irclog2html for #elinux on 20041205

00:05.19*** join/#elinux jacques (~jacques@c-67-171-198-193.client.comcast.net)
01:20.27*** join/#elinux T0mW (tom@24.152.249.134.res-cmts.sth.ptd.net)
01:20.37T0mWgadzooks Batman!
01:20.51T0mWprpplague: hey
01:43.17prpplagueT0mW: hey
01:43.22prpplagueT0mW: que paso?
01:43.43T0mWprpplague: you've been having so much fun, you overlooked that jflash source
01:44.04prpplagueT0mW: oh shit
01:44.07T0mWprpplague: it's ok
01:44.08prpplagueT0mW: sorry dude
01:44.19T0mWprpplague: I've been working at the LCD interface
01:44.19prpplagueT0mW: it will be monday before i can get it
01:45.00T0mWprpplague: np, I've also got an ISA card to hook up to this thing.  I need to get the 9bit Quad uarts working
01:45.13T0mWprpplague: so, I've got lots to keep me busy
01:45.27prpplagueT0mW: we got something weird going on on the board
01:45.37prpplagueT0mW: we are gonna hook up the scope on it monday
01:45.38T0mWprpplague: plus, printing out PDFs
01:45.54prpplagueT0mW: do a complete verify on the address and data bus
01:45.57T0mWprpplague: still with that flash problem?
01:47.05prpplagueT0mW: yea
01:47.15prpplagueT0mW:  my gut feeling is that there is something wrong
01:47.24prpplagueT0mW: but i've not be able to pin it down
01:47.44T0mWprpplague: may I make a suggestion?
01:47.56prpplagueT0mW: of course
01:48.19T0mWget the gerber files from drafting, then get a copy of GCPrevue, it is a windoze app + free download.
01:48.48T0mWprpplague: you can then follow traces easier that way by using the gerber files
01:49.39T0mWYou want the whole package of gerbers: drill file, aperature list + layers
01:50.10T0mWGCPrevue is what I use to check a board before I sent it out to have it made.  They build the PCBs from the Gerber data
01:50.32prpplagueT0mW: 1) linux only shop
01:50.39T0mWvmware
01:50.50prpplagueT0mW: 2) i have all the ppl that are on the dev team with docs
01:51.05prpplagueT0mW: so basically we are doing a complete hardware review monday
01:51.10T0mWGCPrevue is free download, is very effective, is supported and only runs on windoze
01:51.52T0mWIIRC, it runs under Win98 or Win2k just fine
01:52.50T0mWbesides, if you can read gerbers, then you are only a step or two from knowing how to do your own PCBs.
01:53.43T0mWprpplague: another trick
01:54.43T0mWprpplague: take a bare board outside in the sunlight and hold it up so that you can see the reflection of the solder within the feed thru holes.  We had a bastch of boards some in where they "forgot" to plate the holes.
01:55.02T0mWs/bsatch/batch/
01:55.55cdm-ibookI have seen boards not have entire signal layers too.
01:56.01T0mWheh
01:56.08T0mWnot good either!
01:57.02T0mWAlso seen them where one of the internal copper layers was shifted a "few" thousanths, thus shorting the heck out of a lot of signals.
01:59.30prpplagueT0mW: ahh
01:59.47prpplagueT0mW: well these guys are not newbies to pcb design
01:59.58T0mWnod
01:59.59prpplagueT0mW: i just made them aware of the issues friday
02:00.12prpplagueT0mW: so i suspect something will be identified soon
02:00.25T0mW"heads will roll!"
02:00.50T0mWprpplague: this is a BGA board?
02:01.27prpplagueT0mW: no, fpga
02:01.39prpplagueT0mW: sorry too much beer
02:01.49prpplagueT0mW: lqfp
02:01.57T0mWI meant, is there a BGA device on the board (Ball Grid Array)?
02:02.03prpplagueT0mW: no
02:02.33T0mWok, then it didn't cost all that much to fabricate & populate some test boards.
02:03.31T0mWok, enjoy your beer
02:03.38prpplagueone sec
02:06.33T0mWheh, "DC Core Supply Active Current ---- TBD"
02:06.50T0mWnow that's what I call a spec
02:08.11T0mWabout the only thing that has been determined is that the Card Engine runs on 3.3V & 1.8V over a 10% range
02:11.17chouimathi T0mW prpplague
02:12.29T0mWgood evening
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