A SD/USB/Ethernet transport

jkeny · 16th July 2009, 08:32 PM

What about this as a platform for a SD transport, a USB transport or an ethernet transport http://www.cyantechnology.com/mcu/mcu_eCOG1X.php
â€¢ I2S digital audio output
â€¢ USB 2.0 480MBit ULPI Interface
â€¢ In Built 10/100 Mbps Ethernet MAC
â€¢ Dual Smart Card Interface
â€¢ External Memory Interface
â€¢ 4x32 segment LCD controller

Can use external clock - so low jitter clock could be sent back from an attached DAC
Free compiler & development tools - a number of library modules & applications already available.

Cheap boards - for instance â‚¬37 for this http://www.cyantechnology.com/acatalog/Module.html - It has 10/100m ethernet, USB2, SD, LCD interfaces & I2S outputs built-in - so it could be a standalone player using SDH cards

One problem I see is a slow ethernet throughput but I think that's not a limitation of the MCU just the UDP library module. Another problem might be that a MCU radiates more RFI than an FPGA - I don't know how significant this might be.

Any thoughts?

Edit: Oh and it uses C programming language - another plus as far as I'm concerned

jkeny · 18th July 2009, 02:38 AM

No interest in this then or is there a flaw that I'm missing?

Tolu · 2nd September 2009, 06:51 AM

I am not a µC-programmer and don't know how to program C so it is way too complicated for me but perhaps other folks are capable to let it fly.

berni8k · 3rd September 2009, 04:57 AM

Well im doing a small media server with a mcu as a part of the XMOS design challenge. It will play stuff too but not from a cd

NeoY2k · 24th September 2009, 12:39 PM

This is really interesting, and must be flagged!
Also look at the bigger ethernet/usb-SOLVED module from them.

4real · 03:26 PM

Just forget this platform. It's full of bugs and the support is horrible... They are not even capable of delivering a decent FAT library.. We've been using this stuff for some project at work, at we ended up debugging more of the libraries than our on code

jkeny · 24th September 2009, 04:09 PM

And here's another nail in the coffin - a reply from them:

Quote:

Unfortunately the performance required to handle audio and operate USB or Ethernet simultaneously is beyond what the eCOG1X can provide. A cut-down version (reading of an SD card and output on the I2S port) would still require some analysis before confirming whether this was definitely possible.

NeoY2k · 25th September 2009, 10:37 AM

Damn!
Does anyone knows a powerful and simple platform to work on that could be used to make a "multimedia box"?
(yes, an AMD Geode board running Linux would do the trick and be the simplest solution, I guess, but....?).

4real · 25th September 2009, 12:20 PM

Look at Cortex M3 variants or a bigger ARM 7 or 9?

16th July 2009, 08:32 PM	#1
jkeny Banned Join Date: Feb 2007 Location: Dublin	A SD/USB/Ethernet transport What about this as a platform for a SD transport, a USB transport or an ethernet transport http://www.cyantechnology.com/mcu/mcu_eCOG1X.php â€¢ I2S digital audio output â€¢ USB 2.0 480MBit ULPI Interface â€¢ In Built 10/100 Mbps Ethernet MAC â€¢ Dual Smart Card Interface â€¢ External Memory Interface â€¢ 4x32 segment LCD controller Can use external clock - so low jitter clock could be sent back from an attached DAC Free compiler & development tools - a number of library modules & applications already available. Cheap boards - for instance â‚¬37 for this http://www.cyantechnology.com/acatalog/Module.html - It has 10/100m ethernet, USB2, SD, LCD interfaces & I2S outputs built-in - so it could be a standalone player using SDH cards One problem I see is a slow ethernet throughput but I think that's not a limitation of the MCU just the UDP library module. Another problem might be that a MCU radiates more RFI than an FPGA - I don't know how significant this might be. Any thoughts? Edit: Oh and it uses C programming language - another plus as far as I'm concerned

24th September 2009, 03:22 PM	#6
4real diyAudio Member Join Date: May 2004 Location: Arnhem	Just forget this platform. It's full of bugs and the support is horrible... They are not even capable of delivering a decent FAT library.. We've been using this stuff for some project at work, at we ended up debugging more of the libraries than our on code Last edited by 4real; 24th September 2009 at 03:26 PM.

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18th July 2009, 02:38 AM	#2
jkeny Banned Join Date: Feb 2007 Location: Dublin	No interest in this then or is there a flaw that I'm missing?

2nd September 2009, 06:51 AM	#3
Tolu diyAudio Member Join Date: Mar 2007	I am not a µC-programmer and don't know how to program C so it is way too complicated for me but perhaps other folks are capable to let it fly.

3rd September 2009, 04:57 AM	#4
berni8k diyAudio Member Join Date: May 2009	Well im doing a small media server with a mcu as a part of the XMOS design challenge. It will play stuff too but not from a cd

24th September 2009, 12:39 PM	#5
NeoY2k diyAudio Member Join Date: Dec 2007	This is really interesting, and must be flagged! Also look at the bigger ethernet/usb-SOLVED module from them.

25th September 2009, 10:37 AM	#8
NeoY2k diyAudio Member Join Date: Dec 2007	Damn! Does anyone knows a powerful and simple platform to work on that could be used to make a "multimedia box"? (yes, an AMD Geode board running Linux would do the trick and be the simplest solution, I guess, but....?).

25th September 2009, 12:20 PM	#9
4real diyAudio Member Join Date: May 2004 Location: Arnhem	Look at Cortex M3 variants or a bigger ARM 7 or 9?

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