/*!
ucecho -- uppercase conversion example for ZTEX USB-FPGA Module 1.11c
Copyright (C) 2009-2014 ZTEX GmbH.
http://www.ztex.de
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 3 as
published by the Free Software Foundation.
This program 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 this program; if not, see http://www.gnu.org/licenses/.
!*/
import java.io.*;
import java.util.*;
import ch.ntb.usb.*;
import ztex.*;
// *****************************************************************************
// ******* ParameterException **************************************************
// *****************************************************************************
// Exception the prints a help message
class ParameterException extends Exception {
public final static String helpMsg = new String (
"Parameters:\n"+
" -d Device Number (default: 0)\n" +
" -f Force uploads\n" +
" -p Print bus info\n" +
" -w Enable certain workarounds\n"+
" -h This help" );
public ParameterException (String msg) {
super( msg + "\n" + helpMsg );
}
}
// *****************************************************************************
// ******* Test0 ***************************************************************
// *****************************************************************************
class UCEcho extends Ztex1v1 {
// ******* UCEcho **************************************************************
// constructor
public UCEcho ( ZtexDevice1 pDev ) throws UsbException {
super ( pDev );
}
// ******* echo ****************************************************************
// writes a string to Endpoint 4, reads it back from Endpoint 2 and writes the output to System.out
public void echo ( String input ) throws UsbException {
byte buf[] = input.getBytes();
int i = LibusbJava.usb_bulk_write(handle(), 0x04, buf, buf.length, 1000);
if ( i<0 )
throw new UsbException("Error sending data: " + LibusbJava.usb_strerror());
System.out.println("Send "+i+" bytes: `"+input+"'" );
try {
Thread.sleep( 10 );
}
catch ( InterruptedException e ) {
}
buf = new byte[1024];
i = LibusbJava.usb_bulk_read(handle(), 0x82, buf, 1024, 1000);
if ( i<0 )
throw new UsbException("Error receiving data: " + LibusbJava.usb_strerror());
System.out.println("Read "+i+" bytes: `"+new String(buf,0,i)+"'" );
}
// ******* main ****************************************************************
public static void main (String args[]) {
int devNum = 0;
boolean force = false;
boolean workarounds = false;
try {
// init USB stuff
LibusbJava.usb_init();
// scan the USB bus
ZtexScanBus1 bus = new ZtexScanBus1( ZtexDevice1.ztexVendorId, ZtexDevice1.ztexProductId, true, false, 1);
if ( bus.numberOfDevices() <= 0) {
System.err.println("No devices found");
System.exit(0);
}
// scan the command line arguments
for (int i=0; i=args.length) throw new Exception();
devNum = Integer.parseInt( args[i] );
}
catch (Exception e) {
throw new ParameterException("Device number expected after -d");
}
}
else if ( args[i].equals("-f") ) {
force = true;
}
else if ( args[i].equals("-p") ) {
bus.printBus(System.out);
System.exit(0);
}
else if ( args[i].equals("-p") ) {
bus.printBus(System.out);
System.exit(0);
}
else if ( args[i].equals("-w") ) {
workarounds = true;
}
else if ( args[i].equals("-h") ) {
System.err.println(ParameterException.helpMsg);
System.exit(0);
}
else throw new ParameterException("Invalid Parameter: "+args[i]);
}
// create the main class
UCEcho ztex = new UCEcho ( bus.device(devNum) );
ztex.certainWorkarounds = workarounds;
// upload the firmware if necessary
if ( force || ! ztex.valid() || ! ztex.dev().productString().equals("ucecho example for UFM 1.11") ) {
System.out.println("Firmware upload time: " + ztex.uploadFirmware( "ucecho.ihx", force ) + " ms");
force = true;
}
// upload the bitstream if necessary
if ( force || ! ztex.getFpgaConfiguration() ) {
System.out.println("FPGA configuration time: " + ztex.configureFpga( "fpga/ucecho.bit" , force ) + " ms");
}
// claim interface 0
ztex.trySetConfiguration ( 1 );
ztex.claimInterface ( 0 );
// read string from stdin and write it to USB device
String str = "";
BufferedReader reader = new BufferedReader( new InputStreamReader( System.in ) );
while ( ! str.equals("quit") ) {
System.out.print("Enter a string or `quit' to exit the program: ");
str = reader.readLine();
if ( ! str.equals("") )
ztex.echo(str);
System.out.println("");
}
// release interface 0
ztex.releaseInterface( 0 );
}
catch (Exception e) {
System.out.println("Error: "+e.getLocalizedMessage() );
}
}
}