Let's try pasting the second link again: http://www.xilinx.com/xlnx/xweb/xil_tx_display.jsp?sTechX_ID=alpa_thousand&iLanguageID=1&iCountryID=1 At 08:54 AM 4/13/2005 -0700, steve weir wrote: >Chirag, you can find information on that from the Xilinx web site: >http://www.xilinx.com/esp/mil_aero/collateral/RadiationEffects/neutron_single.pdf, > > >http://www.xilinx.com/esp/mil_aero/collateral/RadiationEffects/neutron_single.pdf > >The first report is more quantitative, but was performed on much older >0.35u and larger devices. The second report is both more current and more >qualitative. I'll leave it to you to decide if you agree with the >subjective conclusions or not. > >Steve > > >At 11:33 AM 4/13/2005 -0400, Chirag Shroff (cshroff) wrote: > >=20 > >-----BEGIN PGP SIGNED MESSAGE----- > >Hash: SHA1 > > > >Hi Scott/Steve, > > I understand SEU impact and mitigation techniques for space > >applications. I am interested in seeing SEU data for sea level.=20 > > > >- --Chirag Shroff=20 > >Hardware Engineer=20 > >GSU (Government System Unit), Cisco Systems Inc.=20 > >Phone: (919) 392-6556=20 > >Email : cshroff@xxxxxxxxx=20 > >=20 > > > > >>-----Original Message----- > > >>From: Scott McMorrow [mailto:scott@xxxxxxxxxxxxx]=20 > > >>Sent: Wednesday, April 13, 2005 11:23 AM > > >>To: Chirag Shroff (cshroff) > > >>Cc: ray.anderson@xxxxxxxxxx; Bradley.S.Henson@xxxxxxxxxx;=20 > > >>si-list@xxxxxxxxxxxxx > > >>Subject: SEU errors > > >> > > >>Chirag, > > >> > > >>The current research indicates that SEU errors are possible=20 > > >>for SRAM-based FPGA's. Whether they occur in near sea-level=20 > > >>applications to any high probability is up for grabs. But it=20 > > >>is such a concern in aircraft applications that mil-aero=20 > > >>contractors are designing circuits with redundant FPGAs for=20 > > >>airborne applications. > > >> > > >> > > >>Regards, > > >> > > >>scott > > >> > > >> > > >> > > >>Scott McMorrow > > >>Teraspeed Consulting Group LLC > > >>121 North River Drive > > >>Narragansett, RI 02882 > > >>(401) 284-1827 Business > > >>(401) 284-1840 Fax > > >> > > >>http://www.teraspeed.com > > >> > > >>TeraspeedR is the registered service mark of Teraspeed=20 > > >>Consulting Group LLC > > >> > > >> > > >> > > >>Chirag Shroff (cshroff) wrote: > > >> > > >>>=3D20 > > >>>-----BEGIN PGP SIGNED MESSAGE----- > > >>>Hash: SHA1 > > >>> > > >>> Our SEU research group has several test sites co-located at=20 > > >>a number=20 > > >>>of high-altitude astronomical observatory mountain top locations. > > >>> > > >>>So do you see Soft error events on these test sites ? > > >>> > > >>>- --Chirag Shroff > > >>> > > >>> =3D20 > > >>> > > >>>-----BEGIN PGP SIGNATURE----- > > >>>Version: PGP 8.1 > > >>> > > >>>iQA/AwUBQl016InQs7uCgmQlEQJ0LwCdHq9/FovY+lXWcgQZh5CurnWlcj0An2jz > > >>>qx+cWXizPKM90lxGzoNi9u5r > > >>>=3D3D78SN > > >>>-----END PGP SIGNATURE----- > > >>>------------------------------------------------------------------ > > >>>To unsubscribe from si-list: > > >>>si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject > > >>>field =20 > > >>> > > >>>or to administer your membership from a web page, go to: > > >>>//www.freelists.org/webpage/si-list > > >>> > > >>>For help: > > >>>si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field > > >>> > > >>>List FAQ wiki page is located at: > > >>> http://si-list.org/wiki/wiki.pl?Si-List_FAQ > > >>> > > >>>List technical documents are available at: > > >>> http://www.si-list.org > > >>> > > >>>List archives are viewable at: =20 > > >>> //www.freelists.org/archives/si-list > > >>>or at our remote archives: > > >>> http://groups.yahoo.com/group/si-list/messages > > >>>Old (prior to June 6, 2001) list archives are viewable at: > > >>> http://www.qsl.net/wb6tpu > > >>> =20 > > >>> > > >>> > > >>> =20 > > >>> > > > >-----BEGIN PGP SIGNATURE----- > >Version: PGP 8.1 > > > >iQA/AwUBQl0724nQs7uCgmQlEQKQggCgolKeYRB8QoBn+t8Ae0eKxSRTizIAoPvl > >auPTxYzXWtm9zNOgtSs9lEmB > >=3D2E4r > >-----END PGP SIGNATURE----- > >------------------------------------------------------------------ > >To unsubscribe from si-list: > >si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field > > > >or to administer your membership from a web page, go to: > >//www.freelists.org/webpage/si-list > > > >For help: > >si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field > > > >List FAQ wiki page is located at: > > http://si-list.org/wiki/wiki.pl?Si-List_FAQ > > > >List technical documents are available at: > > http://www.si-list.org > > > >List archives are viewable at: > > //www.freelists.org/archives/si-list > >or at our remote archives: > > http://groups.yahoo.com/group/si-list/messages > >Old (prior to June 6, 2001) list archives are viewable at: > > http://www.qsl.net/wb6tpu > > > > >------------------------------------------------------------------ >To unsubscribe from si-list: >si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field > >or to administer your membership from a web page, go to: >//www.freelists.org/webpage/si-list > >For help: >si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field > >List FAQ wiki page is located at: > http://si-list.org/wiki/wiki.pl?Si-List_FAQ > >List technical documents are available at: > http://www.si-list.org > >List archives are viewable at: > //www.freelists.org/archives/si-list >or at our remote archives: > http://groups.yahoo.com/group/si-list/messages >Old (prior to June 6, 2001) list archives are viewable at: > http://www.qsl.net/wb6tpu > ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu