mirror of
git://projects.qi-hardware.com/nn-usb-fpga.git
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114 lines
2.9 KiB
C++
114 lines
2.9 KiB
C++
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/* XCF Flash PROM JTAG programming algorithms
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Copyright (C) 2004 Andrew Rogers
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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 as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include "progalgxcf.h"
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const byte ProgAlgXCF::SERASE=0x0a;
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const byte ProgAlgXCF::ISPEN=0xe8;
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const byte ProgAlgXCF::FPGM=0xea;
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const byte ProgAlgXCF::FADDR=0xeb;
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const byte ProgAlgXCF::FERASE=0xec;
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const byte ProgAlgXCF::FDATA0=0xed;
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const byte ProgAlgXCF::FVFY0=0xef;
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const byte ProgAlgXCF::NORMRST=0xf0;
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const byte ProgAlgXCF::IDCODE=0xfe;
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const byte ProgAlgXCF::BYPASS=0xff;
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const byte ProgAlgXCF::BIT3=0x08;
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const byte ProgAlgXCF::BIT4=0x10;
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ProgAlgXCF::ProgAlgXCF(Jtag &j, IOBase &i)
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{
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jtag=&j;
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io=&i;
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}
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int ProgAlgXCF::erase()
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{
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byte data[4];
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jtag->shiftIR(&NORMRST);
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io->cycleTCK(40000);
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byte ircap[1];
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jtag->shiftIR(&BYPASS,ircap);
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if((ircap[0]&BIT3)==BIT3){
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fprintf(stderr,"Device is write protected.\n",ircap[0]);
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return 1;
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}
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jtag->shiftIR(&ISPEN);
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jtag->shiftIR(&FADDR);
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jtag->longToByteArray(1,data);
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jtag->shiftDR(data,0,16);
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io->cycleTCK(2);
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printf("Erasing...."); fflush(stdout);
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jtag->shiftIR(&FERASE);
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io->cycleTCK(2400000);
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printf("done.\n");
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jtag->shiftIR(&BYPASS);
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io->tapTestLogicReset();
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return 0;
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}
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int ProgAlgXCF::program(BitFile &file)
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{
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jtag->shiftIR(&NORMRST);
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io->cycleTCK(40000);
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io->setTapState(IOBase::TEST_LOGIC_RESET);
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byte data[4];
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jtag->shiftIR(&ISPEN);
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data[0]=0x34;
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jtag->shiftDR(data,0,6);
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for(int i=0; i<file.getLength(); i+=4096){
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int frame=i/128;
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printf("Programming frames 0x%04x to 0x%04x....",frame,frame+31); fflush(stdout);
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jtag->shiftIR(&FDATA0);
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if((i+4096)<=file.getLength()){
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jtag->shiftDR(&(file.getData())[i/8],0,4096);
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}
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else{
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int rem=(file.getLength()-i)/8; // Bytes remaining
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int pad=512-rem;
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byte paddata[pad]; for(int k=0; k<pad; k++)paddata[k]=0xff;
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jtag->shiftDR(&(file.getData())[i/8],0,rem*8,0,false); // Do not goto EXIT1-DR
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jtag->shiftDR(paddata,0,pad*8);
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}
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jtag->longToByteArray(frame,data);
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jtag->shiftIR(&FADDR);
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jtag->shiftDR(data,0,16);
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io->cycleTCK(2);
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jtag->shiftIR(&FPGM);
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io->cycleTCK(5000);
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printf("done.\n");
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}
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jtag->shiftIR(&BYPASS);
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io->tapTestLogicReset();
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return 0;
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}
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int ProgAlgXCF::verify(BitFile &file)
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{
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return 0;
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}
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