... | @@ -18,97 +18,8 @@ The provided software comprises |
... | @@ -18,97 +18,8 @@ The provided software comprises |
|
|
|
|
|
## Documentation
|
|
## Documentation
|
|
|
|
|
|
https://www.ohwr.org/project/fine-delay-sw/wikis/Documents/HW/SW-manual-for-release-1.1
|
|
The software (and hardware) manuals for the release v1.1 can be found in
|
|
|
|
the [documents section](https://www.ohwr.org/project/fine-delay-sw/wikis/Documents/HW/SW-manual-for-release-1.1)
|
|
- Full details in the [Functional system
|
|
|
|
specifications](FmcDelFuncSpec)
|
|
|
|
|
|
|
|
### Specification overview
|
|
|
|
|
|
|
|
<table>
|
|
|
|
<tbody>
|
|
|
|
<tr class="odd">
|
|
|
|
<td><strong>Parameter</strong></td>
|
|
|
|
<td><strong>Value</strong></td>
|
|
|
|
</tr>
|
|
|
|
<tr class="even">
|
|
|
|
<td>Channels</td>
|
|
|
|
<td>1 trigger input, 4 outputs</td>
|
|
|
|
</tr>
|
|
|
|
<tr class="odd">
|
|
|
|
<td>Signal connectors</td>
|
|
|
|
<td>LEMO 00 for all signals</td>
|
|
|
|
</tr>
|
|
|
|
<tr class="even">
|
|
|
|
<td>FMC connector</td>
|
|
|
|
<td>Low Pin Count (LPC)</td>
|
|
|
|
</tr>
|
|
|
|
<tr class="odd">
|
|
|
|
<td>Signal level</td>
|
|
|
|
<td>TTL, outputs capable of driving a 50 Ohm load, > 2 V/ns slew rate</td>
|
|
|
|
</tr>
|
|
|
|
<tr class="even">
|
|
|
|
<td>Operating modes</td>
|
|
|
|
<td><strong>Pulse delay</strong>: on trigger, generates a pulse or series of pulses of given width and repetition rate on chosen outputs after a certain time programmed by the user.<br />
|
|
|
|
<strong>Single channel TDC</strong>: time tags incoming trigger pulses available via a circular buffer.<br />
|
|
|
|
<strong>Pulse generator</strong>: produces a pulse or a series of pulses of arbitrary length and repetition rate starting at a given UTC/TAI time.</td>
|
|
|
|
</tr>
|
|
|
|
<tr class="odd">
|
|
|
|
<td>Minimum input pulse width</td>
|
|
|
|
<td>100 ns. Pulses below 24 ns are ignored.</td>
|
|
|
|
</tr>
|
|
|
|
<tr class="even">
|
|
|
|
<td>Maximum input pulse rate</td>
|
|
|
|
<td>2 MHz (minimum pulse spacing: 50 ns)</td>
|
|
|
|
</tr>
|
|
|
|
<tr class="odd">
|
|
|
|
<td>Output pulse width</td>
|
|
|
|
<td>50 ns - 1 s (10 ps resolution)</td>
|
|
|
|
</tr>
|
|
|
|
<tr class="even">
|
|
|
|
<td>Output pulse spacing</td>
|
|
|
|
<td>100 ns - 1 s (10 ps resolution)</td>
|
|
|
|
</tr>
|
|
|
|
<tr class="odd">
|
|
|
|
<td>Output pulse repeat count (train generation)</td>
|
|
|
|
<td>1 - 65536 pulses or infinity (continuous mode)</td>
|
|
|
|
</tr>
|
|
|
|
<tr class="even">
|
|
|
|
<td>Timebase accuracy</td>
|
|
|
|
<td>± 4ppm<br />
|
|
|
|
The timebase from a local TCXO on FMC card needs calibration. The 4ppm accuracy is the one of the on-board TCXO. Cesium-quality accuracy will be reached when used on a <a href="https://www.ohwr.org/project/white-rabbit/wikis/Description">White Rabbit</a> enabled FMC carrier.</td>
|
|
|
|
</tr>
|
|
|
|
<tr class="odd">
|
|
|
|
<td>TDC Resolution</td>
|
|
|
|
<td>28 ps</td>
|
|
|
|
</tr>
|
|
|
|
<tr class="even">
|
|
|
|
<td>TDC Precision (std. dev)</td>
|
|
|
|
<td>55 ps</td>
|
|
|
|
</tr>
|
|
|
|
<tr class="odd">
|
|
|
|
<td>Accuracy</td>
|
|
|
|
<td>± (300 ps + timebase accuracy)</td>
|
|
|
|
</tr>
|
|
|
|
<tr class="even">
|
|
|
|
<td>Time tag buffer</td>
|
|
|
|
<td>1024-entries circular buffer with time tags for input/output pulses. Buffer interrupt (with timeout/threshold coalescing)</td>
|
|
|
|
</tr>
|
|
|
|
</tbody>
|
|
|
|
</table>
|
|
|
|
|
|
|
|
-----
|
|
|
|
|
|
|
|
## Detailed project information
|
|
|
|
|
|
|
|
- **Official production documentation (schematics, PCB, etc.):**
|
|
|
|
[EDMS: EDA-02267](http://edms.cern.ch/nav/EDA-02267)
|
|
|
|
- Card aka *FMC6* and *Fine Delay*
|
|
|
|
- LHC Equipment name: CFFIB
|
|
|
|
- [Controls Configuration Database
|
|
|
|
entry](https://cs-ccr-oas1.cern.ch/pls/htmldb_accdb/f?p=104:4:3830156415073988::::P4_LETTER,P4_DETAILS,P4_CODE:C,YES,CFFIB))
|
|
|
|
- Controls EDMS page
|
|
|
|
- [Software](Software)
|
|
|
|
|
|
|
|
-----
|
|
-----
|
|
|
|
|
... | | ... | |