RE: MPC555 Flash programming
"Jean-Christophe MATHAE" <[email protected]> Tue, 7 Jul 2009 15:57:38 +0200
| Newsgroups | gmane.comp.hardware.motorola.microcontrollers |
|---|---|
| Message-ID | <[email protected]> |
--MREEKKCtjWB8xMjFMS9LGmiTBrQraEtk3G7HUbx Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Allan, =20 =20 Thank you for your help! =20 I know that the problem comes from our design... I was just wondering if it has been shared but someone else, someone who h= as already found the solution ;-) =20 About EPE, on some of our PCBs EPEE is directly connected to 3.3V, and VPP = to 5V (with a Schottky from 3.3V)... =20 Jean-Christophe ________________________________ De : [email protected] [mailto:[email protected]] De la part de D= obbin Allan-R11834 Envoy=E9 : jeudi 2 juillet 2009 17:30 =C0 : [email protected] Objet : RE: [MPC500] MPC555 Flash programming Flash programming is tested over temperature in the factory. Could it be re= lated to weak pull-up on one of the prog enable pins like EPEE?=20 - Allan ________________________________ From: [email protected] <mailto:MPC500%40yahoogroups.com> on behalf o= f Jean-Christophe MATHAE Sent: Thu 7/2/2009 12:58 AM To: [email protected] <mailto:MPC500%40yahoogroups.com>=20 Subject: [MPC500] MPC555 Flash programming Hello, We have for many years a problem when programmming the MPC555 internal Flas= h module : it seems to be quiet sensitive to ambient temperature... Not all our boards are sensitive alike, but all are plagued by this problem= . Some would require heating the chip, some would require cooling it. We are using Macraigor's Flash Programmer software with a Wiggler or Raven. As anyone also encoutered this type of problem? As anyone an idea what the cause of the problem is, and how to solve it? Thank you. Best regards. Jean-Christophe MATHAE CIRTEM http://www.cirtem.com <http://www.cirtem.com> <http://www.cirtem.com/ <htt= p://www.cirtem.com/> >=20 b=E2timent Pointe Bleue 20, voie l'Occitane BP661 31319 LABEGE cedex France --MREEKKCtjWB8xMjFMS9LGmiTBrQraEtk3G7HUbx Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/htm= l4/strict.dtd"> <html> <head> </head> <body style=3D"background-color: #ffffff;"> <!--~-|**|PrettyHtmlStartT|**|-~--> <div id=3D"ygrp-mlmsg" style=3D"width:655px; position:relative;"> <div id=3D"ygrp-msg" style=3D"width: 470px; margin:0; padding:0 25px 0 0; f= loat:left; z-index:1;"> <!--~-|**|PrettyHtmlEndT|**|-~--> <div id=3D"ygrp-text" > <!--~-|**|PrettyHtmlStart|**|-~--> <br><br> <!--~-|**|PrettyHtmlEnd|**|-~--> <p>Allan,<br> <br> <br> Thank you for your help!<br> <br> I know that the problem comes from our design...<br> I was just wondering if it has been shared but someone else, someone who h= as already found the solution ;-)<br> <br> About EPE, on some of our PCBs EPEE is directly connected to 3.3V, and VPP = to 5V (with a Schottky from 3.3V)...<br> <br> Jean-Christophe<br> <br> ____________<wbr>_________<wbr>_________<wbr>__<br> <br> De : <a href=3D"mailto:MPC500%40yahoogroups.com">MPC500@yahoogroups.<wbr>co= m</a> [mailto:<a href=3D"mailto:MPC500%40yahoogroups.com">MPC500@yahoogroup= s.<wbr>com</a>] De la part de Dobbin Allan-R11834<br> Envoy=E9 : jeudi 2 juillet 2009 17:30<br> =C0 : <a href=3D"mailto:MPC500%40yahoogroups.com">MPC500@yahoogroups.<wbr>c= om</a><br> Objet : RE: [MPC500] MPC555 Flash programming<br> <br> Flash programming is tested over temperature in the factory. Could it be re= lated to weak pull-up on one of the prog enable pins like EPEE? <br> <br> - Allan<br> <br> ____________<wbr>_________<wbr>_________<wbr>__<br> <br> From: <a href=3D"mailto:MPC500%40yahoogroups.com">MPC500@yahoogroups.<wbr>c= om</a> <mailto:MPC500%<wbr>40yahoogroups.<wbr>com> on behalf of Jean= -Christophe MATHAE<br> Sent: Thu 7/2/2009 12:58 AM<br> To: <a href=3D"mailto:MPC500%40yahoogroups.com">MPC500@yahoogroups.<wbr>com= </a> <mailto:MPC500%<wbr>40yahoogroups.