**** BEGIN LOGGING AT Wed Oct 12 02:59:56 2005
Oct 12 04:27:57 <[g2-nta]> morning ep1220 
Oct 12 04:28:19 <[g2-nta]> lennert where did vmaster_ post the proposal I missed that 
Oct 12 04:28:34 <ep1220> morning [g2-nta]
Oct 12 04:28:41 <lennert> [g2-nta]: he sent a link a while ago
Oct 12 04:28:45 <[g2-nta]> ep1220 how goes ?
Oct 12 04:28:47 <lennert> [g2-nta]: he said it in here
Oct 12 04:29:10 <[g2-nta]> I'm sorry I missed that in the logs
Oct 12 04:29:40 <lennert> http://mmd.ath.cx/epp_jtag/ ?
Oct 12 04:29:50 <lennert> not sure
Oct 12 04:29:55 <lennert> no, that wasn't it
Oct 12 04:30:02 <[g2-nta]> checking thx
Oct 12 04:34:10 <ep1220> [g2-nta]: I am fine, Thx. Looking up some parts at the moment
Oct 12 04:35:17 <[g2-nta]> ep1220 cool.. How's your little board ?
Oct 12 04:37:46 <ep1220> PCB being manufactured
Oct 12 04:39:05 <vmaster> [g2-nta]: if by "proposal" you mean the current api of my jtag interface, it's at openocd.berlios.de/web/
Oct 12 04:39:06 <[g2-nta]> awesome
Oct 12 04:39:14 <[g2-nta]> vmaster thx
Oct 12 04:39:34 <vmaster> i got the first assembled board of the ft2232c interface my professor designed
Oct 12 04:41:35 <vmaster> http://www.fh-augsburg.de/~hhoegl/proj/volksmikro/usb-jtag/050910/
Oct 12 04:41:44 <vmaster> there are two pictures, showing top and bottom of the pcb
Oct 12 04:52:46 <[g2-nta]> vmaster boards look nice
Oct 12 05:41:39 <ka6sox> ep1220, ping?
Oct 12 05:41:52 <ep1220> ka6sox: pong
Oct 12 05:43:31 <ka6sox> howdy there...back from the Bayou
Oct 12 05:43:38 <ep1220> ka6sox: Mission completed ?
Oct 12 05:44:11 <ka6sox> yes..it was good :)
Oct 12 05:44:21 <ep1220> Great
Oct 12 05:44:22 <ep1220> Did you receive my email last thusday/friday ?
Oct 12 05:44:59 <ka6sox> email was spotty there...and a great deal was going on..lemme look again.
Oct 12 05:45:43 <[g2-nta]> vmaster what produces those pdfs ?
Oct 12 05:47:42 <ka6sox> ep1220, I got the last one about the BOM and I think that I replied.
Oct 12 05:48:02 <ka6sox> (at least that is what it looks like from the log :)
Oct 12 05:48:09 <ep1220> there was one more
Oct 12 05:49:45 <ep1220> At 5 work day service PCBs would have cost over 40EUR a piece
Oct 12 05:49:54 <ep1220> so i chose a 12day service
Oct 12 05:50:02 <ka6sox> good plan!
Oct 12 05:50:31 <ep1220> Still tinkering with the adaptors
Oct 12 05:50:45 <ep1220> Do You have connections to 3M ?
Oct 12 05:51:13 <ka6sox> I have called them and talked before.
Oct 12 05:51:34 <ka6sox> anything specific?
Oct 12 05:51:40 <ep1220> Coudl you check min Quantity and price of  3M Type 5120-B7A2
Oct 12 05:51:51 <ep1220> here they insist I buy 500 :-(
Oct 12 05:53:33 <ka6sox> not familiar with that number....do you have a description?
Oct 12 05:55:13 <ep1220> It is a Polarzed Boardmount Socket
Oct 12 05:55:18 <ep1220> 20 pins, right angle
Oct 12 05:55:52 <ep1220> directly plgs into socket headers (like ribbon cable socket, just for PCB mount)
Oct 12 05:56:04 <ep1220> the 3M Datasheet is TS-0414
Oct 12 05:56:44 <ka6sox> oh...digikey has things like that but not maybe in 3M...Sullins has them.
Oct 12 05:57:32 <ka6sox> (sullins parts)
Oct 12 05:57:47 <ep1220> Did not know Sullins, I check 
Oct 12 06:00:45 <ka6sox> mornin prpplague 
Oct 12 06:01:06 <ep1220> At http://www.segger.de/jlink_adapters.html You see what I envision (just without the electronics)
Oct 12 06:01:28 <ep1220> ka6sox: the upper picture
Oct 12 06:02:36 <ka6sox> okay so you want hooded ones...that is a good plan
Oct 12 06:02:41 <ka6sox> Sullins has those :)
Oct 12 06:02:48 <[g2-nta]> OH... that's the adapter is SO need
Oct 12 06:04:35 <ka6sox> ep1220, digikey PN MHB20K-ND
Oct 12 06:05:28 <ep1220> ka6sox: these are headers - I want the female version
Oct 12 06:06:10 <ep1220> Like on the right side of the 2 segger pics
Oct 12 06:06:49 <prpplague> ka6sox: howdy
Oct 12 06:07:50 <ka6sox> ep1220, give me a minute and I'll have them :)
Oct 12 06:08:11 <ka6sox> prpplague, I got within about 800miles of you recently
Oct 12 06:09:46 <prpplague> ka6sox: oh?
