**** BEGIN LOGGING AT Wed Sep 03 02:59:57 2008 Sep 03 17:36:23 drath: ping Sep 03 17:36:29 drath: give me a shout when you can Sep 03 18:26:37 hey prpplague Sep 03 18:28:16 drath: 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? Sep 03 18:35:13 yeah, would be great - can you disclose any details already? Sep 03 18:39:53 yea, let me message you Sep 03 18:47:42 drath: check your /msg when you have time Sep 03 21:38:54 prpplague: you told me there are a lot of sch available with S3C2440, you know where I could find some ? Sep 03 21:39:22 key2: littlechips.com and the smdk2440 boards are both available for schematics Sep 03 21:39:38 thx Sep 03 21:40:10 iirc the embest boards are available as well - http://www.armkits.com/Product/sbc2440-II.asp Sep 03 21:40:20 key2: doing a 2440 design? Sep 03 21:40:53 yeah Sep 03 21:41:10 you done bga work before? Sep 03 21:44:19 prpplague: well am not gonna solder it myself Sep 03 21:44:32 key2: i mean the pcb layout Sep 03 21:44:44 mmh Sep 03 21:44:53 not much, but achiestdragon is helping Sep 03 21:44:55 prpplague: why ? Sep 03 21:45:16 the layout on the s3c2440 is very tight and does require impedence matching Sep 03 21:45:28 key2: mind if i ask what you guys are working on? Sep 03 21:45:41 key2: i might be able to help with some info Sep 03 21:45:55 prpplague: doing an IP phone Sep 03 21:46:05 prpplague: the shit is that they put all the data line in the middle of the chip Sep 03 21:46:10 instead of gnd/vcc Sep 03 21:46:57 key2: going to do all of the processor/flash/memory one board , or do a module just for the cpu section? Sep 03 21:47:13 prpplague: am thinking about one board Sep 03 21:47:18 would be cheaper Sep 03 21:47:58 cheaper for production, but i can tell you from experience, prototype/early revs are going to eat your lunch Sep 03 21:48:23 key2: have you done a proof-of-concept yet? Sep 03 21:48:34 prpplague: is it possible to route it on 4 layers ? Sep 03 21:48:37 prpplague: you've done it ? Sep 03 21:49:05 prpplague: i tried with one of those: http://cgi.ebay.com/Samsung-S3C2440-ARM9-Board-7-TFT-LCD-w-Touch-Panel_W0QQitemZ120300548725QQihZ002QQcategoryZ55824QQssPageNameZWDVWQQrdZ1QQcmdZViewItem Sep 03 21:49:07 key2: not on 4, 6 will be hard, 8 is more likely the middle ground Sep 03 21:50:05 key2: yea that is a decent board, but it has everything wired up so to speak Sep 03 21:50:33 prpplague: the thing is that the dude that made this one made it on 4 layers !!! Sep 03 21:50:57 yea fairly big board too Sep 03 21:51:06 well I have 150x100 Sep 03 21:51:17 i assume thats mm Sep 03 21:51:30 yeah Sep 03 21:51:31 ;) Sep 03 21:51:44 that pretty darn big Sep 03 21:51:52 this is suppose to be a handheld device? Sep 03 21:51:52 its for a touchscreen phone Sep 03 21:51:53 :) Sep 03 21:52:01 desktop ip phone Sep 03 21:52:02 ;) Sep 03 21:52:10 not a cellphone Sep 03 21:52:21 ahh not cellphone type Sep 03 21:52:29 noo Sep 03 21:52:33 a desktop IP phone Sep 03 21:52:45 what kind of Z space have you got ? Sep 03 21:52:54 hat u call Z space ? Sep 03 21:53:02 s/hat/what Sep 03 21:53:16 height Sep 03 21:53:26 above the pcb Sep 03 21:53:59 well the PCB will be right under the touchscreen, and both