Rockbox Development > New Ports
SanDisk Sansa c200v2, m200v4, clipv1, clipv2, clip+, and fuzev2
ej0rge:
If a developer is looking for a c200v2, send me a PM - I found one in a box of 15 broken c250's and I am willing to part with it. I just need to fix the headphone jack first, maybe re-pot the board in a case that is less damaged.
FlynDice:
For any e200v2 users who are comfortable changing the frequency settings I have found that changing the frequencies in funman's latest mmu patch at FS#10048 to DRAM=PCLK=31 and DBOP = PCLK/1 solves a whole lot of problems for us right now until things get tested more! LCD works fine with these settings!
#define AS3525_FCLK_FREQ 248000000 /* Boosted FCLK frequency */
#define AS3525_DRAM_FREQ 31000000 /* Initial DRAM frequency */
/* AS3525_PCLK_FREQ != AS3525_DRAM_FREQ/1 will boot to white lcd screen */
#define AS3525_PCLK_FREQ (AS3525_DRAM_FREQ/1) /* PCLK divided from DRAM freq */
#define AS3525_DBOP_FREQ (AS3525_PCLK_FREQ/1) /* DBOP divided from PCLK freq */
sko:
--- Quote from: FlynDice on June 02, 2009, 12:51:34 AM ---For any e200v2 users who are comfortable changing the frequency settings I have found that changing the frequencies in funman's latest mmu patch at FS#10048 to DRAM=PCLK=31 and DBOP = PCLK/1 solves a whole lot of problems for us right now until things get tested more! LCD works fine with these settings!
#define AS3525_FCLK_FREQ 248000000 /* Boosted FCLK frequency */
#define AS3525_DRAM_FREQ 31000000 /* Initial DRAM frequency */
/* AS3525_PCLK_FREQ != AS3525_DRAM_FREQ/1 will boot to white lcd screen */
#define AS3525_PCLK_FREQ (AS3525_DRAM_FREQ/1) /* PCLK divided from DRAM freq */
#define AS3525_DBOP_FREQ (AS3525_PCLK_FREQ/1) /* DBOP divided from PCLK freq */
--- End quote ---
Yay... I watched "Elephants Dream" from the mpegviewer wiki page with this setting and it was playing smooth most time. I also had no freezes until now (played 4 different movies until now).
I also tested one 320 kBit/s mp3 file which played with 14 % boost at about 61 MHz. I'll do further stabiltity tests with music now.
But the menus seems to react slowlier than before and the wheel is not very reliable in spacerocks and pictureflow (spacerocks at all and pictureflow on fast turns).
EDIT: radio is working again (was not working with svn)
kugel.:
--- Quote from: sko on June 02, 2009, 05:05:33 AM ---But the menus seems to react slowlier than before and the wheel is not very reliable in spacerocks and pictureflow (spacerocks at all and pictureflow on fast turns).
--- End quote ---
I can confirm that unboosted the UI responsiveness is suboptimal.
I hope we can find a setting for ~40-45MHz for unboosted (that would also let run mp3 unboosted).
FlynDice:
--- Quote from: kugel. on June 02, 2009, 05:46:37 AM ---I can confirm that unboosted the UI responsiveness is suboptimal.
I hope we can find a setting for ~40-45MHz for unboosted (that would also let run mp3 unboosted).
--- End quote ---
Yes I believe that's from the lower PCLK, but for the e200v2's it lets the lcd function much better for now.
I tried 240/40 and she white screened on me. I got lots-o-Rockbox time today let me see what else I can come up with for e200v2's.
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