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| [08:05:29] |
<g1powermac_apl> |
heya GPSFan |
| [08:05:49] |
<g1powermac_apl> |
trying to determine this morning if the aer chip is a lpc915 |
| [08:16:18] |
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| [08:22:29] |
<g1powermac_apl> |
ok, it doesn't look great to be a lpc915 |
| [08:22:45] |
<g1powermac_apl> |
the resistance between the pins that should be vcc and gnd isn't much at all |
| [08:23:31] |
<g1powermac_apl> |
of the pinout could be different since it could be a rebranded lpc915 |
| [08:23:38] |
<g1powermac_apl> |
of *course |
| [08:28:25] |
<g1powermac_apl> |
interesting, when on, those pins are the proper voltage, suspected vcc at 3.3v and gnd at 0 |
| [08:29:20] |
<g1powermac_apl> |
man, its hard to work on this pcb, the components are so small |
| [08:52:08] |
<g1powermac_apl> |
ok, gathered some more info |
| [08:52:13] |
<g1powermac_apl> |
will post soon |
| [09:06:10] |
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| [09:11:02] |
<GPSFan> |
g1powermac_PB: morning.. |
| [09:25:26] |
<g1powermac_PB> |
heya GPSFan |
| [09:25:37] |
<g1powermac_PB> |
gathered some interesting info |
| [09:25:53] |
<g1powermac_PB> |
got all the voltages in the area where we suspect to be the jtag stuff |
| [09:26:01] |
<g1powermac_PB> |
also got some really close up shots |
| [09:26:04] |
<g1powermac_PB> |
of the area |
| [09:26:58] |
<GPSFan> |
ywah, well the thought that the AER915 was an LPC915 was based on several coincidental facts, same package, 915 appearing in both, AER first letters of Aeronix. YMMV |
| [09:27:39] |
<GPSFan> |
one could always de-lit the device and see what logo's show up on the die. |
| [09:27:51] |
<GPSFan> |
de-lid |
| [09:28:18] |
<g1powermac_PB> |
yea |
| [09:28:53] |
<GPSFan> |
you ever see this: http://wifi.openschemes.com/ now that's reverse engineering... |
| [09:29:37] |
<g1powermac_PB> |
http://www.flickr.com/photos/77471288@N00/2451227911/sizes/l/in/set-72157604730204854/ |
| [09:29:43] |
<g1powermac_PB> |
super close up shot of the jtag area |
| [09:30:36] |
<g1powermac_PB> |
wow, thats something |
| [09:31:26] |
<GPSFan> |
with the right tools you can do wonders. |
| [09:33:50] |
<GPSFan> |
http://www.paonia.com/~kenm/Pix/images/Zipit/Z2/AGF00011.JPG |
| [09:34:52] |
<GPSFan> |
http://www.paonia.com/~kenm/Pix/images/Zipit/Z2/AGF00012.JPG |
| [09:39:26] |
<g1powermac_PB> |
nice shots |
| [09:39:53] |
* |
g1powermac_PB made his with a magnifying lens and the unmounted huge chunk of glass macro lens :-) |
| [09:45:45] |
<GPSFan> |
I used my old agfa e1280 with +1, +2, +4 closeup lens, and a large magnifier/circular ring-light. |
| [09:46:01] |
<g1powermac_PB> |
ahh |
| [09:46:14] |
<g1powermac_PB> |
ya got some decent equipment |
| [09:47:45] |
<GPSFan> |
I've been meaning to get a set of closeup lenses for my minolta D7Hi. it takes better pics but can't use the ring-light as well. flat lighting matters a lot in extreme macro. |
| [09:47:50] |
<g1powermac_PB> |
you can see my magnifying lens/lamp here: http://www.flickr.com/photos/77471288@N00/2443844509/ |
| [09:48:23] |
<GPSFan> |
mine is similar, but has a circular fluor tube surronding the lens. |
| [09:48:30] |
<g1powermac_PB> |
ahh |
| [09:48:54] |
<GPSFan> |
as you see in my shots, no shadows. |
| [09:49:11] |
* |
g1powermac_PB also bought one of those magnifying visors off ebay for $10, will help when I'm trying to work on this thing |
| [09:50:21] |
<g1powermac_PB> |
yea, I would've used a nice cfl bulb in my magnifying lens thing if it would've fit it in |
| [09:50:29] |
<g1powermac_PB> |
would've gave a much better light |
| [09:51:14] |
<GPSFan> |
those lights show up at swap meets and surplus outlets, I think I paid $5 or so for it. |
| [09:51:36] |
<g1powermac_PB> |
yea |
| [09:51:54] |
<g1powermac_PB> |
we got ours a while ago for difference reasons |
| [09:56:45] |
<GPSFan> |
g1powermac_PB: when you measured beteween vcc & gnd for the AER915 what were you expecting to see? |
| [09:57:13] |
<g1powermac_PB> |
I was expecting to see a bit more resistance, it was almost non existent |
| [09:57:25] |
<GPSFan> |
did you reverse the ohmmeter leads? |
| [09:57:36] |
<g1powermac_PB> |
had my dmm set at 20k and only saw a 15 or so |
| [09:58:08] |
<g1powermac_PB> |
hmm, not sure, I did check it few times |
| [09:58:14] |
<GPSFan> |
