Rockbox Development > New Ports
Cowon D2
shotofadds:
Hi guys, sorry for the extended break. Things have been rather busy for me over the last month or two but I should able to spend time on Rockbox again now. Unfortunately due to my own incompetence I haven't been getting email notifications about this thread, so I didn't know people were having trouble...
@store88, could you maybe try this nand_info line instead?
--- Code: --- /* K9GAG08UOM */
{0xD5, 0x14, 128, 4096, 4096, 128, 2, 3 },
--- End code ---
Note: You don't need the bootloader to try this - just build a new rockbox.bin and upload it using tcctool.
I have not yet tried any of the x.59 firmwares on my D2 but I can see no reason why it could cause a problem.
--- Quote from: store88 ---and my D2 cannot be turned off now :(
--- End quote ---
You've probably already noticed this, but you can always turn a D2 off by holding the power switch for 8 seconds or longer, or by pushing the stylus in the reset button...
store88:
@shotofadds
I tryid the nand_id you suggested.
And I got the error: Max NAND write caches reached.
I think the number 8192 is right.
and I used to turned off the D2 by the way of turing the switch button back and forward.
and that some time works for me.
now I use the reset button to turn if off.
shotofadds:
Hmm, I have an idea what the problem might be. So far we have only encountered two different NAND chip types in the D2 and iAudio 7, and helpfully both happen to use the same style of physical block layout (4 physical blocks to 1 logical 'segment').
The other Telechips ports (Sansa M200, Logik DAX) have different NAND chips and use 1 physical block to 1 logical segment. I think yours may fit into this category (or maybe different again...)
If you can wait a few hours til I get home from work I'll provide a test build for you, which will print some numbers to your screen that will help me debug this issue.
btw. 4096 is definitely correct - I checked the value from the Cowon firmware.
shotofadds:
@store88,
Could you try uploading this build with tcctool please? It should show the Rockbox logo and then a page full of text (hex numbers) - could you post the results here or in a PM please.
http://www.megaupload.com/?d=4PAQ7QHK
Thanks!
buk:
I just put a patch on flyspray (http://www.rockbox.org/tracker/task/9917) that allow the use of the usb serial driver.
To enable logf over usb, you have to :
* Enable "logf over usb" in debug menu before plugging cable
* Plug usb cable
* on linux "modprobe usbserial vendor=0x0781 product=0x7450", then a /dev/ttyUSBX should appear
* use any serial communication program with /dev/ttyUSBX, or just cat /dev/ttyUSBX
(see http://www.rockbox.org/twiki/bin/view/Main/PortalPlayerUsb)
I didn't experiment transferring bunch of data but maybe it would freeze the D2 like when transferring files with usb storage.
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