| 02:26.07 | *** join/#openjtag ka6sox (n=ka6sox@nslu2-linux/ka6sox) |
| 02:26.28 | *** join/#openjtag ka6sox-office (n=tking@netblock-66-159-209-52.dslextreme.com) |
| 02:28.37 | *** join/#openjtag nslu2-log (n=nslu2-lo@nslu2-linux/dyoung) |
| 02:33.33 | ka6sox-office | ugh |
| 02:36.08 | AchiestDragon | wb |
| 02:36.29 | ka6sox | ty |
| 02:36.37 | ka6sox | huge blackout. |
| 02:36.47 | AchiestDragon | :S |
| 02:44.14 | AchiestDragon | well finding a 90degree female dual row .1" pcb socket is a nightmare |
| 02:44.36 | *** join/#openjtag nslu2-log (n=nslu2-lo@nslu2-linux/dyoung) |
| 02:46.13 | AchiestDragon | so using a straight type , mounted hoizontal with the board between the pins , each row soldered to each side of the board for the adaptors |
| 02:47.36 | fishhead | http://www.jumpers.computed.net/ |
| 02:48.56 | AchiestDragon | <PROTECTED> |
| 02:49.47 | ka6sox-office | sounds good. |
| 02:49.57 | ka6sox-office | easy to solder on without movement |
| 02:50.24 | AchiestDragon | yes |
| 02:50.47 | ka6sox-office | (flex in the board is minimal) |
| 02:51.36 | fishhead | sorry about the popup folks, apprentely that site is a fake copy of the good site that was a url of jumpers for 1000's of computer parts |
| 02:52.27 | AchiestDragon | fishhead: can you find one with the verious jtag pinouts listed |
| 02:53.06 | fishhead | http://www.osuweb.net/~ahaning/totalhardware99/ <--- here is the right site including a complete zip file torrent! woop! |
| 02:53.15 | fishhead | mabye someday :) |
| 04:51.42 | *** join/#openjtag velinp (n=velinp@c88-163.cable.netissat.bg) |
| 04:53.52 | velinp | ~seen ka6sox-office |
| 04:54.01 | purl | ka6sox-office is currently on #openjtag (2h 27m 33s). Has said a total of 4 messages. Is idling for 2h 3m 14s, last said: '(flex in the board is minimal)'. |
| 05:05.26 | *** join/#openjtag beewoolie-afk (n=beewooli@dsl-142-026.sea.blarg.net) |
| 06:14.02 | *** join/#openjtag ka6sox (n=ka6sox@nslu2-linux/ka6sox) |
| 06:33.23 | beewoolie | ka6sox: hi |
| 06:33.30 | beewoolie | Kinda quiet tonight. |
| 06:47.55 | ka6sox | ya |
| 06:48.13 | ka6sox | glad to finally be home. |
| 06:54.49 | beewoolie | I learned something interesting a couple of days ago. |
| 06:55.10 | beewoolie | Someone gave me a couple of 5 port hubs because he didn't have the power supplies. |
| 06:55.24 | beewoolie | I opened them up to examine the circuit. |
| 06:55.38 | beewoolie | I wired them so that I could apply power from a bench PS I have. |
| 06:56.00 | beewoolie | The hubs start operating at about 3.5V, but the LEDs peak their brightness at 7v. |
| 06:56.23 | beewoolie | Turns out that these hubs use a DC to DC converter and can accept any DC voltage up to about 40V. |
| 06:57.31 | beewoolie | So, all I need to do is find a wall wart that has the right size plug. |
| 07:01.46 | beewoolie | ka6sox: It's kinda late to be just getting in. |
| 07:03.25 | ka6sox | no kidding! |
| 07:04.05 | ka6sox | I've been out all day in fire fighting mode...I hope tommorrow is sane. |
| 07:04.23 | ka6sox | those hubs sound like a good deal :) |
| 07:04.28 | ka6sox | who makes em? |
| 07:30.22 | beewoolie | These are linksys jobbers. |
| 07:30.51 | beewoolie | 5 port. No switches, there is a plug for mdix to support uplinking. All of the new gear auto-detects. |
| 07:31.04 | beewoolie | Still, I like having some small stuff like this for testing. |
| 07:34.32 | ka6sox | that is always good to have around. |
| 07:56.59 | beewoolie | w00t! I've got the boundary scan reading from flash. |
| 07:57.39 | ka6sox | which board? |
| 07:58.23 | beewoolie | This is with one of the ARM9 targets. |
| 07:58.46 | beewoolie | This should work on the Xscale as well since it doesn't use the CPU to perform the read. |
| 07:59.05 | beewoolie | It won't be fast, but it is an important step in performing the boundary scan. |
| 07:59.15 | ka6sox | indeed |
| 08:49.11 | beewoolie | later. |
| 08:49.21 | *** part/#openjtag beewoolie (n=beewooli@dsl-142-026.sea.blarg.net) |
| 09:06.51 | *** join/#openjtag toi (n=pleemans@d5152D12D.access.telenet.be) |
| 09:51.13 | AchiestDragon | hmmm , ok so we got a 20pin arm jtag port , but what about this ? http://www.interfacebus.com/Design_Connector_JTAG_Bus.html |
| 09:55.10 | vmaster | not sure who uses this |
| 09:56.17 | AchiestDragon | no me nether , just think its funny having a industry standard that everyone has a diferent style anyway |
| 09:56.36 | vmaster | the standard doesn't define a connector |
| 09:57.06 | vmaster | and there are so many uses of jtag, a single connector could hardly fit them all |
| 09:57.59 | AchiestDragon | well we got support for 3 so far |
| 09:58.44 | vmaster | arm20, arm14 and digilent? |
