DSP core access

DSP core access

[Louis Jung]

Hi all,

I am currently trying to obtain a real time data using DSP core on the omap
platform via the I2C peripheral.  I was hoping to achieve this by
controlling the DSP via linux kernel that's running on the Arm core. There
is a DSP gateway through which I think i should be able to control. Does
anyone know the specific ways of doing this?

Louis Jung
2005-11-23

RE: DSP core access

[andy]

Dear Louis,

You can make mailbox to access DSP with shared memory.

Best Regards
Andy Lu

-----Original Message-----
From: linux-omap-open-source-bounces@linux.omap.com
[mailto:linux-omap-open-source-bounces@linux.omap.com] On Behalf Of Louis
Jung
Sent: Wednesday, November 23, 2005 10:06 AM
To: Linux-omap-open-source@linux.omap.com
Subject: DSP core access

Hi all,

I am currently trying to obtain a real time data using DSP core on the omap
platform via the I2C peripheral.  I was hoping to achieve this by
controlling the DSP via linux kernel that's running on the Arm core. There
is a DSP gateway through which I think i should be able to control. Does
anyone know the specific ways of doing this?

Louis Jung
2005-11-23
_______________________________________________
Linux-omap-open-source mailing list
Linux-omap-open-source@linux.omap.com
http://linux.omap.com/mailman/listinfo/linux-omap-open-source

RE: DSP core access

[Hunter, Jon]

Hi Louis 

> 
> Hi all,
> 
> I am currently trying to obtain a real time data using DSP core on the

> omap platform via the I2C peripheral.  I was hoping to achieve this by

> controlling the DSP via linux kernel that's running on the Arm core. 
> There is a DSP gateway through which I think i should be able to 
> control. Does anyone know the specific ways of doing this?
> 

You could also use the dsp/bios link software for controlling the DSP
and streaming data between the ARM and DSP. See the following link.
There are some simple example applications provided to get you started. 
http://focus.ti.com/dsp/docs/dspsupportatn.tsp?sectionId=3&tabId=477&fam
ilyId=44&toolTypeId=5

In order to use the i2c peripheral from the DSP side you first need to
configure the static switch in the device because this is a
shared-peripheral and defaults as an ARM peripheral. For more details
please refer to section 2.5 of the following document:
http://focus.ti.com/docs/apps/catalog/resources/appnoteabstract.jhtml?ab
stractName=spru758a

Regards,
Jon

RE: DSP core access

[comunerito]

  See also:
   
  https://www-a.ti.com/downloads/sds_support/LinuxDspTools/index.html 
   
  (you will have to register to download). There is a TI Reference Frameworks (RF6) base application that streams data from the codec to the DSP then to the ARM, then back to the DSP, then back to the codec. The DSP-side code implements an FIR filter and volume control but can be modified. The application uses TI's DSP/BIOS Link and Real-Time Analysis (RTA) for debugging.
   
  CD


"Hunter, Jon" <jon-hunter@ti.com> wrote:
  Hi Louis 

> 
> Hi all,
> 
> I am currently trying to obtain a real time data using DSP core on the

> omap platform via the I2C peripheral. I was hoping to achieve this by

> controlling the DSP via linux kernel that's running on the Arm core. 
> There is a DSP gateway through which I think i should be able to 
> control. Does anyone know the specific ways of doing this?
> 

You could also use the dsp/bios link software for controlling the DSP
and streaming data between the ARM and DSP. See the following link.
There are some simple example applications provided to get you started. 
http://focus.ti.com/dsp/docs/dspsupportatn.tsp?sectionId=3&tabId=477&fam
ilyId=44&toolTypeId=5

In order to use the i2c peripheral from the DSP side you first need to
configure the static switch in the device because this is a
shared-peripheral and defaults as an ARM peripheral. For more details
please refer to section 2.5 of the following document:
http://focus.ti.com/docs/apps/catalog/resources/appnoteabstract.jhtml?ab
stractName=spru758a

Regards,
Jon
_______________________________________________
Linux-omap-open-source mailing list
Linux-omap-open-source@linux.omap.com
http://linux.omap.com/mailman/listinfo/linux-omap-open-source



		
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Re: DSP core access

[Louis Jung]

Thanks heaps, I really appreciate it, I will get on to it straight away

On 11/24/05, Hunter, Jon <jon-hunter@ti.com> wrote:
>
> Hi Louis
>
> >
> > Hi all,
> >
> > I am currently trying to obtain a real time data using DSP core on the
>
> > omap platform via the I2C peripheral.  I was hoping to achieve this by
>
> > controlling the DSP via linux kernel that's running on the Arm core.
> > There is a DSP gateway through which I think i should be able to
> > control. Does anyone know the specific ways of doing this?
> >
>
> You could also use the dsp/bios link software for controlling the DSP
> and streaming data between the ARM and DSP. See the following link.
> There are some simple example applications provided to get you started.
> http://focus.ti.com/dsp/docs/dspsupportatn.tsp?sectionId=3&tabId=477&fam
> ilyId=44&toolTypeId=5
>
> In order to use the i2c peripheral from the DSP side you first need to
> configure the static switch in the device because this is a
> shared-peripheral and defaults as an ARM peripheral. For more details
> please refer to section 2.5 of the following document:
> http://focus.ti.com/docs/apps/catalog/resources/appnoteabstract.jhtml?ab
> stractName=spru758a
>
> Regards,
> Jon
>

Re: DSP core access

[Louis Jung]

Thanks heaps for your reply,

However, I was wondering whether this linux_dsp_tools are comaptible with
OMAP5910. The user guide states that it's a DSP development for TI OMAP5912.
Thanks again

On 11/23/05, comunerito <comunerito@yahoo.com> wrote:
>
>   See also:
>
>   https://www-a.ti.com/downloads/sds_support/LinuxDspTools/index.html
>
>   (you will have to register to download). There is a TI Reference
> Frameworks (RF6) base application that streams data from the codec to the
> DSP then to the ARM, then back to the DSP, then back to the codec. The
> DSP-side code implements an FIR filter and volume control but can be
> modified. The application uses TI's DSP/BIOS Link and Real-Time Analysis
> (RTA) for debugging.
>
>   CD
>
>
> "Hunter, Jon" <jon-hunter@ti.com> wrote:
>   Hi Louis
>
> >
> > Hi all,
> >
> > I am currently trying to obtain a real time data using DSP core on the
>
> > omap platform via the I2C peripheral. I was hoping to achieve this by
>
> > controlling the DSP via linux kernel that's running on the Arm core.
> > There is a DSP gateway through which I think i should be able to
> > control. Does anyone know the specific ways of doing this?
> >
>
> You could also use the dsp/bios link software for controlling the DSP
> and streaming data between the ARM and DSP. See the following link.
> There are some simple example applications provided to get you started.
> http://focus.ti.com/dsp/docs/dspsupportatn.tsp?sectionId=3&tabId=477&fam
> ilyId=44&toolTypeId=5
>
> In order to use the i2c peripheral from the DSP side you first need to
> configure the static switch in the device because this is a
> shared-peripheral and defaults as an ARM peripheral. For more details
> please refer to section 2.5 of the following document:
> http://focus.ti.com/docs/apps/catalog/resources/appnoteabstract.jhtml?ab
> stractName=spru758a
>
> Regards,
> Jon
> _______________________________________________
> Linux-omap-open-source mailing list
> Linux-omap-open-source@linux.omap.com
> http://linux.omap.com/mailman/listinfo/linux-omap-open-source
>
>
>
>
> ---------------------------------
> Yahoo! FareChase - Search multiple travel sites in one click.
> _______________________________________________
> Linux-omap-open-source mailing list
> Linux-omap-open-source@linux.omap.com
> http://linux.omap.com/mailman/listinfo/linux-omap-open-source
>

RE: DSP core access

[Toshihiro.Kobayashi]

Hi,

>From: linux-omap-open-source-bounces@linux.omap.com 
>[mailto:linux-omap-open-source-bounces@linux.omap.com] On 
>Behalf Of ext Louis Jung
>Sent: Tuesday, November 29, 2005 8:42 AM

>However, I was wondering whether this linux_dsp_tools are comaptible
with
>OMAP5910. The user guide states that it's a DSP development for TI
OMAP5912.
>Thanks again

Yes it is.
5910, 5912, 1510, 161x and 1710 has the same architecture
from DSP point of view, except for the clock speed.

