ATA error: -2 at boot after updating Sansa Clip+ (dev builds)

[saratoga]

Let me know if 23 has any problems, I will commit if it's OK.

Could just be a little weaker flash memory chip.

[qorx]

I put my settings back on and got a panic, I'll have to check if it's the EQ...

[saratoga]

That was with 23?

[qorx]

Yes it was.

[saratoga]

Sounds like 24 might be needed then.  I just want to be careful since this will decrease everyone's battery life by a little bit, but if devices are occasionally crashing, it should be fixed.

[qorx]

I've been trying to reproduce the error again because it occurred a few times earlier but then I reset and started playing with the settings one at a time, enabled/disabled EQ, changed themes and it's holding up.
Let me test it for consistency some more before you commit.
I'm with 23-voltage and noticed that CVVD2 now goes even lower/higher, it goes to 26xx something and 2730. CVDD1 is also lower than the previous picture I've uploaded, it's between 895/950 with peaks reaching 1xxx something (can't read it as it's too fast).

If it fails again with ata error -2 and/or *panic*, I'll go to 24-voltage and see if it's more stable. 

[qorx]

saratoga, here's my findings:

23-voltage isn't stable enough for my player, it runs fine once, then it gives an error, then it runs fine, I've to reset and reinstall so it isn't usable.
24-voltage so far looks stable, so it may be the minimum for this player.

I've another Clip+ (a refurb) which was running a build from 2015, so prior to the frequency and voltage scalling patches.. Yesterday I updated it to rev 0f89b04 and runs stable and don't share any of the symptoms of the other one.

An issue I see on both players is a ~15sec delayed boot time showing the rockbox logo if a card is inserted, if I remove the card and boot again all is normal.
As for boot settings, I've both set up to boot right to the wps screen (Resume Playback)
The card is a 128GB if it means anything...

[qorx]

New update regarding the Clip+ with errors.

So, since running 24-voltage for a few days without any issues, it all come back again but happens randomly.
Installed build with 25-voltage and same thing, sometimes runs normally, sometimes error. I reset it and boot again, error... reset and boot again, error... boot into OF, shutdown and boot rockbox, no error... shutdown and boot again, error...
Guess I need to forget about voltage scaling with this unit..

[Mihail Zenkov]

Probably we should try also rise CVDD2 ( 0x80 | 115) with CVDD1=25.

[qorx]

Mihail, I can test it if you want.

[Mihail Zenkov]

Ok, try this: http://knk.square7.ch/rockbox-clipplus_25_115.zip

[qorx]

Thanks, will test and report back.

[Djudge_Katt]

I'll be following this
I've run in to the exact same problem
I'm not much of a tester though; I wouldn't be knowing what I was doing xD
But know.. That you will have helped me too

[qorx]

Mihail, since the day you posted the build to today, I had only 2 occurrences of the ata error -2 at boot, one was the first time I installed your build and the second yesterday, but with both it was just a matter of resetting and boot again without problems, so it's more stable for sure.


Djudge_Katt, good to know I'm not the only one running into this issue. Thanks for reporting it.

[Mihail Zenkov]

Good, new build for test: http://knk.square7.ch/rockbox-clip_plus_25_116.zip