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Message
From: cvs at opencores.org<cvs@o...>
Date: Fri Oct 21 14:22:22 CEST 2005
Subject: [cvs-checkins] MODIFIED: jop ...
Date: 00/05/10 21:14:22 Added: jop/java/target/src/app/dsp Example.java
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Revision Changes Path
1.1 jop/java/target/src/app/dsp/Example.java
http://www.opencores.org/cvsweb.shtml/jop/java/target/src/app/dsp/Example.java?rev=1.1&content-type=text/x-cvsweb-markup
Index: Example.java
===================================================================
/*
* Created on 30.05.2005
*
*/
package dsp;
import com.jopdesign.sys.Const;
import com.jopdesign.sys.Native;
/**
* @author admin
*
*/
public class Example {
// This values depends on the ADC!!!
final static int OFFSET = 1550;
final static int FSAMP = 30000;
final static int ABC = 65535;
public static void main(String[] args) {
int cnt = 0;
int cnt2 = 0;
int add = 1;
int add2 = 3;
int left, right;
int val;
int sig = 0;
for(;;) {
// wait for next sample time
val = Native.rdMem(Const.WB_TS0);
if (val>0) {
continue;
}
// we don't use val
cnt += add;
if (cnt>=ABC) {
cnt = ABC;
add = -11;
} else if (cnt<=0) {
add = 11;
cnt = 0;
}
cnt2 += add2;
if (cnt2>=ABC) {
cnt2 = ABC;
add2 = -13;
} else if (cnt2<=0) {
cnt2 = 0;
add2 = 13;
}
sig = (sig+1) & 0x7f;
int rec = (sig & 0x40)<<1;
int saw = sig;
left = (rec*cnt + saw*(0xffff-cnt2))>>18;
right = (saw*cnt2 + rec*(0xffff-cnt))>>18;
val = left + (right<<16);
Native.wrMem(val, Const.WB_TS0);
// Test if we missed the sample output
val = Native.rdMem(Const.WB_TS0);
if (val<0) {
System.out.print('*');
}
}
}
}
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