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/*!
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/*!
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ucecho -- example for ZTEX USB FPGA Module 1.2
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ucecho -- uppercase conversion example for all EZ-USB devices
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Copyright (C) 2008-2009 ZTEX e.K.
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Copyright (C) 2009-2010 ZTEX e.K.
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http://www.ztex.de
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http://www.ztex.de
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 3 as
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it under the terms of the GNU General Public License version 3 as
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published by the Free Software Foundation.
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published by the Free Software Foundation.
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// constructor
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// constructor
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public UCEcho ( ZtexDevice1 pDev ) throws UsbException {
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public UCEcho ( ZtexDevice1 pDev ) throws UsbException {
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super ( pDev );
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super ( pDev );
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}
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}
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// ******* claimInterface ******************************************************
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// claims interface 0
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public void claimInterface ( ) throws UsbException{
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if ( LibusbJava.usb_set_configuration(handle(), 1) < 0 )
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throw new UsbException("Setting configuration to 1 failed: " + LibusbJava.usb_strerror());
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if ( LibusbJava.usb_claim_interface(handle(), 0) < 0 )
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throw new UsbException("Claiming interface 0 failed: " + LibusbJava.usb_strerror());
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}
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// ******* releaseInterface ****************************************************
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// releases interface 0
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public void releaseInterface ( ) {
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LibusbJava.usb_release_interface(handle(), 0);
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}
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// ******* echo ****************************************************************
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// ******* echo ****************************************************************
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// writes a string to Endpoint 4, reads it back from Endpoint 2 and writes the output to System.out
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// writes a string to Endpoint 4, reads it back from Endpoint 2 and writes the output to System.out
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public void echo ( String input ) throws UsbException {
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public void echo ( String input ) throws UsbException {
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byte buf[] = input.getBytes();
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byte buf[] = input.getBytes();
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int i = LibusbJava.usb_bulk_write(handle(), 0x04, buf, buf.length, 1000);
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int i = LibusbJava.usb_bulk_write(handle(), 0x04, buf, buf.length, 1000);
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try {
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try {
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// init USB stuff
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// init USB stuff
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LibusbJava.usb_init();
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LibusbJava.usb_init();
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// scan the USB bus
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// scan the USB bus
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ZtexScanBus1 bus = new ZtexScanBus1( ZtexDevice1.cypressVendorId, ZtexDevice1.cypressProductId, true, false, 1);
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ZtexScanBus1 bus = new ZtexScanBus1( ZtexDevice1.ztexVendorId, ZtexDevice1.ztexProductId, true, false, 1);
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if ( bus.numberOfDevices() <= 0) {
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if ( bus.numberOfDevices() <= 0) {
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System.err.println("No devices found");
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System.err.println("No devices found");
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System.exit(0);
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System.exit(0);
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}
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}
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if ( force || ! ztex.valid() || ! ztex.dev().productString().equals("ucecho for EZ-USB devices") ) {
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if ( force || ! ztex.valid() || ! ztex.dev().productString().equals("ucecho for EZ-USB devices") ) {
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System.out.println("Firmware upload time: " + ztex.uploadFirmware( "ucecho.ihx", force ) + " ms");
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System.out.println("Firmware upload time: " + ztex.uploadFirmware( "ucecho.ihx", force ) + " ms");
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}
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}
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// claim interface 0
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// claim interface 0
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ztex.claimInterface();
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ztex.trySetConfiguration ( 1 );
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ztex.claimInterface ( 0 );
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// read string from stdin and write it to USB device
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// read string from stdin and write it to USB device
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String str = "";
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String str = "";
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BufferedReader reader = new BufferedReader( new InputStreamReader( System.in ) );
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BufferedReader reader = new BufferedReader( new InputStreamReader( System.in ) );
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while ( ! str.equals("quit") ) {
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while ( ! str.equals("quit") ) {
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ztex.echo(str);
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ztex.echo(str);
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System.out.println("");
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System.out.println("");
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}
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}
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// release interface 0
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// release interface 0
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ztex.releaseInterface();
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ztex.releaseInterface(0);
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}
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}
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catch (Exception e) {
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catch (Exception e) {
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System.out.println("Error: "+e.getLocalizedMessage() );
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System.out.println("Error: "+e.getLocalizedMessage() );
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}
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}
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