Rockbox Development > New Ports
Rockbox Player - Project to design and build a Free/Open hardware audio player
casainho:
--- Quote from: toffe on February 27, 2008, 10:53:33 AM ---A good page on open hardware and licence
http://www.freesoftwaremagazine.com/articles/making_open_hardware_possible?page=0%2C0
http://www.tapr.org/OHL
--- End quote ---
After reading this suggestions - thanks toffe :-) - I would use The TAPR Open Hardware License instead of any other. I will wait 2 days for suggestions or other ideas before chose and write this license on wiki page.
spark:
I'm not sure how well TAPR-OHL is supported. I don't think it is popular still.
I will prefer Creative Commons to TAPR due to its popularity and support in various countries.
techforumz:
--- Quote from: spark on February 11, 2008, 02:07:50 PM ---[[V1 requirements]]
[1 or 2 outputs?]
1 stere o/p should suffice. you can anyways plug a Y splitter externally to have 2 headphones.
--- End quote ---
I like having two. Maybe one can double as a line-in, like on the zen v.
--- Quote ---
[wireless connectivity?]
Bluetooth is a good option. For hardware all we may need is a SPI bluettoth chip. i dunno how r we gonna implement the bluetooth software stack on the player. It will be challenging.
--- End quote ---
WiFi is way faster, and easier to program. Plus we can implement internet radio.
--- Quote ---
[Built-in storage]
The main purpose of built in storage is to hold the firmware. But it doesn't hurt if we have some more space here to accomodate some media files.
(available options NOR, NAND, SPI)
SPI is not an option as it is restricted to a few MB's with very high price/MB.
NOR is expensive whhen compared to NAND. Again restricted to less than 64MB
NAND has lowest price/MB.
the AT91 supports NAND bootloader. NAND is cheap and available in higher capacities with lowest price/MB. in fact the 8GB SD card we r talking about also uses NAND chip/s iniside.
1GB internal NAND is the best value for money for now. by the time we're in production, 2/4GB should be appropriate. Nothing changes in the hardware. just need to solder the cheaper/bigger chip.
--- End quote ---
An external IDE port would be useful. I've got a ton of HDDs collecting dust.
--- Quote ---[CAD tools]
gimme an option to use Orcad Layout and i'll get the PCB done in a week's time. we can later re-design using kiCad. atleast we'll get the concept proven. ;)
jokes apart. maybe we'll have to learn kiCad(PCB).
--- End quote ---
Ok, now what about the CPU? I believe an ARM9 @ 200MHz would be more than sufficient.
What screen? Something about 2.5" true color sounds good.
casainho:
--- Quote from: techforumz on February 29, 2008, 03:37:20 PM ---Ok, now what about the CPU? I believe an ARM9 @ 200MHz would be more than sufficient.
What screen? Something about 2.5" true color sounds good.
--- End quote ---
Thank you for yours suggestions. I would like to point you to the page about the project and as you will read, we already selected the processor:
http://www.rockbox.org/twiki/bin/view/Main/RockboxPlayer
scorche:
--- Quote from: techforumz on February 29, 2008, 03:37:20 PM ---
--- Quote ---[wireless connectivity?]
Bluetooth is a good option. For hardware all we may need is a SPI bluettoth chip. i dunno how r we gonna implement the bluetooth software stack on the player. It will be challenging.
--- End quote ---
WiFi is way faster, and easier to program. Plus we can implement internet radio.
--- End quote ---
It also uses up much more power.
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