RE: Startup of MPC5500 (MPC5566)
"Dobbin Allan" <[email protected]> Tue, 30 Dec 2008 13:48:00 -0700
| Newsgroups | gmane.comp.hardware.motorola.microcontrollers |
|---|---|
| Message-ID | <4147ED8B92A864498825C07E53594E4A03F3E2C2@az33exm20.fsl.freescale.net> |
--06gkusKPjgSCT4k2yX-4AQZmoRNWMqf1sPnWJ-G Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit I'm not sure what could be causing this, some questions and comments below, maybe you have already solved it since you posted this. - which debugger are you using? - is it possible the debugger init script is doing something significant? Try removing as much as possible and see if it still runs. - could it be an SRAM ECC error i.e. related to above, is the debugger initializing the SRAM? One test for this is to try running without the debugger after first running with the debugger but without a power cycle. Or an easier way is just to try removing the SRAM init from the debuggr init script. - could it be a power up issue? Try a reset after power has stabilised without th debugger. - most wigglers connect to the 3.3V line. Look at the 3.3V with and without the wiggler connected to see if there is any significant change. - you could try using the free GAP debugger from Freescale. Its a simple tool but is good because its simple i.e. its easier to determine exactly what the debugger is doing. - what happens without the debugger? Can you confirm the clkout is at correct frequency? I recollect that the watchdog should also be firing a reset periodically i.e. possible every 20 seconds or so. - Allan ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of stevenaschroeder Sent: Monday, December 22, 2008 2:40 PM To: [email protected] Subject: [MPC500] Startup of MPC5500 (MPC5566) I'm just bringing up our first MPC5566 board. Everything is fine with a debugger. I watch the BAM find the RCHW, jumps to my code, and runs fine. (I just have a loop wiggling a GPIO--geesh.) Without the debugger, however, I get nothing. Can someone point me in the right direction--what I am missing? Thanks, Steve [Non-text portions of this message have been removed] --06gkusKPjgSCT4k2yX-4AQZmoRNWMqf1sPnWJ-G Content-Type: text/html; charset=US-ASCII Content-Transfer-Encoding: 7bit <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> </head> <body style="background-color: #ffffff;"> <!--~-|**|PrettyHtmlStartT|**|-~--> <div id="ygrp-mlmsg" style="width:655px; position:relative;"> <div id="ygrp-msg" style="width: 470px; margin:0; padding:0 25px 0 0; float:left; z-index:1;"> <!--~-|**|PrettyHtmlEndT|**|-~--> <div id="ygrp-text"> <p>I'm not sure what could be causing this, some questions and comments<br> below, maybe you have already solved it since you posted this.<br> <br> - which debugger are you using?<br> <br> - is it possible the debugger init script is doing something<br> significant? Try removing as much as possible and see if it still runs.<br> <br> - could it be an SRAM ECC error i.e. related to above, is the debugger<br> initializing the SRAM? One test for this is to try running without the<br> debugger after first running with the debugger but without a power<br> cycle. Or an easier way is just to try removing the SRAM init from the<br> debuggr init script.<br> <br> - could it be a power up issue? Try a reset after power has stabilised<br> without th debugger.<br> <br> - most wigglers connect to the 3.3V line. Look at the 3.3V with and<br> without the wiggler connected to see if there is any significant change.<br> <br> - you could try using the free GAP debugger from Freescale. Its a<br> simple tool but is good because its simple i.e. its easier to determine<br> exactly what the debugger is doing.