2013-04-26 00:10 the bootrom checks whether OSTCNTL >= 9766 * v1 2013-04-26 00:12 well, it explains why it reacts different to low values of v1, but what is it doing here? 2013-04-26 00:12 (OSTCNTL is the lower 32 bit of the OS timer) 2013-04-26 00:13 wolfspraul has joined #qi-hardware 2013-04-26 00:15 wolfspraul has quit [Client Quit] 2013-04-26 00:15 wolfspraul has joined #qi-hardware 2013-04-26 00:36 mth: I have no idea 2013-04-26 00:39 xiangfu has joined #qi-hardware 2013-04-26 00:45 there seem to be 3 instances of "goto " 2013-04-26 00:45 "jr t4" and "jalr s4" (2x) 2013-04-26 00:46 the "jr t4" jumps into SRAM #2, so it's not used when executing code from the cache 2013-04-26 00:46 this means we're being called by jalr and therefore have an address to return to 2013-04-26 00:47 in both cases, the code returned to then immediately jumps to 0xbfc0128c 2013-04-26 00:47 which is in the same routine as bfc0130c is, but earlier 2013-04-26 00:49 the code that sets v1 is before 0xbfc0128c though 2013-04-26 01:48 unclouded has joined #qi-hardware 2013-04-26 01:54 freemor has joined #qi-hardware 2013-04-26 02:31 Calyp_ has joined #qi-hardware 2013-04-26 02:34 Calyp has quit [Ping timeout: 258 seconds] 2013-04-26 02:53 wolfspraul has quit [Quit: leaving] 2013-04-26 03:03 DocScrutinizer05 has quit [Disconnected by services] 2013-04-26 03:03 DocScrutinizer05 has joined #qi-hardware 2013-04-26 03:09 panda|x201 has quit [Ping timeout: 248 seconds] 2013-04-26 03:10 emeb has quit [Quit: Leaving.] 2013-04-26 03:33 freemor has left #qi-hardware [#qi-hardware] 2013-04-26 04:13 wolfspraul has joined #qi-hardware 2013-04-26 04:33 jekhor has joined #qi-hardware 2013-04-26 04:36 unclouded has quit [Ping timeout: 245 seconds] 2013-04-26 05:06 pcercuei has quit [Quit: dodo] 2013-04-26 05:13 wolfspraul has quit [Quit: leaving] 2013-04-26 05:34 jekhor has quit [Ping timeout: 272 seconds] 2013-04-26 05:40 panda|x201 has joined #qi-hardware 2013-04-26 06:03 wolfspraul has joined #qi-hardware 2013-04-26 06:20 Caly__ has joined #qi-hardware 2013-04-26 06:24 Calyp_ has quit [Ping timeout: 272 seconds] 2013-04-26 06:25 Caly__ has quit [Ping timeout: 245 seconds] 2013-04-26 06:26 Caly__ has joined #qi-hardware 2013-04-26 06:37 mth: we do have the bootrom asm 2013-04-26 06:37 well for the jz4740 2013-04-26 06:39 unclouded has joined #qi-hardware 2013-04-26 06:43 annotated asm or just objdump output? 2013-04-26 06:43 because I got the latter for jz4770 now 2013-04-26 06:44 by the way, preserving v1 and a0 fixes the problem 2013-04-26 06:44 I'll be pushing the fix to ingenic-boot later (other changes still need cleanups) 2013-04-26 06:45 unclouded has quit [Quit: Leaving] 2013-04-26 06:57 mth: http://projects.qi-hardware.com/index.php/p/openwrt-xburst/source/tree/master/package/boot/uboot-xburst/patches/0002-qi_lb60-add-software-usbboot-support.patch 2013-04-26 06:57 usbboot.S 2013-04-26 06:57 and yes it is annotated 2013-04-26 07:03 I don't think this is the same code I'm talking about 2013-04-26 07:03 lekernel has joined #qi-hardware 2013-04-26 07:04 well, it's the bootrom, at least the usbboot protocol part 2013-04-26 07:04 inside the SoC itself, there is a small ROM area which at address 0x1fc00000 2013-04-26 07:04 s/at/is at/ 2013-04-26 07:04 mth meant: "inside the SoC itself, there is a small ROM area which is at address 0x1fc00000" 2013-04-26 07:04 yes 2013-04-26 07:05 but the code you linked has a comment "Relocate code to beginning of the ram" 2013-04-26 07:05 while the code in the SoC cannot bring up the RAM 2013-04-26 07:06 yes, I guess it has been modified to run in the ram instead of the rom 2013-04-26 07:08 wolfspraul has quit [Quit: leaving] 2013-04-26 07:15 there is some similarity in the way the USB controller is accessed, but the overall flow is very different 2013-04-26 07:15 I don't know if that's because of JZ4740 and JZ4770 differences or not 2013-04-26 07:17 the whole timeout mechanism that was causing problems for me doesn't exist in this version 2013-04-26 07:20 thanks for the link though, it might be useful if I want to learn more about the protocol one day 2013-04-26 07:21 hmmm... http://www.thinkgeek.com/product/b70c/ http://www.thinkgeek.com/product/eb92/ gives me ideas 2013-04-26 07:21 I think I already seen IR-RC made like this 2013-04-26 07:23 they say it's great for children, but if it takes 2 hours to dry it's not really practical for experimentation 2013-04-26 07:30 I think the first thing I'd try is to see what happens when you use the conductive paint on skin ;) 2013-04-26 07:48 cod3r has joined #qi-hardware 2013-04-26 07:50 if they actually use carbon fibre then this could get pretty nasty 2013-04-26 07:51 aaaah, seems there's something left over from Iraq war 2013-04-26 07:52 didn't they short power lines with carbon fibre bombs 2013-04-26 07:54 DocScrutinizer05: huh? 2013-04-26 07:55 ========== <-powerline //\\/\/<- crbon fibres 2013-04-26 07:56 50kV lines 2013-04-26 07:56 or 100kV 2013-04-26 07:57 they took power plants out by shorting the wires 2013-04-26 07:57 ⚡⚡⚡ ⚡⚡⚡ 2013-04-26 07:58 now they probably recycled the surplus bombs and played "does it blend?" with the carbon fibres, then mixed it with wallpaper glue 2013-04-26 07:59 won't that result in a huge discharge arc and failsafe switch on the plant? 2013-04-26 07:59 and then it'll turn back on again 2013-04-26 07:59 if it has one 2013-04-26 07:59 larsc: er... some of them don't? 2013-04-26 07:59 hmm, seems the shorts been permanent 2013-04-26 07:59 DocScrutinizer05: I'm pretty damn sure the fiber will be vaporized 2013-04-26 07:59 you can find lots of videos like that on 'tube 2013-04-26 07:59 it's carbon 2013-04-26 07:59 so? 2013-04-26 07:59 well 2013-04-26 08:00 it's not enough carbon to dissipate several MW 2013-04-26 08:01 the first few fibres take out the power plant and might evaporize or rather burn, the rest will happily sit on the powerless wires and short any next effort to power up the line again 2013-04-26 08:01 also wire cut is likely 2013-04-26 08:02 DocScrutinizer05: (short any next effort) isn't the only thing you need to do is to power up the line? it will remove the fiber itself. the arcing probably will be a problem, however. 2013-04-26 08:02 I'm not sure to what extent will the wires degrade 2013-04-26 08:02 http://www.fas.org/man/dod-101/sys/dumb/blu-114.htm 2013-04-26 08:03 > During the Gulf War Iraq responded to the use of this type of munition by disconnecting electrical power grid circuit breakers. 