From: Dan B. <da...@la...> - 2006-08-23 15:17:36
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How much of a difference is there in the buildroot when you change speeds? I have a Connex 400XM and just ordered a new Connex 200XM and want to know if I need to rebuild the entire buildroot (and maintain two different copies, or if I just need to use a different U-Boot on each stick, and can keep the rest of the systems the same. Processor init &config is done by u-boot isn't it? Thanks! Dan |
From: Craig H. <cr...@gu...> - 2006-08-23 16:06:55
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U-boot changes in one byte. Everything else is identical. C On Aug 23, 2006, at 8:17 AM, Dan Brown wrote: > How much of a difference is there in the buildroot when you change > speeds? > > I have a Connex 400XM and just ordered a new Connex 200XM and want > to know if I need to rebuild the entire buildroot (and maintain two > different copies, or if I just need to use a different U-Boot on > each stick, and can keep the rest of the systems the same. > > Processor init &config is done by u-boot isn't it? > > Thanks! > > Dan > ---------------------------------------------------------------------- > --- > Using Tomcat but need to do more? Need to support web services, > security? > Get stuff done quickly with pre-integrated technology to make your > job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache > Geronimo > http://sel.as-us.falkag.net/sel? > cmd=lnk&kid=120709&bid=263057&dat=121642______________________________ > _________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Alexandre P. N. <al...@om...> - 2006-08-23 16:11:48
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Dan Brown escreveu: > How much of a difference is there in the buildroot when you change speeds? > > I have a Connex 400XM and just ordered a new Connex 200XM and want to > know if I need to rebuild the entire buildroot (and maintain two > different copies, or if I just need to use a different U-Boot on each > stick, and can keep the rest of the systems the same. > > Processor init &config is done by u-boot isn't it? > > Thanks! > > Dan That's correct, AFAIK the only difference is u-boot setting a clock multiplier parameter. The rest of the buildroot itself is unchanged. The funny thing is that both 200 and 400 mhz processors are identical about the clock multiplier limits, some people even suspect they're the same processor, only that the 400mhz would have passed stricter quality control tests. So if you flash a 400mhz with a 200mhz-tuned uboot, it'll work (slower) just fine. The reverse is not exactly safe, but it worked when I did it by mistake. - Alexandre |