Subversion Repositories usb_dongle_fpga

#! /usr/bin/python

# -*- coding: utf-8 -*-

##########################################################################

# LPC Dongle programming software 

#

# Copyright (C) 2006 Artec Design

# 

# This library is free software; you can redistribute it and/or

# modify it under the terms of the GNU Lesser General Public

# License as published by the Free Software Foundation; either

# version 2.1 of the License, or (at your option) any later version.

# 

# This software 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

# Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public

# License along with this library; if not, write to the Free Software

# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

##########################################################################

#-------------------------------------------------------------------------

# Project:   LPC Dongle programming software 

# Name:      dongle.py

# Purpose:   Executable command line tool 

#

# Author:    Jüri Toomessoo <jyrit@artecdesign.ee>

# Copyright: (c) 2006 Artec Design

# Licence:   LGPL

#

# Created:   06 Oct. 2006

# History:   12 oct. 2006  Version 1.0 released

#            

#

#-------------------------------------------------------------------------

import os

import sys

import string

import time

from sets import *

from struct import *

from Uspp.uspp import *

#### global funcs ####

def usage(s):

    print "Artec USB Dongle programming utility"

    print "Usage: ",s," -c comport [-fvdq] filename address"

    print "       ",s," [-fvdqr] offset length filename"

    print "Options:"

    print " -c        COM port"

    print " -v        Verbose"

    print " -f        Forced"

    print " -d        Debug"

    print " -q        Query"

    print " -r        Readback "

    print "Examples:"

    print ""

    print " ",s," -c COM3 loader.bin 0"

    print " ",s," -c /dev/ttyS3 content.bin 256K"

    print " ",s," -c COM3 device 1M"

    print " ",s," -c COM3 -r 0x0000 256 flashcontent.bin"

######################

class DongleMode:

    def __init__(self):

        self.v = 0

        self.f = 0

        self.d = 0

        self.q = 0

        self.r = 0

        self.filename=""

        self.portname=""

        self.address=-1

        self.offset=-1

        self.length=-1

    def convParamStr(self,param):

        mult = 1

        value = 0

        str = param

        if str.find("K")>-1:

            mult = 1024

            str=str.strip("K")

        if str.find("M")>-1:

            mult = 1024*1024

            str=str.strip("M")

        try:

            if str.find("x")>-1:

                value = int(str,0)*mult  #conver hex string to int

            else:

                value = int(str)*mult  #conver demical string to int

        except ValueError:

            print "Bad parameter format given for: ",param

        return value

class Dongle:

    def __init__(self,name, baud, timeout):  #time out in millis 1000 = 1s baud like 9600, 57600

        try:

            self.tty = SerialPort(name,timeout, baud)

        except:

            print "Unable to open port"

            sys.exit();

    def getReturn(self,byteCount):

        i=0

        while don.tty.inWaiting()<byteCount:

            i=i+1

            if i==10000*byteCount:

                break

        if i==10000*byteCount:

            print "Dongle not connected to port or not communicating"

            sys.exit()

        return don.tty.read(byteCount)  ## ret two bytes

    def write_command(self,command):

        lsb = command&0xff

        msb = (command>>8)&0xff

        self.tty.write_2bytes(msb,lsb)

    def get_address_buf(self,address):  #set word address

        lsbyte = address&0xff

        byte = (address>>8)&0xff

        msbyte = (address>>16)&0xff

        buffer = ""

        buffer += chr(lsbyte)

        buffer += chr(0xA0)

        buffer +=  chr(byte)

        buffer +=  chr(0xA1)

        buffer +=  chr(msbyte)

        buffer +=  chr(0xA2)

        evaluate = (address>>24)

        if evaluate != 0:

            print "Addressign fault. Too large address passed"

            sys.exit()

        return buffer

    def set_address(self,address):  #set word address

        lsbyte = address&0xff

        byte = (address>>8)&0xff

        msbyte = (address>>16)&0xff

        evaluate = (address>>24)

        if evaluate != 0:

            print "Addressign fault. Too large address passed"

            sys.exit()

        self.tty.write_2bytes(lsbyte,0xA0)            #set internal address to dongle

        self.tty.write_2bytes(byte,0xA1)            #set internal address to dongle

        self.tty.write_2bytes(msbyte,0xA2)            #send query command

    def read_data(self,wordCount,address):

        command = 0

        byteCount = wordCount<<1  #calc byte count

        if wordCount>0 :

            command = (command|wordCount)<<8;

            command = command|0xCD

            self.set_address(address)    # send read address

            self.write_command(command)  # send get data command

            return self.getReturn(byteCount)

        else:

            print "Word count can't be under 1"

            sys.exit()

    def read_status(self):

        don.write_command(0x0070) # 0x0098 //clear status

        command = 0

        wordCount= 1  #calc byte count

        byteCount = wordCount<<1

        command = (command|wordCount)<<8;

        command = command|0xCD

        self.write_command(command)  # send get data command

        return self.getReturn(byteCount)

    def get_block_no(self,address):

        return address >> 16 # 16 bit mode block is 64Kwords

    def wait_on_busy(self):

