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Rockbox Ports are now being developed for various digital audio players!

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Author Topic: Sansa e200 Flash RAM  (Read 5897 times)

Offline redblade8

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Re: Sansa e200 Flash RAM
« Reply #15 on: April 29, 2010, 02:12:47 PM »
Quote from: AlexP on April 29, 2010, 06:27:59 AM
Quote from: soap on April 28, 2010, 08:59:06 PM
Directory Cache ?
Might very well increase UI responsiveness.


Indeed, but that is on/off - no value setting anywhere.  I think this is destined to remain a mystery )

I remembered where I changed it originally, it was in debug ( keep out! ) lol  it is not there right now... ( maybe I smoked something funny that day or something even though I don't smoke, haha ) But ja, it doesn't seem to exist or anything or such. It was some sort of RAM value that I could change, and make biggeer...
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Offline saratoga

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Re: Sansa e200 Flash RAM
« Reply #16 on: April 29, 2010, 02:17:38 PM »
Quote from: redblade8 on April 29, 2010, 02:12:47 PM
I remembered where I changed it originally, it was in debug ( keep out! ) lol  it is not there right now... ( maybe I smoked something funny that day or something even though I don't smoke, haha ) But ja, it doesn't seem to exist or anything or such. It was some sort of RAM value that I could change, and make biggeer...

The debug screen values aren't configurable from the debug screen, so you were probably just looking at one of the internal rockbox buffers which continually change on their own as audio is decoded. 
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Offline redblade8

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Re: Sansa e200 Flash RAM
« Reply #17 on: April 29, 2010, 03:08:21 PM »
Naw, it was a value that I could change specifically. I could change its value and make it higher of a value , or lower. Default setting was around 256MB. Then again, I could be wrong about it being in the debug section. I don't really know...This doesn't really seem to exist...(anymore..?)
Hmm...I have given up on this topic =s   I am sure I dreamed it up or something...( haha, unless I go back in time to my sisters hockey tourney in Kelowna, and go to the hotel we were staying at to see exactly what I did, and what I was changing...then I will probably never find it again =P )

I recently changed my e200's processor from 30mhz , 0 boost,  to 80 mhz 18 boost. Is that recommended? Am I screwing myself over?

- any difference between a e200 v1, and rhapsody edition? ( ones faster, slower, has more of this or that...?Any thing like that?) just wondering...
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Offline gevaerts

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Re: Sansa e200 Flash RAM
« Reply #18 on: April 29, 2010, 03:12:37 PM »
Quote from: redblade8 on April 29, 2010, 03:08:21 PM
I recently changed my e200's processor from 30mhz , 0 boost,  to 80 mhz 18 boost. Is that recommended? Am I screwing myself over?

If you have to ask, you probably shouldn't touch anything in the debug screen. The "Keep out" is not there as a joke.
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Offline redblade8

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Re: Sansa e200 Flash RAM
« Reply #19 on: April 29, 2010, 03:18:44 PM »
I suppose. But I also did not notice any difference in how my MP3 is working or anything...
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Offline gevaerts

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Re: Sansa e200 Flash RAM
« Reply #20 on: April 29, 2010, 03:21:01 PM »
Quote from: redblade8 on April 29, 2010, 03:18:44 PM
I suppose. But I also did not notice any difference in how my MP3 is working or anything...
Then you didn't observe it properly. The battery probably emptied a lot faster
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Offline redblade8

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Re: Sansa e200 Flash RAM
« Reply #21 on: April 29, 2010, 03:25:43 PM »
That would make sense, but  yes I was checking the battery ( its useful to know how long you have until your MP3 dies...) It didn't change really...
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Offline soap

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Re: Sansa e200 Flash RAM
« Reply #22 on: April 29, 2010, 03:27:54 PM »
Quote from: redblade8 on April 29, 2010, 03:25:43 PM
That would make sense, but  yes I was checking the battery ( its useful to know how long you have until your MP3 dies...) It didn't change really...
That is an estimated runtime calculated from current battery voltage and a typical discharge curve.  If you increased the boost then the "typical" discharge curve coded into Rockbox will not fit your use case and the estimated runtime calculation will be wrong.

Now, it will count down faster than normal (something easily not seen casually) as the battery voltage drops faster than normal - but even as current draw doubles the estimate won't drop 50%.
« Last Edit: April 29, 2010, 03:29:29 PM by soap »
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Offline Llorean

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Re: Sansa e200 Flash RAM
« Reply #23 on: April 29, 2010, 03:29:24 PM »
The "predicted remaining time" won't change, since that's based off of normal settings.

Your player automatically boosts for short periods when it needs to - turning it on all the time guarantees that your battery life will decrease unless for some reason you're always playing file formats it's too slow to decode even when boosting (something you wouldn't do, because your player would always be skipping).
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Offline redblade8

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Re: Sansa e200 Flash RAM
« Reply #24 on: April 29, 2010, 03:46:56 PM »
Quote from: Llorean on April 29, 2010, 03:29:24 PM
The "predicted remaining time" won't change, since that's based off of normal settings.