| 10:01.13 | AchiestDragon | the digilent , altera byte blaster , arm 20 , got to add the adaptors for the arm 14 , ti/dsp 14 and then set about making a user configurable set for 10,14,16 and 20 pin versions |
| 10:26.44 | AchiestDragon | http://www.whipy.demon.co.uk/sch.pdf , small book of schematics |
| 10:34.48 | AchiestDragon | althogh as theres a analizer cable with probes on the end , using the same connector , it should be posible to clip the probes on to the appropreate pins of the jtag port directly from there , if there is no suitable adaptor |
| 11:36.45 | *** join/#openjtag vmaster_ (i=vmaster@p549B4FCF.dip.t-dialin.net) |
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| 15:22.12 | fishhead | http://news.com.com/Craigslists+laid-back+approach+to+success/2100-1038_3-6034114.html?tag=nefd.top <----- impressive |
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| 15:48.02 | fishhead | W00HOO, NTP'S FINALY PATENT AGAINST BLACKBERRY HAS BEEN TOSSED, HEY NTP "YOU GO TO HELL AND YOU DIE!!!!!!" |
| 15:50.54 | lennert | fishhead, meet ignore list. ignore list, meet fishhead. |
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| 18:21.42 | fishhead | MY PPC BOARD IS HERE! WOOP! |
| 18:31.18 | fishhead | plays with http://elinux.org/wiki/DHT-Walnut |
| 18:45.06 | fishhead | has to head out, be back tonight |
| 19:32.01 | *** part/#openjtag velinp (n=velinp@c88-163.cable.netissat.bg) |
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| 20:02.06 | velinp | ~seen ka6sox |
| 20:02.18 | purl | ka6sox <n=ka6sox@nslu2-linux/ka6sox> was last seen on IRC in channel #openjtag, 12h 3m 3s ago, saying: 'indeed'. |
| 20:36.37 | *** part/#openjtag velinp (n=velinp@c88-163.cable.netissat.bg) |
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| 22:18.33 | AchiestDragon | not having checked the spec's of the buffers the ep1220 used on his board , do they support 5v logic levels for the jtag ? |
| 22:24.42 | ka6sox-office | it it time for bed yet? |
| 22:24.53 | AchiestDragon | hmmm 4.8v but not 5v according to the chip data |
| 22:25.00 | ka6sox-office | ouch |
| 22:25.05 | ka6sox-office | put a resistor :) |
| 22:25.17 | ka6sox-office | BIG one. |
| 22:25.22 | AchiestDragon | lol |
| 22:26.12 | ka6sox-office | in brazil a 47ohm resistor becomes 47Kohms when its in the 2 watt size :) |
| 22:26.41 | AchiestDragon | well it could be possable to add 5v jtag support , but going to mean a level translation adaptor |
| 22:26.46 | ka6sox-office | (at least that is what the pretty young girl behind the counter at the Electronics store told me. |
| 22:27.13 | AchiestDragon | lol |
| 22:27.22 | ka6sox-office | leave the driver chip in a socket. |
| 22:27.43 | AchiestDragon | there s/m so no sokets |
| 22:28.06 | ka6sox-office | k |
| 22:28.29 | AchiestDragon | there 4.8v tolarant inputs , so will cope with 5v logic levels , but its not going to cope with a 5v vcc on the sence line |
| 22:28.56 | ka6sox-office | nope |
| 22:30.00 | AchiestDragon | a resitor and a zener on the vcc sence line could be used to set a max vref voltage to 4.5v that the buffers could be driven at |
| 22:31.07 | AchiestDragon | with limiting resitors on the inputs that should provide 5v support , but they would not realy be wanted if working at the other voltages |
| 22:31.47 | AchiestDragon | like 1.2v , 1.8v ,2.5v and 3.3v |
| 22:32.54 | lennert | s3 is 5v tolerant if you have a current limiting resistor |
| 22:34.39 | AchiestDragon | its the ttl sn74avc4t245's used for the level translaters , there second vcc is driven by the jtag vref so there levels are right for the logic levels in use |
| 22:34.53 | AchiestDragon | but there max vcc is 4.8v |
| 22:36.09 | lennert | right, ttl |
| 22:36.48 | AchiestDragon | and although the inputs are 4.8v tolarant , that is in the range of 5v logic levels , there needs to be some limiting resistors and a method of reducing the vccref to inside the spec of the chip |
| 22:38.13 | AchiestDragon | so for a 5 v vref and 5v logic we would need to be driving the translators vcc at 4.5v max |
| 22:41.34 | AchiestDragon | reading the spec for the ada-jds-tms and ada-jds-tms-lv thats the jtag standard for the ti tms320 jtag ports ,, the lv is a low voltage 1.2 to 3.3v and the other a 5v |
| 22:42.04 | ka6sox-office | ah |
| 22:42.12 | AchiestDragon | they have 2 adaptors , one for the 5v and one for the low voltage , guess they got the same problem |
| 22:44.50 | AchiestDragon | well could do one feedthough adaptor that would just do a compleate level translate form 5v to 4.5v using resitors , that can be fitted for both the jtag or analizer where 5v logic support is needed |
| 22:45.16 | ka6sox-office | good plan :) |
| 22:46.56 | AchiestDragon | 18 resitors and 1 zenner , and 2 connectors (26pin .1") one male one female |
| 22:47.14 | AchiestDragon | and a cap or two |
| 22:49.21 | ka6sox-office | :) |