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"""
# TOP2049 Open Source programming suite
#
# 27c16dip28 UV/OTP EPROM
# 27c32dip28 UV/OTP EPROM
# 27c64dip28 UV/OTP EPROM
# 27c128dip28 UV/OTP EPROM
# 27c256dip28 UV/OTP EPROM
# 27c512dip28 UV/OTP EPROM
# Various manufacturers
#
# Copyright (c) 2012 Michael Buesch <m@bues.ch>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
"""
from libtoprammer.chip import *
from libtoprammer.util import *
class Chip_27cXXX(Chip):
"Generic 27cXXX EPROM"
CTYPE_16 = 0
CTYPE_32 = 1
CTYPE_64 = 2
CTYPE_128 = 3
CTYPE_256 = 4
CTYPE_512 = 5
# Type to size (in bytes)
ctype2size = {
CTYPE_16 : 16 * 1024 // 8,
CTYPE_32 : 32 * 1024 // 8,
CTYPE_64 : 64 * 1024 // 8,
CTYPE_128 : 128 * 1024 // 8,
CTYPE_256 : 256 * 1024 // 8,
CTYPE_512 : 512 * 1024 // 8,
}
def __init__(self, chipType,
chipPinVCC, chipPinVPP, chipPinGND):
Chip.__init__(self, chipPackage = "DIP28",
chipPinVCC = chipPinVCC,
chipPinsVPP = chipPinVPP,
chipPinGND = chipPinGND)
self.chipType = chipType
self.generic = GenericAlgorithms(self)
self.addrSetter = AddrSetter(self, 0, 1)
def readEEPROM(self):
self.__turnOn()
return self.generic.simpleReadEPROM(
sizeBytes = self.ctype2size[self.chipType],
readData8Func = self.__dataRead,
addrSetter = self.addrSetter,
initFunc = lambda: self.__setFlags(oe=0, ce=0),
exitFunc = lambda: self.__setFlags(oe=1, ce=1)
)
# def writeEEPROM(self):
# pass#TODO
def __turnOn(self):
self.__setType(self.chipType)
self.__setFlags()
self.generic.simpleVoltageSetup()
def __setDataPins(self, value):
self.top.cmdFPGAWrite(2, value)
def __setFlags(self, data_en=0, prog_en=0, ce=1, oe=1):
value = 0
if data_en:
value |= (1 << 0)
if prog_en:
value |= (1 << 1)
if ce:
value |= (1 << 2)
if oe:
value |= (1 << 3)
self.top.cmdFPGAWrite(3, value)
def __progPulse(self, usec):
value = roundup(usec, 100) // 100
if value > 0x7F:
value = roundup(value, 8) // 8
if value > 0x7F:
self.throwError("__progPulse time too big")
value |= 0x80 # Set "times 8" multiplier
self.top.cmdFPGAWrite(4, value)
def __setType(self, typeNumber):
self.top.cmdFPGAWrite(5, typeNumber)
def __dataRead(self):
self.top.cmdFPGARead(0)
class Chip_27c16(Chip_27cXXX):
def __init__(self):
Chip_27cXXX.__init__(self,
chipType = Chip_27cXXX.CTYPE_16,
chipPinVCC = 26,
chipPinVPP = 23,
chipPinGND = 14)
ChipDescription(Chip_27c16,
bitfile = "_27cxxxdip28",
chipID = "27c16",
runtimeID = (12, 1),
chipType = ChipDescription.TYPE_EPROM,
chipVendors = "Various",
description = "27c16 EPROM",
packages = ( ("DIP28", ""), )
)
class Chip_27c32(Chip_27cXXX):
def __init__(self):
Chip_27cXXX.__init__(self,
chipType = Chip_27cXXX.CTYPE_32,
chipPinVCC = 26,
chipPinVPP = 22,
chipPinGND = 14)
ChipDescription(Chip_27c32,
bitfile = "_27cxxxdip28",
chipID = "27c32",
runtimeID = (12, 1),
chipType = ChipDescription.TYPE_EPROM,
chipVendors = "Various",
description = "27c32 EPROM",
packages = ( ("DIP28", ""), )
)
class Chip_27c64(Chip_27cXXX):
def __init__(self):
Chip_27cXXX.__init__(self,
chipType = Chip_27cXXX.CTYPE_64,
chipPinVCC = 28,
chipPinVPP = 1,
chipPinGND = 14)
ChipDescription(Chip_27c64,
bitfile = "_27cxxxdip28",
chipID = "27c64",
runtimeID = (12, 1),
chipType = ChipDescription.TYPE_EPROM,
chipVendors = "Various",
description = "27c64 EPROM",
packages = ( ("DIP28", ""), )
)
class Chip_27c128(Chip_27cXXX):
def __init__(self):
Chip_27cXXX.__init__(self,
chipType = Chip_27cXXX.CTYPE_128,
chipPinVCC = 28,
chipPinVPP = 1,
chipPinGND = 14)
ChipDescription(Chip_27c128,
bitfile = "_27cxxxdip28",
chipID = "27c128",
runtimeID = (12, 1),
chipType = ChipDescription.TYPE_EPROM,
chipVendors = "Various",
description = "27c128 EPROM",
packages = ( ("DIP28", ""), )
)
class Chip_27c256(Chip_27cXXX):
def __init__(self):
Chip_27cXXX.__init__(self,
chipType = Chip_27cXXX.CTYPE_256,
chipPinVCC = 28,
chipPinVPP = 1,
chipPinGND = 14)
ChipDescription(Chip_27c256,
bitfile = "_27cxxxdip28",
chipID = "27c256",
runtimeID = (12, 1),
chipType = ChipDescription.TYPE_EPROM,
chipVendors = "Various",
description = "27c256 EPROM",
packages = ( ("DIP28", ""), )
)
class Chip_27c512(Chip_27cXXX):
def __init__(self):
Chip_27cXXX.__init__(self,
chipType = Chip_27cXXX.CTYPE_512,
chipPinVCC = 28,
chipPinVPP = 22,
chipPinGND = 14)
ChipDescription(Chip_27c512,
bitfile = "_27cxxxdip28",
chipID = "27c512",
runtimeID = (12, 1),
chipType = ChipDescription.TYPE_EPROM,
chipVendors = "Various",
description = "27c512 EPROM",
packages = ( ("DIP28", ""), )
)
|
