36 lines
908 B
Python
36 lines
908 B
Python
import os, struct, sys, time
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from serial import Serial
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import chipDB
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class IspBase():
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def programChip(self, flashData):
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self.curExtAddr = -1
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self.chip = chipDB.getChipFromDB(self.getSignature())
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if self.chip == False:
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raise IspError("Chip with signature: " + str(self.getSignature()) + "not found")
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self.chipErase()
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print("Flashing %i bytes" % len(flashData))
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self.writeFlash(flashData)
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print("Verifying %i bytes" % len(flashData))
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self.verifyFlash(flashData)
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#low level ISP commands
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def getSignature(self):
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sig = []
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sig.append(self.sendISP([0x30, 0x00, 0x00, 0x00])[3])
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sig.append(self.sendISP([0x30, 0x00, 0x01, 0x00])[3])
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sig.append(self.sendISP([0x30, 0x00, 0x02, 0x00])[3])
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return sig
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def chipErase(self):
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self.sendISP([0xAC, 0x80, 0x00, 0x00])
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class IspError():
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def __init__(self, value):
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self.value = value
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def __str__(self):
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return repr(self.value)
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