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#rockbox log for 2018-04-18

00:09:47 Quit pamaury (Ping timeout: 265 seconds)
00:20:25fs-bluebotBuild Server message: New build round started. Revision 6dc9d1d, 273 builds, 13 clients.
00:20:27__builtinwell, it's done now :)
00:20:42 Quit ZincAlloy (Quit: Leaving.)
00:21:21__builtingevaerts: took me a while, but all the games work now (even the keyboard-only ones)! :D
00:47:00fs-bluebotBuild Server message: New build round started. Revision e84fc26, 273 builds, 13 clients.
00:48:59 Quit ender` (Quit: The sum of intelligence on the planet is a constant; the population is growing.)
00:56:26 Join jhMikeS [0] (
01:49:13***Saving seen data "./dancer.seen"
01:56:23__builtingreat, net is too big :(
01:57:33__builtinby 52 bytes
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02:13:34__builtin12 bytes
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02:42:59 Quit Strife1989 (Read error: No route to host)
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03:49:14***Saving seen data "./dancer.seen"
04:13:51fs-bluebotBuild Server message: New build round started. Revision 22823e2, 273 builds, 12 clients.
04:16:02 Quit TheSeven (Disconnected by services)
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07:39:37 Join seth_powers [0] (1811e7c2@gateway/web/freenode/ip.
07:40:11 Join michaelni [0] (
07:41:23seth_powersHey everyone! Is there an easy way to install an older release of Rockbox using rbutil? It only gives me the latest stable release and the dev version. (There's a bug in both of those regarding Opus playback.) Thanks!
07:45:55TorCseth_powers: Using RButil? Not that I know of. Just find the old release, download, and unzip to player root.
07:46:10TorCThat's all RButil really does for updates anyway.
07:47:30seth_powersinstallation is just unzipping and putting it on the root of the player's fs?
07:47:42TorCYep. That simple.
07:48:10seth_powersI was trying to build the old version, and I was having a bit of trouble. Errors in `make`...
07:48:20seth_powersTrying to build v3.13-final
07:49:22***Saving seen data "./dancer.seen"
07:52:22seth_powersWould you (or anyone else online) happen to know if the Opus seek/resume bugs are being dealt with? They've been around since v3.13, and changed form slightly in v3.14 (seeking causes kernel panic in the newest dev release)
07:53:14TorCThat's outside of my knowledge.
07:54:11seth_powersAlrighty. Thanks anyway!
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08:06:18 Join ender` [0] (
08:38:50 Quit duo8 (Ping timeout: 255 seconds)
08:39:42 Join duo8 [0] (~ZNC-SRV-H@
09:01:51 Join petur [0] (~petur@
09:01:51 Quit petur (Changing host)
09:01:52 Join petur [0] (~petur@rockbox/developer/petur)
09:03:54 Join wodz [0] (
09:19:38 Join terminalator [0] (~terminala@unaffiliated/terminalator)
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09:49:23***Saving seen data "./dancer.seen"
09:59:02 Join alce [0] (53f5e004@gateway/web/freenode/ip.
10:02:04gevaerts__builtin: well done!
10:35:27 Join alce_ [0] (53f5e004@gateway/web/freenode/ip.
10:35:59 Quit alce (Ping timeout: 260 seconds)
10:37:09alce_dbus-send −−system −−print-reply −−dest=org.bluez /org/bluez/1301/hci0 org.bluez.Adapter.CreatePairedDevice string:"XX:XX:XX:XX:XX:XX" objpath:/org/bluez/agent_1317 string:"NoInputNoOutput"
10:37:52alce_it seems it might be easy to find devices and pair with dbus
10:38:20alce_it is just that dbus c interface is quite confusing as it is
10:40:17alce_ implements media_unregister_endpoint which used dbus
10:40:53alce_i think this is the proper way to shut it down
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11:05:40 Join pamaury [0] (~pamaury@rockbox/developer/pamaury)
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11:49:26***Saving seen data "./dancer.seen"
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12:19:56 Part aphirst ("Leaving")
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13:48:54alcewodz: i found this
13:49:27***Saving seen data "./dancer.seen"
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13:59:00 Join akaSM [0] (bbbc43da@gateway/web/freenode/ip.
14:00:04akaSMso, this is where all the cool kids that use rockbox hang out, huh?
14:00:06 Join alce [0] (53f5e06b@gateway/web/freenode/ip.
14:01:36pamauryakaSM: this is the developer channel, there is also #rockbox-community for non-dev stuff
14:02:00gevaertsWell, developer and support
14:02:14akaSMI'm here to help wodz with some Rocker stuff
14:02:57gevaertsThat counts as development :)
14:03:59akaSMI hope he notices me before I have to go
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15:31:08wodzbah :/
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19:49:34***Saving seen data "./dancer.seen"
19:51:19 Quit pamaury (Ping timeout: 268 seconds)
19:58:21johnb3pamaury: (logs) here is the battery bench for the NWz-E474 :
20:03:25 Quit quaz0r (Ping timeout: 276 seconds)
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21:49:38***Saving seen data "./dancer.seen"
21:59:43 Join CheetahPixie [0] (55dc24c4@gateway/web/freenode/ip.
21:59:50CheetahPixieI bit the bullet and bought the thing.
22:00:09CheetahPixieThe Lenco Xemio 655 has popped up before in the IRC logs as another device; a fake iPod Nano.
22:00:26CheetahPixieInvestigating it, it is a Harvard architecture 8051-based processor.
22:00:52CheetahPixieWith 16 megabytes of RAM total, according to the datasheet, divided into two equal halves.
