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\centerline {\bf 2.3\_V2.0 ACIS Load from Uplink Test } 
\vspace{0.25in}

\normalsize
\noindent{\it Last Revised: June 27, 1999}\\
\noindent{\bf Filename: uplink\_boot}\\

\noindent {\bf BRIEF FUNCTIONAL DESCRIPTION:} \\
\normalsize
This activity checks the ``Load from Uplink'' feature of the ACIS
DPA, and checks the ACIS bi-level telemetry. This activity is heavily
based on the DPA Bilevel Telemetry Test test from the the ACIS Long Form
Functional Procedure (see MIT Document 36-01301.01 Rev. E). \\

The ACIS instrument boot software is capable of loading code from
either EEPROM or from uplinked software command packets. The ``code''
used for this activity has the following behaviors:
\be
\item
It does not touch the watchdog timer, allowing a test of the timer
\item
It does not read the command FIFO, allowing a test of filling the FIFO
\item
It cycles through the BEP ``LED'' bi-level telemetry \\
\ee

This activity consists of the following overall steps:
\be
\item
Perform a ``Load from Uplink'' on the Side A DPA and check the Watchdog Timer
\item
Verify the DPA Side-A uplink FIFO bi-level telemetry
\item
Perform a ``Load from EEPROM'' and check the Watchdog indicator
\item
Repeat the above steps for DPA Side B \\
\ee

The ``Load from Uplink'' step consists of the following substeps:
\be
\item
Select the appropriate BEP and verify the bi-level telemetry indicator
\item
Place the BEP into a ``Load from Uplink'' state
\item
Perform the load and verify the bi-level telemetry indicators
\item
Verify that the watchdog timer resets the BEP
\item
Re-load and verify that the watchdog timer is disabled and the code runs \\
\ee

The verifiers for the setup and these runs will consist of the software and
hardware bi-level telemetry items and a BEP Startup Message telemetry packet.

\vspace{0.15in}
\normalsize
\noindent {\bf ASSUMED INSTRUMENT STATE:} \\
\normalsize
This assumes that both DPA Side A and B and DEA A  are on, with
the Side A BEP selected.
If not consult other procedures. \\

%\vspace{0.25in}
\normalsize
\noindent {\bf SPECIAL INITIAL CONDITIONS:} \\
\normalsize
Spacecraft telemetry must be in either Format 1 or 2 throughout the
operation. \\

%\newpage 

%\vspace{0.25in}
\normalsize
\noindent {\bf OPERATIONAL CONSTRAINTS/CAUTIONS:} \\
\normalsize
Patches in either BEP will be removed by this procedure. \\

\vspace{0.15in}
\normalsize
\noindent {\bf REFERENCES:} \\
\normalsize
ACIS Long Form Functional Procedure - MIT Document 36-01301.01 Rev. E

\normalsize
\noindent {\bf CHANGE HISTORY:} \\
\normalsize

{\bf V1.2}
\begin{itemize}
\item adjusted descriptive text to fit entire table on a page
\end{itemize}

{\bf V1.3}
\begin{itemize}
\item edited step 1 to include only the cold boot of BEP A
\item changed step 2 to include the boot from uplink test for BEP A
\item added step 2.4 to set the boot modifier off
\item added new steps 2.7-2.11, deleted old steps 1.10-1.13
\item removed first cold boot in step 3 so that there is now only one
cold boot
\item edited step 4 to include only the selecton and cold boot of BEP B
\item changed step 5 to include the boot from uplink test for BEP B
\item added step 5.4 to set the boot modifier off
\item added new steps 5.7-5.11, deleted old steps 4.10-4.13
\item added step 7 to switch back to BEP A
\item updated criticality and realtime contact column throughout the
procedure
\end{itemize}

{\bf V1.4}
\begin{itemize}
\item edited ``Assumed Instrument State'' to delete comment that the
BEP should be running an unpatched version of the SW
\item changed ``Command Description'' in 2.3 and 5.3 to
``executeUpload''
\item deleted old steps 2.8 and 5.8 which check the SW LEDs to verify
the BEP had reset
\end{itemize}

{\bf V2.0}
\begin{itemize}
\item ACIS Team signed-off version, identical to previous version 1.4
\end{itemize}

\newcommand{\tablecaptiontext}{ACIS Load from Uplink Test}
\input{uplink_boot.tab}

\end{document}
