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#rockbox log for 2014-05-24

00:09:00***Saving seen data "./dancer.seen"
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01:06:35pamauryb0hoon: I have a new driver which works using the dvo and tft blocks, I just haven't committed yet
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12:44:25ulmutulI wonder how to program "audiohw_set_monitor()"
12:44:39ulmutulI have two possibilities here:
12:45:52ulmutul(1) mix the input to the headphone output (after the DAC), (2) loopback: ADC output is routed directly to DAC input, the external DAC signal is interrupted
12:46:29ulmutulAny opinion about that?
13:00:11pamauryulmutul: how is (1) implemented ?
13:01:12ulmutulBoth are possible settings for the audio codec.
13:01:57ulmutulSo just setting one bit or the other :)
13:02:13pamauryTell me if I'm wrong but (1) is analog -> analog, whereas (2) is analog -> digital -> analog ?
13:02:39ulmutulYes, but both entirely done by hardware.
13:02:49pamaurySo I guess (1) could be beter
13:03:17pamauryI mean (2) cannot be better quality-wise than (1) since in (1) the signal is basically not touched
13:03:32pamaury(at least for a reasonable implementation)
13:03:56pamauryAlso, maybe the hardware disable the ADC/DAC so you can save power
13:05:16ulmutulI think monitoring is only used for recording , so disablich the ADC wouldn't be a good idea :)
13:05:34pamauryit is used by the radio too
13:06:19pamauryon most targets, radio goes to line in, you can select between line in and mic, and with monitor you bypass ADC/DAC to go to HP output directly
13:06:23ulmutulHowever I didn't find any place where monitoring is enabled for the device (YH820).
13:06:39 Quit n1s (Quit: Ex-Chat)
13:07:17ulmutulYH820 has no radio (although there's one in the schematic, so maybe there are different versions)
13:07:45pamauryah ok, then indeed monitor is probably unused
13:09:36lebelliumthere is FM radio on some YH-820
13:10:10lebelliumI don't remember if I have it on mine
13:10:14lebelliumI should check
13:12:00pamaurybut the yh820 config file doesn't specify any tuner, so is it even supported by rockbox ?
13:12:37ulmutulNo, not supported yet.
13:15:02lebelliumI don't even remember how to boot OF
13:16:31ulmutulpress "MENU" (left)
13:18:18lebelliumah yes thanks
13:18:58lebelliumI have the FM menu with my firmware 3.00 ET but IIRC I have no FM tuner in hardware
13:19:47CtcpIgnored 1 channel CTCP requests in 0 seconds at the last flood
13:19:47*ulmutul getting a toothpick for the reset button (stuck at the samsung logo)
13:19:56lebelliumme too
13:19:58lebellium3 times
13:20:10lebelliumIt's really a bad player
13:20:41ulmutulWith rockbox I'm quite happy.
13:21:09lebelliumThe screen is aweful, it's slow, the 3.5 output is crappy
13:22:13ulmutulUse it outside in the sun, then the display really shines :)
13:23:07ulmutulIt's a transflective display, so it's usable outside.
13:23:41lebelliumI should put a fresh build on it to get cabbiev2
13:24:22ulmutulOne of my next tasks will be to make the backlight switchable to save battery power. Display on, backlight off.
13:24:58lebelliumthe most important would be battery monitoring I would say. But our latest attemps all failes
13:25:56ulmutulWorking on that also. The last attemp wasn't bad, just needed a different scale factor to give reasonable output.
13:26:18lebelliumI don't find the IRC logs again
13:26:31lebelliumbut someone here asked me to try some battery patches on my device
13:26:37lebelliumand that didn't work
13:27:12ulmutulThe battery ADC seems to clip at a certain point (let's call it 4.0V for now)
13:27:22ulmutulFor me it works :/
13:28:17lebelliumbut we already talked about that
13:28:21lebelliumI don't even remember
13:29:59ulmutulOh yes! BTW the audio dropouts were caused by the peakmeter.
13:30:40ulmutul(maybe the theme shouldn't be named "failsafe" :D)
13:31:34lebelliumhere's for FM radio:
13:33:48 Quit pamaury (Remote host closed the connection)
13:34:20ulmutulDoes your RTC work? I've two YH820, one works as expected.
13:34:34ulmutulThe other one shows "02:02" at startup.
13:35:24ulmutulIf I set the clock, the device get's unusable slow (but the OF worked normally)
13:35:43ulmutulI had to reset it by taking out the battery.
