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|
"""
# TOP2049 Open Source programming suite
#
# Cypress M8C In System Serial Programmer
#
# Copyright (c) 2010-2011 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 *
import time
class Chip_M8C_ISSP(Chip):
ISSPCMD_POR = 1 # Perform a power-on-reset
ISSPCMD_PWROFF = 2 # Turn power off
ISSPCMD_EXEC = 3 # Do an "execute" transfer
STAT_BUSY0 = 0x01
STAT_BUSY1 = 0x02
STAT_ISSPSTATE = 0x1C
STAT_ISSPSTATE_SHIFT = 2
STAT_SDATA = 0x20
STRVEC_INIT1 = (
"1100101010000000000111",
"0000000000000000000000",
"0000000000000000000000",
"0000000000000000000000",
"0000000000000000000000",
"0000000000000000000000",
"1101111011100010000111",
"1101111101000000000111",
"1101111011100000000111",
"1101111011100010000111",
"1101111111000000100111",
"1101110001000000100111",
"1101110000000000011111",
"1101111011100000000111",
"1001111100000111010111",
"1001111100100000011111",
"1001111101101000000111",
"1001111110000000000111",
"1001111111001010110111",
"1001111110100000001111",
"1001111111100000001111",
"1001111111110000000111",
"1101111011100010000111",
"1101110001000000000111",
"1101111111000000000111",
"1101110000000000000111",
"1101111011100000000111",
"1101111010000000011111",
"1101111010100000000111",
"1101111011000000000111",
"1101111100000000000111",
"1101111100100110000111",
)
STRVEC_INIT2 = (
"1001111101000000000111",
"1101111000000000110111",
"1101111100000000000111",
"1101111111100010010111",
)
STRVEC_IDSETUP = (
"1101111011100010000111",
"1101110000000000010111",
"1101111011100010000111",
"1101111101000000000111",
"1101111011100000000111",
"1101111011100010000111",
"1101111111000000100111",
"1101110001000000100111",
"1101110000000000011111",
"1101111011100000000111",
"1001111100000111010111",
"1001111100100000011111",
"1001111101101000000111",
"1001111110000000000111",
"1001111111001010110111",
"1001111110100000001111",
"1001111111100000001111",
"1001111111110000000111",
"1101111011100010000111",
"1101110001000000000111",
"1101111111000000000111",
"1101110000000000000111",
"1101111011100000000111",
"1101111010000000011111",
"1101111010100000000111",
"1101111011000000000111",
"1101111100000000000111",
"1101111100100110000111",
"1001111101000000000111",
"1101111000000000110111",
"1101111100000000000111",
"1101111111100010010111",
)
STRVEC_READBYTE = (
"101aaaaaaaaZDDDDDDDDZ1",
)
STRVEC_WRITEBYTE = (
"100aaaaaaaadddddddd111",
)
STRVEC_ERASEALL = (
"1001111110000010101111",
"1001111111001010110111",
"1101111011100010000111",
"1101111101000000000111",
"1101111011100000000111",
"1101111011100010000111",
"1101111111000000100111",
"1101110001000000100111",
"1101110000000000011111",
"1101111011100000000111",
"1001111100000111010111",
"1001111100100000011111",
"1001111101101000000111",
"1001111110000000000111",
"1001111111001010110111",
"1001111110100000001111",
"1001111111100000001111",
"1001111111110000000111",
"1101111011100010000111",
"1101110001000000000111",
"1101111111000000000111",
"1101110000000000000111",
"1101111011100000000111",
"1101111010000000011111",
"1101111010100000000111",
"1101111011000000000111",
"1101111100000000000111",
"1101111100100110000111",
"1101111000000000101111",
"1101111100000000000111",
"1101111111100010010111",
)
STRVEC_SETBLKNUM = (
"10011111010dddddddd111",
)
STRVEC_READBLK = (
"1101111011100010000111",
"1101111101000000000111",
"1101111011100000000111",
"1101111011100010000111",
"1101111111000000100111",
"1101110001000000100111",
"1101110000000000011111",
"1101111011100000000111",
"1001111100000111010111",
"1001111100100000011111",
"1001111101101000000111",
"1001111110000000000111",
"1001111111001010110111",
"1001111110100000001111",
"1001111111100000001111",
"1001111111110000000111",
"1101111011100010000111",
"1101110001000000000111",
"1101111111000000000111",
"1101110000000000000111",
