资源简介
于博士CADENCE教程相关配套资料,内附2个IBIS模型,供大家交流学习
代码片段和文件信息
/* ---------------------------------------------------------------- */
/* Copyright declaration */
/* ---------------------------------------------------------------- */
/* ---------------------------------------------------------------- */
/* Description:
* FileName : DSP6713_algorithm.c
* Writen by : Yu zheng */
/* ---------------------------------------------------------------- */
/* ---------------------------------------------------------------- */
#define CHIP_6713
#include
#include
#include “DSP6713_const.h“
#include “DSP6713_algorithm.h“
extern int inputbuffer_ping[];
extern int inputbuffer_pong[];
extern int outputbuffer_ping[];
extern int outputbuffer_pong[];
// declare and initalize a IO buffer
float filt_coef[FILT_TAP]={
1.353780e-002
8.324742e-004
-1.314537e-002
6.845718e-003
1.349053e-002
-1.229753e-002
-1.678734e-002
2.568337e-002
1.267590e-002
-4.063949e-002
-4.577620e-003
6.626522e-002
-2.070024e-002
-1.149802e-001
1.099433e-001
4.837131e-001
4.837131e-001
1.099433e-001
-1.149802e-001
-2.070024e-002
6.626522e-002
-4.577620e-003
-4.063949e-002
1.267590e-002
2.568337e-002
-1.678734e-002
-1.229753e-002
1.349053e-002
6.845718e-003
-1.314537e-002
8.324742e-004
1.353780e-002
};
float filt_Lconvbuf[FILT_CONVBUFSIZE];
float filt_Rconvbuf[FILT_CONVBUFSIZE];
/* ---------------------------------------------------------------- */
/* ---------------------------------------------------------------- */
/* complex filter and cic */
void dataprocessing(Uint16 WhichBuffer)
{
int fi;
int fj;
int mod = FILT_CONVBUFSIZE;
int k = 0;
float Lval;
float Rval;
if (WhichBuffer == PING)
{
for (fi=0; fi {
Lval = 0;
Rval = 0;
filt_Lconvbuf[fi] = (float)inputbuffer_ping[2*fi];
filt_Rconvbuf[fi] = (float)inputbuffer_ping[2*fi + 1];
for (fj=0; fj {
k = (fi+mod-fj) % (mod);
Lval += filt_Lconvbuf[k] * filt_coef[fj];
Rval += filt_Rconvbuf[k] * filt_coef[fj];
}
outputbuffer_ping[2*fi] = (int)Lval;
outputbuffer_ping[2*fi + 1] = (int)Rval;
}
}
else
{
for (fi=0; fi {
Lval = 0;
Rval = 0;
filt_Lconvbuf[fi] = (float)inputbuffer_pong[2*fi];
filt_Rconvbuf[fi] = (float)inputbuffer_pong[2*fi + 1];
for (fj=0; fj {
k = (fi+mod-fj) % (mod);
Lval += filt_Lconvbuf[k] * filt_coef[fj];
Rval += filt_Rconvbuf[k] * filt_coef[fj];
}
outputbuffer_pong[2*fi] = (int)Lval;
outputbuffer_pong[2*fi + 1] = (int)Rval;
}
}
/*
int fi;
if (WhichBuffer == PING)
{
for (fi=0; fi {
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
文件 2330199 2012-05-31 15:53 2111849_pas8xx1_ibis_101921\pas8xx1.ibs
----------- --------- ---------- ----- ----
2330199 1
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