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Discussion Groups | TMS320C55x | c55's hardware extension(DCT)
Technical discussions about the TI C55x DSPs (including the c5501, c5502, c5503, c5507, c5509, c5510 and OMAP5910).
c55's hardware extension(DCT) - garlordembed - Sep 16 4:33:00 2004
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hi,all i am using omap1510,which contain a c55x dsp core. i had made c55x run through a very simple assembly code. now i want to test c55x DCT accelerator about DCT. in ti's imagelib,there is a example code named "dctidct",which is a hardware DCT examples.however , when i run this example on c55x ,the result is wrong,however software example get right result. do you ever test that hardware extensions? can anybody tell me what's DCT algorithm implemented in c55x hardware extension? AAN? any message welcome.thank you. |
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Re: c55's hardware extension(DCT) - Lakshman - Sep 16 16:25:00 2004
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Hello All, r u running the demo on OMAP1510 board or simulator?? U can't test h/w accelarators on simulator...I'm using those modules in my project and it's working fine. -Lakshman --- garlordembed <> wrote: > hi,all > > i am using omap1510,which contain a c55x dsp core. > i had made c55x run through a very simple assembly > code. > now i want to test c55x DCT accelerator about DCT. > > in ti's imagelib,there is a example code named > "dctidct",which is a > hardware DCT examples.however , when i run this > example on c55x ,the > result is wrong,however software example get right > result. > > do you ever test that hardware extensions? > can anybody tell me what's DCT algorithm implemented > in c55x hardware > extension? AAN? > > any message welcome.thank you. __________________________________ |
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Re: c55's hardware extension(DCT) - Maximiliano Sonnaillon - Sep 16 18:05:00 2004
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Hello all, I tested the DCT/IDCT w/h acceletator on a C5510 board (emulated with JTAG) and they work good. But the VLC and VLD work bad. Have your tried them? Maxi --- Lakshman <> escribió: --------------------------------- Hello All, r u running the demo on OMAP1510 board or simulator?? U can't test h/w accelarators on simulator...I'm using those modules in my project and it's working fine. -Lakshman --- garlordembed <> wrote: > hi,all > > i am using omap1510,which contain a c55x dsp core. > i had made c55x run through a very simple assembly > code. > now i want to test c55x DCT accelerator about DCT. > > in ti's imagelib,there is a example code named > "dctidct",which is a > hardware DCT examples.however , when i run this > example on c55x ,the > result is wrong,however software example get right > result. > > do you ever test that hardware extensions? > can anybody tell me what's DCT algorithm implemented > in c55x hardware > extension? AAN? > > any message welcome.thank you. __________________________________ _____________________________________ Yahoo! Groups Sponsor ADVERTISEMENT --------------------------------- Yahoo! Groups Links To ___________________________________________________________ 100mb gratis, Antivirus y Antispam Correo Yahoo!, el mejor correo web del mundo http://correo.yahoo.com.ar |
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RE: c55's hardware extension(DCT) - Paul Pignon - Sep 17 5:37:00 2004
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Looked at, did my own. Paul Pignon, CTO Borthwick Pignon Solutions http://bps.co.ee Tartu Science Park Riia 185 51014 Tartu Estonia Office +372 7 302641 Mob +372 53 463942 > -----Original Message----- > From: Maximiliano Sonnaillon [mailto:] > Sent: 16 September 2004 21:06 > To: Lakshman; garlordembed; > Subject: Re: [c55x] c55's hardware extension(DCT) > Hello all, > I tested the DCT/IDCT w/h acceletator on a C5510 board > (emulated with JTAG) and they work good. > But the VLC and VLD work bad. Have your tried them? > Maxi > > --- Lakshman <> escribió: > > --------------------------------- > Hello All, > > r u running the demo on OMAP1510 board or simulator?? > U can't test h/w accelarators on simulator...I'm > using those modules in my project and it's working > fine. > > -Lakshman > --- garlordembed <> wrote: > > > hi,all > > > > i am using omap1510,which contain a c55x dsp core. > > i had made c55x run through a very simple assembly > > code. > > now i want to test c55x DCT accelerator about DCT. > > > > in ti's imagelib,there is a example code named "dctidct",which is a > > hardware DCT examples.however , when i run this > > example on c55x ,the > > result is wrong,however software example get right > > result. > > > > do you ever test that hardware extensions? > > can anybody tell me what's DCT algorithm implemented > > in c55x hardware > > extension? AAN? > > > > any message welcome.thank you. > > > > > > > > __________________________________ > > _____________________________________ > > Yahoo! Groups Sponsor ADVERTISEMENT > --------------------------------- > Yahoo! Groups Links > > To > > ___________________________________________________________ > 100mb gratis, Antivirus y Antispam > Correo Yahoo!, el mejor correo web del mundo > http://correo.yahoo.com.ar > > ------------------------ Yahoo! > Groups Sponsor --------------------~--> > $9.95 domain names from Yahoo!. Register anything. > http://us.click.yahoo.com/J8kdrA/y20IAA/yQLSAA> /9rHolB/TM > -------------------------------------------------------------- > ------~-> > > _____________________________________ > > > Yahoo! Groups Links |
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Re: c55's hardware extension(DCT) - garlordembed - Sep 20 2:05:00 2004
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--- In , Lakshman <lakshman97@y...> wrote: > Hello All, > > r u running the demo on OMAP1510 board or simulator?? > U can't test h/w accelarators on simulator...I'm > using those modules in my project and it's working > fine. > > -Lakshman hi, i am testing it on a omap1510 device.(not a simulator,or c5510/c5509...) the following is my steps. 1. on arm side. run a program to download a DCT(h/w) program to dsp program space by MPUI. 2. restart dsp to direct run this program. 3. at arm side to check result. however, i don't know in order to make DCT(h/w extentision) run, is it needing an extra hardware setup?e.g. r_coeff?the DCT test program is not linked with TI's imagelib,but my handwrite assembly code. I had dissemble TI's imagelib but find some bug,e.g. -- lib not writeback DCT's tempory result to tempory space which needed by row transformation. I WANT TO KNOW DID YOU TEST IT IN OMAP1510 DEVICE? thank you. |
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Re: Re: c55's hardware extension(DCT) - Lakshman - Sep 20 15:53:00 2004
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Hello All,
I tested on OMAP1510 h/w, fallowing are the steps which I fallowed to run the program. 1. Initialize DSP from ARM. 2. Open dct project on DSP side and run the program. rgds -Lakshman --- garlordembed <> wrote: > --- In , Lakshman > <lakshman97@y...> wrote: > > Hello All, > > > > r u running the demo on OMAP1510 board or > simulator?? > > U can't test h/w accelarators on simulator...I'm > > using those modules in my project and it's working > > fine. > > > > -Lakshman > > > > > hi, i am testing it on a omap1510 device.(not a > simulator,or > c5510/c5509...) > the following is my steps. > > 1. on arm side. run a program to download a DCT(h/w) > program to dsp > program space by MPUI. > 2. restart dsp to direct run this program. > 3. at arm side to check result. > > however, i don't know in order to make DCT(h/w > extentision) run, is > it needing an extra hardware setup?e.g. r_coeff?the > DCT test program > is not linked with TI's imagelib,but my handwrite > assembly code. > I had dissemble TI's imagelib but find some bug,e.g. > -- lib not > writeback DCT's tempory result to tempory space > which needed by row > transformation. > > I WANT TO KNOW DID YOU TEST IT IN OMAP1510 DEVICE? > thank you. _______________________________ |
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