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[/] [usb_fpga_2_13/] [trunk/] [examples/] [usb-1.0/] [flashbench/] [FlashBench.java] - Rev 2
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/*! flashbench -- Flash memory benchmark for ZTEX USB Module 1.0 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 <number> Device Number (default: 0)\n" + " -s <number> Number of sectors to be tested, -1 means all (default: 10000)\n" + " -f Force uploads\n" + " -p Print bus info\n" + " -w Enable certain workarounds which may be required for vmware + windows\n"+ " -h This help" ); public ParameterException (String msg) { super( msg + "\n" + helpMsg ); } } // ***************************************************************************** // ******* Test0 *************************************************************** // ***************************************************************************** class FlashBench extends Ztex1v1 { // ******* FlashBench ********************************************************** // constructor public FlashBench ( ZtexDevice1 pDev ) throws UsbException { super ( pDev ); } // ******* testRW ************************************************************** // measures read + write performance public double testRW ( int num ) throws UsbException, InvalidFirmwareException, CapabilityException { int secNum = 2048 / flashSectorSize(); byte[] buf1 = new byte[flashSectorSize() * secNum]; byte[] buf2 = new byte[flashSectorSize() * secNum]; int errors = 0; long t0 = new Date().getTime(); for ( int i=0; i<num; i+=secNum ) { int l = Math.min(num-i,secNum); int j=(int) Math.round(65535*Math.random()); for (int k=0; k<flashSectorSize()*l; k++) { buf1[k] = (byte) (j & 255); j+=57; } System.out.print("Sector " + (i+l) + "/" + num+ " " + Math.round(10000.0*(i+1)/num)/100.0 + "% \r"); flashWriteSector(i,l,buf1); flashReadSector(i,l,buf2); int diffs=flashSectorSize()*l; for (int k=0; k<flashSectorSize()*l; k++) if ( buf1[k] == buf2[k] ) diffs -= 1; if ( diffs!=0 /*&& errors==0 */) { System.out.println("Error occured at sector " + i +": " + diffs + " differences"); } if ( diffs!=0 ) errors+=1; } System.out.println("testRW: " + errors +" errors detected"); return num*flashSectorSize()*1.0/(new Date().getTime() - t0); } // ******* testW ************************************************************** // measures write performance public double testW ( int num, int seed ) throws UsbException, InvalidFirmwareException, CapabilityException { int secNum = 2048 / flashSectorSize(); byte[] buf = new byte[flashSectorSize() * secNum]; long t0 = new Date().getTime(); for ( int i=0; i<num; i+=secNum ) { int j = Math.min(num-i,secNum); System.out.print("Sector " + (i+j) + "/" + num+ " " + Math.round(10000.0*(i+1)/num)/100.0 + "% \r"); for (int k=0; k<flashSectorSize()*j; k++) { buf[k] = (byte) (seed & 255); seed+=79; } flashWriteSector(i,j,buf); } return num*flashSectorSize()*1.0/(new Date().getTime() - t0); } // ******* testR ************************************************************** // measures read performance public double testR ( int num, int seed ) throws UsbException, InvalidFirmwareException, CapabilityException { int secNum = 2048 / flashSectorSize(); byte[] buf = new byte[flashSectorSize() * secNum]; int errors = 0; long t0 = new Date().getTime(); for ( int i=0; i<num; i+=secNum ) { int j = Math.min(num-i,secNum); System.out.print("Sector " + (i+j) + "/" + num+ " " + Math.round(10000.0*(i+1)/num)/100.0 + "% \r"); flashReadSector(i,j,buf); int diffs = flashSectorSize()*j; for (int k=0; k<flashSectorSize()*j; k++) { if ( buf[k] == (byte) (seed & 255) ) diffs-=1; seed+=79; } if ( diffs!=0 && errors==0 ) { System.out.println("Error occured at sector " + i +": " + diffs + " differences"); } if ( diffs!=0 ) errors+=1; } System.out.println("testR: " + errors +" errors detected"); return num*flashSectorSize()*1.0/(new Date().getTime() - t0); } // ******* main **************************************************************** public static void main (String args[]) { int devNum = 0; boolean force = false; boolean workarounds = false; int sectors = 10000; 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"); } } if ( args[i].equals("-s") ) { i++; try { if (i>=args.length) throw new Exception(); sectors = Integer.parseInt( args[i] ); } catch (Exception e) { throw new ParameterException("Number of sectors expected after -s"); } } 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 FlashBench ztex = new FlashBench ( bus.device(devNum) ); ztex.certainWorkarounds = workarounds; // upload the firmware if necessary if ( force || ! ztex.valid() || ! ztex.dev().productString().equals("flashbench for UM 1.0") ) { System.out.println("Firmware upload time: " + ztex.uploadFirmware( "flashbench.ihx", force ) + " ms"); } // print some information System.out.println("Capabilities: " + ztex.capabilityInfo(", ")); System.out.println("Enabled: " + ztex.flashEnabled()); System.out.println("Size: " + ztex.flashSize()+" Bytes"); // ztex.printMmcState(); if ( sectors<1 || sectors>ztex.flashSectors() ) sectors = ztex.flashSectors(); System.out.println("Read + Write Performance: " + ztex.testRW(sectors) + "kb/s \n"); int seed = (int) Math.round(65535*Math.random()); System.out.println("Write Performance: " + ztex.testW(sectors, seed) + "kb/s "); System.out.println("Read Performance: " + ztex.testR(sectors, seed) + "kb/s \n"); } catch (Exception e) { System.out.println("Error: "+e.getLocalizedMessage() ); } } }