Hi,

The documentation for 21489 states that the [4x4] x [4x1] matrix multiplication speed is 20ns.

However, when I run the example, it is 340ns.

400Mhz 21489 EZ Kit, and matmmltf() is used.

Are there any settings for matrix operations?

I attach my code and project.

Thank you!

#include <matrix.h>

#include <time.h>

#include "adi_initialize.h"

#include "Test2231.h"

time_t start_time, stop_time;

double time_used;

void main()

{

adi_initComponents();

while(1){

float input_1[4][4], *a_p = (float *) (&input_1);

float input_2[4][1], *b_p = (float *) (&input_2);

float result[4][1], *res_p = (float *) (&result);

for(int i=0; i<4;i++){

for(int j=0; j<4;j++){

input_1[i][j] = (i+1)*(j+1);

input_2[i][0] = 0.2*(i+1);

}

}

start_time = clock();

matmmltf(res_p, a_p, b_p, 4, 4, 1);

stop_time = clock();

time_used = ((double)(stop_time-start_time))/CLOCKS_PER_SEC;

}

}

Sorry for the delayed response, I missed this thread. Let me work on this and get back to you at the earliest.