IRC log for #openjtag on 20080903

03:42.13*** join/#openjtag jkilb_ (n=jkilb@p5B209ACD.dip0.t-ipconnect.de)
05:14.07*** join/#openjtag pleemans (n=peter@dD577D009.access.telenet.be)
06:00.55*** join/#openjtag drath (i=vmaster@p5B07DE94.dip.t-dialin.net)
12:54.28*** join/#openjtag prpplague (n=dave@mail.americanmicrosystems.com)
17:36.23prpplaguedrath: ping
17:36.29prpplaguedrath: give me a shout when you can
18:26.37drathhey prpplague
18:28.15prpplaguedrath: i know you stay pretty busy these days, but we are starting work on a new jtag device for use with openocd, any interest in having us send you and early rev of the unit?
18:35.13drathyeah, would be great - can you disclose any details already?
18:39.53prpplagueyea, let me message you
18:47.42prpplaguedrath: check your /msg when you have time
21:38.54key2prpplague: you told me there are a lot of sch available with S3C2440, you know where I could find some ?
21:39.22prpplaguekey2: littlechips.com and the smdk2440 boards are both available for schematics
21:39.37key2thx
21:40.10prpplagueiirc the embest boards are available as well - http://www.armkits.com/Product/sbc2440-II.asp
21:40.20prpplaguekey2: doing a 2440 design?
21:40.53key2yeah
21:41.10prpplagueyou done bga work before?
21:44.19key2prpplague: well am not gonna solder it myself
21:44.32prpplaguekey2: i mean the pcb layout
21:44.44key2mmh
21:44.52key2not much, but achiestdragon is helping
21:44.55key2prpplague: why ?
21:45.16prpplaguethe layout on the s3c2440 is very tight and does require impedence matching
21:45.28prpplaguekey2: mind if i ask what you guys are working on?
21:45.41prpplaguekey2: i might be able to help with some info
21:45.55key2prpplague: doing an IP phone
21:46.05key2prpplague: the shit is that they put all the data line in the middle of the chip
21:46.09key2instead of gnd/vcc
21:46.56prpplaguekey2: going to do all of the processor/flash/memory one board , or do a module just for the cpu section?
21:47.13key2prpplague: am thinking about one board
21:47.17key2would be cheaper
21:47.57prpplaguecheaper for production, but i can tell you from experience, prototype/early revs are going to eat your lunch
21:48.23prpplaguekey2: have you done a proof-of-concept yet?
21:48.33key2prpplague: is it possible to route it on 4 layers ?
21:48.37key2prpplague: you've done it ?
21:49.04key2prpplague: i tried with one of those: http://cgi.ebay.com/Samsung-S3C2440-ARM9-Board-7-TFT-LCD-w-Touch-Panel_W0QQitemZ120300548725QQihZ002QQcategoryZ55824QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
21:49.07prpplaguekey2: not on 4, 6 will be hard, 8 is more likely the middle ground
21:50.05prpplaguekey2: yea that is a decent board, but it has everything wired up so to speak
21:50.32key2prpplague: the thing is that the dude that made this one made it on 4 layers !!!
21:50.56prpplagueyea fairly big board too
21:51.06key2well I have 150x100
21:51.16prpplaguei assume thats mm
21:51.30key2yeah
21:51.31key2;)
21:51.44prpplaguethat pretty darn big
21:51.51prpplaguethis is suppose to be a handheld device?
21:51.52key2its for a touchscreen phone
21:51.53key2:)
21:52.01key2desktop ip phone
21:52.02key2;)
21:52.10key2not a cellphone
21:52.21prpplagueahh not cellphone type
21:52.29key2noo
21:52.32key2a desktop IP phone
21:52.45prpplaguewhat kind of Z space have you got ?
21:52.54key2hat u call Z space ?
21:53.02key2s/hat/what
21:53.16prpplagueheight
21:53.25prpplagueabove the pcb
21:53.59key2well the PCB will be right under the touchscreen, and both will be let say at 45deg from the table
21:54.12prpplagueahh
21:54.28key2you have something that is 150mm and 45deg :)
21:55.03key2http://88.191.12.21/phone/IMG_0064.jpg
21:55.46prpplaguekey2: personal recomendation, take it for you will, if it were mean, i'd find a good s3c2440 cpu board, design the first rev of the board using the module, just leave the area on the pcb where you want to eventually put the cpu/flash/sdram, once you have the i/o completed and working rev the board with the cpu on it
21:55.51prpplaguelooks
21:55.53key2prpplague http://88.191.12.21/phone/IMG_0053.jpg
21:56.16prpplaguedandy looking device
21:56.22prpplaguegui is really nice
21:56.47key2prpplague: it's using the Winamp rendering engine
21:56.57key2the guy that did winamp is helping...
21:57.01prpplaguethat neat, i'm more of kernel person soooo
21:57.09key2yeah same here
21:57.29prpplaguekey2: http://www.armkits.com/Product/SBC2440-III.asp
21:57.39prpplaguekey2: the same folks that you got your kit from
21:57.46prpplaguekey2: but the cpu section is on a module
21:58.08prpplaguekey2: you should really think about using that for the first few revs of the design
21:58.14key2prpplague: http://www.yctek.com/news/view_49.html
21:58.15key2you mean this ?
21:59.07prpplaguei can;t read that, but it looks the same
21:59.58key2yctek is the company that makes it
21:59.58key2yeah
22:00.48key2prpplague: is it MII or RMII ?
22:00.51key2for the PHY
22:01.42prpplaguesorry don't know the specs that well
22:01.50key2k
22:01.51prpplaguefor those boards
22:01.57prpplaguewe generally do our own
22:02.17key2the s3c2440 doenst have a MAC core ?
22:02.23prpplaguehttp://www.elinux.org/M8050
22:02.26prpplaguekey2: no
22:02.35prpplaguekey2: no mac or phy
22:02.47key2its your design ?
22:02.57prpplagueyea
22:03.01prpplagues3c2440 based
22:03.01key2wow
22:03.05key2not bad :)
22:03.27key2prpplague: its a phone ?
22:03.33prpplagueindustrial pda
22:04.08key2k
22:04.18key2and you used one of those module for prototyping ? ;)
22:04.45prpplaguewe designed our own module to assist in prototyping different devices
22:05.08prpplaguehttp://www.elinux.org/JackHammer_Board
22:05.28prpplaguenot very good pics, and they don't give you an idea of the size
22:05.54prpplaguethey are 50x64mm
22:08.36prpplaguekey2: currently we have 4 devices based on the s3c2440, and another 4 or 5 in the works
22:09.51key2you dont sell those proto board
22:09.53key2do u ? ;)
22:10.37prpplaguenot currently
22:10.59prpplaguethere was some discussion about selling them, but i'm not sure where that is at the momment
22:11.37key2k
22:11.46prpplaguewe have a number of s3c2410 boards that are available, but none of the s3c2440 items
22:12.02prpplagueif you want to check with me tomorrow, i'll see if can ask management about them
22:12.06key2well S3C2440 is more worth than 2410
22:12.19key2about S3C2440 ?
22:12.49prpplagueyea, i'll ask about the s3c2440 boards
22:12.53prpplagueaka M8010
22:12.56key2k
22:12.59key2that would be cool
22:19.23key2http://youtiyou.com/S3C2440.aspx
22:19.27key2same here I think
22:20.02key2http://youtiyou.com/Documents/core2440.pdf
22:21.01prpplagueyea pretty close
22:21.10prpplaguewe are using 80 pin connectors
22:21.16prpplaguelooks like they are using 84 pin
22:22.10prpplagueheads home for the day

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