SpinCore Technologies RadioProcessor-G, Owner'S Manual

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RadioProcessor-G
Step 4: Specify Parameters of the Pulse Sequence
To program a pulse sequence into the RadioProcessor-G, there is one primary function that must be used:
spmri_mri_inst()
The parameters of this function are defined in Table 3.
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Table 3: SPMRI_MRI_INST Parameters.
Parameter Description
double dac_amp
specifies the amplitude of the selected DACs on a scale of
1.0 to -1.0, where 1.0 is the highest positive amplitude
and -1.0 is the most negative.
char dac_addr selects which DACs will be updated. Multiple DACs can
be selected at one time.
char write selects which DACs will have new amplitude data
written. This will not cause a new values to be seen at
the output. Multiple DACs can be selected.
char update selects which DACs will have updated outputs. The
outputs will reflect the amplitude data that was last
written. Multiple DACs can be selected.
char clear clears the write and update registers of the selected
DACs, causing them to cease outputting data. Multiple
DACs can be selected.
int freq
selects the frequency register that will be used for the
carrier signal.
int tx_phase selects the phase register that will be used for the carrier
signal.
char tx_en enables RF output if set to 1. RF output will be disabled
if set to 0.
char phase_reset resets the phase to the of the carrier signal to the initial
value.
char trigger_scan enables data acquisition when set to 1.
char envelope_freq selects the frequency register that will be used for the
envelope signal. If register 7 is used, envelope shaping
will be disabled and the phase will be reset for the
envelope frequency registers.
int amp selects the amplitude register that will be used for the
carrier signal.
char cyclops_phase not supported on the RadioProcessor-G. Set to 0.
UINT64 flags
specifies the state of the digital outputs, whether high or
low.
DWORD data the data field for the PulseBlaster opcode.
char op the opcode for the PulseBlaster instruction. See Table 3
for more information.
double delay_ns the duration of the PulseBlaster instruction.
The available instructions for the PulseBlaster core are described in detail in the RadioProcessor manual.