2013-04-26 08:03 I think the more protective gear they have, the more trouble to power up a shorted line 2013-04-26 08:03 DI 2013-04-26 08:03 probably 2013-04-26 08:03 I also heard some of that gear is both very expensive and one-time use 2013-04-26 08:03 yep 2013-04-26 08:04 yeah exactly... it seems that the arcing did damage the wires 2013-04-26 08:16 * DocScrutinizer05 wonders of BGA can be glued instead reflowed 2013-04-26 08:18 unclouded has joined #qi-hardware 2013-04-26 08:18 you for sure need perfect glue application and component positioning, since no self centering and small surface tention of glue 2013-04-26 08:19 but hey, no more reflow, no more heat. No more water steam explosions in balls 2013-04-26 08:23 interesting, the Broadcom Videocore reverse engineering folks have custom code running on the part of the RPi GPU responsible for booting 2013-04-26 08:24 lekernel has quit [Quit: Leaving] 2013-04-26 08:38 lindi-: yeah, except they don't really know anything about videocore and can neither activate the framebuffer (not even talking about 3D) nor boot the ARM core 2013-04-26 08:39 * whitequark tries to get NFC working on his phone 2013-04-26 08:39 either bad phone or bad tags :/ 2013-04-26 08:39 they are kinda write-only, and I think only a single attempt of several dozen succeeded 2013-04-26 08:41 unclouded has quit [Remote host closed the connection] 2013-04-26 08:45 panda|x201 has quit [Read error: Connection reset by peer] 2013-04-26 09:01 hmmm interesting 2013-04-26 09:02 it seems that first 8 bytes of even a clean tag are non-random garbage 2013-04-26 09:15 serial # ? 2013-04-26 09:37 DocScrutinizer05: nope 2013-04-26 09:37 serial is before that 2013-04-26 09:38 the weird thing is: it's an NXP tag and NXP tag reader (does anyone else make them? all NFC stuff I could find at my place was by NXP) 2013-04-26 09:38 sooo I clean the tag, and apart from system info it contains 01 03 A0 10 44 03 00 FE 2013-04-26 09:39 and this is correctly recognized by the tag reader as an empty NDEF record 2013-04-26 09:40 Caly__ is now known as Calyp 2013-04-26 09:41 Calyp has quit [Changing host] 2013-04-26 09:41 Calyp has joined #qi-hardware 2013-04-26 09:42 but when I write the actual info to the tag, it contains 01 03 A0 10 44 44 0E and an actual NDEF record 2013-04-26 09:43 which I can recognize manually 2013-04-26 09:43 nothing in the prologue seems to be a valid record start 2013-04-26 09:44 FE seems to be an epilogue (actual info also contains it at the end) but it is not a valid record according to the NDEF standard 2013-04-26 09:44 maybe there's more framing going on 2013-04-26 09:44 why do I have to do this at all! >_< it should be a consumer technology. easy to use yadda yadda 2013-04-26 09:57 HWSON8: plastic thermal enhanced very very thin small outline package 2013-04-26 10:04 wolfspraul has joined #qi-hardware 2013-04-26 10:06 indeed, there's another TLV structure there 2013-04-26 10:08 hmmm right 2013-04-26 10:09 instead of "44 0E" there should've been "03 0E" for it to be a valid T/L for an NDEF record 2013-04-26 10:09 I wonder why it writes 44 there... 2013-04-26 10:35 jekhor has joined #qi-hardware 2013-04-26 10:58 rz2k has joined #qi-hardware 2013-04-26 10:58 FDCX has quit [Ping timeout: 264 seconds] 2013-04-26 10:59 FDCX has joined #qi-hardware 2013-04-26 11:18 jekhor has quit [Read error: Connection reset by peer] 2013-04-26 11:54 baba has joined #qi-hardware 2013-04-26 11:55 freemor has joined #qi-hardware 2013-04-26 11:56 cod3r has quit [Ping timeout: 260 seconds] 2013-04-26 12:10 jluis has quit [Ping timeout: 264 seconds] 2013-04-26 12:30 FDCX has quit [Ping timeout: 264 seconds] 2013-04-26 12:42 fdcx_ has joined #qi-hardware 2013-04-26 13:16 pcercuei has joined #qi-hardware 2013-04-26 13:17 guanucoluis has joined #qi-hardware 