tfir_fr31.c

来自「blankfin 中对iir功能进行测试」· C语言 代码 · 共 140 行

/****************************************************************************
 Copyright(c) 2000 - 2003 Analog Devices. All Rights Reserved.
Developed by Blackfin DSP software Group, IPDC, Bangalore, India
for Blackfin DSPs.
By using this module you agree to the terms of the Analog Devices License
Agreement for DSP Software. 
***************************************************************************
  File Name      : tfir_fr24.c
  Description    : This module tests the fir function.

***************************************************************************/

#include "math.h"
#include "input_fir.dat"
#include "output_fir.dat"

segment("mydata1") fract32 delay[8];
segment("mydata2") fract32 h[8];
segment("mydata3") fract32 inp1[128];
segment("mydata4") fract32 out1[128];
segment("mydata3") fract32 inp2[256];
segment("mydata4") fract32 out2[256];
segment("mydata3") fract32 inp3[256];
segment("mydata4") fract32 out3[256];
segment("mydata3") fract32 inp4[256];
segment("mydata4") fract32 out4[256];


void (*f1)();
int cycle_count[10];
void _fir_fr24();

main()
{
	
	fract32 *RWptr;
	int i, No_Samp, No_Coeff=8;
	
	
	f1 = _fir_fr24;
	
	h[0]=  0xFFD30000;
	h[1]=  0x03600000;
	h[2]=  0x13F00000;
	h[3]=  0x28DA0000;
	h[4]=  0x28DA0000;
	h[5]=  0x13F00000;
	h[6]=  0x03600000;
	h[7]=  0xFFD30000;
	
	
	for(i=0;i<No_Coeff;i++)
		delay[i]=0;
	
//Test case1
	No_Samp=128;	
	RWptr=&inp1[0];
	
	

	for(i=0;i<No_Samp;i++)
		inp1[i]=input1[i];
		
	
	

cycle_count[0] = Compute_Cycle_Count(inp1,out1,h,delay,No_Coeff,No_Samp, RWptr);
                //This function inturn calls fir_fr24()

	for(i=0;i<No_Samp;i++)
	{
		if(out1[i]!=output1[i])
		printf("Test case1 is failed\n");
	}

//Test case2
// TEST 1 : Multiple value test ; taplength%8 = 0
//Input data consists of sinusoidal signal whose normalised frequency = 0.1,the 
//signal amplitude = 1/4, Filter cutoff = 0.3 (normalised), 
//Number of samples = 256 = BUFFER_SIZE,  filter Tap length = BASE_TAPLENGTH = 8
    RWptr=&inp2[0];
    No_Samp=256;
    
    
    
    for(i=0;i<No_Samp;i++)
		inp2[i]=input2[i];
    
		
cycle_count[1] = Compute_Cycle_Count(inp2,out2,h,delay,No_Coeff,No_Samp, RWptr);

	for(i=0;i<No_Samp;i++)
	{
		if(out2[i]!=output2[i])
		printf("Test case2 is failed\n");
	}
	

//Test case3
// Description: Input data consists of sinusoidal signal whose normalised 
//frequency = 0.1,the signal amplitude= 1/4, Filter cutoff = 0.3 (normalised),
// Number of samples = 256 = BUFFER_SIZE filter Tap length = 
//BASE_TAPLENGTH + 1  = 9         
    RWptr=&inp3[0];
    No_Samp=256;
    
    
    
    for(i=0;i<No_Samp;i++)
		inp3[i]=input3[i];
    
		
cycle_count[2] = Compute_Cycle_Count(inp3,out3,h,delay,No_Coeff,No_Samp, RWptr);

	for(i=0;i<No_Samp;i++)
	{
		if(out3[i]!=output3[i])
		printf("Test case3 is failed\n %d",i);
	}
//Test case4
    RWptr=&inp4[0];
    No_Samp=256;
    
    
    
    for(i=0;i<No_Samp;i++)
		inp4[i]=input4[i];
    
		
cycle_count[3] = Compute_Cycle_Count(inp4,out4,h,delay,No_Coeff,No_Samp, RWptr);

	for(i=0;i<No_Samp;i++)
	{
		if(out4[i]!=output4[i])
		printf("Test case4 is failed\n %d",i);
	}

}