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"""
# TOP2049 Open Source programming suite
#
# Microchip8 - 18f97j60 family - 8bit PIC MCU
#
# Copyright (c) 2013 Pavel Stemberk <stemberk@gmail.com>
#
# 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.chips.microchip8.microchip8_18_common import *
class microchip8_18f97j60family(Chip_Microchip8_18_common):
voltageVDD = 3
voltageVPP = 3
delayP5A = 0.000000040 # Delay between 4-bit command operand and next 4-bit command
delayP9 = 0.0034 # SCK High time (minimum programming time)
delayP10 = 0.000005 # SCK Low time after programming (high-voltage discharge time)
delayP11 = 0.475 # Delay to allow self-timed data write or bulk erase to occur
delayP12 = 0.0004 # Input data hold time from nMCLR/Vpp rise
delayP19 = 0.000001 # Delay from first nMCLR fall to first PGC rise for key sequence on PGD
delayP20 = 0.00000004 # Delay from last PGC fall for key sequence on PGD to second nMCLR rise
def __init__(self,
chipPackage, chipPinVCC, chipPinsVPP, chipPinGND,
signature,
flashPageSize, flashPages,
eepromPageSize, eepromPages,
fuseBytes
):
Chip_Microchip8_18_common.__init__(self,
chipPackage, chipPinVCC, chipPinsVPP, chipPinGND,
signature,
flashPageSize, flashPages,
eepromPageSize, eepromPages,
fuseBytes)
def enterPM(self, force=False):
if self.isInPmMode and not force:
return
"Enter HV programming mode. Vdd first entry mode"
self.applyVCC(False)
self.applyVPP(False)
self.applyGND(False)
self.setPins(0, 0)
#self.top.cmdSetVCCVoltage(self.voltageVDD)
self.top.cmdSetVPPVoltage(self.voltageVPP)
self.applyGND(True)
self.applyVCC(True)
self.top.hostDelay(self.delayP13)
self.applyVPP(True)
self.applyVPP(False)
self.top.hostDelay(self.delayP19)
self.setTopProgrammerDelays()
#program entry code
#print("sending enterpm")
self.top.cmdFPGAWrite(0x18,0xFF)
self.top.hostDelay(self.delayP20)
self.applyVPP(True)
self.top.hostDelay(self.delayP12)
self.isInPmMode = True
def erase(self):
self.progressMeterInit("Erasing chip", 0)
self.enterPM(True)
self.executeCode(self.getCodeAddrToTBLPTR(0x3C0004))
self.send4bitWriteInstruction(self.CMD_TW, 0x0080)
self.executeCode((0x0000,))
self.sendCommand(1)
self.top.hostDelay(self.delayP11 + self.delayP10)
for i in range(0,4):
self.sendCommand(1)
self.top.flushCommands()
self.progressMeterFinish()
def writeSequentialBlock(self, startAddr, image, size, infoText):
if len(image) > size:
self.throwError("Invalid flash image size %d (expected <=%d)" % \
(len(image), self.userIDLocationSize))
self.enterPM()
self.executeCode((0x8EA6, 0x9CA6))
self.progressMeterInit(infoText, len(image) // 8)
self.executeCode(self.getCodeAddrToTBLPTR(startAddr))
for blockAddr in range(0, len(image), 8):
self.write8bytes(image[blockAddr:])
self.progressMeter(blockAddr)
self.progressMeterFinish()
self.exitPM()
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