OH? That just sounds like a bug to me. When I had my e250 with rockbox on it, the remaining time ALWAYS would change every couple of seconds...so it was ALWAYS accurate ( my one with rockbox on it now doesn't do that...)

Quote
Your player automatically boosts for short periods when it needs to - turning it on all the time guarantees that your battery life will decrease unless for some reason you're always playing file formats it's too slow to decode even when boosting (something you wouldn't do, because your player would always be skipping).
Hmm...is that why the gameboy game I downloaded was skipping alot...( well the sound was, and I changed it so that the max skip frame rate was 6, so that sped up my FPS, and made the music sound better in the game , but it still was skipping slightly...
When my processor boots itself ( with no boost, just the default 30MHZ), does it go from the default 30MHZ to 80MHZ? I'd like to have my processor at 80MHZ all the time, but no 'boost' all the time that drains my battery a bit faster, is that possible?


Fixed quote tags --Chronon
« Last Edit: April 29, 2010, 05:13:51 PM by Chronon »
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Offline Llorean

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Re: Sansa e200 Flash RAM
« Reply #25 on: April 29, 2010, 03:48:22 PM »
"Boost" just means going to 80mhz. Being at 80mhz drains your battery faster. Gameboy games will always play at 80mhz, because that's the only situation in which your player is close to being fast enough.

There is no such thing as 80mhz without "boost" since it's just a term for when we set the processor to its faster speed.
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Offline AlexP

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Re: Sansa e200 Flash RAM
« Reply #26 on: April 29, 2010, 07:16:32 PM »
Quote from: redblade8 on April 29, 2010, 03:46:56 PM
Quote from: Llorean on April 29, 2010, 03:29:24 PM
The "predicted remaining time" won't change, since that's based off of normal settings.

OH? That just sounds like a bug to me. When I had my e250 with rockbox on it, the remaining time ALWAYS would change every couple of seconds...so it was ALWAYS accurate ( my one with rockbox on it now doesn't do that...)

How is it a bug?  We don't expect people to deliberately decrease their battery life by pointlessly forcing the processor to full speed when it doesn't need to be.
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Offline redblade8

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Re: Sansa e200 Flash RAM
« Reply #27 on: April 30, 2010, 02:12:03 PM »
Quote from: AlexP on April 29, 2010, 07:16:32 PM
Quote from: redblade8 on April 29, 2010, 03:46:56 PM
Quote from: Llorean on April 29, 2010, 03:29:24 PM
The "predicted remaining time" won't change, since that's based off of normal settings.

OH? That just sounds like a bug to me. When I had my e250 with rockbox on it, the remaining time ALWAYS would change every couple of seconds...so it was ALWAYS accurate ( my one with rockbox on it now doesn't do that...)

How is it a bug?  We don't expect people to deliberately decrease their battery life by pointlessly forcing the processor to full speed when it doesn't need to be.

Thats not what I meant =P
lol re-read what I said. I was saying that I used to have rockbox installed on my e250 like 2 years ago, and the remaining time ALWAYS changed every couple of seconds(going up and down in battery time remaining). Now, on my e280, it doesn't change that much anymore...that sounded like a bug to me, since it doesn't give as accurate of battery time remaining anymore...

--kk, that makes sense Llorean...but if I have my processor at 30MHZ, does that mean when I play a gameboy game, it will automatically go to 80MHZ? ( and when it needs to, it will automatically go to 80MHZ? )
« Last Edit: April 30, 2010, 02:16:42 PM by redblade8 »
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Offline saratoga

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Re: Sansa e200 Flash RAM
« Reply #28 on: April 30, 2010, 03:36:04 PM »
Quote from: redblade8 on April 30, 2010, 02:12:03 PM

Thats not what I meant =P
lol re-read what I said. I was saying that I used to have rockbox installed on my e250 like 2 years ago, and the remaining time ALWAYS changed every couple of seconds(going up and down in battery time remaining). Now, on my e280, it doesn't change that much anymore...that sounded like a bug to me, since it doesn't give as accurate of battery time remaining anymore...

Your new battery is probably older now then the one you had 2 years ago.

Regarding gameboy games, look at Llorean's post where he explained that.
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Offline redblade8

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Re: Sansa e200 Flash RAM
« Reply #29 on: May 01, 2010, 08:41:23 PM »
Quote from: saratoga on April 30, 2010, 03:36:04 PM
Quote from: redblade8 on April 30, 2010, 02:12:03 PM

Thats not what I meant =P
lol re-read what I said. I was saying that I used to have rockbox installed on my e250 like 2 years ago, and the remaining time ALWAYS changed every couple of seconds(going up and down in battery time remaining). Now, on my e280, it doesn't change that much anymore...that sounded like a bug to me, since it doesn't give as accurate of battery time remaining anymore...

Your new battery is probably older now then the one you had 2 years ago.
Oh...ok
Regarding gameboy games, look at Llorean's post where he explained that.
He has alot of post's =P I cannot find it =P
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