BR,
Toshihiro Kobayashi

RE: DSP core access

[Hunter, Jon]

> 
> Yes it is.
> 5910, 5912, 1510, 161x and 1710 has the same architecture 
> from DSP point of view, except for the clock speed.
> 

Please note that the C55x DSP core revision may differ between devices.
For example, the OMAP5910 has a C55x v2.1 core and the OMAP5912 has a
v2.2 core. The C55x C compiler has a "-v" option that allows you to
specify the version of C55x core your device has. If you see the
rules.mak file for the reference frameworks you may see the "-v" option
specified as "-v5510:2". This indicates a v2.2 core for the OMAP5912.
What I would recommend is that for the OMAP5910 you use "-vcore:2.1" and
for the OMAP5912 you use "-vcore:2.2" (although this is the same as
-v5510:2). Otherwise you may use the compiler for the above devices. 

Regards,
Jon

Re: DSP core access

[Louis Jung]

Thanks heaps again.

Currently I am not using montavista linux, as some of the bash scripts in
the Linux-DSP-tools have already been configured to, So I guess I will
figure out what I need to change and then proceed from there on,

Again, thank you very much,
Cheers


On 11/30/05, Hunter, Jon <jon-hunter@ti.com> wrote:
>
> >
> > Yes it is.
> > 5910, 5912, 1510, 161x and 1710 has the same architecture
> > from DSP point of view, except for the clock speed.
> >
>
> Please note that the C55x DSP core revision may differ between devices.
> For example, the OMAP5910 has a C55x v2.1 core and the OMAP5912 has a
> v2.2 core. The C55x C compiler has a "-v" option that allows you to
> specify the version of C55x core your device has. If you see the
> rules.mak file for the reference frameworks you may see the "-v" option
> specified as "-v5510:2". This indicates a v2.2 core for the OMAP5912.
> What I would recommend is that for the OMAP5910 you use "-vcore:2.1" and
> for the OMAP5912 you use "-vcore:2.2" (although this is the same as
> -v5510:2). Otherwise you may use the compiler for the above devices.
>
> Regards,
> Jon
>

Re: DSP core access

[Louis Jung]

Hi guys,

Sorry for continuous postings on the same topic, but I am very new to this
OMAP development area and was hoping to grab all the help that can be
provided.
Currently my major problem seems to be on using non-montavista linux. The
CCS approach seems to have ways around non-montavista linux. However the
Linux DSP tools seems to be montavista linux specific. It seems to me that
the tools are using binaries that are specifically provided by montavista,
if I am wrong could someone give me a hand in configuring the
$DSPLINK/make/Linux/osk5912_mvlpreviewkit3.1.mk ? I can't not really find
replacements for
-BASE_CGTOOLS := /opt/montavista/previewkit/arm/v4t_le/bin
-BASE_OSLIB := /opt/montavista/previewkit/arm/v4t_le/lib
which I assume are necessary for C55xx DSP code generation.
Also, although I some how configured <linuxdsptools_env.bash> to suit my
needs (not sure whether it is correct or not, no way of testing yet), can
anyone specfically point out what $HOME represents, if I am using scratchbox
to cross-compile rather than the methods provided in the Linux DSP tools
user guide?

Thanks heaps
Louis

On 11/29/05, Louis Jung <lhsj81@gmail.com> wrote:
>
> Thanks heaps again.
>
> Currently I am not using montavista linux, as some of the bash scripts in
> the Linux-DSP-tools have already been configured to, So I guess I will
> figure out what I need to change and then proceed from there on,
>
> Again, thank you very much,
> Cheers
>
>
> On 11/30/05, Hunter, Jon <jon-hunter@ti.com> wrote:
> >
> > >
> > > Yes it is.
> > > 5910, 5912, 1510, 161x and 1710 has the same architecture
> > > from DSP point of view, except for the clock speed.
> > >
> >
> > Please note that the C55x DSP core revision may differ between devices.
> > For example, the OMAP5910 has a C55x v2.1 core and the OMAP5912 has a
> > v2.2 core. The C55x C compiler has a "-v" option that allows you to
> > specify the version of C55x core your device has. If you see the
> > rules.mak file for the reference frameworks you may see the "-v" option
> > specified as "-v5510:2". This indicates a v2.2 core for the OMAP5912.
> > What I would recommend is that for the OMAP5910 you use "-vcore:2.1" and
> > for the OMAP5912 you use "-vcore:2.2" (although this is the same as
> > -v5510:2). Otherwise you may use the compiler for the above devices.
> >
> > Regards,
> > Jon
> >
>
>

