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| 01:43.46 | ulf_ | hi, i still have problems with the flashchip using my wiggler jtag on a xscale board |
| 01:44.09 | ulf_ | some one helped me a bit his name is g2 |
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| 02:37.26 | JerseyCow | moo |
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| 04:18.49 | *** topic/#openjtag is This is the place to discuss development of Open JTAG tools and Bootloaders |
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| 05:00.03 | *** topic/#openjtag is This is the place to discuss development of Open JTAG tools and Bootloaders |
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| 08:58.47 | ka6sox-away | ep1220: ping |
| 08:58.47 | ep1220 | hi |
| 08:58.55 | ka6sox-away | morning |
| 08:59.34 | ep1220 | I looked at the module You used |
| 08:59.41 | ka6sox-away | ah...conclusions? |
| 09:00.01 | ep1220 | unfortunately the pins used by the JTAG engine go to the PIC |
| 09:00.53 | ka6sox-away | bummer |
| 09:01.49 | ka6sox-away | so the cheaper one is better eh? |
| 09:02.00 | ep1220 | definitively |
| 09:02.18 | ep1220 | it has all ports freely available |
| 09:02.38 | ka6sox-away | so a carrier board would be helpful? |
| 09:02.49 | ep1220 | yes |
| 09:03.07 | ep1220 | The module alone is not usable |
| 09:04.07 | dyoung | sure it is. You can put it on your monitor and look at it. or wear it as jewlery.... :-) |
| 09:04.20 | dyoung | Its not quite heavy enough to be a paperweight. |
| 09:04.39 | ka6sox-away | heh |
| 09:05.05 | ka6sox-away | but the code that is developed can work for both. |
| 09:05.17 | ka6sox-away | (minus the bits that talk to the micro) |
| 09:06.24 | ka6sox-away | ep1220: do you have the PCB EDA package? |
| 09:06.45 | ep1220 | All 4 bits of the JTAG engine go to the PIC. |
| 09:07.06 | ka6sox-away | bummer |
| 09:07.23 | ep1220 | I do have an older CADSTAR, plus have access to PADS and Altium Designer. |
| 09:07.46 | ka6sox-away | if you have X on a linux box you can download it... |
| 09:07.56 | ka6sox-away | most distro's have it |
| 09:08.48 | ep1220 | Some month's ago I installed the PCB/EDA on a SUSE, but just looked at the JTAG sample |
| 09:09.00 | ep1220 | BTW: Do you know http://www.lis.inpg.fr/realise_au_lis/kicad/ ? |
| 09:11.22 | ka6sox-away | no...but it looks interesting. |
| 09:11.38 | ep1220 | I found it a few days ago, did not try yet. |
| 09:11.45 | ka6sox-away | I'll download and play |
| 09:12.07 | ka6sox-away | the PCB software works fine for most of the apps that I do. |
| 09:13.52 | ka6sox-away | I can also send pdf's |
| 09:14.01 | ka6sox-away | but its better to view in the native app. |
| 09:14.40 | ep1220 | I think I should be able to view he native files |
| 09:15.07 | ep1220 | I have no hope for using the FTDI JTAG-engine on the 2232PB |
| 09:15.37 | ep1220 | 2 of the pins are even shorted together. According to http://www.dlpdesign.com/usb/dlp-2232pbv14.pdf |
| 09:17.24 | ep1220 | One could only use the GPIOs AC0-3 for bitbanging |
| 09:17.30 | ep1220 | But that would be slow |
| 09:17.54 | ka6sox-away | very..the engine is what we want. |
| 09:21.30 | ka6sox-away | I'll look and see what I have to mod on my layout to accomodate the other unit |
| 09:21.43 | ka6sox-away | ar you using the M or ? |
| 09:23.46 | ep1220 | DLP2232M |
