Rockbox Development > New Ports

Rockbox Player - Project to design and build a Free/Open hardware audio player

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spark:
            9261 v/s 9263
SRAM    160K /  96K
Ethernet     N / Y
I/Os          96 / 160   (notice the similar numbers in SRAM  ;) )
PKG   BGA217 / BGA324
Mem intf.    1 / 2

The 2 memory interfaces probably will give a significant boost for graphics intensive applications, since Graphics data is not sharing regular data bus bandwidth. This is somewhat similar to shared graphics memory v/s dedicated graphics in the PC environment.

I have recently begun to like the IMX processors offered by freescale.
http://www.freescale.com/files/32bit/doc/brochure/FLYRIMXPRDCMPR.pdf

low cost gadgets (arm+linux)
chumby    http://www.chumby.com/
GP2X        http://www.gp2x.co.uk/

Chumby is open hardware. uses IMX21 processor.

casainho:

--- Quote from: spark on May 13, 2008, 08:40:52 AM ---low cost gadgets (arm+linux)
chumby    http://www.chumby.com/
GP2X        http://www.gp2x.co.uk/

Chumby is open hardware. uses IMX21 processor.

--- End quote ---
I am being reading the blog of one person responsible for Chumby: http://www.bunniestudios.com/blog/ -- I did learn a lot about Chinese production :-)

Are you thinking in changing for IMX MCUs? - what are the advantages and disadvantages over actual chosen MCU?

What do you think about that hardware in terms of performance for a possible hardware player as Rockbox? - because we can use them as development platforms, take ideas for hardware...

about flash memory
The serial flash on the Olimex SAM9-L9260 dev. board, of 16MB costs 3€ on farnell and 128MB of NAND flash costs 5,5 €.

casainho:

--- Quote from: friendlyzookeeper on May 13, 2008, 04:26:44 PM ---Do you want reviews on memory or storage?

--- End quote ---
On memory options, sizes, availability, prices and advantages. But I can also do that after.

Now I will invest my energies on putting the AT91Bootstrap to work and launch the Flash LED code.
http://www.atmel.com/dyn/products/app_notes.asp?family_id=605#Memory%20Access%20/%20Boot%20Loader

AT91Bootstrap will be the first code on NAND or Serial Flash, the MCU will read it at boot. The AT91Bootstrap will configure the MCU, the external SDRAM and external NAND or serial flash - after will load the code from one of that memories to the SDRAM and finally jump to it, to execute it, our application. This first application will be the Flash LED code that I put working last time... in the end will be the Rockbox Firmware.

Zardoz:
where is the originator of this thread/idea? is it roach reborn as casainho? I've been lookin at this for a while and I'm confused....

casainho:

--- Quote from: Zardoz on May 13, 2008, 08:35:22 PM ---where is the originator of this thread/idea? is it roach reborn as casainho? I've been lookin at this for a while and I'm confused....

--- End quote ---
No, I am not "roach" - looks like last message of "roach" were on October 03, 2006.

I just come to Rockbox a few months ago, less than 1 year, when I bought my Sansa e200 specially to have Rockbox on it :)

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