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Groups > comp.arch.embedded > #13189
| From | rickman <gnuarm@gmail.com> |
|---|---|
| Newsgroups | comp.arch.embedded |
| Subject | Re: Routing signals under crystals |
| Date | 2013-08-25 16:20 -0400 |
| Organization | A noiseless patient Spider |
| Message-ID | <kvdove$5v5$1@dont-email.me> (permalink) |
| References | (1 earlier) <a9zRt.4989$nK2.4144@en-nntp-11.dc1.easynews.com> <MJOdnfun7ehFjIrPnZ2dnUVZ7oKdnZ2d@bt.com> <MPG.2c81200ab1cde9329896ba@news.eternal-september.org> <kvame9$tg8$1@dont-email.me> <87a9k6wlmn.fsf@digitalsignallabs.com> |
On 8/24/2013 10:27 PM, Randy Yates wrote: > rickman<gnuarm@gmail.com> writes: > >> On 8/24/2013 1:16 AM, Mark Borgerson wrote: >>> >>> I agree with that. It's probably even less of a problem when the >>> fastest clock on the board is in the internal processor of the >>> SD card logging the data. Writing to an SD card can generate quite >>> a burst of EMI, but I haven't seen large effects on crystal behavior. >> >> Really? I've never seen significant EMI directly generated by any >> chip. > > How do you know where it's coming from? Do you have screen rooms, > antennae, spectrum analyzers, etc., like FCC testing centers do? Lol, if you have EMI, you fix the board and it goes away, that shows it wasn't the chip... Same with the SD card. Replace the SD card with a different brand and the EMI should change or go away. -- Rick
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Routing signals under crystals Luis Filipe Rossi <luisf.rossi@gmail.com> - 2013-08-22 10:33 -0700
Re: Routing signals under crystals Tim Wescott <tim@seemywebsite.really> - 2013-08-22 16:25 -0500
Re: Routing signals under crystals upsidedown@downunder.com - 2013-08-23 09:35 +0300
Re: Routing signals under crystals Tim Wescott <tim@seemywebsite.really> - 2013-08-23 12:43 -0500
Re: Routing signals under crystals Richard Damon <Richard@Damon-Family.org> - 2013-08-22 21:45 -0400
Re: Routing signals under crystals MK <mk@nospam.co.uk> - 2013-08-23 08:40 +0100
Re: Routing signals under crystals Mike Perkins <spam@spam.com> - 2013-08-23 11:05 +0100
Re: Routing signals under crystals Luis Filipe Rossi <luisf.rossi@gmail.com> - 2013-08-23 04:55 -0700
Re: Routing signals under crystals rickman <gnuarm@gmail.com> - 2013-08-23 16:10 -0400
Re: Routing signals under crystals Clifford Heath <no.spam@please.net> - 2013-08-24 09:55 +1000
Re: Routing signals under crystals rickman <gnuarm@gmail.com> - 2013-08-23 20:23 -0400
Re: Routing signals under crystals Tom Gardner <spamjunk@blueyonder.co.uk> - 2013-08-24 09:41 +0100
Re: Routing signals under crystals rickman <gnuarm@gmail.com> - 2013-08-24 12:10 -0400
Re: Routing signals under crystals Tom Gardner <spamjunk@blueyonder.co.uk> - 2013-08-24 17:21 +0100
Re: Routing signals under crystals rickman <gnuarm@gmail.com> - 2013-08-24 12:53 -0400
Re: Routing signals under crystals Clifford Heath <no.spam@please.net> - 2013-08-24 23:11 +1000
Re: Routing signals under crystals Don Y <this@isnotme.com> - 2013-08-23 19:43 -0700
Re: Routing signals under crystals Richard Damon <Richard@Damon-Family.org> - 2013-08-24 00:34 -0400
Re: Routing signals under crystals Mark Borgerson <mborgerson@comcast.net> - 2013-08-23 22:16 -0700
Re: Routing signals under crystals rickman <gnuarm@gmail.com> - 2013-08-24 12:19 -0400
Re: Routing signals under crystals Mark Borgerson <mborgerson@comcast.net> - 2013-08-24 09:59 -0700
Re: Routing signals under crystals Randy Yates <yates@digitalsignallabs.com> - 2013-08-24 22:27 -0400
Re: Routing signals under crystals rickman <gnuarm@gmail.com> - 2013-08-25 16:20 -0400
Re: Routing signals under crystals Randy Yates <yates@digitalsignallabs.com> - 2013-08-25 21:04 -0400
Re: Routing signals under crystals rickman <gnuarm@gmail.com> - 2013-08-27 12:49 -0400
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