"1101111011100000000111",
"1101111010000000011111",
"1101111010100000000111",
"1101111011000000000111",
"1101111100000000000111",
"1101111100100110000111",
"1101111000000000001111",
"1101111100000000000111",
"1101111111100010010111",
)
STRVEC_WRITEBLK = (
"1001111110001010100111",
"1001111111001010110111",
"1101111011100010000111",
"1101111101000000000111",
"1101111011100000000111",
"1101111011100010000111",
"1101111111000000100111",
"1101110001000000100111",
"1101110000000000011111",
"1101111011100000000111",
"1001111100000111010111",
"1001111100100000011111",
"1001111101101000000111",
"1001111110000000000111",
"1001111111001010110111",
"1001111110100000001111",
"1001111111100000001111",
"1001111111110000000111",
"1101111011100010000111",
"1101110001000000000111",
"1101111111000000000111",
"1101110000000000000111",
"1101111011100000000111",
"1101111010000000011111",
"1101111010100000000111",
"1101111011000000000111",
"1101111100000000000111",
"1101111100100110000111",
"1101111000000000010111",
"1101111100000000000111",
"1101111111100010010111",
)
STRVEC_READCHKSUM = (
"10111111001ZDDDDDDDDZ1",
"10111111000ZDDDDDDDDZ1",
)
STRVEC_READID = (
"10111111000ZDDDDDDDDZ1",
"10111111001ZDDDDDDDDZ1",
)
def __init__(self):
Chip.__init__(self)
# self.progmemSize = 1024 * 16
self.progmemSize = 256#XXX
def readSignature(self):
self.progressMeterInit("Reading chip ID", 0)
self.__powerOnReset()
gotID = self.__readID()
self.progressMeterFinish()
return int2byte(gotID & 0xFF) + int2byte((gotID >> 8) & 0xFF)
def erase(self):
self.progressMeterInit("Erasing chip", 0)
self.__powerOnReset()
self.__bitbangStringVectors(self.STRVEC_ERASEALL)
self.__runCommandSync(self.ISSPCMD_EXEC)
self.progressMeterFinish()
def writeProgmem(self, image):
if len(image) > self.progmemSize or len(image) % 64 != 0:
self.throwError("Invalid program memory image size %d "
"(expected <=%d and multiple of 64)" %\
(len(image), self.progmemSize))
self.progressMeterInit("Writing program memory", len(image))
self.__powerOnReset()
for blknum in range(0, len(image) // 64):
for i in range(0, 64):
self.progressMeter(blknum * 64 + i)
self.__writeByte(i, byte2int(image[blknum * 64 + i]))
vec = self.__stringVectorReplace(self.STRVEC_SETBLKNUM[0], "d", blknum)
self.__bitbangStringVector(vec)
self.__bitbangStringVectors(self.STRVEC_WRITEBLK)
self.__runCommandSync(self.ISSPCMD_EXEC)
self.progressMeterFinish()
def readProgmem(self):
self.progressMeterInit("Reading program memory", self.progmemSize)
self.__powerOnReset()
assert(self.progmemSize % 64 == 0)
image = []
for blknum in range(0, self.progmemSize // 64):
vec = self.__stringVectorReplace(self.STRVEC_SETBLKNUM[0], "d", blknum)
self.__bitbangStringVector(vec)
self.__bitbangStringVectors(self.STRVEC_READBLK)
self.__runCommandSync(self.ISSPCMD_EXEC)
for i in range(0, 64):
self.progressMeter(blknum * 64 + i)
image.append(int2byte(self.__readByte(i)))
#FIXME return_code
self.progressMeterFinish()
return b"".join(image)
def __powerDown(self):
"Turn the power to the device off"
self.printDebug("Powering device down...")
self.__runCommandSync(self.ISSPCMD_PWROFF)
self.top.hostDelay(5)
def __powerOnReset(self):
"Perform a complete power-on-reset and initialization"
self.top.vcc.setLayoutMask(0)
self.top.vpp.setLayoutMask(0)
self.top.gnd.setLayoutMask(0)
self.top.cmdSetVCCVoltage(5)
self.top.cmdSetVPPVoltage(5)
self.printDebug("Initializing supply power...")
self.top.gnd.setLayoutPins( (20,) )
self.top.vcc.setLayoutPins( (21,) )
#FIXME when to do exec?
self.__powerDown()
self.printDebug("Performing a power-on-reset...")
self.__uploadStringVector(self.STRVEC_INIT1[0])
self.__runCommandSync(self.ISSPCMD_POR)
self.printDebug("Sending vector 1...")
self.__bitbangStringVectors(self.STRVEC_INIT1[1:])
#XXX self.__runCommandSync(self.ISSPCMD_EXEC)
self.printDebug("Sending vector 2...")
