Demonstration Executable

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=2 height=50 BGCOLOR="#333366" TEXT="#080000"> <div> <B>Demonstration Executable</B></div> <div> </div> </td> </tr><tr> <td valign="top" width=165 BGCOLOR="#CCCC99" TEXT="#080000"> <div> <B> <TABLE BORDER="0" CELLPADDING="2" CELLSPACING="1" WIDTH="132" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 35 ><NOBR><div> <A HREF="id125.htm" TARGET="_top" TITLE="Ada 83 Source Code"><U><B><IMG SRC="001151d0.gif" border=0 width="21" height="29" ALT="previous" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></U></A></div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> <IMG BORDER="0" SRC="1x1.gif" HEIGHT="29" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" WIDTH="21"></div> </NOBR></tD> <tD VALIGN=TOP WIDTH="20"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="35" ALIGN="bottom" WIDTH="20" HSPACE="0" VSPACE="0"></tD> <tD VALIGN=TOP><NOBR><div> <A HREF="id47.htm" TARGET="_top" TITLE="Data Handling Software"><U><B><IMG SRC="0060d1d0.gif" border=0 width="13" height="29" ALT="up" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></U></A></div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> <A HREF="id148.htm" TARGET="_top" TITLE="ERC32 Target Simulator"><U><B><IMG SRC="0051b1d0.gif" border=0 width="27" height="29" ALT="down" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></U></A></div> </NOBR></tD> </tR> </TABLE></B></div> <div> <A HREF="id121.htm" TARGET="_top" TITLE="Demonstration Data Handling System Softw"><U>Demonstration Data Handling System Software Implementation</U></A></div> <div> <A HREF="id125.htm" TARGET="_top" TITLE="Ada 83 Source Code"><U>Ada 83 Source Code</U></A></div> <div> <B>Demonstration Executable</B></div> <bR> <div> <I><B>Possible platforms</B></I><B>:</B></div> <div> <A HREF="id148.htm" TARGET="_top" TITLE="ERC32 Target Simulator"><U>ERC32 Target Simulator</U></A></div> <div> <A HREF="id149.htm" TARGET="_top" TITLE="SPARC Instruction Simulator"><U>SPARC Instruction Simulator</U></A></div> </td> <td valign="top" height=430 BGCOLOR="#FFFFFF" TEXT="#080000"> <div> A demonstration executable has been produced in order to provide the possibility of trying out the data handling software in reality. The binary file may be loaded onto an ERC32 simulator demonstrating the execution of a set of predefined telecommands resulting in generation of a sequence of telemetry source packets.</div> <bR> <div> Scenario</div> <div> The executable comprises the data handling system described in <A HREF="id120.htm" TARGET="_top" TITLE="Demonstration Data Handling System Softw"><U>Demonstration Data Handling System Software Architecture</U></A>. Four telecommands are included destined for the <A HREF="id120_telecommand_scheduler.htm" TARGET="_top" TITLE="Demonstration Data Handling System Softw"><U>Telecommand Scheduler</U></A> application process. The telecommands belongs to the <A HREF="id108.htm" TARGET="_top" TITLE="Onboard Scheduling Service"><U>Onboard Scheduling Service</U></A> and does the following:</div> <bR> <div> <TABLE BORDER="2" CELLPADDING="2" CELLSPACING="1" WIDTH="519" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=CENTER HEIGHT= 38 WIDTH="429"><div> <I><B>Action</B></I></div> </tD> <tD VALIGN=CENTER WIDTH="71"><div> <I><B>Service Type</B></I></div> </tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 59 WIDTH="429"><div> Insert two telecommands in sub-schedule 1.</div> <div> Commands are destined for <A HREF="id120_attitude_control_system.htm" TARGET="_top" TITLE="Demonstration Data Handling System Softw"><U>Attitude Control System</U></A> application process</div> </tD> <tD VALIGN=CENTER WIDTH="71"><div> <A HREF="id108_insert_telecommands_in_command_schedule.htm" TARGET="_top" TITLE="Onboard Scheduling Service"><U>(11,4)</U></A></div> </tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 38 WIDTH="429"><div> Enable scheduling for <A HREF="id120_attitude_control_system.htm" TARGET="_top" TITLE="Demonstration Data Handling System Softw"><U>Attitude Control System</U></A> application process</div> </tD> <tD VALIGN=CENTER WIDTH="71"><div> <A HREF="id108_enable_release_of_selected_telecommands.htm" TARGET="_top" TITLE="Onboard Scheduling Service"><U>(11,1)</U></A></div> </tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 19 WIDTH="429"><div> Enable release from command schedule</div> </tD> <tD VALIGN=CENTER WIDTH="71"><div> <A HREF="id108_enable_release_of_selected_telecommands.htm" TARGET="_top" TITLE="Onboard Scheduling Service"><U>(11,1)</U></A></div> </tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 19 WIDTH="429"><div> Enable release from sub-schedule 1</div> </tD> <tD VALIGN=CENTER WIDTH="71"><div> <A HREF="id108_enable_release_of_selected_telecommands.htm" TARGET="_top" TITLE="Onboard Scheduling Service"><U>(11,1)</U></A></div> </tD> </tR> </TABLE></div> <bR> <div> The two telecommands will thus be released in due time.</div> <div> All telecommands request acknowledgment for all stages of execution, resulting in a range of verification reports as defined by <A HREF="id102.htm" TARGET="_top" TITLE="Telecommand Verification Service"><U>Telecommand Verification Service</U></A>.</div> <bR> <div> The above telecommand sequence will be executed over and over again until execution is stopped.</div> <bR> <div> Execution Setup</div> <div> The setup varies depending on the type of ERC32 simulator being used. Please select amongst the following alternatives to get specific information on how to execute the demonstration:</div> <bR> <div> <A HREF="id148.htm" TARGET="_top" TITLE="ERC32 Target Simulator"><U><IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">ERC32 Target Simulator</U></A></div> <div> <A HREF="id149.htm" TARGET="_top" TITLE="SPARC Instruction Simulator"><U><IMG BORDER="0" SRC="Symb075c00b700f000000000.gif" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">SPARC Instruction Simulator</U></A></div> <bR> <div> Implementation</div> <div> A stub has been introduced in the <A HREF="id120_ground_if.htm" TARGET="_top" TITLE="Demonstration Data Handling System Softw"><U>Ground IF</U></A> component simulating reception of telecommand source packets based on an interrupt.</div> <div> Telecommands are hard-coded as raw bytes in the Ada package <I>TC_Batch</I> (see <A HREF="http://spd-web.terma.com/Projects/OBOSS/DHS_Executable/TC_Batch.ads" TARGET="_top" TITLE="http://spd-web.terma.com/Projects/OBOSS/"><U>specification </U></A>and <A HREF="http://spd-web.terma.com/Projects/OBOSS/DHS_Executable/TC_Batch.adb" TARGET="_top" TITLE="http://spd-web.terma.com/Projects/OBOSS/"><U>body</U></A>).</div> <div> Injection of telecommands into the system is triggered by an interrupt that may be generated manually on the ERC32 simulator, or will be generated with a period of 2.5 seconds by the <I>Generator</I> package (see <A HREF="http://spd-web.terma.com/Projects/OBOSS/DHS_Executable/Generator.ads" TARGET="_top" TITLE="http://spd-web.terma.com/Projects/OBOSS/"><U>specification </U></A>and <A HREF="http://spd-web.terma.com/Projects/OBOSS/DHS_Executable/Generator.adb" TARGET="_top" TITLE="http://spd-web.terma.com/Projects/OBOSS/"><U>body</U></A>).</div> <bR> </td> </tr></table></body>