/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: SamplerControl.java
* Written by Adam Megacz, Sun Microsystems.
*
* Copyright (c) 2009 Sun Microsystems and Static Free Software
*
* Electric(tm) is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Electric(tm) is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Electric(tm); see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, Mass 02111-1307, USA.
*/
package com.sun.electric.tool.simulation.test;
/**
* Driver for the Signalyzer tool, via urjtag (must be installed).
*
* http://microcontrollershop.com/product_info.php?products_id=1754
*
* NOTE THAT THE SIGNALYZER "LITE" DOES NOT HAVE THE SAME PINOUT AS
* THE DUAL-CHANNEL SIGNALYZER!!
*
* The "Lite" version uses the "ARM Standard JTag 20 Pin Connector",
* which happens to be the same pinout as on the WHITE Corolis boxes
* plus a REQUIRED Vref pin:
*
* VREF 1 2 n.c
* TRST_N 3 4 GND
* TDI 5 6 GND
* TMS 7 8 GND
* TCK 9 10 GND
* n.c. 11 12 GND
* TDO 13 14 GND
* SRST_N 15 16 GND
* n.c. 17 18 GND
* n.c. 19 20 GND
*
* This is almost exactly the [Corelis] "White Box" connector. The
* only Differences are that pin 1 is VREF instead of "reserved" and
* "master clear" is on pin 15 rather than 17. You must connect VREF.
*/
import java.io.*;
import java.util.*;
public class Signalyzer extends NetscanGeneric /* even though it's not a NetScan */ {
private ExecProcess urjtag;
private BufferedReader br;
private HashSet<String> defined = new HashSet<String>();
private static boolean DEBUG = false;
public Signalyzer() { this(8); }
public Signalyzer(int irLen) {
try {
PipedOutputStream pos = new PipedOutputStream();
br = new BufferedReader(new InputStreamReader(new PipedInputStream(pos)));
urjtag = new ExecProcess("jtag -q", new String[0], new File("."),
pos,
new FileOutputStream("urjtag.err"));
urjtag.setDaemon(true);
urjtag.start();
try { Thread.sleep(100); } catch (Exception e) { }
writeln("cable Signalyzer");
expectStart("Connected to");
writeln("detect");
expectStart("IR length: "+irLen);
expectStart("Chain length: 1");
writeln("part 0");
writeln("instruction length "+irLen);
logicOutput = new LogicSettableArray(1);
setLogicOutput(0, true);
} catch (Exception e) { throw new RuntimeException(e); }
}
public void configure(float tapVolt, long kiloHerz) {
// tapVolt is not configurable on this device
writeln("frequency " + (kiloHerz*1000));
expectStart("Setting TCK frequency to");
}
public void reset() {
writeln("reset");
}
public void tms_reset() {
writeln("reset");
}
public void disconnect() {
urjtag.destroyProcess();
}
public void setLogicOutput(int index, boolean newLevel) {
if (index!=0) throw new RuntimeException("we only support one GPIO, pin 15");
logicOutput.setLogicState(index, newLevel);
writeln("pod RESET="+(newLevel?"1":"0"));
}
protected int hw_net_scan_ir(int numBits, short[] scanIn, short[] scanOut, int drBits) {
if (DEBUG) {
System.err.print("hw_net_scan_ir("+numBits+", {");
for(int i=0; i<scanIn.length; i++)
System.err.print(" "+scanIn[i]+",");
System.err.print("}, {");
for(int i=0; i<scanOut.length; i++)
System.err.print(" "+scanOut[i]+",");
System.err.println("})");
}
if (scanIn.length != 1) throw new RuntimeException("not implemented");
StringBuffer sb = new StringBuffer();
for(int i=numBits-1; i>=0; i--)
sb.append( (scanIn[i/16] & (short)(1<<(i%16)))==0 ? "0" : "1" );
String bits = sb.toString();
if (!defined.contains(bits)) {
defined.add(bits);
writeln("register R"+bits+" "+drBits);
writeln("instruction I"+bits+" "+bits+" R"+bits);
}
writeln("instruction I"+bits);
writeln("shift ir");
scanOut[0] = 1;
return 0;
}
protected int hw_net_scan_dr(int numBits, short[] scanIn, short[] scanOut) {
if (DEBUG) {
System.err.print("hw_net_scan_dr("+numBits+", {");
for(int i=0; i<scanIn.length; i++)
System.err.print(" "+scanIn[i]+",");
System.err.print("}, {");
for(int i=0; i<scanOut.length; i++)
System.err.print(" "+scanOut[i]+",");
System.err.println("})");
}
StringBuffer sb = new StringBuffer();
for(int i=numBits-1; i>=0; i--)
sb.append( (scanIn[i/16] & (short)(1<<(i%16)))==0 ? "0" : "1" );
String bits = sb.toString();
writeln("dr " + bits);
expectStart(bits);
writeln("shift dr");
writeln("dr");
String dr = readln();
if (dr.length()==0) throw new RuntimeException();
for(int i=0; i<scanOut.length; i++) scanOut[i] = 0;
int j = 0;
for(int i=Math.min(dr.length(),numBits)-1; i>=0; i--) {
switch(dr.charAt(i)) {
case '0': j++; break;
case '1': scanOut[j/16] |= (short)(1<<(j%16)); j++; break;
default: throw new RuntimeException("unexpected char: " +
dr.charAt(i) + " = " + ((int)dr.charAt(i)));
}
}
return 0;
}
private void writeln(String s) {
if (DEBUG) System.err.println(s);
urjtag.writeln(s);
}
private String readln() {
try {
String s;
while(true) {
s = br.readLine();
if (s.startsWith("Device Id: unknown as bit")) continue;
break;
}
if (DEBUG) System.err.println(s);
return s;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
private void expectStart(String x) {
String s = readln();
if (!s.startsWith(x))
throw new RuntimeException("expected a line starting with \""+x+"\" but got \""+s+"\"");
}
}