How to use printf in DSP side?

song

Hi,

I am a beginner of 8168.

I want to debug my codec. How can I use printf to print debug information?

use GT_Trace?

I know it will show lots of debug information when I use CE_CHECK and CE_DEBUG options to run the ARM APP.(Honestly, I cannot understand that debug information.)

But there isn't any thing I want to print out in DSP side.

Can I just use stdio.h, and printf function to print out something?

Is there any options I need when I compile the codec?

In this URL http://processors.wiki.ti.com/index.php?title=Debugging_the_DSP_side_of_a_CE_application_on_DaVinci_using_CCS,

it mentioned a method about how to debug the DSP side.

I don't know whether I really understand that method or not.

I think it means that, use a getch() to stop ARM application,

and load the x674 file which can be compiled by the DSP server project as a symbol to DSP core using CCS and set some breakpoints.

Then, hit any key let ARM core run again.

Is that mean I should make the codec and DSP server project using CCS software?

Now I just studied the examples in codec engine. So I can only make these under linux using EZSDK.

How can I import the examples (codec and server) into CCS as a project?

Can someone help me?

Thanks.

yours

wang

over 14 years ago

0 Joern over 14 years ago

Genius 3055 points

Hi,

I assume, that this thread will be helpful for you. Especially read this entry by Chris.Feel free to ask if questions remain.

Regards,
Joern.

0 song over 14 years ago in reply to Joern

Intellectual 590 points

Thank you very much Joern,

I will try the method.

For the CCS debug method mentioned here

http://processors.wiki.ti.com/index.php?title=Debugging_the_DSP_side_of_a_CE_application_on_DaVinci_using_CCS

Is it mean that the DSP Server and codecs can be compiled by CCS?

Can you tell me how to import the examples of codec engine into CCS, or how to build a new DSP Server project using CCS?

Thank you.

0 Joern over 14 years ago in reply to song

Genius 3055 points

Sorry, concerning CCS I have no experience, as I completely work at Linux command line resp. makefile driven and with Emacs, just by use of EZSDK. The CCS version for Linux I tried only once, and it yet seemed too preliminary for me, so I cancelled that.

0 Gagan Maur over 14 years ago in reply to Joern

TI__Expert 8150 points

You will find tons of information here:

http://processors.wiki.ti.com/index.php/Category:Codec_Engine

0 Joern over 14 years ago in reply to Gagan Maur

Genius 3055 points

Indeed, tons. As concrete as your answer is.

Not to be missunderstood: That wiki is a valuable ressource. But also it is yet very inexact in lots of points, f.e. the often implicit assumption of all users would be Windows users (wrong pathes, *.bat files without any comment, often it should be better clarified which group of devices is meant, ...). For sure, it is not easy to get all the different platforms and SDK(-components) documented within one pool. Thatswhy somehow it should be enhanced to spend information about regards (development platform, devices, versions).

And, as above already has been mentioned, that wiki is already known:

In this URL http://processors.wiki.ti.com/index.php?title=Debugging_the_DSP_side_of_a_CE_application_on_DaVinci_using_CCS,

it mentioned a method about how to debug the DSP side.

But Gagan, maybe you with your experience may open my eyes and show us more exact places than even the codec engine category page where the last, very basic questions are clearly answered:

Is it mean that the DSP Server and codecs can be compiled by CCS?

Can you tell me how to import the examples of codec engine into CCS, or how to build a new DSP Server project using CCS?

I actually would be happy to know these places within the wiki, or to have a short and clear answer to them, thanks a lot Gagan, in advance.

Regards,
Joern.

P.S. Sorry, if I sounded somewhat cynically. But until now the most time of developing for a TI platform I am searching for the fitting information. The state of information about TI products in some parts is actually not bad - aside from some central information gaps - but often it is not easy to find the information being actually regarding first. Thatswhy I am deeply interested that at least here within the forum open questions get clarified as concrete as possible: by directly regarding links or answers.

0 Gagan Maur over 14 years ago in reply to Joern

TI__Expert 8150 points

> Is it mean that the DSP Server and codecs can be compiled by CCS?
> Can you tell me how to import the examples of codec engine into CCS, or how to build a new DSP Server project using CCS?

http://processors.wiki.ti.com/index.php/Codec_Engine_GenServer_Wizard_FAQ
http://processors.wiki.ti.com/index.php/Codec_Engine_GenServer_Wizard_FAQ#Code_Composer_Studio_4.x_and_5.x

Does the above help?

Please feel free to point error that you may come across on wikis. As a matter of fact, if you know the solution, please just correct/update the wikis. We try very hard to make sure we provide as much information as we can on our documentation and wikis. We try harder to make sure the information is easy to get to. We are definitely not perfect.. but with critical and constructive feedback, we will keep trying to improve!

> P.S. Sorry, if I sounded somewhat cynically.

Please don't be! Your feedback is very welcome. I understand the challanges of getting started. We are here listning to you 24hrs a day to try and help! Please feel free to write to us. All the very best

Cheers,

Gagan

0 song over 14 years ago in reply to Joern

Intellectual 590 points

I got the debug information using that method.

Thank you again Joern.

0 song over 14 years ago in reply to Gagan Maur

Intellectual 590 points

Hi Gagan,

Thank you for your reply.

I have read the GenServer Wizard in wiki. It seems difficult to build a Codec Engine under windows, so I think I will try that under Linux.

There is a codec engine plugin for CCS software, but it seems not work.

Just like the problem in this URL http://e2e.ti.com/support/embedded/f/355/t/114290.aspx

Genserver does not support the C6A8168 board?

I will try it later. Thank you.

yours,

wang

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How to use printf in DSP side?