Apox digital X-over - Page 3

ojg · 10th June 2003, 03:58 AM

I have programmed both TI and Motorola DSPs and I have found that the Motorolas are not well suited for C-compilers since they have few general-purpose registers. The Motorolas are easy to program in assembly though once you know how

The TI is well suited for C-compilers and the CodeComposer that comes with the eval board is only limited to 32kB application size, which is plenty for this. So TIs cost is not very high, actually lower than Motorolas.

I think the gcc port to the SHARC is very much out of date. It might be painful to get it to work, and I don't know if AD's debugger is free. The SHARC is a neat chip though, and should fit well in this application.

I am almost ready to sign up 'cause this will be a great project! If you decide to go with TI or Motorola then I'd be more than willing to help.

tiroth · 10th June 2003, 06:47 PM

Much much cheaper to implement a serial or parallel interface.

jleaman · 10th June 2003, 06:51 PM

But i dont have parallel on a mac LMAO was there ever a parallel on a mac..

This is getting interesting too.

What is spif for.?

harvardian · 10th June 2003, 06:53 PM

Hi Guys,

I have no trouble with a USB interface. My problem is that I would need to create a program that would work on either type of machine to configure the APOX-DFX.

Perhaps, JAVA would work...

Dale

P.S. I just purchased this board

Here is the eval board that I just purchased.

http://www.analog.com/UploadedFiles/...DSP-21161N.pdf

Has everything that I need to do development:

DSP, SPDIF (CS8414) recvr, 24 bit ADC, 8 channels of DACS, flash, ram, USB interface...

jleaman · 10th June 2003, 06:55 PM

HTTP/1.1 400 Bad Request
you mean that one. REally hehe

harvardian · 10th June 2003, 07:01 PM

Hi Jason,

Link fixed...

Sorry...

SPDIF is:
S/PDIF

S/PDIF (Sony/Philips Digital Interface) is a standard audio transfer file format. It is usually found on digital audio equipment such as a DAT machine or audio processing device. It allows the transfer of audio from one file to another without the conversion to and from an analog format, which could degrade the signal quality.
The most common connector used with an S/PDIF interface is the RCA connector, the same one used for consumer audio products. An optical connector is also sometimes used.

When you hook a CD player to an external DAC, the format used is SPDIF...

jleaman · 10th June 2003, 07:04 PM

example on back of dvd players you'll see the one single rca a certian colour some times too right.

harvardian · 10th June 2003, 07:07 PM

Quote:

Originally posted by JasonL
example on back of dvd players you'll see the one single rca a certian colour some times too right.

I hate to be blunt, but huh?

Yes, the single RCA connection is usually SPDIF even for DVD players. Multi-channel data can also be output in variations of this format.

jleaman · 10th June 2003, 07:10 PM

BLUNT where. LOL.

i was saying a example.

: O )

jleaman · 10th June 2003, 07:12 PM

This project is going to be expencive isn't it. ?

10th June 2003, 06:51 PM	#23
jleaman diyAudio Member Join Date: Apr 2002 Location: j	But i dont have parallel on a mac LMAO was there ever a parallel on a mac.. This is getting interesting too. What is spif for.? __________________ Let the Cable Making Process Begin.! Many sold so far! CLICK!

10th June 2003, 06:53 PM	#24
harvardian diyAudio Member Join Date: Dec 2001 Location: Austin, TX	Hi Guys, I have no trouble with a USB interface. My problem is that I would need to create a program that would work on either type of machine to configure the APOX-DFX. Perhaps, JAVA would work... Dale P.S. I just purchased this board Here is the eval board that I just purchased. http://www.analog.com/UploadedFiles/...DSP-21161N.pdf Has everything that I need to do development: DSP, SPDIF (CS8414) recvr, 24 bit ADC, 8 channels of DACS, flash, ram, USB interface... __________________ doing my part to Keep Austin Wierd.

10th June 2003, 06:55 PM	#25
jleaman diyAudio Member Join Date: Apr 2002 Location: j	HTTP/1.1 400 Bad Request you mean that one. REally hehe __________________ Let the Cable Making Process Begin.! Many sold so far! CLICK!

10th June 2003, 07:01 PM	#26
harvardian diyAudio Member Join Date: Dec 2001 Location: Austin, TX	Hi Jason, Link fixed... Sorry... SPDIF is: S/PDIF S/PDIF (Sony/Philips Digital Interface) is a standard audio transfer file format. It is usually found on digital audio equipment such as a DAT machine or audio processing device. It allows the transfer of audio from one file to another without the conversion to and from an analog format, which could degrade the signal quality. The most common connector used with an S/PDIF interface is the RCA connector, the same one used for consumer audio products. An optical connector is also sometimes used. When you hook a CD player to an external DAC, the format used is SPDIF... __________________ doing my part to Keep Austin Wierd.

10th June 2003, 07:04 PM	#27
jleaman diyAudio Member Join Date: Apr 2002 Location: j	example on back of dvd players you'll see the one single rca a certian colour some times too right. __________________ Let the Cable Making Process Begin.! Many sold so far! CLICK!


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10th June 2003, 03:58 AM	#21
ojg diyAudio Member Join Date: May 2003 Location: Norway	I have programmed both TI and Motorola DSPs and I have found that the Motorolas are not well suited for C-compilers since they have few general-purpose registers. The Motorolas are easy to program in assembly though once you know how The TI is well suited for C-compilers and the CodeComposer that comes with the eval board is only limited to 32kB application size, which is plenty for this. So TIs cost is not very high, actually lower than Motorolas. I think the gcc port to the SHARC is very much out of date. It might be painful to get it to work, and I don't know if AD's debugger is free. The SHARC is a neat chip though, and should fit well in this application. I am almost ready to sign up 'cause this will be a great project! If you decide to go with TI or Motorola then I'd be more than willing to help.

10th June 2003, 06:47 PM	#22
tiroth diyAudio Member Join Date: Dec 2001 Location: Pittsburgh, PA, USA	Much much cheaper to implement a serial or parallel interface.

10th June 2003, 07:10 PM	#29
jleaman diyAudio Member Join Date: Apr 2002 Location: j	BLUNT where. LOL. i was saying a example. : O ) __________________ Let the Cable Making Process Begin.! Many sold so far! CLICK!

10th June 2003, 07:12 PM	#30
jleaman diyAudio Member Join Date: Apr 2002 Location: j	This project is going to be expencive isn't it. ? __________________ Let the Cable Making Process Begin.! Many sold so far! CLICK!

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