        exit=0

        while exit==0:

            buf=self.read_status()

            statReg = ord(buf[0])  #8 bit reg

            if statReg>>7 == 1:

                exit=1

    def parse_status(self):  # use only after wait on busy commad to get result of the operation

        exit = 0

        buf=self.read_status()

        statReg = ord(buf[0])  #8 bit reg

        if (statReg>>5)&1 == 1:

            print "Block erase suspended"

            exit = 1

        if (statReg>>4)&3 == 3:

            print "Error in command order"  #if bits 4 and 5 are set then 

            exit = 1

        if (statReg>>4)&3 == 1:

            print "Error in setting lock bit"

            exit = 1

        if (statReg>>3)&1 == 1:

            print "Low Programming Voltage Detected, Operation Aborted"

            exit = 1

        if (statReg>>2)&1 == 1:

            print "Programming suspended"

            exit = 1

        if (statReg>>1)&1 == 1:

            print "Block lock bit detected"

            exit = 1

        if exit == 1:

            sys.exit()

    def erase_block(self,blockNo):

        blockAddress = blockNo << 16

        command = 0x0020

        self.set_address(blockAddress)

        self.write_command(command)  #issue block erase

        command = 0x00D0

        self.write_command(command)  #issue block erase confirm

        self.wait_on_busy()

        self.parse_status()

    def buffer_write(self,wordCount,startAddress,buffer):

        # to speed up buffer writing compose all commands into one buffer

        # instead of multiple single writes this is needed as the FTDI chip

        # round lag is amazingly large with VCOM drivers

        #u = len(buffer)

        if len(buffer)<32:            #don't ever make unaligned writes

            i=len(buffer)

            while len(buffer)<32:

                buffer += "\xff"

        adrBuf = self.get_address_buf(startAddress)   #6 bytes total

        cmd_e8=""  #8 bytes total

        cmd_e8+= chr(16)   #make it always 16 wordCount

        cmd_e8+= chr(0xE8)

        cmd_wcnt=""  #10 bytes total

        cmd_wcnt+= chr(0x00)

        cmd_wcnt+= chr(16-1)

        cmd_buf=""  #12 bytes total

        cmd_buf+= chr(0x00)

        cmd_buf+= chr(0xD0)

        wr_buffer_cmd = adrBuf + cmd_e8 + cmd_wcnt + buffer + cmd_buf   #44 bytes total

        self.tty.write_buf_cmd(wr_buffer_cmd)

        # no wait needad as the FTDI chip is so slow

################## Main program #########################

last_ops = 0

mode = DongleMode()

# PARSE ARGUMENTS 

for arg in sys.argv:

    if len(sys.argv) == 1: # if no arguments display help

       usage(sys.argv[0])

       sys.exit()

    if arg in ("-h","--help","/help","/h"):

        usage(sys.argv[0])

        sys.exit()

    if arg in ("-c"):

        last_ops = sys.argv.index(arg) + 1  #if remains last set of options from here start ordered strings

        i = sys.argv.index(arg)

        print "Opening port: "+sys.argv[i+1]

        mode.portname = sys.argv[i+1]   # next element after -c open port for usage

    if arg[0]=="-" and arg[1]!="c": # if other opptions

        # parse all options in this

        last_ops = sys.argv.index(arg)  #if remains last set of options from here start ordered strings

        ops = arg[1:]# get all besides the - sign

        for op in ops:

            if op=="q":

                mode.q = 1

            if op=="v":

                mode.v = 1

            if op=="f":

                mode.f = 1

            if op=="d":

                mode.d = 1

            if op=="r":

                mode.r = 1

    else:

        i = sys.argv.index(arg)

        if i ==  last_ops + 1:

            if mode.r==1:

                mode.offset=mode.convParamStr(arg)

            else:

                mode.filename=arg

        if i ==  last_ops + 2:

            if mode.r==1:

                mode.length=mode.convParamStr(arg)

            else:

                mode.address=mode.convParamStr(arg)

        if i ==  last_ops + 3:

            if mode.r==1:

                mode.filename=arg

            else:

                print "Too many parameters provided"

                sys.exit()

        if i >  last_ops + 3:

             print "Too many parameters provided"

             sys.exit()

# END PARSE ARGUMENTS             

if mode.portname=="":

    print "No port name given see -h for help"

    sys.exit()

else:

