Sansa Clip Zip

[2facedmayor]

2facedmayor, for the Visionox display (which I have myself), I noticed that blue and red were swapped, can you check if this is the case for your display too? To check, go to Settings / Theme Settings / Colours / Background Colour and verify that the top bar (R) is indeed red, and that the bottom bar (B) is indeed blue.

Also, I may have made an error in the lcd initialisation sequence, I can double-check that.

The R, as you had surmised, is being displayed as blue, and the B is red. The display colors are still swapped on my player.

[bertrik]

The R-B swap should be easy to fix.
Can you join the #rockbox IRC channel on freenode.net around 20:00 UTC? I'll probably be on around that time and can send you a firmware that should fix the colour swap.

[2facedmayor]

The R-B swap should be easy to fix.
Can you join the #rockbox IRC channel on freenode.net around 20:00 UTC? I'll probably be on around that time and can send you a firmware that should fix the colour swap.

Afraid not, as I work at that time. Instead, I'll send you a PM with my e-mail address and you can send me the firmware. I can respond ASAP.

[bertrik]

I fixed the blue-red swap. I also added a check in lcd_enable to prevent re-enabling the display when it is already enabled, this should prevent the flickering.

I still don't know where the playback delay comes from, I had this problem in the very early stages of the port, but it mysteriously vanished when I enabled album art and jpeg support.

[2facedmayor]

As you say, the R-B swap and flickering are now fixed on my player using the newest build (30922).

One thing I noticed about the track skip delay on my player--if I navigate out of the "Now Playing" screen, by using the back-arrow button for example, the track starts right away. Not something I want to be habitual, but maybe a clue as to the source of my problems.

[2facedmayor]

Update: Not sure why I didn't think of this before, but I turned on the directory cache and that completely solved the track delay issue. I understand this has helped a few people having the same issue on different players with Rockbox.

[TexasRockbox]

Actually, the colour problem and the playback delay problem should both be fixed now.
Album art colours seem a bit washed out, but that's just a hardware limitation I think.
(Although maybe we can adjust gamma for to adjust the subjective contrast?)

The Clip Zip can have two different kinds of display, so far we've seen only the Visionox type (visible in the diagnostics menu of the original firmware flashed with a 'T' suffix). The other kind (WiseChip) has not been seen yet 'in the wild', but there is a driver for it. If/when the newer display type shows up, it will probably not work completely right.

I would *love* for the screen to be calibrated better (as compared to the OF).  I've gone back and adjusted the contrast and gamma of embedded .jpgs and the Clip Zip display of album art looks so much better with deeper colors.  I suspect the problem may a 1-255 vs. 16-235 brightness levels.  I would think the Clip should be 1-255.

Use color bars as a test:



note in the lower right corner -- there are three small bars -- one is blacker than black, one is black and other is just above black.  The blacker than black should be absolutely black and should be just as dark as the black next to it.  Only the third bar should be slightly visible.

[Per]

I have been looking around here, but where do i get informations do get/compile the bootloader?
I found the rockbox build.
Can someone please help me? Thank you!

[trein]

Hello.

I've got Rockbox build 30968 on my Clip Zip. So far, so good -- thanks for all the hard work you all have put in.

As I understand the situation with USB mass storage support, that does not work on the Zip and its close relatives the Clip and Clip+ when booted into Rockbox. I've seen some mention of a patch for (I think) the Clip+ which would allow it, but that capability has been turned off by default, because it's unstable when the device is connected to a Windows computer.

Since my Zip will probably never be connected to anything but a Linux computer, the Windows issues don't bother me. Does anyone know if this patch actually exists, and if so, if it can be applied when building the Zip? And if so, could someone please give me some pointers on how to apply it? I've figured out how to set up the build environment, and build the Zip firmware, but I'm pretty hazy yet on how to modify it.

Thanks.

Tony

[saratoga]

I have been looking around here, but where do i get informations do get/compile the bootloader?

http://www.rockbox.org/wiki/DevelopmentGuide

Then at the configure step, when prompted choose bootloader instead of main build.  And in the future if you just have questions about compiling, use the "Starting Development and Compiling" rather then a development thread.

Since my Zip will probably never be connected to anything but a Linux computer, the Windows issues don't bother me. Does anyone know if this patch actually exists, and if so, if it can be applied when building the Zip?

Uncomment the USE_ROCKBOX_USB line here:  http://svn.rockbox.org/viewvc.cgi/trunk/firmware/export/config/sansaclipzip.h?revision=30970&view=markup

Expect a lot of file system corruption though. 

[trein]

Thank you for the prompt reply and instructions on enabling USB mass storage!

Your warning re filesystem corruption is appreciated -- I will back up!

Enjoy the rest of the weekend.

Tony

[funman]

It would be interesting to know if the Clip Zip has the same problems with USB than the other AMSv2 (Fuzev2, Clipv2, Clip+)

[trein]

I have uncommented the "USE_ROCKBOX_USB" line in sansaclipzip.h, per Saratoga's instructions from November 13, and rebuilt rockbox. After about five days, I can say that so far it's working OK. I have not had any filesystem corruption, but that's probably only a matter of time. The only anomaly I've found is that it won't get recognized properly when it's plugged into a USB hub -- it apparently needs to be plugged directly into my laptop's USB port.

I use Linux on my laptop, not Windows. I have no idea if this would work with Windows; in fact, I remember a posting somewhere that said that it wouldn't.

Tony

[andrew3199]

It's been a while since an update but any news on getting Rockbox to work on the "Clip Zip"

[yapper]

It's been a while since an update but any news on getting Rockbox to work on the "Clip Zip"

Please see item 4) in this post: http://forums.rockbox.org/index.php/topic,21176.0.html