<wbr>com> <br> Subject: [MPC500] MPC555 Flash programming<br> <br> Hello,<br> <br> We have for many years a problem when programmming the MPC555 internal Flas= h module : it seems to be quiet sensitive to ambient temperature.<wbr>..<br= > <br> Not all our boards are sensitive alike, but all are plagued by this problem= . Some would require heating the chip, some would require cooling it.<br> <br> We are using Macraigor's Flash Programmer software with a Wiggler or Raven.= <br> <br> As anyone also encoutered this type of problem?<br> As anyone an idea what the cause of the problem is, and how to solve it?<br= > <br> Thank you.<br> <br> Best regards.<br> <br> Jean-Christophe MATHAE<br> <br> CIRTEM<br> <a href=3D"http://www.cirtem.com">http://www.cirtem.<wbr>com</a> <<a hre= f=3D"http://www.cirtem.com">http://www.cirtem.<wbr>com</a>> <<a href= =3D"http://www.cirtem.com/">http://www.cirtem.<wbr>com/</a> <<a href=3D"= http://www.cirtem.com/">http://www.cirtem.<wbr>com/</a>> > <br> <br> b=E2timent Pointe Bleue<br> 20, voie l'Occitane<br> BP661<br> 31319 LABEGE cedex<br> France<br> <br> </p> =20 </div>=20=20 <!--~-|**|PrettyHtmlStart|**|-~--> <div width=3D"1" style=3D"color: white; clear: both;">__._,_.___</div> =20=20=20=20=20=20=20=20=20=20=20 =20=20 =20=20=20=20 <!-- Start the section with Message In topic --> <div id=3D"ygrp-actbar" style=3D"clear: both; margini-bottom: 25px; whi= te-space:nowrap; color: #666; text-align: right;"> <span class=3D"left" style=3D"float: left; white-space:nowrap= ;"> <a href=3D"http://groups.yahoo.com/group/MPC500/message/4005;_ylc= =3DX3oDMTM0cHBwaDMwBF9TAzk3MzU5NzE0BGdycElkAzYyNzYzODcEZ3Jwc3BJZAMxNzA2NTU0= MjA1BG1zZ0lkAzQwMDcEc2VjA2Z0cgRzbGsDdnRwYwRzdGltZQMxMjQ2OTc1MDc3BHRwY0lkAzQ= wMDU-"> Messages in this topic </a> (<span class=3D"bld" style= =3D"font-weight:bold;">3</span>) </span> <a href=3D"http://groups.yahoo.com/group/MPC500/post;_ylc=3DX3oDMTJ= wZmhvcnQ1BF9TAzk3MzU5NzE0BGdycElkAzYyNzYzODcEZ3Jwc3BJZAMxNzA2NTU0MjA1BG1zZ0= lkAzQwMDcEc2VjA2Z0cgRzbGsDcnBseQRzdGltZQMxMjQ2OTc1MDc3?act=3Dreply&messageN= um=3D4007"> <span class=3D"bld" style=3D"font-weight:bold;"> Reply </span> (via web post) </a> |=20 <a href=3D"http://groups.yahoo.com/group/MPC500/post;_ylc=3DX3oDMTJ= ldmc0ZnFuBF9TAzk3MzU5NzE0BGdycElkAzYyNzYzODcEZ3Jwc3BJZAMxNzA2NTU0MjA1BHNlYw= NmdHIEc2xrA250cGMEc3RpbWUDMTI0Njk3NTA3Nw--" class=3D"bld" style=3D"font-wei= ght:bold;"> Start a new topic </a> </div>=20 <!------- Start Nav Bar ------> <!-- |**|begin egp html banner|**| --> <div id=3D"ygrp-vitnav" style=3D"padding-top: 10px; font-family: Verdan= a; font-size: 77%; margin: 0;"> <a href=3D"http://groups.yahoo.com/group/MPC500/messages;_y= lc=3DX3oDMTJlZjhpNW5oBF9TAzk3MzU5NzE0BGdycElkAzYyNzYzODcEZ3Jwc3BJZAMxNzA2NT= U0MjA1BHNlYwNmdHIEc2xrA21zZ3MEc3RpbWUDMTI0Njk3NTA3Nw--">Messages</a>=20=20 =20=20=20=20=20=20=20=20 | <a href=3D"http://groups.yahoo.com/group/MPC500/photos;_yl= c=3DX3oDMTJlczUyazJjBF9TAzk3MzU5NzE0BGdycElkAzYyNzYzODcEZ3Jwc3BJZAMxNzA2NTU= 0MjA1BHNlYwNmdHIEc2xrA3Bob3QEc3RpbWUDMTI0Njk3NTA3Nw--">Photos</a>=20=20 | <a href=3D"http://groups.yahoo.com/group/MPC500/links;_ylc= =3DX3oDMTJmbGI0cXVnBF9TAzk3MzU5NzE0BGdycElkAzYyNzYzODcEZ3Jwc3BJZAMxNzA2NTU0= MjA1BHNlYwNmdHIEc2xrA2xpbmtzBHN0aW1lAzEyNDY5NzUwNzc-">Links</a>=20=20 =20=20=20=20=20=20=20=20 =20=20=20=20=20=20=20=20 =20=20=20=20=20=20=20=20 =20=20=20=20=20=20=20=20 </div>=20=20 <!-- |**|end egp html banner|**| --> <div id=3D"ygrp-grfd" style=3D"font-family: Verdana; font-s= ize: 77%; padding: 15px 0;"> =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 </div> =20=20=20=20 <!-- yahoo logo --> <!-- |**|begin egp html banner|**| --> <div id=3D"ygrp-ft" style=3D"font-family: verdana; font-size: 77%; bord= er-top: 1px solid #666; padding: 5px 0;"> <a href=3D"http://groups.yahoo.com/;_ylc=3DX3oDMTJkdmUwZGZkBF9TAzk3Mz= U5NzE0BGdycElkAzYyNzYzODcEZ3Jwc3BJZAMxNzA2NTU0MjA1BHNlYwNmdHIEc2xrA2dmcARzd= GltZQMxMjQ2OTc1MDc3"> <img src=3D"http://us.i1.yimg.com/us.yimg.com/i/yg/img/logo/ma_grp_16= 0.gif" height=3D"15" width=3D"106" border=3D"0" alt=3D"Yahoo! 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