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blue-loader-python
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Fix MCU firmware loading

This commit is contained in:
BTChip 2016-05-20 08:35:13 +02:00
parent 09d04da1d8
commit 1946b6351e
1 changed files with 4 additions and 3 deletions
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7
ledgerblue/hexLoader.py
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@ -22,12 +22,13 @@ import struct
import hashlib import hashlib
class HexLoader: class HexLoader:
def __init__(self, card, cla=0xF0, secure=False, key=None): def __init__(self, card, cla=0xF0, secure=False, key=None, relative=True):
self.card = card self.card = card
self.cla = cla self.cla = cla
self.secure = secure self.secure = secure
self.key = key self.key = key
self.iv = "\x00" * 16; self.iv = "\x00" * 16;
self.relative = relative
def crc16(self, data): def crc16(self, data):
TABLE_CRC16_CCITT = [ TABLE_CRC16_CCITT = [
@ -132,7 +133,7 @@ class HexLoader:
def load(self, erase_u8, max_length_per_apdu, hexAreas, bootaddr): def load(self, erase_u8, max_length_per_apdu, hexAreas, bootaddr):
initialAddress = 0 initialAddress = 0
if len(hexAreas) <> 0: if (len(hexAreas) <> 0) and self.relative:
initialAddress = hexAreas[0].getStart() initialAddress = hexAreas[0].getStart()
sha256 = hashlib.new('sha256') sha256 = hashlib.new('sha256')
for area in hexAreas: for area in hexAreas:
@ -162,7 +163,7 @@ class HexLoader:
def run(self, hexAreas, bootaddr): def run(self, hexAreas, bootaddr):
initialAddress = 0 initialAddress = 0
if len(hexAreas) <> 0: if (len(hexAreas) <> 0) and self.relative:
initialAddress = hexAreas[0].getStart() initialAddress = hexAreas[0].getStart()
self.boot(bootaddr - initialAddress) self.boot(bootaddr - initialAddress)