Oct 12 06:12:52 <ep1220> ka6sox: Datasheet of the 3m part http://de.geocities.com/at2cn/TS-0414.pdf
Oct 12 06:14:25 <ep1220> [g2-nta]: I believe that adaptor will short Your serial pins.
Oct 12 06:14:46 <[g2-nta]> ep1220 nod
Oct 12 06:17:04 <ka6sox> prpplague, went to New Orleans
Oct 12 06:17:18 <ka6sox> ep1220, thats a fine connector but very expensive :)
Oct 12 06:17:43 <ka6sox> looking for a sub that is easier to find :)
Oct 12 06:18:02 <prpplague> ka6sox: hehe, thats not very close, hehe, i thought you might have been in the carib or something, hehe
Oct 12 06:19:15 <ep1220> ka6sox: approx 5USD a piece
Oct 12 06:19:30 <prpplague> brb
Oct 12 06:19:30 <ep1220> ka6sox: I tried to find a cheaper one, but was not sucessfull.
Oct 12 06:20:57 <ep1220> Assmann and Sullins have similar ones, (the Assmann is ~2USD).
Oct 12 06:22:18 <ep1220> But these are not fully housed and there are also mechnical issues
Oct 12 06:23:05 <ka6sox> ep1220, let me poke around when I get to the lab...I have a number of catalogs there.
Oct 12 06:23:19 <ep1220> k.
Oct 12 06:24:32 <ep1220> Actually I'd like to discuss some alternatives to this design;
Oct 12 06:24:38 <ka6sox> I'm sure that we can find them somewhere without having to buy 500.
Oct 12 06:24:50 <ka6sox> ep1220, shoot.
Oct 12 06:25:28 <ep1220> i see 2 other designs.
Oct 12 06:26:16 <ep1220> 1) a PCB adaptor which goes directly into the target header
Oct 12 06:26:34 <ep1220> as You already noted: with this there might be clearance issues
Oct 12 06:27:10 <ep1220> Could use the Assmann 14 pin,Right Angle and a 20 pin Right angel header to the ribbon cable
Oct 12 06:27:54 <ep1220> 2) use something similar to the lower pic on the segger site. but use a male vertical 20pin header.
Oct 12 06:28:20 <ka6sox> I favour using 2)
Oct 12 06:28:35 <ep1220> so would have ribbon cable JTag-probe to this adapter, plus a ribbon cable to the target
Oct 12 06:28:50 <ep1220> maybe not ideal for higher frequencies
Oct 12 06:29:01 <ka6sox> male on main PCB to Female on adapter(both 20 pin)
Oct 12 06:29:21 <ka6sox> then male X pin (vertical) to ribbons with females.
Oct 12 06:30:11 <ep1220> but this needs the expensive connectors
Oct 12 06:30:34 <ka6sox> while not Ideal for higher frequencies (<20mhz) it would work fine if we keep the leads short (<10CM)
Oct 12 06:31:11 <ka6sox> wb billybob
Oct 12 06:32:06 <ep1220> I would also prefer to use a wire-to-board for the lower-pin count connection.
Oct 12 06:32:10 <vmaster> the ftdi doesn't go beyond 6mhz anyway?
Oct 12 06:32:17 <ka6sox> ya.
Oct 12 06:32:23 <ka6sox> so we don't have a problem
Oct 12 06:32:39 <ka6sox> okay so in this case we can directly plug the adapter into the main board
Oct 12 06:32:50 <ka6sox> and lower the capacitance that way.
Oct 12 06:32:50 <ep1220> vmaster: yes, but this adaptor might be usefull for other JTAG probes as well.
Oct 12 06:33:16 <ka6sox> the FTDI is the first design
Oct 12 06:33:32 <ka6sox> eventually I see FPGA designs that go much faster.
Oct 12 06:34:11 <ep1220> ka6sox: how about You check avaiability of the 3M part in the US ?
Oct 12 06:34:45 <ka6sox> I'll call my distributers when they are awake (its 6:33am here)
Oct 12 06:35:45 <ep1220> the same PCB foot-print can be used for any combination of straight/right-angle + shrouded/non-shrouded headers anyway
Oct 12 06:36:32 <ka6sox> Good Plan
Oct 12 06:36:52 <ep1220> only critical: PCB clearance when we want to plug directly into another PCB (be it JTAG probe or target ..)
Oct 12 06:40:23 <ka6sox> digikey 54433-nd
Oct 12 06:40:36 <ka6sox> Sullins
Oct 12 06:41:24 <ep1220> at Digikey search for 54433-nd gives 0 items (?)
Oct 12 06:41:57 <ka6sox> S4433-ND
Oct 12 06:44:53 <ka6sox> (and others that are the right # of pins.
Oct 12 07:12:31 <ka6sox> okay I must get kidlet going here...back in a bit.
Oct 12 08:15:27 <ka6sox> lennert, where is pong? (just asking no pressure or anything ;)
Oct 12 08:16:01 <lennert> ooh
Oct 12 08:16:01 <lennert> sorry
Oct 12 08:16:06 <lennert> i sent it to dyoung-away but not to you
Oct 12 08:16:12 <ka6sox> doh!
Oct 12 08:16:21 <ka6sox> *chuckle*
Oct 12 08:16:29 <lennert> email?
Oct 12 08:16:47 <ka6sox> @gmail.com
Oct 12 08:16:58 <lennert> got it
Oct 12 08:17:33 <lennert> sent
Oct 12 08:17:35 <lennert> it's really vile
Oct 12 08:17:53 <ka6sox> then it should be fun to add/modify/play with :)
Oct 12 08:18:01 <lennert> oh yes
**** ENDING LOGGING AT Thu Oct 13 02:59:56 2005