toprammer/libtoprammer/chips/microchip8/microchip8_splittedPMarea_hasResetPC.py

"""
#    TOP2049 Open Source programming suite
#
#    pic8_splittedPMarea - file for newer 8bit PIC MCUs
#
#    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_splittedPMarea import *

class microchip8_splittedPMarea_hasResetPC(microchip8_splittedPMarea):
	
	CMD_RESET_ADDRESS	 = 0x16
    
	userIDLocationSize = 4
	voltageVDD = 3
	voltageVPP = 8.5
    
	logicalFlashProgramMemorySize = 0x8000
	logicalFlashConfigurationMemorySize = 0x8000    
    
	def __init__(self,
		     chipPackage, chipPinVCC, chipPinsVPP, chipPinGND,
		     signature,
		     flashPageSize, flashPages,
		     eepromPageSize, eepromPages,
		     fuseBytes):
		microchip8_splittedPMarea.__init__(self, chipPackage, chipPinVCC,
						   chipPinsVPP, chipPinGND, signature,
						   flashPageSize, flashPages,
						   eepromPageSize, eepromPages, fuseBytes)

	def setPC(self, address):
		if(self.isInsideProgramMemoryArea):
			if(address >= self.logicalFlashProgramMemorySize):
				raise TOPException('Cannot set PC to address inside PM {:x}'.format(address))
			if(address < self.PC):
				self.resetPC()
				self.setPC(address)
		else:
			if(address < self.logicalFlashProgramMemorySize):
				raise TOPException('Cannot set PC to address outside PM {:x}'.format(address))
			if(address < self.PC):
				self.resetPC()
				self.enterConfigArea()
				self.setPC(address)
		while(self.PC != address):
			self.incrementPC(1)
		    
	def resetPC(self):
		if hasattr(self, 'osccalAddr'):
			if not hasattr(self, 'CMD_RESET_ADDRESS'):
				print("reset instruction is not supported")
				self.exitPM()
				self.enterPM()
		else:
			self.sendCommand(0, 0, 0, self.CMD_RESET_ADDRESS)
		self.PC = 0
		self.isInsideProgramMemoryArea = True