Simple and Complex Matrix Multiplication

Arun

Hello ,

1. I am trying to understand 6678 DSP board architecture in much detail, Like Basically I want to see how datas are transferred among registers to functional units at data path levels or registers levels. I want to start with single or double precision simple or complex Matrix multiplication. Is there any code generation tools available on CCS or I can get some sample code to try to run.

2. Apart from this is there any timer function available which I can use in code , I have tried with sys/time.h file but I think it is not available on DSP, I have tried with time.h but with this as well, I am not getting correct time of system.

Any help will be appreciated, specially for first one. Thanks.

over 13 years ago

0 tscheck over 13 years ago

TI__Mastermind 23525 points

Arun,

1) Look at the DSPLib, which is installed as part of the MCSDK: http://software-dl.ti.com/sdoemb/sdoemb_public_sw/bios_mcsdk/latest/index_FDS.html It has examples that use our matrix multiply instrinsic functions.

2) If you are just trying to do time measurement, this code can be used.

#include <stdio.h>

#include<c6x.h>

unsigned int t_start_l,t_start_h;
unsigned int t_stop_l,t_stop_h;
unsigned int t_overhead_l,t_overhead_h;

int main(int argc, char *argv[])
{
   int i;
   TSCL = 0;
   TSCH = 0;
   t_start_l = TSCL;
   t_start_h = TSCH;
   for (i=0; i<100000000; i++)
   {
      ;
   }
   t_stop_l = TSCL;
   t_stop_h = TSCH;
   t_overhead_l = t_stop_l - t_start_l;
   t_overhead_h = t_stop_h - t_start_h;
   printf("done, t_overhead_h = 0x%08x\tt_overhead_l=0x%08x\n",t_overhead_h,t_overhead_l);
}

Regards,

Travis

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Simple and Complex Matrix Multiplication