SanDisk Sansa c200v2, m200v4, clipv1, clipv2, clip+, and fuzev2

[funman]

I have a put a patch for set_cpu_frequency() : FS#11297

It doesn't work.

And who can edit FS#11267, especially the title and description? Me not.

If you have comments related to the ticket please add them on flyspray.

I own a Clip+ and am using 26179 and it looks like the USB charging is broken. I tried it on my PC and the screen blacked out with no music. The wall charger does not seem to work either (same problem).

If you use a current build with Clip+ it will try to reboot to OF on USB plug, but with current mkamsboot it will fail and power off the Clip+
So you should:

• Reinstall the bootloader (the last bootloader will work) with a mkamsboot build from SVN or wait for a new mkamsboot release.

Did you follow these instructions? Charging works fine for me.

[athatai]

funman,

Thanks for the suggestion. I'll try that later tonight. I simply did not connect the dots Now I understand...

[Jennifur]

Updated patch FS#11288 for fixing scroll wheel lockup after 20 minutes.
Should work, please test when you have time. 

The patch works perfectly. I've yet to have the scroll-wheel freeze now. Thank you so much.

Also, ran the battery bench. Got about the same runtime as the OF.

[thor777]

Does anyone else notice hissing in their Rockboxed C200v2 with sensitive headphones? It's always present, even during playback. The original firmware C200v2 doesn't hiss, and neither did the C200v1 OF or Rockboxed.

I'm noticing hiss on my rockbox'd Fuze v2 as well.  I'm using RE0s and r26155.  This happens whether it's directly connected to Fuze HP or through my Cmoy amp.  The hissing starts at around -10db and it's really apparent at 0db.  I can get around this by turning up the pre-amp from replay-gain and lowering the volume within Rockbox, so it's not a really big deal for now....but the OF (v02.03.31) does not have any hiss even when I turn the volume to max (on Fuze and/or on amp).

[funman]

My clipv2 have much more hiss than my Clip+ and Fuzev2.

Using FS#11297 I noticed that it is different (lasts less longer but happens more often) when the CPU is boosted, and it also seems different with 24MHz or 40MHz CPU clock.

It's absent when listening to FM radio.

[csavery]

I can't hear any hiss on my Fuze v2 even at loud volumes.
Is it possibly codec dependent. I'm using mp3 (@320).
I do get clicks when play changing events occur like pause, resume, stop, shutdown.
Shutdown clicks even if play already stopped.

[markun]

I made some changes to try to improve the audio quality of Clipv2, Clip+ and Fuzev2. I personally don't hear any difference on my Clip+ but maybe it helps for some of you:

http://www.rockbox.org/tracker/task/11304

[Xanikseo]

New OF 02.03.33 has been released for fuzev2. For those who cba/don't know how to compile from svn:
new linux (64-bit) mkamsboot binary. EDIT2: PM me if you want a prepatched firmware.

EDIT:  I appreciate your effort but we are not authorized by Sandisk to distribute the OF.  This is the reason that you have to download & provide your own copy to mkamsboot when you patch your firmware.  Please do not post links to patched firmware on the forums.

[Vague Rant]

I believe patched firmwares are not linked on purpose; while they're made freely available online, they presumably are not released under any sort of open license, and so modified versions can't be released by third parties legally. To be honest, they're not likely to care or do anything about it, but Rockbox does everything it can to remain 100% above-board.

[Xanikseo]

I offer it at my own risk. If sansa want me to remove it, then I will!

[Jennifur]

New OF 02.03.33 has been released for fuzev2. For those who cba/don't know how to compile from svn:
new linux mkamsboot binary

EDIT:  I appreciate your effort but we are not authorized by Sandisk to distribute the OF.  This is the reason that you have to download & provide your own copy to mkamsboot when you patch your firmware.  Please do not post links to patched firmware on the forums.[/url]

You should let people know the mkamsboot binary you provide is for 64bit systems.

[csavery]

I just compiled a new mkamsboot. It's not working due to a new model_id of 0x71.
Looking at the code I see the new version 2.03.33 is in the list but the 0x71 model_id isn't there.
Are we expected to add this id ourselves or what is the trick to getting a working mkamsboot?

[Jennifur]

I just compiled a new mkamsboot. It's not working due to a new model_id of 0x71.
Looking at the code I see the new version 2.03.33 is in the list but the 0x71 model_id isn't there.
Are we expected to add this id ourselves or what is the trick to getting a working mkamsboot?

What model of Sansa?

I have a FuzeV2 and the SVN version works just fine for me. I grabbed the V2.0 boot loader from a few pages back. The firmware from Sansa, and compiled mkamsboot from the SVN. If you want, you can PM me and I can upload it somewhere for you.

[csavery]

Sansa Fuze v2
I'd like to be able to build myself from svn. I have r26239 just checked out.
My fuzpa.bin file has model id 0x71 at location 0x219 - I checked with hex viewer.
So mkamsboot is correctly saying it's not known mode id.
I could add the 0x71 model id to the table in mkamsboot but I don't want to make a bad firmware image by mistake.

edit - just checked out 26241 but no change in mkamsboot.

Is there more than one version of mkamsboot in svn? I am compiling the one under rbutil/mkamsboot.

[Jennifur]

Sansa Fuze v2
I'd like to be able to build myself from svn. I have r26239 just checked out.
My fuzpa.bin file has model id 0x71 at location 0x219 - I checked with hex viewer.
So mkamsboot is correctly saying it's not known mode id.
I could add the 0x71 model id to the table in mkamsboot but I don't want to make a bad firmware image by mistake.

edit - just checked out 26241 but no change in mkamsboot.

Is there more than one version of mkamsboot in svn? I am compiling the one under rbutil/mkamsboot.

I'm looking through mkamsboot.c now, and the code is indeed there.

Code: [Select]

    { MODEL_FUZEV2, "2.01.17", "8b85fb05bf645d08a4c8c3e344ec9ebe" },
    { MODEL_FUZEV2, "2.02.26", "d4f6f85c3e4a8ea8f2e5acc421641801" },
    { MODEL_FUZEV2, "2.03.31", "74fb197ccd51707388f3b233402186a6" },
    { MODEL_FUZEV2, "2.03.33", "1599cc73d02ea7fe53fe2d4379c24b66" },
};

Using SVN version 26241.