    # test PC speed to find sutable delay for linux driver

    # to get 250 us 

    mytime = time.clock()

    n = 0

    while (n < 100000):

        n += 1;

    k10Time = time.clock() - mytime   # time per 10000 while cycles

    wait = k10Time/100000.0     # time per while cycle

    wait = (0.00025/wait) * 1.20   # count for 250us + safe margin

    # ok done

    don = Dongle(mode.portname,115200,100)

    print wait

    don.tty.wait = wait

    don.write_command(0x0050) # 0x0098

    don.write_command(0x00C5)            #send dongle check internal command

    buf=don.getReturn(2)  # two bytes expected to this command

    if ord(buf[1])==0x32 and  ord(buf[0])==0x10:

        print "Dongle OK"

    else:

        print 'Dongle returned on open: %02x %02x '%(ord(buf[1]), ord(buf[0]))

if mode.q == 1:   # perform a query from dongle

    don.write_command(0x0050) # 0x0098

    don.write_command(0x0098) # 0x0098

    buf=don.read_data(3,0x000010)  # word count and word address

    if ord(buf[0])==0x51 and  ord(buf[2])==0x52 and  ord(buf[4])==0x59:

        buf=don.read_data(2,0x000000)  # word count and word address

        print 'Query  OK, Factory: 0x%02x device: 0x%02x '%(ord(buf[0]),ord(buf[2]))

        buf=don.read_data(2,0x000002)

        print 'lock bit is 0x%02x 0x%02x'%(ord(buf[0]),ord(buf[1]))

    else:

        print "Got bad query data:"

        print 'Query address 0x10 = 0x%02x%02x '%(ord(buf[1]),ord(buf[0]))

        print 'Query address 0x10 = 0x%02x%02x '%(ord(buf[3]),ord(buf[2]))

        print 'Query address 0x10 = 0x%02x%02x '%(ord(buf[5]),ord(buf[4]))

        print "Read byte count:",len(buf)

    don.write_command(0x00FF) # 0x0098

    buf=don.read_data(4,0xff57c0>>1)  # word count and word address     

    print 'Data: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x '%(ord(buf[1]),ord(buf[0]),ord(buf[3]),ord(buf[2]),ord(buf[5]),ord(buf[4]),ord(buf[7]),ord(buf[6]) )

if mode.filename!="" and mode.address!=-1:

    #Calculate number of blocks and start of blocks

    size = 0

    mode.address = mode.address>>1  #make word address

    try:

        f=open(mode.filename,"rb")

        f.seek(0,2) #seek to end

        size = f.tell()

        f.seek(0) #seek to start

        print 'File size %iK '%(size/1024)

        f.close()

    except IOError:

         print "IO Error on file open"

         sys.exit()

    #clear blockLock bits

    don.write_command(0x0060) # 0x0098

    don.write_command(0x00D0) # 0x0098

    don.wait_on_busy()

    don.parse_status()

    wordSize = (size+ (size&1))>> 1    # round byte count up and make word address

    endBlock = don.get_block_no(mode.address+wordSize - 1)

    startBlock = don.get_block_no(mode.address)

    i=startBlock

    while i <= endBlock:

        print 'Erasing block %i '%(i)

        don.erase_block(i)

        don.wait_on_busy()

        don.parse_status()   #do this after programming all but uneaven ending

        i=i+1

    #don.write_command(0x00FF) # 0x0098

    #buf=don.read_data(4,0x000000)  # word count and word address     

    #print 'Data: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x '%(ord(buf[0]),ord(buf[1]),ord(buf[2]),ord(buf[3]),ord(buf[4]),ord(buf[5]),ord(buf[6]),ord(buf[7]) )

    f=open(mode.filename,"rb")

    f.seek(0) #seek to start

    address= mode.address

    #don.set_address(address)

    while 1:

        if address/(1024*16) != (address-16)/(1024*16):  # get bytes from words if 512

            print 'Progress: %iK of %iK at 0x%06x'%((address-mode.address)/512,size/1024,address)

        buf = f.read(32)  #16 words is maximum write here bytes are read

        if len(buf)==32:

            don.buffer_write(16,address,buf)

            address = address + 16

        elif len(buf)>0:

            don.parse_status()   #do this after programming all but uneaven ending

            print "Doing an unaligned write..."

            length = len(buf)

            length = (length + (length&1))>> 1   #round up to get even word count

            buf = buf+"\xff"   #pad just in case rounding took place

            don.buffer_write(len,address,buf)

            address = address + 16     #inc word address

            break

        else:

            break

    print "Write DONE!"

    don.parse_status()   #do this after programming all but uneaven ending

    f.close()

if mode.r == 1:   # perform a readback

    if mode.offset!=-1 and mode.length!=-1 and mode.filename!="":

        mode.offset=mode.offset>>1    #make word offset

        mode.length= mode.length>>1   #make word length

        try:

            f=open(mode.filename,"wb")

            don.write_command(0x00FF) #  put flash to data read mode

            address = mode.offset    # set word address

            while 1:

                if address/(1024*32) != (address-128)/(1024*32):  # get K bytes from words if 512

                    print 'Progress: %iK of %iK'%((address-mode.offset)/512,mode.length/512)

                buf=don.read_data(128,address)  # word count and byte address read 64 words to speed up

                f.write(buf)

                #print "from address:",address<<1," ", len(buf)

                if address+128 >= (mode.offset + mode.length):  # 2+64 estimates the end to end in right place

                    break

                address = address + 128    #this is word address

            f.close()

            print "Readback done!"

        except IOError:

            print "IO Error on file open"

            sys.exit()

    else:

       print "Some of readback parameters missing..."

       print mode.offset,mode.length, mode.filename

       sys.exit()

##########################################################