URL
https://opencores.org/ocsvn/usb_fpga_1_11/usb_fpga_1_11/trunk
Subversion Repositories usb_fpga_1_11
[/] [usb_fpga_1_11/] [trunk/] [examples/] [usb-fpga-1.11/] [1.11c/] [intraffic/] [InTraffic.java] - Rev 7
Go to most recent revision | Compare with Previous | Blame | View Log
/*! intraffic -- example showing how the EZ-USB FIFO interface is used on ZTEX USB-FPGA Module 1.11c Copyright (C) 2009-2011 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 <number> 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 ); } } // ***************************************************************************** // ******* USBReader *********************************************************** // ***************************************************************************** class UsbReader extends Thread { private final int bufNum = 8; public final int bufSize = 512*1024; public byte[][] buf = new byte[bufNum][]; public int[] bufBytes = new int[bufNum]; private int readCount = -1; private int getCount = -1; public boolean terminate = false; private Ztex1v1 ztex; public UsbReader ( Ztex1v1 p_ztex ) { super (); ztex = p_ztex; for (int i=0; i<bufNum; i++) { buf[i]=new byte[bufSize]; } } public int getBuffer () { getCount += 1; while (getCount >= readCount) { try { sleep(1); } catch ( InterruptedException e) { } } return getCount % bufNum; } public void reset () { getCount = readCount + 1; } public void run() { setPriority(MAX_PRIORITY); // claim interface 0 try { ztex.trySetConfiguration ( 1 ); ztex.claimInterface ( 0 ); } catch ( Exception e) { System.out.println("Error: "+e.getLocalizedMessage() ); System.exit(2); } // reader loop while ( !terminate ) { readCount += 1; while ( readCount - bufNum >= getCount ) { try { sleep(1); } catch ( InterruptedException e) { } } int i = readCount % bufNum; bufBytes[i] = LibusbJava.usb_bulk_read(ztex.handle(), 0x82, buf[i], bufSize, 1000); // System.out.println("Buffer " + i +": read " + bufBytes[i] + " bytes"); } // release interface 0 ztex.releaseInterface( 0 ); } } // ***************************************************************************** // ******* Test0 *************************************************************** // ***************************************************************************** class InTraffic extends Ztex1v1 { // ******* InTraffic ************************************************************** // constructor public InTraffic ( ZtexDevice1 pDev ) throws UsbException { super ( pDev ); } // ******* 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; i++ ) { if ( args[i].equals("-d") ) { i++; try { if (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 InTraffic ztex = new InTraffic ( bus.device(devNum) ); ztex.certainWorkarounds = workarounds; // upload the firmware if necessary if ( force || ! ztex.valid() || ! ztex.dev().productString().equals("intraffic example for UFM 1.11") ) { System.out.println("Firmware upload time: " + ztex.uploadFirmware( "intraffic.ihx", force ) + " ms"); force = true; } // upload the bitstream if necessary if ( force || ! ztex.getFpgaConfiguration() ) { System.out.println("FPGA configuration time: " + ztex.configureFpga( "fpga/intraffic.bit" , force ) + " ms"); } // read the traffic UsbReader reader = new UsbReader( ztex ); reader.start(); // EZ-USB FIFO test (controlled mode) ztex.vendorCommand (0x60, "Set test mode", 0, 0); reader.reset(); int vcurrent = -1; for (int i=0; i<1000; i++) { int j = reader.getBuffer(); int bb = reader.bufBytes[j]; byte[] b = reader.buf[j]; int current = vcurrent+1; int lastwi = -1; int aerrors = 0; int ferrors = 0; int errors = 0; int prevErrors = 0; for (int k=1; k<bb; k+=2 ) { if ( (b[k] & 0x80) == 0 ) { current = ((b[k] & 0x7f) << 8) | (b[k-1] & 0xff); if ( lastwi == 0 ) aerrors+=1; if ( lastwi == 0 ) System.out.println("Alignment error: 0 at " + i + ":" + (k-1) ); lastwi = 0; } else { current |= ((b[k] & 0x7f) << 23) | ((b[k-1] & 0xff) << 15); vcurrent += 1; if ( vcurrent % 100 == 90 ) vcurrent += 10; if ( lastwi == 1 ) { aerrors+=1; System.out.println("Alignment error: 1 at " + i + ":" + (k-1) ); } else if ( vcurrent != current ) { if ( (i != 0) && ( k != 3) ) { System.out.println("Error: 0b" + Integer.toBinaryString(vcurrent) + " expected at " + i + ":" + (k-3) + " but " ); System.out.println(" 0b" + Integer.toBinaryString(current) + " found"); errors+=1; prevErrors+=1; } vcurrent = current; } else { // if ( prevErrors > 0 ) System.out.println(" 0b" + Integer.toBinaryString(current) ); if ( prevErrors == 1 ) ferrors +=1; prevErrors = 0; } lastwi = 1; // System.out.println(current); } // System.out.println(b[k]+" " +b[k+1]); } System.out.print("Buffer " + i + ": " + (errors-ferrors) + " errors, " + ferrors + " FIFO errors, " + aerrors + " alignment errors \r"); } System.out.println(); // performance test (continous mode) ztex.vendorCommand (0x60, "Set test mode", 1, 0); reader.reset(); int words = 0; int intSum = 0; int intMax = 0; int intAdj = 0; int lastwi = -1; for (int i=0; i<1000; i++) { int j = reader.getBuffer(); int bb = reader.bufBytes[j]; byte[] b = reader.buf[j]; int current = vcurrent+1; for (int k=1; k<bb; k+=2 ) { if ( (b[k] & 0x80) == 0 ) { current = ((b[k] & 0x7f) << 8) | (b[k-1] & 0xff); if ( lastwi == 0 ) intAdj -= 1; lastwi = 0; } else { current |= ((b[k] & 0x7f) << 23) | ((b[k-1] & 0xff) << 15); if ( lastwi == 1 ) { intAdj += 1; } else { vcurrent += 1; int it = (current - vcurrent)*2 + intAdj; if ( it > 0 && words > 0) { intSum += it; if ( it > intMax ) intMax = it; } words += 2; vcurrent = current; intAdj = 0; } lastwi = 1; // System.out.println(current); } // System.out.println(b[k]+" " +b[k+1]); } System.out.print("Buffer " + i + ": " + Math.round(words*6000.0/(words+intSum))/100.0 + "MB/s, max. interrupt: " + Math.round(intMax/150.0)/100 + "ms \r"); } System.out.println(); reader.terminate=true; } catch (Exception e) { System.out.println("Error: "+e.getLocalizedMessage() ); } } }
Go to most recent revision | Compare with Previous | Blame | View Log