses:
INHI_WIDT 000000000000.1
SHOW_INPUT [0]
Reports the state of the Sample Ready input.
Responses:
$C00000087<CR> Sample Ready input is low.
$C00001088<CR> Sample Ready input is high.
SHOW_INTEGRAL [start_chan,number_of_chans]
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