RE: DSP core access

[Hunter, Jon]

Hi Louis,
	
> 	
> Sorry for continuous postings on the same topic, but I am very new to
this OMAP development area and was hoping to grab all the help that can
be 
> provided.
> Currently my major problem seems to be on using non-montavista linux.
The CCS approach seems to have ways around non-montavista linux. However
the Linux > DSP tools seems to be montavista linux specific. It seems to
me that the tools are using binaries that are specifically provided by
montavista, if I am > wrong could someone give me a hand in configuring
the $DSPLINK/make/Linux/osk5912_mvlpreviewkit3.1.mk ? I can't not really
find replacements for
> 	-BASE_CGTOOLS := /opt/montavista/previewkit/arm/v4t_le/bin
> 	-BASE_OSLIB := /opt/montavista/previewkit/arm/v4t_le/lib
> 	which I assume are necessary for C55xx DSP code generation.

>From my understanding the above definitions are not needed for compiling
the DSP portion of dsplink. Please note that dsplink consists of a
kernel module that runs on the arm and a dsp/bios driver that runs on
the dsp. With regard to the above, if you are not using the montavista
tools, then this is where you should specify what build tools you are
using for the arm to build the kernel module and arm side dsplink
applications. 

Regards,
Jon

	
	

RE: DSP core access

[Ishigami]

Hello,

> There is a DSP gateway through which I think i should
> be able to control. Does anyone know the specific ways
> of doing this?


 Basic howto ( see dsp )
 http://oskfordummies.hp.infoseek.co.jp/howto.html

 Home page
 http://dspgateway.sourceforge.net/pub/index.php

 Mailing lists
 http://lists.sourceforge.net/lists/listinfo/dspgateway-devel

 Sample programs in Japanese
 http://www.cqpub.co.jp/interface/download/contents.htm
 (subset) MP3 player (2005 Oct),  Fir filter (2004 May)

 Hope you enjoy the dsp programming, as much as arm linux.

 Regards,
 Ishgiami

-----Original Message-----
From: linux-omap-open-source-bounces@linux.omap.com
[mailto:linux-omap-open-source-bounces@linux.omap.com] On Behalf Of Louis
Jung
Sent: Wednesday, November 23, 2005 11:06 AM
To: Linux-omap-open-source@linux.omap.com
Subject: DSP core access

Hi all,

I am currently trying to obtain a real time data using DSP core on the omap
platform via the I2C peripheral.  I was hoping to achieve this by
controlling the DSP via linux kernel that's running on the Arm core. There
is a DSP gateway through which I think i should be able to control. Does
anyone know the specific ways of doing this?

Louis Jung
2005-11-23
_______________________________________________
Linux-omap-open-source mailing list
Linux-omap-open-source@linux.omap.com
http://linux.omap.com/mailman/listinfo/linux-omap-open-source

Re: DSP core access

[Louis Jung]

THANK YOU EVERYONE!!!!

On 12/1/05, Ishigami <ishigami@ti.com> wrote:
>
> Hello,
>
> > There is a DSP gateway through which I think i should
> > be able to control. Does anyone know the specific ways
> > of doing this?
>
>
> Basic howto ( see dsp )
> http://oskfordummies.hp.infoseek.co.jp/howto.html
>
> Home page
> http://dspgateway.sourceforge.net/pub/index.php
>
> Mailing lists
> http://lists.sourceforge.net/lists/listinfo/dspgateway-devel
>
> Sample programs in Japanese
> http://www.cqpub.co.jp/interface/download/contents.htm
> (subset) MP3 player (2005 Oct),  Fir filter (2004 May)
>
> Hope you enjoy the dsp programming, as much as arm linux.
>
> Regards,
> Ishgiami
>
> -----Original Message-----
> From: linux-omap-open-source-bounces@linux.omap.com
> [mailto:linux-omap-open-source-bounces@linux.omap.com] On Behalf Of Louis
> Jung
> Sent: Wednesday, November 23, 2005 11:06 AM
> To: Linux-omap-open-source@linux.omap.com
> Subject: DSP core access
>
> Hi all,
>
> I am currently trying to obtain a real time data using DSP core on the
> omap
> platform via the I2C peripheral.  I was hoping to achieve this by
> controlling the DSP via linux kernel that's running on the Arm core. There
> is a DSP gateway through which I think i should be able to control. Does
> anyone know the specific ways of doing this?
>
> Louis Jung
> 2005-11-23
> _______________________________________________
> Linux-omap-open-source mailing list
> Linux-omap-open-source@linux.omap.com
> http://linux.omap.com/mailman/listinfo/linux-omap-open-source
>
>

