VLD EPICS development » History » Revision 6
Revision 5 (Bryan Moffit, 02/15/2023 01:15 AM) → Revision 6/7 (Bryan Moffit, 02/15/2023 01:17 AM)
h1. VLD EPICS development
h2. Run the IOC
* log into hccoda@nps-vme4 from a terminal
<pre>
ssh hccoda@nps-vme4
</pre>
* execute startup script (located in $HOME/bin)
<pre>
startIOC
</pre>
h2. Calibration test script
Enable / disable the random pulser to the connector and channels defined in the script.
* log into hccoda@cdaql3 from a terminal
<pre>
ssh hccoda@cdaql3
</pre>
* execute calibration test script
<pre>
cd $HOME/scripts/VLD
./vld_calibration_test [0,1]
</pre>
> * Usage
<pre>
vld_calibration_test.sh [0,1]
0: disable
1: enable
</pre>
> * Script variable description
> > * *VLDSLOT*
> > > IOC Base name + VLD Slot number. This is defined by the IOC startup script. Currently vme4 for nps-vme4, and VLD17 for the VLD in that crate.
> > * *PULSER_SETTING*
> > > Enum for random pulser setting
<pre>
0: 700kHz
1: 350kHz
2: 175kHz
3: 87.5kHz
...
7: 5.5kHz
...
15: 21 Hz
</pre>
> > * *TRIG_SOURCE*
> > > Source to trigger pulser
<pre>
0: always high (should be Periodic trigger),
1: random trigger only
2: FP_trigger
</pre>
> > * *C0_LOW_MASK*, *C0_HIGH_MASK*, *C1_LOW_MASK*, *C1_HIGH_MASK*, etc..
> > > Connector channel enable bitmasks. E.g. to enable connection 0's channel 0 and 1,
<pre>
C0_LOW_MASK=0x3
</pre>
h2. Square wave pulse script
Set the pulse waveform to a square wave with specified width and amplitude
* log into hccoda@cdaql3 from a terminal
<pre>
ssh hccoda@cdaql3
</pre>
* execute square wave pulse script
<pre>
cd $HOME/scripts/VLD
./vld_square_pulse.sh [width] [amplitude]
</pre>
> * Usage
<pre>
vld_square_pulse.sh [width] [amplitude]
width: steps of 2ns [0, 1000]
amplitude: DAC setpoint at each step [0, 63]
</pre>
h2. Periodic Pulser script
Set the parameters for the periodic pulser.
* log into hccoda@cdaql3 from a terminal
<pre>
ssh hccoda@cdaql3
</pre>
* execute periodic pulser square wave pulse script
<pre>
cd $HOME/scripts/VLD
./vld_periodic_pulser.sh ./vld_square_pulse.sh [width] [amplitude]
</pre>
> * Usage
<pre>
vld_periodic_pulser.sh [period] [period_range] [number]
[period] : Pulser period in units of period_range
[period_range] : 0: 8 nanoseconds
: 1: 8.2 microseconds
[number] : Number of pulses. 65535 for unlimited
</pre>