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Iriver H120: Volume knob on remote skipping directories
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Topic: Iriver H120: Volume knob on remote skipping directories (Read 7789 times)
StigVig
Member
Posts: 6
Iriver H120: Volume knob on remote skipping directories
«
on:
October 26, 2006, 04:15:01 PM »
Hi
First of all I'd like to thank all the developers for making such a fine firmware! And then to the annoyance. I've been experiencing the same behaviour as mentionned in
http://forums.rockbox.org/index.php?topic=4751.0
, ie sometimes while trying to change the volume on the remote, the player skips to the next directory. My question is if there is a known workaround for this?
Thanks in advance
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bonusbartus
Member
Posts: 21
Re: Iriver H120: Volume knob on remote skipping directories
«
Reply #1 on:
November 01, 2006, 06:11:30 AM »
I've got the same problem a while back, I ordered a new remote and that fixed the problem, the cable was damaged near the plug....
check if you can see some damage there, try to bend the cable on a few pleces and try changing the volume then..
good luck
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StigVig
Member
Posts: 6
Re: Iriver H120: Volume knob on remote skipping directories
«
Reply #2 on:
November 02, 2006, 02:04:56 PM »
Thanks for the response, even though it wasn't the response I was hoping for
However I'm under the impression that it doesn't happen while running the original Iriver firmware. Hmm, I will run the Iriver firmware for the next few days and see if I encounter any anomalities in order to rule out a fawlty remote control.
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Rincewind
Member
Posts: 266
Re: Iriver H120: Volume knob on remote skipping directories
«
Reply #3 on:
November 07, 2006, 08:19:49 AM »
I also got this behaviour when I used my remote. I don't think it has something to do with the cable, I didn't use my remote much.
I haven't tested it with a recent build (I stopped using the remote when I got better headphones).
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Iriver H120, Sansa e280
Llorean
Member
Posts: 12931
Re: Iriver H120: Volume knob on remote skipping directories
«
Reply #4 on:
November 07, 2006, 11:29:17 AM »
I've never gotten that behaviour. I've broken 3 remotes, and am currently on my fourth (the cables get snagged, I'm bad about that) but I've not had the problem.
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Multiplex
Member
Posts: 440
Re: Iriver H120: Volume knob on remote skipping directories
«
Reply #5 on:
November 08, 2006, 08:25:14 AM »
The buttons on the remote are read using a single wire (except hold and start) - each button has an associated resistor and when the button is pressed the voltage is decoded to determine the button - see the bottom of
http://www.rockbox.org/twiki/bin/view/Main/IriverHardwareComponents
for a full explaination
It is highly likely that the stock firmware and Rockbox have slightly different cut-off points between the buttons - that is maybe why the iRiver FW is OK, particularly if through damage, poor connection or aging your unit is reporting voltages a bit different from the ones the Rockbox developers found when they workerd this out.
Assuming that your unit produces distinctly different values for each buton it aught to be theoretically possible to patch the code that handles buttons to match your unit - it would be a fun and practical way of getting into Rockbox development ...
I recomend the VMWare image with all the development environment setup for a starting point ...
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Llorean
Member
Posts: 12931
Re: Iriver H120: Volume knob on remote skipping directories
«
Reply #6 on:
November 08, 2006, 08:56:35 AM »
Actually, the interesting thing is, I ran at least one person reporting this problem through a test of the reported values from the remote on the debug screen, and they got identical ones to me.
This could still be a bug in the code, or it could still be a common hardware issue. =/
Logged
Multiplex
Member
Posts: 440
Re: Iriver H120: Volume knob on remote skipping directories
«
Reply #7 on:
November 08, 2006, 12:41:32 PM »
Yeah, I'm no where near the source right now to be able to see what the changeover values are so didn't go explaining the debug menu to read the values for verification.
I can't honestly understand how if a machine is reporting the same values as yours it behaves differently (assuming same build of Rockbox) but as already said I've not read that bit of code. Curiosity may get the better of me later ...
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Rincewind
Member
Posts: 266
Re: Iriver H120: Volume knob on remote skipping directories
«
Reply #8 on:
November 08, 2006, 02:13:11 PM »
Maybe the voltage levels for split directory and volume are very narrow together, so in some cases the a/d converter gets it wrong.
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Iriver H120, Sansa e280
Llorean
Member
Posts: 12931
Re: Iriver H120: Volume knob on remote skipping directories
«
Reply #9 on:
November 08, 2006, 02:14:27 PM »
Well, the values were the same, but that doesn't mean they're the same *every* time. Just the times tested. That's unfortunately part of the difficulty.
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Mmmm
Developer
Member
Posts: 922
Re: Iriver H120: Volume knob on remote skipping directories
«
Reply #10 on:
November 09, 2006, 01:26:13 PM »
It may also be that the instant the button is pressed gives a different value to the button being held. Maybe the pressed button value is so quick you don't see it....
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My H120 build with Recording Enhancements Pack
Some examples of recordings done on H140 with Rockbox
Llorean
Member
Posts: 12931
Re: Iriver H120: Volume knob on remote skipping directories
«
Reply #11 on:
November 09, 2006, 01:29:52 PM »
That too is possible. There are a wide range of possibilities.
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fairf
Member
Posts: 4
Re: Iriver H120: Volume knob on remote skipping directories
«
Reply #12 on:
November 10, 2006, 04:29:11 AM »
At Last! I though I was going mad, I've had this problem for ages.
I eventually went back to the iRiver firmware for a day and could not replicate the fault at all, so I updated to a new build (CVS-061019; I can't remember the one I was using previously), and this has nearly cured the problem, although I still get it occasionally.
It seems to occur if the volume button is pressed in the same direction twice or more in quick succession, as you would tapping to increase volume in steps. Being a bit less fidgetty and holding the button does not appear to cause a directory skip.
I was wondering if this habit of mine means the electrical contact is not properly formed, and the signal getting to the player is a bit noisy, resulting in a mis-decoded signal... or maybe not, I'm not so good with the electronics stuff.
At least it's not just me, or not just my player. Hopefully we can find a solution to this.
J
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Multiplex
Member
Posts: 440
Re: Iriver H120: Volume knob on remote skipping directories
«
Reply #13 on:
November 12, 2006, 04:05:50 AM »
OK, I've looked at the code and its possible to tweak the decoding.
The only question is; patch for an individual machine or try to collect enough information to do a general fix(if required) ?
Anyhow I'll need to know what readings folks are getting for the following remote button presses;
Stop
Vol Down
Mode
Vol Up
Bitrate
Record
Source
Fast Forward
Menu
Rewind
You get them from; Manin Menu: Info > Debug (keep Out) > View I/O ports > and its the ADC_Remote line that you should see changing as you press buttons - exit the menu by the rewind button (so how did the devs work out how to map that button ;-)
I can't give the figures from our H120 as its flat and the charger is at work ...
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StigVig
Member
Posts: 6
Re: Iriver H120: Volume knob on remote skipping directories
«
Reply #14 on:
November 12, 2006, 09:52:15 AM »
Hi there!
Well, after having exclusively run the original firmware for a week I can affirm that it is probably due to a hardware problem with the remote. I did experience some strange things while trying to change the volume, but it happened only once, whereas with Rockbox it happens at least once every "session" (not very specific, I know
). So it seems that the Iriver firmware is more robust, perhaps something can be done in Rockbox as well.
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