<br> <br> - what happens without the debugger? Can you confirm the clkout is at<br> correct frequency? I recollect that the watchdog should also be firing<br> a reset periodically i.e. possible every 20 seconds or so.<br> <br> - Allan<br> <br> <br> <br> <br> ____________<wbr>_________<wbr>_________<wbr>__<br> <br> From: <a href="mailto:MPC500%40yahoogroups.com">MPC500@yahoogroups.<wbr>com</a> [mailto:<a href="mailto:MPC500%40yahoogroups.com">MPC500@yahoogroups.<wbr>com</a>] On Behalf<br> Of stevenaschroeder<br> Sent: Monday, December 22, 2008 2:40 PM<br> To: <a href="mailto:MPC500%40yahoogroups.com">MPC500@yahoogroups.<wbr>com</a><br> Subject: [MPC500] Startup of MPC5500 (MPC5566)<br> <br> I'm just bringing up our first MPC5566 board. Everything is fine with <br> a debugger. I watch the BAM find the RCHW, jumps to my code, and runs <br> fine. (I just have a loop wiggling a GPIO--geesh.<wbr>) Without the <br> debugger, however, I get nothing.<br> <br> Can someone point me in the right direction--what I am missing?<br> <br> Thanks,<br> Steve<br> <br> [Non-text portions of this message have been removed]<br> <br> </p> </div> <!--~-|**|PrettyHtmlStart|**|-~--> <span width="1" style="color: white;">__._,_.___</span> <!-- Start the section with Message In topic --> <div id="ygrp-actbar"> <span class="left"> <a href="http://groups.yahoo.com/group/MPC500/message/3962;_ylc=X3oDMTM0NDIxcmR0BF9TAzk3MzU5NzE0BGdycElkAzYyNzYzODcEZ3Jwc3BJZAMxNzA2NTU0MjA1BG1zZ0lkAzM5NjYEc2VjA2Z0cgRzbGsDdnRwYwRzdGltZQMxMjMwNjcwMDk2BHRwY0lkAzM5NjI-"> Messages in this topic </a> (<span class="bld">2</span>) </span> <a href="http://groups.yahoo.com/group/MPC500/post;_ylc=X3oDMTJwcmhnazJmBF9TAzk3MzU5NzE0BGdycElkAzYyNzYzODcEZ3Jwc3BJZAMxNzA2NTU0MjA1BG1zZ0lkAzM5NjYEc2VjA2Z0cgRzbGsDcnBseQRzdGltZQMxMjMwNjcwMDk2?act=reply&messageNum=3966"> <span class="bld"> Reply </span> (via web post) </a> | <a href="http://groups.yahoo.com/group/MPC500/post;_ylc=X3oDMTJlZmlvY2plBF9TAzk3MzU5NzE0BGdycElkAzYyNzYzODcEZ3Jwc3BJZAMxNzA2NTU0MjA1BHNlYwNmdHIEc2xrA250cGMEc3RpbWUDMTIzMDY3MDA5Ng--" class="bld"> Start a new topic </a> </div> <!------- Start Nav Bar ------> <!-- |**|begin egp html banner|**| --> <div id="ygrp-vitnav"> <a href="http://groups.yahoo.com/group/MPC500/messages;_ylc=X3oDMTJlZmtoZGQ0BF9TAzk3MzU5NzE0BGdycElkAzYyNzYzODcEZ3Jwc3BJZAMxNzA2NTU0MjA1BHNlYwNmdHIEc2xrA21zZ3MEc3RpbWUDMTIzMDY3MDA5Ng--">Messages</a> | <a href="http://groups.yahoo.com/group/MPC500/links;_ylc=X3oDMTJmNTBmbm9vBF9TAzk3MzU5NzE0BGdycElkAzYyNzYzODcEZ3Jwc3BJZAMxNzA2NTU0MjA1BHNlYwNmdHIEc2xrA2xpbmtzBHN0aW1lAzEyMzA2NzAwOTY-">Links</a> </div> <!-- |**|end egp html banner|**| --> <div id="ygrp-grft"> </div> <div id="ygrp-mkp"> <div id="hd">MARKETPLACE</div> <div id="ads"> <div class="ad"> <hr noshade="noshade" size="1"><a href="http://us.ard.yahoo.com/SIG=13rq179j3/M=493064.12016295.13271503.10835568/D=groups/S=1706554205:MKP1/Y=YAHOO/EXP=1230677296/L=/B=ZTMGY0LaX9U-/J=1230670096637694/A=5530388/R=0/SIG=11nuutlas/*http://explore.yahoo.com/groups/kraftmealsmadesimple/">From kitchen basics to easy recipes - join the Group from Kraft Foods </a> </div> </div> </div> <!-- yahoo logo --> <!-- |**|begin egp html banner|**| --> <div id="ygrp-ft"> <a href="http://groups.yahoo.com/;_ylc=X3oDMTJkdHJzcjY4BF9TAzk3MzU5NzE0BGdycElkAzYyNzYzODcEZ3Jwc3BJZAMxNzA2NTU0MjA1BHNlYwNmdHIEc2xrA2dmcARzdGltZQMxMjMwNjcwMDk2"> <img src="http://us.i1.yimg.com/us.yimg.com/i/yg/img/logo/ma_grp_160.gif" height="15" width="106" border="0" alt="Yahoo! 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