22:01:21CheetahPixieWhat I would then need is to find something that can work with the actual player type it is.
22:02:55CheetahPixieIt has 4 gigabytes of flash on it, which I am currently dumping.
22:03:06CheetahPixiePresumably, this space contains the system and everything else.
22:03:23CheetahPixieDoing some research, I figured the first two Nanos seem to have 32 megabytes of memory.
22:03:40CheetahPixieConsidering that their performance is ample, I'm pretty sure it could work on this device, but I don't know the minimum requirements.
22:03:42CheetahPixieSo what are they?
22:06:58Guest36376minimum requirements for rockbox?
22:07:19 Nick Guest36376 is now known as alexbobp (
22:11:41CheetahPixie This seems to be the CPU on board
22:14:34CheetahPixie For the flash chip, of which there is only one.
22:16:09CheetahPixieDumped. Now for a test compress of the file system.
22:18:35CheetahPixieThe only game on it, Snake, is so incredibly buggy that you can pause, mash buttons, unpause and instantly lose.
22:18:59CheetahPixieOr glitch the game and extend the snake (yes, just Snake clone) for as far as you are away from the furthest edge of the screen.
22:19:06CheetahPixieI would need to record it for you lads to understand.
22:19:21CheetahPixieThink I remember this thing having some boot ROM...
22:19:58CheetahPixie These guys haven't made a ton of devices...
22:20:08CheetahPixie is the one I am dealing with.
22:22:29CheetahPixieFirmware version thing gives two versions.
22:23:02CheetahPixie2015/07/27 1.1.00 and 2014/05/06 V7.02.B27
22:23:27CheetahPixieMemory info just displays free flash memory.
22:26:55CheetahPixieIt has a soft power off, and a hardware button.
22:27:05CheetahPixie(Which actually doesn't prevent powerups when charging. Useless crap.)
22:27:13CheetahPixieMaybe it's useful for a hold button in Rockbox?
22:27:31CheetahPixieHm. Holding Play shuts it down.
22:27:33CheetahPixieJust like an iPod.
22:28:03CheetahPixieIt has a microphone, however.
22:28:35 Join saratoga [0] (123e11e0@gateway/web/freenode/ip.
22:28:45CheetahPixieHas five buttons and one switch.
22:28:48CheetahPixieInteresting little bugger.
22:28:57saratogaCheetahPixie: what SOC does it use?
22:29:10saratogaif it is really 8051 derived, I don't think you will be able to do much
22:29:23CheetahPixieIt's some silly supercharged version of it.
22:29:56CheetahPixie16MB of Harvard style memory, too.
22:30:51CheetahPixieThis is a Flip80251 core.
22:31:05CheetahPixieSo a 16 bit 8051.
22:31:18CheetahPixieAdd in some more enhancements and performance buffs, and you have this little fucker.
22:31:55CheetahPixieInstruction set compatible with 80C51 and 8xC251.
22:32:19CheetahPixieOn chip PRAM...
22:32:35CheetahPixieTwo banks of 8K*8 DRAM, one of 2K*8.
22:32:56saratogayou'll need more CPU than that for rockbox unfortunately
22:33:00saratogaat least a real 32 bit CPU
22:33:03 Quit amayer (Quit: Leaving)
22:33:35CheetahPixieMulti purpose (22K+64)*8 memory
22:33:43CheetahPixiesaratoga: Are you sure?
22:35:05saratogano, but the documentation says "8/16 microcontroller" so I doubt its going to run a 32 bit operating system very well
22:35:12saratogayou could read though and see though
22:35:48saratogaunless you want to do an enormous amount of work though, I recommend sticking with an architecture that is already supported
22:35:57CheetahPixieI'm in this to learn.
22:36:10CheetahPixieI come in knowing absolutely nothing, and intend to fuck my head dry with this stuff until I get something that works.
22:38:51CheetahPixieSeems to be some 32 bit stuff in here too.
22:39:16CheetahPixie This is the processor core.
22:39:40 Join dandels [0] (~dandels@unaffiliated/dandels)
22:40:01CheetahPixieThe specifications on the SOC thing say it goes up to 80 MHz.
22:40:37CheetahPixie16 and 32 bit arithmetic and logical ops
22:40:39CheetahPixiethat's nice
22:41:26CheetahPixie"It includes a 16-bit ALU that allows to perform 8, 16 and 32-bit arithmetic and logic operations, an 8-bit multiplier and a parallel divider. It can also perform single bit manipulation. "
22:43:16 Join this_is_a_nick [0] (~amofiuhr_@
22:45:32CheetahPixieContacted them for an ISA ref.
22:55:08saratogai think it would be better to learn by picking an ARM device (preferably a well documented one) and working on that
22:55:30CheetahPixieMaybe. But I want to get into assembly, and I want to make a system.
22:55:32saratogaotherwise you're never going to get anywhere if this is your first experience doing embedded operating systems
22:55:35CheetahPixieI need this experience later.
22:56:03 Join jhMikeS [0] (
22:57:07CheetahPixieHell, I got to find an exploit first. (Which, considering how bug ridden this software is, is probably easy.)
22:57:21CheetahPixieAlso very few screws holding this together; precisely two.
23:11:31saratogafor low cost devices you probably don't need an exploit, they're not going to protect the firmware update process
23:22:21 Quit petur (Remote host closed the connection)
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23:44:50 Quit ender` (Ping timeout: 246 seconds)
23:49:40***Saving seen data "./dancer.seen"
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23:56:31 Quit MrZeus (Ping timeout: 256 seconds)

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