Rockbox Development > New Ports
Rockbox Player - Project to design and build a Free/Open hardware audio player
casainho:
--- Quote from: eumesmo on January 04, 2008, 08:06:01 AM ---How much easier would it be to first design a home/car based rockbox player with IDE/CF/USB mass storage/Network support? Without power considerations, would that broaden and cheapen development? Wouldn't that attract the interest of a bigger share of the rockbox community, and afterwards create momentum for open-sourced hardware developement and replacement of all personal players? Do you still need dev boards when you can etch your own boards?
--- End quote ---
Network support is not implemented on RB, since I know.
For IDE/CF/USB mass storage/Network support, there should be an expensive hardware board, more work to port, more complex system.
I would prefer a minimal system, for cheap hardware, quick to port - keep that simple. Big and complex after have something simple working... I am sure that RB software started simple ;)
And no, we need dev boards because we don't have technology to make our owns boards :-( - We can draw them but we can't make them nor assembly some parts as MCU and memory. Even If we can pay for make them and after we assembly, It will be more expensive than buy one.
scharkalvin:
--- Quote ---I am still waiting for an answer from http://ic-board.de/, I will just for more 3 days, after that I hope to contact Olimex and ask If they can/want to help in defining, designing, build and sell It for us, thinking in that they can upgrade their MOD-MP3 MP3 PLAYER MODULE - http://www.olimex.com/dev/mod-mp3.html
--- End quote ---
This olimex module in the link is a HW mp3 decoder and not a GP cpu that could run rockbox.
I found these on ebay:
http://cgi.ebay.com/Samsung-S3C2410-ARM-Development-Evaluation-Board-Mini_W0QQitemZ250199268979QQihZ015QQcategoryZ50915QQrdZ1QQssPageNameZWD1VQQcmdZViewItem?_trksid=p1638.m118
http://cgi.ebay.com/Samsung-S3C2440-ARM-Development-Evaluation-Board-Mini_W0QQitemZ250199268651QQihZ015QQcategoryZ50915QQrdZ1QQssPageNameZWD1VQQcmdZViewItem?_trksid=p1638.m118
http://cgi.ebay.com/Samsung-S3C2440-ARM-Development-Evaluation-Board-Ultra_W0QQitemZ250199268498QQihZ015QQcategoryZ50915QQrdZ1QQssPageNameZWD1VQQcmdZViewItem?_trksid=p1638.m118
The first one is probably complete enough and not too expensive.
casainho:
--- Quote from: scharkalvin on January 04, 2008, 09:54:50 AM ---
--- Quote ---I am still waiting for an answer from http://ic-board.de/, I will just for more 3 days, after that I hope to contact Olimex and ask If they can/want to help in defining, designing, build and sell It for us, thinking in that they can upgrade their MOD-MP3 MP3 PLAYER MODULE - http://www.olimex.com/dev/mod-mp3.html
--- End quote ---
This olimex module in the link is a HW mp3 decoder and not a GP cpu that could run rockbox.
--- End quote ---
My logic of thinking is that they could be interested in sell some other boards just for develop an audio player, as that one with combination of others that they sell. They also sell the OPEN EEG, under gadgets category - why not sell another one? :)
--- Quote from: scharkalvin on January 04, 2008, 09:54:50 AM ---I found these on ebay:
http://cgi.ebay.com/Samsung-S3C2410-ARM-Development-Evaluation-Board-Mini_W0QQitemZ250199268979QQihZ015QQcategoryZ50915QQrdZ1QQssPageNameZWD1VQQcmdZViewItem?_trksid=p1638.m118
The first one is probably complete enough and not too expensive.
--- End quote ---
Yes, the first one, It just misses the LCD that is selling in their homepage, I can't see the price :(
I would not trust on that seller! Just 7 sells... US $219.00 + the LCD money is to much from trust in someone selling on Ebay...
I would prefer to buy for the some price the board that you suggested at www.microcontrollershop.com - http://microcontrollershop.com/product_info.php?products_id=1438
The LCD that they recomend is the same price of the board, $220 :( - We must find a cheaper LCD!!
scharkalvin:
This LCD was mentioned before. You have to buy the carrier board because
soldering to the connector by itself is very hard. So the total price is just under $40.
http://www.sparkfun.com/commerce/product_info.php?products_id=600
http://www.sparkfun.com/commerce/product_info.php?products_id=569
Sparkfun also has this arm9 development board:
http://www.sparkfun.com/commerce/product_info.php?products_id=8413#
and this LCD /Multimedia expander:
http://www.sparkfun.com/commerce/product_info.php?products_id=8410
The webpages also show related products.
spark:
--- Quote from: casainho ---A better one, I think, for $200:
http://shop.olimex.eu/pro...=33_34_69&products_id=545
--- End quote ---
this uC (AT91SAM9260) does not have integrated LCD controller :(. We can use serial based LCD though.
--- Quote from: casainho ---Neo1973 - Open hardware mobile phone
This is an almost Open hardware(just the GSM modules are not Open), mobile phone for $300! It have all we need plus much more
--- End quote ---
good find. this one uses the same samsung processor i have listed in the summary doc.
this processor (Samsung S3C2410) has heavy power consumption and there will be problems as far as availability and support is concerned.
the processor is suitable for a feature rich phone, but may be an over kill for a decent RB player.
--- Quote from: eumesmo ---Do you still need dev boards when you can etch your own boards?
--- End quote ---
a dev board can be used as a reference. the software porting work can begin on this board while the hardware design is in progress.
--- Quote from: casainho ---I am still waiting for an answer from http://ic-board.de/, I will just for more 3 days, after that I hope to contact Olimex and ask If they can/want to help in defining, designing, build and sell It for us, thinking in that they can upgrade their MOD-MP3 MP3 PLAYER MODULE - http://www.olimex.com/dev/mod-mp3.html
--- End quote ---
if some company is gonna do everything, then what are we going to do?
--- Quote from: casainho ---Hardware blocs of the RockboxPlayer
--- End quote ---
-just 16kB flash will not be sufficient. need to have at least 8MB flash on the proto boards. this can reduce later, once we know the firmware size.
-4MB RAM may be very conservative to start with. protos can have 16/32MB RAM. we can chip off the excess later.
-battery, charger, power supply stage? this is a very important and challenging stage to design.
-memmory card -> memory card ;). we can finalize an SD card since it is compact and cheap.
-microphone? sound recording h/w can be added with no extra cost. the codec chip (tlv320aic23b) already supports it.
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