| 09:26.25 | ka6sox-away | I looked at that one for my purposes and decided to go with the micro for some "local" smarts. |
| 09:27.41 | ep1220 | You could implement a JTAG engine on the Micro. |
| 09:28.23 | ka6sox-away | yep. |
| 09:29.21 | ep1220 | I hardly no PIC. |
| 09:30.04 | ep1220 | s/no/know/ |
| 09:30.40 | ep1220 | I tried 8051, effective instruction rate 12MIPS |
| 09:30.59 | ka6sox-away | thats a fast 8051 |
| 09:31.10 | ka6sox-away | most of them are like 3MIPS |
| 09:31.18 | ka6sox-away | depending on instruction set mix |
| 09:31.37 | ep1220 | I know. It is the Cypress USB2 chip used by the digilent Spartan USB IF |
| 09:31.54 | ka6sox-away | thats nice but pricey |
| 09:32.03 | ep1220 | 48MhZ clock, 4 cales/instruction (believe a Dallas 8051) |
| 09:32.22 | ka6sox-away | dallas' implementation is good. |
| 09:32.34 | ka6sox-away | still an old core |
| 09:33.03 | ep1220 | With this chip i got 0,5 to 0,8MHZ equivalent JTAG clock |
| 09:33.20 | ep1220 | the FTDI does 6MHz |
| 09:33.24 | ka6sox-away | the PIC only has 35 instrucions. |
| 09:33.54 | ep1220 | all single clock cycle ? |
| 09:34.00 | ka6sox-away | yes |
| 09:34.13 | ka6sox-away | and I think it runs at 20mhz |
| 09:34.26 | ep1220 | I see a 20MHz crystal on 2232PB schematic |
| 09:34.48 | ka6sox-away | I don't think its a 2 phase clock |
| 09:35.03 | ep1220 | how much RAM ? |
| 09:38.00 | ka6sox-away | 368 |
| 09:39.33 | ka6sox-away | not a big buffer |
| 09:39.51 | ep1220 | yep |
| 09:40.31 | ka6sox-away | well...I need to get some sleep here...be on in about 8hrs. |
| 09:40.39 | ka6sox-away | thanks for looking at that. |
| 09:40.52 | ep1220 | Time for lunch here :-) |
| 09:42.00 | ka6sox-away | enjoy! |
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| 11:49.10 | ulf_ | hi, i still have problems with the flashchip using my wiggler jtag on a xscale board |
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| 18:57.22 | ep1220 | ka6sox-office: Did You get my e-mail ? |
| 19:01.00 | [g2] | hey ep1220 ! |
| 19:01.17 | ep1220 | hey [g2] ! |
| 19:08.12 | ep1220 | [g2]: Did You see this: http://www.linuxdevices.com/news/NS7628968013.html |
| 19:12.14 | [g2] | ep1220 yes I did see that a couple days ago |
| 19:12.20 | [g2] | I didn't check the price though |
| 19:12.32 | ep1220 | http://www.linuxdevices.com/news/NS7628968013.html says it is 750$ |
| 19:12.51 | [g2] | that's what I thought it would be |
| 19:12.51 | ep1220 | Looks like the FTDIchip |
| 19:13.00 | [g2] | the old one was $750 |
| 19:13.32 | [g2] | have you been following the slug progress much ? |
| 19:13.56 | [g2] | fyi there's a debian BE and LE port |
| 19:14.17 | ep1220 | not carefully. But i read about the debian port |
| 19:14.32 | [g2] | I'm running the BE port and it's pretty sweet |
| 19:15.47 | ep1220 | Is there an advantage running BE over LE ? |
| 19:16.53 | [g2] | yes |
| 19:17.07 | [g2] | the BE port uses the openslug kernel which can use the onboard ethernet |
| 19:17.19 | [g2] | the LE port uses an external usb-ethernet adapter |
| 19:17.31 | [g2] | there's only about 1800 packages in the BE port |
| 19:17.54 | [g2] | but porting is really pretty straight forward |
| 19:18.22 | [g2] | I built thttpd, postfix and some other stuff from source this morning |
| 19:20.32 | ep1220 | On Your own device: Do You have ethernet BE and LE ? |
| 19:21.00 | [g2] | BE |