13:35:46lebelliumwell, mine is set at Feb 14, 2010 but I assume I can change it to 2014 :D
13:37:16lebelliumset at current time and date
13:37:19lebelliumseems to work
13:39:20lebelliumwhat are your versions?
13:39:29lebelliumI have YH-820MC/ELS
13:40:38ulmutulBoth YH-820MC/ELS
13:41:07 Quit krnlyng_ (Quit: huiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii)
13:41:13ulmutulBut they have different board revisions (just searching my fotos...)
13:41:50lebelliummine was built in 2005/08 but I don't know what is the board revision
13:42:18lebelliumI guess I already disassembled once but I have no pic
13:43:18ulmutulOne says "Ver. 0.17" on the PCB (build 2005/04), the other "Ver. 2.0" (build 2005/10)
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13:43:46ulmutulThe older is the one with the RTC issue
13:43:54lebelliumthat's interesting
13:44:53ulmutulThe boards however are rather similar, no difference at first glance.
13:45:43lebelliumI see some pics here
13:45:49lebelliumbut nothing for YH-820
13:46:27lebellium0.17 is a strange versioning however. Looks like "beta"
13:47:43ulmutulThe old one is currently "working" on my kitchen table. Battery output (with my tweaks) say 3.592V, my multimeter says 3.67V. Not super accurate, but something you can work with.
14:00:47 Join b0hoon [0] (4e58386c@gateway/web/freenode/ip.
14:02:58b0hoonpamaury: cool...i'll see how it works when you will commit it.
14:03:35pamauryb0hoon: at the moment my problem is that I used register headers generated using my tools
14:03:50pamauryI don't really want to use the ones coming from pp502x.h, which are crap
14:04:31b0hooneverything is everywhere
14:05:26pamaurymaybe I'll post it to gerrit so you can see
14:08:05pamauryalso there many hardcoded registers everywhere in the pp source code, that's a huge mess
14:09:07b0hoonulmutul: I didn't met up with the YH-820 that has a radio. Mostly there is a place on the mainboard for it, but it is unoccupied.
14:09:19***Saving seen data "./dancer.seen"
14:12:24ulmutulSo radio support has to done by someone else :P
14:15:51b0hoonThere is currently no radio support for all YHs.
14:16:29b0hoonAnd the battery measure doesn't work at all on YH-820
14:16:52b0hoonit's on constant level
14:17:48ulmutulHm, mine is working. I tweaked a bit around the scale factor, but it works on both of my YH820 :/
14:18:48ulmutulAnd yes, it was set at a constant level because it was reported to not work properly at some time.
14:20:02b0hoonthat's impossible unless you have changed this: f=firmware/target/arm/samsung/yh820/powermgmt-yh820.c">;a=blob;f=firmware/target/arm/samsung/yh820/powermgmt-yh820.c
14:21:58ulmutulYes, I've changed it. I'm doing measurements at the moment. Current readout (with my tweaks) 3.567V. My voltmeter says 3.63V.
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14:30:15kugeli have a yh925. does that have a radio?
14:32:05b0hoonulmutul: OF substracts something from ADC ( i think it was 0x20), depending on PLL_CONTROL, like in case of HDD1630 and HDD6330
14:33:24b0hoonkugel: same case like YH-820, mostly there is an empty place for it on the mainboard
14:35:27ulmutulb0hoon: rockbox even adds something to the ADC (I wondered how it is possible to get values >10 bit) :)
14:35:29ulmutulIt's added at startup if you have a HDD target.
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14:53:52b0hoonulmutul: it's in the adc_scan(), it adds it for every scan, values may be low so it doesn't have to be over 10 bits
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15:14:47b0hoonulmutul: i have the YH-820MC/ELS version too, no radio for sure
15:16:17ulmutulThey broadcast stupid things anyway... ;)
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16:24:20powerage88Hi all, on the wiki it mentions the best way to get a review is to ask on irc. So if anyone has any free time and could review I'd be very grateful.
16:24:28powerage88It's some updates to disktidy.
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20:54:30dir14hello, my clip+ is bricked, so i try used SansaAMSUnbrick. When i connected, my drive have 30MB, so flash is broken? :)
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23:05:25fs-bluebotBuild Server message: Build round completed after 380 seconds.
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23:34:57theunamedguyDoes anyone know of an atexit() alternative in Rockbox plugins?
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