will be let say at 45deg from the table Sep 03 21:54:12 ahh Sep 03 21:54:28 you have something that is 150mm and 45deg :) Sep 03 21:55:04 http://88.191.12.21/phone/IMG_0064.jpg Sep 03 21:55:46 key2: 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 Sep 03 21:55:51 * prpplague looks Sep 03 21:55:53 prpplague http://88.191.12.21/phone/IMG_0053.jpg Sep 03 21:56:17 dandy looking device Sep 03 21:56:22 gui is really nice Sep 03 21:56:48 prpplague: it's using the Winamp rendering engine Sep 03 21:56:57 the guy that did winamp is helping... Sep 03 21:57:01 that neat, i'm more of kernel person soooo Sep 03 21:57:09 yeah same here Sep 03 21:57:29 key2: http://www.armkits.com/Product/SBC2440-III.asp Sep 03 21:57:39 key2: the same folks that you got your kit from Sep 03 21:57:47 key2: but the cpu section is on a module Sep 03 21:58:09 key2: you should really think about using that for the first few revs of the design Sep 03 21:58:14 prpplague: http://www.yctek.com/news/view_49.html Sep 03 21:58:16 you mean this ? Sep 03 21:59:08 i can;t read that, but it looks the same Sep 03 21:59:58 yctek is the company that makes it Sep 03 21:59:59 yeah Sep 03 22:00:48 prpplague: is it MII or RMII ? Sep 03 22:00:51 for the PHY Sep 03 22:01:42 sorry don't know the specs that well Sep 03 22:01:50 k Sep 03 22:01:52 for those boards Sep 03 22:01:57 we generally do our own Sep 03 22:02:18 the s3c2440 doenst have a MAC core ? Sep 03 22:02:23 http://www.elinux.org/M8050 Sep 03 22:02:26 key2: no Sep 03 22:02:35 key2: no mac or phy Sep 03 22:02:47 its your design ? Sep 03 22:02:57 yea Sep 03 22:03:01 s3c2440 based Sep 03 22:03:01 wow Sep 03 22:03:05 not bad :) Sep 03 22:03:27 prpplague: its a phone ? Sep 03 22:03:34 industrial pda Sep 03 22:04:09 k Sep 03 22:04:18 and you used one of those module for prototyping ? ;) Sep 03 22:04:45 we designed our own module to assist in prototyping different devices Sep 03 22:05:08 http://www.elinux.org/JackHammer_Board Sep 03 22:05:28 not very good pics, and they don't give you an idea of the size Sep 03 22:05:54 they are 50x64mm Sep 03 22:08:36 key2: currently we have 4 devices based on the s3c2440, and another 4 or 5 in the works Sep 03 22:09:51 you dont sell those proto board Sep 03 22:09:53 do u ? ;) Sep 03 22:10:38 not currently Sep 03 22:10:59 there was some discussion about selling them, but i'm not sure where that is at the momment Sep 03 22:11:37 k Sep 03 22:11:46 we have a number of s3c2410 boards that are available, but none of the s3c2440 items Sep 03 22:12:03 if you want to check with me tomorrow, i'll see if can ask management about them Sep 03 22:12:07 well S3C2440 is more worth than 2410 Sep 03 22:12:19 about S3C2440 ? Sep 03 22:12:50 yea, i'll ask about the s3c2440 boards Sep 03 22:12:53 aka M8010 Sep 03 22:12:56 k Sep 03 22:12:59 that would be cool Sep 03 22:19:24 http://youtiyou.com/S3C2440.aspx Sep 03 22:19:28 same here I think Sep 03 22:20:02 http://youtiyou.com/Documents/core2440.pdf Sep 03 22:21:02 yea pretty close Sep 03 22:21:10 we are using 80 pin connectors Sep 03 22:21:16 looks like they are using 84 pin Sep 03 22:22:11 * prpplague heads home for the day **** ENDING LOGGING AT Thu Sep 04 02:59:57 2008