Re: DSP core access

[Louis Jung]

Hello,

I am currently trying to follow Basic Howto (DSP) link that was provided
some time ago. I am using scratchbox and linux-2.6.12-rc2 sources with
appropriate omap patches. I download dspgw3.3-arm and untarred it by
following the instructions given. However, I do not seem to have DSPtools
directory under dspgw3.3-arm after I untar it. Has anyone come  across
similar issues? or know how to resolve this problem?
Thanks everyone

On 12/1/05, Ishigami <ishigami@ti.com> wrote:
>
> Hello,
>
> > There is a DSP gateway through which I think i should
> > be able to control. Does anyone know the specific ways
> > of doing this?
>
>
> Basic howto ( see dsp )
> http://oskfordummies.hp.infoseek.co.jp/howto.html
>
> Home page
> http://dspgateway.sourceforge.net/pub/index.php
>
> Mailing lists
> http://lists.sourceforge.net/lists/listinfo/dspgateway-devel
>
> Sample programs in Japanese
> http://www.cqpub.co.jp/interface/download/contents.htm
> (subset) MP3 player (2005 Oct),  Fir filter (2004 May)
>
> Hope you enjoy the dsp programming, as much as arm linux.
>
> Regards,
> Ishgiami
>
> -----Original Message-----
> From: linux-omap-open-source-bounces@linux.omap.com
> [mailto:linux-omap-open-source-bounces@linux.omap.com] On Behalf Of Louis
> Jung
> Sent: Wednesday, November 23, 2005 11:06 AM
> To: Linux-omap-open-source@linux.omap.com
> Subject: DSP core access
>
> Hi all,
>
> I am currently trying to obtain a real time data using DSP core on the
> omap
> platform via the I2C peripheral.  I was hoping to achieve this by
> controlling the DSP via linux kernel that's running on the Arm core. There
> is a DSP gateway through which I think i should be able to control. Does
> anyone know the specific ways of doing this?
>
> Louis Jung
> 2005-11-23
> _______________________________________________
> Linux-omap-open-source mailing list
> Linux-omap-open-source@linux.omap.com
> http://linux.omap.com/mailman/listinfo/linux-omap-open-source
>
>

Re: DSP core access

[Antti P Miettinen]

Louis Jung <lhsj81@gmail.com> writes:
> ... However, I do not seem to have DSPtools
> directory under dspgw3.3-arm after I untar it.

The dspctl seems to be in utils/dspctl in the 3.3 tarball.

-- 
http://www.iki.fi/~ananaza/

RE: DSP core access

[Ishigami]

Hello,
 
 See "5.2 Toolchain"
 http://dspgateway.sourceforge.net/pub/3.2/DSP_Gateway32_spec.pdf
 It has a pointer for them.
  
 Good luck,
 Ishigami

________________________________

From: Louis Jung
Sent: Monday, December 12, 2005 2:52 PM
To: Ishigami
Cc: Linux-omap-open-source@linux.omap.com
Subject: Re: DSP core access


Hello,

I am currently trying to follow Basic Howto (DSP) link that was provided
some time ago. I am using scratchbox and linux-2.6.12-rc2 sources with
appropriate omap patches. I download dspgw3.3-arm and untarred it by
following the instructions given. However, I do not seem to have DSPtools
directory under dspgw3.3-arm after I untar it. Has anyone come  across
similar issues? or know how to resolve this problem? 
Thanks everyone