self.__bitbangStringVectors(self.STRVEC_INIT2)
self.__runCommandSync(self.ISSPCMD_EXEC)
def __readID(self):
"Read the silicon ID"
self.__bitbangStringVectors(self.STRVEC_IDSETUP)
self.__runCommandSync(self.ISSPCMD_EXEC)
low = (self.__bitbangStringVector(self.STRVEC_READID[0]) >> 2) & 0xFF
high = (self.__bitbangStringVector(self.STRVEC_READID[1]) >> 2) & 0xFF
return low | (high << 8)
def __readByte(self, address):
vec = self.__stringVectorReplace(self.STRVEC_READBYTE[0], "a", address)
inputData = self.__bitbangStringVector(vec)
return (inputData >> 2) & 0xFF
def __writeByte(self, address, byte):
vec = self.__stringVectorReplace(self.STRVEC_WRITEBYTE[0], "a", address)
vec = self.__stringVectorReplace(vec, "d", byte)
self.__bitbangStringVector(vec)
def __loadCommand(self, command):
self.top.cmdFPGAWrite(0x11, command & 0xFF)
def __runCommandSync(self, command):
self.printDebug("Running synchronous command %d" % command)
self.__loadCommand(command)
self.__busyWait()
def __setBitbang(self, SDATA, SDATA_in, SCLK, SCLK_z):
value = 0
if SDATA:
value |= 0x01
if SDATA_in:
value |= 0x02
if SCLK:
value |= 0x04
if SCLK_z:
value |= 0x08
self.top.cmdFPGAWrite(0x10, value)
def __getStatusFlags(self):
self.top.cmdFPGARead(0x10)
stat = self.top.cmdReadBufferReg8()
isspState = (stat & self.STAT_ISSPSTATE) >> self.STAT_ISSPSTATE_SHIFT
sdata = bool(stat & self.STAT_SDATA)
isBusy = bool(stat & self.STAT_BUSY0) != bool(stat & self.STAT_BUSY1)
self.printDebug("isspState = 0x%02X, isBusy = %d, busyFlags = 0x%01X, sdata = %d" %\
(isspState, isBusy, (stat & (self.STAT_BUSY0 | self.STAT_BUSY1)), sdata))
return (isBusy, sdata, isspState)
def __busy(self):
(isBusy, sdata, isspState) = self.__getStatusFlags()
return isBusy
def __getSDATA(self):
(isBusy, sdata, isspState) = self.__getStatusFlags()
return int(sdata)
def __busyWait(self):
for i in range(0, 200):
if not self.__busy():
return
self.top.hostDelay(0.01)
self.throwError("Timeout in busywait. Chip not responding?")
def __stringVectorToBinary(self, vector):
binary = 0
inputMask = 0
assert(len(vector) == 22)
bit = len(vector) - 1
for b in vector:
if b == "1":
binary |= (1 << bit)
elif b == "0":
pass
elif b == "H" or b == "L" or b == "Z" or b == "D":
inputMask |= (1 << bit)
else:
assert(0)
bit -= 1
return (binary, inputMask)
def __stringVectorReplace(self, strVec, replace, data):
ret = ""
for i in range(len(strVec) - 1, -1, -1):
b = strVec[i]
if b == replace:
if (data & 1):
ret = "1" + ret
else:
ret = "0" + ret
data >>= 1
else:
ret = b + ret
return ret
def __bitbangStringVector(self, strVec):
vectorSize = len(strVec)
(vector, inputMask) = self.__stringVectorToBinary(strVec)
inputData = 0
self.__setBitbang(SDATA=0, SDATA_in=1, SCLK=0, SCLK_z=0)
for i in range(vectorSize - 1, -1, -1):
if inputMask & (1 << i):
self.__setBitbang(SDATA=0, SDATA_in=1, SCLK=1, SCLK_z=0)
self.__setBitbang(SDATA=0, SDATA_in=1, SCLK=0, SCLK_z=0)
self.top.cmdDelay(0.000001)
sdata = self.__getSDATA()
inputData |= (sdata << i)
else:
self.__setBitbang(SDATA=(vector & (1 << i)), SDATA_in=0,
SCLK=1, SCLK_z=0)
self.__setBitbang(SDATA=0, SDATA_in=0, SCLK=0, SCLK_z=0)
self.top.cmdDelay(0.000001)
return inputData
def __bitbangStringVectors(self, strVecList):
for strVec in strVecList:
self.__bitbangStringVector(strVec)
def __uploadStringVector(self, strVec):
(vector, inputMask) = self.__stringVectorToBinary(strVec)
assert(inputMask == 0)
self.top.cmdFPGAWrite(0x12, vector & 0xFF)
self.top.cmdFPGAWrite(0x13, (vector >> 8) & 0xFF)
self.top.cmdFPGAWrite(0x14, (vector >> 8) & 0xFF)
ChipDescription(
Chip_M8C_ISSP,
bitfile = "m8c-issp",
runtimeID = (0x0007, 0x01),
chipVendors = "Cypress",
description = "M8C In System Serial Programmer",
packages = ( ("M8C ISSP header", "Special adapter"), ),
comment = "Special adapter required",
broken = True
)
|
