# in toprammer class IO_ihex

def toBinary(self, ihexData):
		bin = []
		for i in range(0,0xFFFF,1):
			bin += chr(0xFF)
		try:
			lines = ihexData.splitlines()
			hiAddr = 0
			for line in lines:
				line = line.strip()
				if len(line) == 0:
					continue
				if len(line) < 11 or (len(line) - 1) % 2 != 0:
					raise TOPException("Invalid IHEX format (length error)")
				if line[0] != ':':
					raise TOPException("Invalid IHEX format (magic error)")
				count = int(line[1:3], 16)
				if len(line) != count * 2 + 11:
					raise TOPException("Invalid IHEX format (count error)")
				addr = (int(line[3:5], 16) << 8) | int(line[5:7], 16)
				addr |= hiAddr << 16
				type = int(line[7:9], 16)
				checksum = 0
				for i in range(1, len(line), 2):
					byte = int(line[i:i+2], 16)
					checksum = (checksum + byte) & 0xFF
				checksum = checksum & 0xFF
#				if checksum != 0:
#					raise TOPException("Invalid IHEX format (checksum error)")

				if type == self.TYPE_EOF:
					break
				if type == self.TYPE_ELAR:
					if count != 2:
						raise TOPException("Invalid IHEX format (inval ELAR)")
					hiAddr = (int(line[9:11], 16) << 8) | int(line[11:13], 16)
					continue
				if type == self.TYPE_DATA:
					if len(bin) < addr + count: # Reallocate
						bin += ['\0'] * (addr + count - len(bin))
					for i in range(9, 9 + count * 2, 2):
						byte = chr(int(line[i:i+2], 16))
#						if bin[(i - 9) / 2 + addr] != '\0':
#							raise TOPException("Invalid IHEX format (corruption)")
						bin[(i - 9) / 2 + addr] = byte
					continue
				raise TOPException("Invalid IHEX format (unsup type %d)" % type)
		except ValueError:
			raise TOPException("Invalid IHEX format (digit format)")
		return "".join(bin)


# in chip_m2764a.py
	def writeEEPROM(self, image):
#		if len(image) != 0x2000:
#			self.throwError("Invalid EPROM image size %d (expected %d)" %\
#				(len(image), 0x2000))

		self.top.cmdSetVCCXVoltage(5)
		self.top.cmdSetVPPVoltage(12)
		self.top.vccx.setLayoutPins( (38,) )
		self.top.vpp.setLayoutPins( (5, 6, 7, 9, 11) )
		self.top.gnd.setLayoutPins( (24,) )

		self.progressMeterInit("Writing EPROM", 0x2000)
		self.__setEG(E=1, G=1)
		for addr in range(0, 0x2000):
			self.progressMeter(addr)
			if ord(image[addr]) != 0xFF:
				self.__writeData(addr, ord(image[addr]))
		self.__setEG(E=1, G=1)
		self.progressMeterFinish()

	def __readData(self, addr):
		self.__loadAddr(addr)
		self.__setEG(E=0, G=0)
		self.top.cmdFPGAReadByte()
		stat = self.top.cmdReadStatusReg()
		return stat[0]

	def __writeData(self, addr, data):
		self.__setEG(E=0, G=1)
		self.__loadAddr(addr)
		self.__loadData(data)
		self.__loadPPulseLen(1)
		self.__runCommandSync(self.PROGCMD_PPULSE)
		for i in range(0, 25):
			r = ord(self.__readData(addr))
			if r == data:
				break
			self.__setEG(E=0, G=1)
			self.__runCommandSync(self.PROGCMD_PPULSE)
		else:
			self.throwError("Failed to program 0x%04X (got 0x%02X, expected 0x%02X)" %\
				(addr, r, data))
		self.__setEG(E=0, G=1)
		self.__loadPPulseLen(3 * (i + 1))
		self.__runCommandSync(self.PROGCMD_PPULSE)