| 19:21.24 | [g2] | I haven't run LE (even though I've got a few usb-ethernet adapters) |
| 19:21.46 | [g2] | from a security point-of-view I'd think BE is much safer |
| 19:22.03 | [g2] | and LE is probably already 1000 x safer than x86 |
| 19:22.21 | ep1220 | why? |
| 19:22.38 | ka6sox-zzzz | ep1220, got the email..thaniks |
| 19:22.45 | ka6sox-zzzz | and I have printed up the schematic |
| 19:22.54 | ka6sox-zzzz | now putting it on the computer |
| 19:24.04 | [g2] | schematics cool :) |
| 19:24.18 | ep1220 | ka6sox-zzzz: transfer to PCB/GEDA? |
| 19:28.18 | ka6sox-zzzz | geda |
| 19:28.52 | ka6sox-zzzz | because the M is not a standard part I'l have to hand lay out..but its fairly easy. |
| 19:29.22 | ep1220 | Just 40 pins ;-) |
| 19:29.38 | ka6sox-zzzz | ya...the other one is 50 pins |
| 19:30.46 | ka6sox-zzzz | *just* 50 pins :) |
| 19:34.35 | ep1220 | ka6sox-zzzz: I chose parts based on what i and the nearest electronic shop had "in stock" |
| 19:35.14 | [g2] | ep1220 why is LE 1k X safer than x86 ? |
| 19:35.45 | ep1220 | yes |
| 19:36.22 | [g2] | because there are > 600 million x86 boxes out there and all 99.9% of all the exploits are written for them |
| 19:36.53 | ep1220 | good argument :-) |
| 19:37.00 | [g2] | mac are a lot safer just because they are PPC and only represent < 5% of the market |
| 19:37.42 | [g2] | all the script kidies aren't trying to probe weird arches, they're probing the mainstream stuff |
| 19:39.34 | ep1220 | Someone should come up with a CPU which has a programmable unmangler in the prefetch queue. |
| 19:39.51 | ep1220 | So each CPU can have its own instruction set. |
| 19:40.09 | ep1220 | Also would solve problem of piracy |
| 19:40.21 | [g2] | yeah transmeta did that :) |
| 19:40.47 | ep1220 | Damn, i though i could patent it |
| 19:42.11 | ka6sox-zzzz | do it on FPGA's |
| 19:45.28 | [g2] | hey we can't get JTAG going in FPGA's maybe we should start smaller :) |
| 19:45.36 | [g2] | JTAG first, Processors 2nd |
| 19:45.41 | [g2] | :)) |
| 19:46.50 | ep1220 | Well it does not help against attacks like SQL injection, ... |
| 19:49.33 | [g2] | well I don't know how much SQL SOHO sites will be accepting |
| 19:50.48 | ep1220 | arent there similar attacks against php and php based products ? |
| 19:51.30 | [g2] | most of the attacks cause buffer overflows to get code running |
| 19:52.00 | [g2] | an in those cases, it'll be the wrong arch |
| 19:52.08 | ep1220 | yea, For these it is a good protection |
| 19:53.26 | [g2] | as far as the Loft goes the roots is on removable media and there's only .5MB flash which can all be quickly verified / reprogrammed from the JTAG header |
| 19:56.06 | ep1220 | I have to leave now. See You tomorrow |
| 19:56.17 | [g2] | cheers |
| 19:56.40 | *** part/#openjtag ep1220 (n=NN@gate.epatec.at) |
| 21:08.16 | prpplague | anyone have nand flash experience? |
| 21:08.43 | *** part/#openjtag odoc (i=odoc@is.borntobooze.de) |
| 21:08.53 | [g2] | not I :( |
| 21:09.36 | ka6sox | we use it at work. |
| 21:11.10 | prpplague | ka6sox: any idea what kind of desktop programmer is used with them? or are they programmed in circuit with jtag? |
| 21:16.06 | ka6sox | we program it with the running system. |
| 21:16.34 | ka6sox | we use nor flash for the boot stuffs and use NAND flash for apps. |
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