How to use DSPLink?

Vasil Koshkin

Hi all!I have this code:

#include <stdio.h>
unsigned long long factorial(unsigned long long n)
{
    if (n == 0) {
        return 1;
    } else {
        return n * factorial(n - 1);
    }
}

int main(void)
{
    int n;
    for (n = 0; n <= 50000; n++) {
        printf("тестирование процессора DAVINCI%i! = %lld\n", n, factorial(n));
    }

    return 0;
}

How to run this code in DSPlink?

over 14 years ago

0 David Friedland over 14 years ago

TI__Mastermind 18320 points

Vasil,

DSPLink is used for running software across multiple cores. See the following for more information:

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

Also, recorded DSPLink webex trainings are available here:

http://processors.wiki.ti.com/index.php/DSPBIOS_LINK_WebEx_Presentations

There are also examples included with DSPLink that you can use to get started.

0 Vasil Koshkin over 14 years ago in reply to David Friedland

Prodigy 205 points

Can i`ll transferr my program factorial( writing on ARM side) for execution on DSP?

0 Nagabhushan Reddy over 14 years ago in reply to Vasil Koshkin

TI__Intellectual 1305 points

Vasil,

DSPLink is used for communicating across processors. You can use Interprocessor communication protocols present in DSPLink (e.g. Notify, message Queue etc) to invoke required functionality on the other processor.

Vasil Koshkin said:

Can i`ll transferr my program factorial( writing on ARM side) for execution on DSP?

No, it is not possible to write a program on the ARM side and dynamically transfer the program to DSP side for execution. The function that needs to be executed on the DSP (e.g. factorial) should be present in the executable image that is loaded on to the DSP.

Whenever the application on the ARM side wants to execute the factorial program on the DSP side, it can send a message to the DSP side (using DSPLink). The application on the DSP side needs to wait for this particular message from the ARM (use DSPLink for messaging) and then can invoke the factorial program. The result can be sent back to the ARM side using another message queue.

The usage of the message queue and other protocols can be found in the links provided by David Friedland in one of the above posts.

Regards,

Nag

(If your question is answered, please click the "Verify Answer" button below)

0 Vasil Koshkin over 14 years ago in reply to Nagabhushan Reddy

Prodigy 205 points

Thank you for help man!Can you help me with writing a program?

0 Vasil Koshkin over 14 years ago in reply to Vasil Koshkin

Prodigy 205 points

How to make executable image of my program on ARM and transferred it on dsp?

Thank you!

Processors

Processors forum

How to use DSPLink?