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Conv TTL Blocking - Gateware
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6b98bb0d
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6b98bb0d
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Feb 20, 2017
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doc/gw-test-procedure: Tests for pulse counters
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gw-test-procedure.tex
doc/gw-test-procedure/gw-test-procedure.tex
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doc/gw-test-procedure/gw-test-procedure.tex
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6b98bb0d
...
...
@@ -584,6 +584,43 @@ threshold. The following test should be performed on all TTL inputs.
\end{enumerate}
\end{enumerate}
%==============================================================================
\subsection
{
Pulse counters test
}
\label
{
sec:proc-counters
}
%==============================================================================
\begin{enumerate}
\item
Switch the
\textbf
{
TTL switch
}
(Figure~
\ref
{
fig:switches
}
) to the
\textbf
{
TTL
}
position.
\item
Switch the
\textbf
{
glitch filter switch
}
(Figure~
\ref
{
fig:switches
}
) to the
\textbf
{
GF DIS
}
position.
\item
Switch the
\textbf
{
pulse duration switch
}
(Figure~
\ref
{
fig:switches
}
) to the
\textbf
{
SHORT
}
position.
\item
Set the generator to emit a pulse burst with a known number of pulses (if you use Agilent 33250A,
you may automate this step using the
\textit
{
pulsegen
}
script, see Appendix~
\ref
{
pulsegen
}
)
\item
\label
{
item:counter-proc
}
Repeat the following steps for
\textbf
{
all six channels
}
, filling in the
\textbf
{
table in Appendix~
\ref
{
app:counter-validation
}}
:
\begin{enumerate}
\item
Connect the pulse generator to the
\textbf
{
tested front panel input
}
\item
Reset the pulse counters by running the
\textit
{
clrchrxpcr.py
}
script (
\textit
{
software/diag/clrchrxpcr.py
}
)
\item
Trigger the generator to emit a pulse burst
\item
Read the pulse counter values by running the rdchxpcr.py script (
\textit
{
software/diag/rdchxpcr.py
}
)
\item
Verify that only the tested channel TTL counter value is equal to the number of pulses set on the generator while others are zero,
and if so
\textbf
{
tick
}
the
\textbf
{
TTL column for the channel
}
in the table in Appendix~
\ref
{
app:counter-validation
}
\item
Connect the pulse generator to the
\textbf
{
tested rear panel input
}
\item
Reset the pulse counters by running the
\textit
{
clrchrxpcr.py
}
script (
\textit
{
software/diag/clrchrxpcr.py
}
)
\item
Trigger the generator to emit a pulse burst
\item
Read the pulse counter values by running the rdchxpcr.py script (
\textit
{
software/diag/rdchxpcr.py
}
)
\item
Verify that only the tested channel Blo counter value is equal to the number of pulses set on the generator while others are zero,
and if so
\textbf
{
tick
}
the
\textbf
{
Blo column for the channel
}
in the table in Appendix~
\ref
{
app:counter-validation
}
\end{enumerate}
\item
Turn off power to the ELMA crate
\item
Change the
\textbf
{
pulse duration switch
}
(Figure~
\ref
{
fig:switches
}
) to the
\textbf
{
LONG
}
position
\item
Turn on power to the ELMA crate
\item
Repeat the steps under step~
\ref
{
item:ttl-proc
}
, filling in the table in
Appendix~
\ref
{
app:pulse-validation-ttlbar-gf
}
\item
Turn off power to the ELMA crate
\item
Change the
\textbf
{
pulse duration switch
}
(Figure~
\ref
{
fig:switches
}
) back to the
\textbf
{
SHORT
}
position
\item
Turn on power to the ELMA crate
\end{enumerate}
%==============================================================================
\subsection
{
Remote reprogramming test
}
\label
{
sec:proc-multiboot
}
...
...
@@ -846,6 +883,47 @@ Instructions for filling in the table:
is as specified in step~
\ref
{
item:ttlbar
-
meas
-
blo
-
out
}
\end
{
itemize
}
%==============================================================================
% APP: Pulse counters validation table, GF off
%==============================================================================
\pagebreak
\section
{
Pulse counters validation table
}
\label
{
app:counter
-
validation
}
\centerline
{
\resizebox
{
.
6
\textwidth
}{
!
}{
\begin
{
tabular
}{
|l|
*
{
4
}{
c
}
|
*
{
4
}{
c
}
|
}
\hline
\textbf
{
Pulse
}
&
\multicolumn
{
2
}{
c|
}{
\textbf
{
Long
}}
&
\multicolumn
{
2
}{
c|
}{
\textbf
{
Short
}}
\\
\hline
\textbf
{
Output
}
&
\textbf
{
TTL
}
&
\textbf
{
Blo
}
&
\textbf
{
TTL
}
&
\textbf
{
Blo
}
\\
\hline
\textbf
{
CH
1
}
&
$
\square
$
&
$
\square
$
&
$
\square
$
&
$
\square
$
\\
\textbf
{
CH
2
}
&
$
\square
$
&
$
\square
$
&
$
\square
$
&
$
\square
$
\\
\textbf
{
CH
3
}
&
$
\square
$
&
$
\square
$
&
$
\square
$
&
$
\square
$
\\
\textbf
{
CH
4
}
&
$
\square
$
&
$
\square
$
&
$
\square
$
&
$
\square
$
\\
\textbf
{
CH
5
}
&
$
\square
$
&
$
\square
$
&
$
\square
$
&
$
\square
$
\\
\textbf
{
CH
6
}
&
$
\square
$
&
$
\square
$
&
$
\square
$
&
$
\square
$
\\
\hline
\end
{
tabular
}
}
}
\vspace
*
{
11
pt
}
Instructions for filling in the table:
\begin
{
itemize
}
\item
Make sure the glitch filter switch is set to
\textbf
{
GF DIS
}
\item
Following the test procedure in Section~
\ref
{
sec:proc
-
counters
}
(
under step~
\ref
{
item:counter
-
proc
}
)
,
tick each box if the number of counted pulses matches the number of pulses set on the generator
\item
Perform the tests once when the pulse duration switch is set to
\textbf
{
LONG
}
and once when the switch is set to
\textbf
{
SHORT
}
\item
Start with inputting a signal from the pulse generator on the front panel,
then after validation, change the input to the rear panel
\item
Tick the
\textbf
{
TTL
}
boxes if the test is passed for
\textbf
{
TTL
}
input
\item
Tick the
\textbf
{
Blo
}
boxes if the test is passed for
\textbf
{
Blo
}
input
\end
{
itemize
}
%==============================================================================
% APP: Pulse rejection validation
%==============================================================================
...
...
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