the ommeter puts a dc voltage on the part, often times reversing the leads will result in a defferent reading. |
| [09:58:44] |
<GPSFan> |
also you are measuring all the other parts connected betewwn that vcc and gnd as well. |
| [09:58:57] |
<GPSFan> |
at the same time. |
| [09:58:58] |
<g1powermac_PB> |
that is true |
| [09:59:32] |
<GPSFan> |
if you don't have an lpc915 to compare it with the results are of academic interest only. |
| [09:59:40] |
<g1powermac_PB> |
yea |
| [09:59:44] |
<g1powermac_PB> |
unfortunately |
| [10:00:46] |
<g1powermac_PB> |
this is very interesting: http://www.pastebin.ca/1001793 |
| [10:00:58] |
<GPSFan> |
did you try tracing the supposed vcc & gnd pins to known vcc & gnd points on the z2 board? |
| [10:01:24] |
<g1powermac_PB> |
somebody on #edev gave me the voltage levels for jtag ARM device |
| [10:01:44] |
<g1powermac_PB> |
and the voltage levels on those resistors are fairly similar |
| [10:02:43] |
<g1powermac_PB> |
well, definitely traced it back to gnd, I think I was able to find vcc |
| [10:02:45] |
<GPSFan> |
well some pins are inputs, some outputs. the outputs will be either close to vcc or gnd, and the inputs may be almost anything, depending whether they are pulled up, down, or are floating. |
| [10:03:34] |
<g1powermac_PB> |
yea |
| [10:04:02] |
<g1powermac_PB> |
ok, so all we know at this point about the aer chip is that there is proper voltage levels on the power/gnd pins |
| [10:04:12] |
<g1powermac_PB> |
hasn't discounted it yet |
| [10:04:43] |
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| [10:05:27] |
<GPSFan> |
the other thing is that it may not matter what that chip actually is. if it does it's job and doesn't require any special handling for a custom userland or kernel to work. |
| [10:06:37] |
<GPSFan> |
just leave it as a TBD for now untill such time as it becomes important to really know what it is doing. |
| [10:06:43] |
<g1powermac_PB> |
true, however, it could be part of the boot process, which might be needed to replace the boot loader and such |
| [10:07:36] |
<GPSFan> |
read through the blob boatloader source, and the PXA usermanual about booting from alternate sources. |
| [10:08:01] |
<g1powermac_PB> |
yea, I should do that |
| [10:08:36] |
<GPSFan> |
beware blob is filled with twisty little passages, all different. |
| [10:29:32] |
<g1powermac_PB> |
*sigh* |
| [10:29:48] |
* |
g1powermac_PB almost blacked out when standing up from a sitting position |
| [10:30:38] |
<g1powermac_PB> |
definitely not a good thing |
| [10:44:28] |
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| [11:23:30] |
<g1powermac> |
GPSFan, interesting, playing with wpa_supplicant on the zipit, its saying the MAC address on the zipit is different than whats marked on the bottom of it |
| [11:24:43] |
<g1powermac> |
could be why it didn't want to connect originally, since I have mac address filtering setup on my wifi |
| [11:34:08] |
<ali_as> |
<g1powermac_apl> the resistance between the pins that should be vcc and gnd isn't much at all |
| [11:34:14] |
<ali_as> |
In both directions? |
| [11:36:55] |
<g1powermac> |
don't remember if I tested it both ways |
| [11:37:17] |
<g1powermac> |
whats the control key on this thing? |
| [11:38:51] |
<GPSFan> |
g1powermac: that's very interesting, my wavemon shows a different mac address from what's printed on the bottom. what are the first3 octets of yours? |
| [11:39:33] |
<g1powermac> |
argh, can't get udhcpc to stop. . .need control-c. . . |
| [11:40:48] |
<g1powermac> |
well, wpa_supplicant says 00:50:43 |
| [11:41:06] |
<g1powermac> |
written on the bottom it says 00:1D:04 |
| [11:41:11] |
<GPSFan> |
g1powermac: my label says 00:1d:04 and wavemon says 00:50:43 |
| [11:41:20] |
<g1powermac> |
interesting |
| [11:41:52] |
<g1powermac> |
I'm guessing no one knows how to send a ctrl-c using the zipit's keyboard. . . |
| [11:41:55] |
<GPSFan> |
when you run the normal zipit app, what does the system info screen say |
| [11:42:19] |
<GPSFan> |
the z1 kbd had a ctrl key ;>) |
| [11:43:27] |
<g1powermac> |
in the system info page, it shows the one written on the bottom |
| [11:44:11] |
<GPSFan> |
what's the last octet of the 00:50 one? |
| [11:44:31] |
<g1powermac> |
01 |
| [11:45:36] |
<GPSFan> |
mine too, I bet there is something hosed with the way networking is setup where the MAC is stored. |
| [11:45:59] |
<g1powermac> |
prolly |