2013-04-26 13:26 porchao has joined #qi-hardware 2013-04-26 13:26 Ornotermes has quit [Ping timeout: 264 seconds] 2013-04-26 13:27 porchaso0 has quit [Ping timeout: 256 seconds] 2013-04-26 13:45 baba is now known as megha 2013-04-26 14:46 kilae has joined #qi-hardware 2013-04-26 14:47 wej has quit [Ping timeout: 248 seconds] 2013-04-26 14:49 wej has joined #qi-hardware 2013-04-26 14:56 Ornotermes has joined #qi-hardware 2013-04-26 15:00 Ornotermes has quit [Ping timeout: 264 seconds] 2013-04-26 15:08 Ornotermes has joined #qi-hardware 2013-04-26 15:11 Calyp has quit [Quit: gone working on freeconomy =o)] 2013-04-26 15:12 Ornotermes has quit [Read error: Connection reset by peer] 2013-04-26 15:13 Ornotermes has joined #qi-hardware 2013-04-26 15:24 xiangfu has quit [Remote host closed the connection] 2013-04-26 15:31 Ornotermes has quit [Ping timeout: 256 seconds] 2013-04-26 15:32 Ornotermes has joined #qi-hardware 2013-04-26 15:41 LunaVorax has joined #qi-hardware 2013-04-26 15:41 Ornotermes has quit [Read error: Connection reset by peer] 2013-04-26 15:41 Ornotermes has joined #qi-hardware 2013-04-26 15:43 rzk has joined #qi-hardware 2013-04-26 15:44 emeb has joined #qi-hardware 2013-04-26 15:44 Ornotermes has quit [Read error: Connection reset by peer] 2013-04-26 15:44 rz2k has quit [Ping timeout: 264 seconds] 2013-04-26 15:49 Ornotermes has joined #qi-hardware 2013-04-26 16:26 megha has quit [Ping timeout: 240 seconds] 2013-04-26 17:01 LunaVorax has quit [Ping timeout: 256 seconds] 2013-04-26 18:18 kuribas has joined #qi-hardware 2013-04-26 18:19 Can the nanonote linux kernel be used for other ingenic devices? 2013-04-26 18:20 I bought a very cheap linux ereader (http://www.walmart.com/ip/iTomic-IEBR7C-7-eBook-Reader/19887947) and I would like to put linux on it. 2013-04-26 18:21 The processor is a jz4755. 2013-04-26 18:21 not easily 2013-04-26 18:23 There is little documentation on the chip, however I found a patched linux kernel from the manufacturer. 2013-04-26 18:42 the jz47xx kernel tree has support for other SoCs like the jz4755 2013-04-26 18:42 but unless you know what you are doing you probably wont get somewhere easily 2013-04-26 18:50 that sounds like a universal truth :) 2013-04-26 18:59 buy ereader, try to put linux there, get too much involved, never use that ereader to read books :) 2013-04-26 18:59 oh yes 2013-04-26 19:02 I didn't intend to read books with it :) 2013-04-26 19:46 kilae has quit [Quit: ChatZilla 0.9.90 [Firefox 20.0.1/20130409194949]] 2013-04-26 19:47 wej has quit [Ping timeout: 245 seconds] 2013-04-26 19:56 wej has joined #qi-hardware 2013-04-26 20:16 jekhor has joined #qi-hardware 2013-04-26 20:26 jekhor has quit [Ping timeout: 256 seconds] 2013-04-26 20:30 guanucoluis has quit [Ping timeout: 264 seconds] 2013-04-26 20:39 jekhor has joined #qi-hardware 2013-04-26 21:16 woakas has quit [Ping timeout: 272 seconds] 2013-04-26 21:40 kuribas has quit [Remote host closed the connection] 2013-04-26 21:40 Jurting_pc2 has joined #qi-hardware 2013-04-26 21:50 jekhor has quit [Ping timeout: 256 seconds] 2013-04-26 23:05 Jurting_pc2 has quit [Ping timeout: 255 seconds] 2013-04-26 23:24 rz2k has joined #qi-hardware 2013-04-26 23:27 rzk has quit [Ping timeout: 264 seconds] 2013-04-26 23:40 guanucoluis has joined #qi-hardware 2013-04-26 23:48 xdpirate has quit [Read error: Connection reset by peer] 2013-04-26 23:59 guanucoluis has quit [Ping timeout: 256 seconds]