| [11:47:23] |
<GPSFan> |
the zipit app probably gets the MAC address from a special place in the flash, since there is no storage in the wifi interface for it. |
| [11:48:03] |
<g1powermac> |
possibly |
| [11:49:45] |
<GPSFan> |
yeah, both the serial # and MAC address are stored in properties.txt in the root of mtd2. same place the zipit app is stored. |
| [11:51:04] |
<GPSFan> |
the 00:50 MAC address is probably what the wireless driver defaults to if one isn't set with wireless tools. |
| [11:52:27] |
<GPSFan> |
from mac-add.txt: 00:50:43 MARVELL SEMICONDUCTOR, INC. |
| [11:53:41] |
<g1powermac> |
ahhh |
| [11:53:51] |
<g1powermac> |
that explains it |
| [11:57:27] |
<GPSFan> |
so somewhere we need a small script to read out properties.txr, parse the mac addy. I wonder if ifconfig -hw works? |
| [11:57:48] |
<g1powermac> |
hmm, good question |
| [11:59:09] |
<GPSFan> |
it's in busybox, and mine has it turned on, I guess I'll have to put my Z2 back together to try. |
| [11:59:36] |
<ali_as> |
g1, always best to test in both directions, chips tend to produce a diode effect so you might have 10k in one direction and less than 100ohms other way. |
| [11:59:39] |
<g1powermac> |
I need to get iwconfig on mine so I can use at home with wep |
| [12:00:35] |
<g1powermac> |
ali_as, yea, I figured that after everyone asked me if I did it both ways :-) |
| [12:00:57] |
<ali_as> |
Sorry, didn't see anyone else ask ;) |
| [12:52:10] |
<g1powermac> |
GPSFan, alright, site updated with voltage levels: http://zipit2system.sourceforge.net/board.html |
| [13:22:37] |
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<bryguy[lap]> |
hey |
| [20:38:19] |
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<bryguy[lap]> |
I got my zipit today :) |
| [22:38:21] |
<Rossimo> |
cool |
| [22:44:00] |
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| [22:50:32] |
<bryguy[lap]> |
There are still some things to be desired but it's a pretty decent machine |
| [22:50:50] |
<bryguy[lap]> |
although it doesn't like my AIM buddy list (it's huge) |
| [22:53:06] |
<Rossimo> |
hah, same here |
| [22:54:31] |
<bryguy[lap]> |
I can't wait till my mini-sd card comes in, so that I can start playing with OE |
| [22:56:43] |
<Rossimo> |
cool, do you already have OE set up? |
| [22:58:41] |
<simc> |
you should start compiling it now :) |
| [22:59:06] |
<simc> |
especially if you have a slow machine |
| [22:59:32] |
<bryguy[lap]> |
oh. fun. |
| [23:01:15] |
<simc> |
I think there is already a binary somewhere on the site but it is best to compile it yourself so you can build packages for it |
| [23:02:16] |
<simc> |
what are your plans for it? |
| [23:05:40] |
<bryguy[lap]> |
Right now, nothing in particular. I heard something about firefox running on it, I wanna try that out |
| [23:06:28] |
<simc> |
really, might have to try that |
| [23:06:38] |
<simc> |
i'm going to use it as an emacs pda |
| [23:07:06] |
<simc> |
I really like the emacs organiser so it would be nice to have it on the move |
| [23:07:20] |
<bryguy[lap]> |
I do want to use it as a pda, but there isn't any real pda software out there for it yet |
| [23:07:36] |
<bryguy[lap]> |
(I don't want to learn how to use emacs) |
| [23:07:52] |
<simc> |
someone was trying to get qtopia on it I think |
| [23:08:13] |
<bryguy[lap]> |
yeah, if they are successful at that, then I could use it as a pda |
| [23:08:33] |
<simc> |
there are open embedded packages for gpe and opie, might want to give those a try |
| [23:08:40] |
<bryguy[lap]> |
I use to have a zaurus that ran qtopia |
| [23:09:00] |
<simc> |
yeah? that would be nice |
| [23:09:22] |
<simc> |
the biggest disadvantage of the z2 I think is the screen resolution |
| [23:09:43] |
<bryguy[lap]> |
yeah |
| [23:09:53] |
<simc> |
I heard the zarus could do 640Xsomething |
| [23:11:24] |
<bryguy[lap]> |
yeah, the zaurus was nice (it's been about 2 years since I had it). I had opera running on it and everything |
| [23:11:48] |
<simc> |
at 320 wide its hard to get 80 columns but I hoping to get 60 with the right font |
| [23:12:19] |
<simc> |
the z2 is nice and cheap tho, that matters a lot to me :) |
| [23:16:59] |
<bryguy[lap]> |
yeah, the price was a big part in my decision |
| [23:17:23] |
<bryguy[lap]> |
I didn't want to spend $500 to get another zaurus |
| [23:18:25] |
<simc> |
yeah, as someone who lost a palm once I have to second that |
