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Tools: apj_tool.py: python3 fixes

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Peter Barker 2019-04-18 15:29:16 +10:00 committed by Peter Barker
parent 54a505dade
commit bec9b6dda4
1 changed files with 6 additions and 3 deletions
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9
Tools/scripts/apj_tool.py
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@ -87,8 +87,11 @@ class embedded_defaults(object):
def find(self):
'''find defaults in firmware'''
# these are the magic headers from AP_Param.cpp
magic_str = "PARMDEF"
magic_str = "PARMDEF".encode('ascii')
param_magic = [ 0x55, 0x37, 0xf4, 0xa0, 0x38, 0x5d, 0x48, 0x5b ]
def u_ord(c):
return ord(c) if sys.version_info.major < 3 else c
while True:
i = self.firmware[self.offset:].find(magic_str)
if i == -1:
@ -96,7 +99,7 @@ class embedded_defaults(object):
return None
matched = True
for j in range(len(param_magic)):
if ord(self.firmware[self.offset+i+j+8]) != param_magic[j]:
if u_ord(self.firmware[self.offset+i+j+8]) != param_magic[j]:
matched = False
break
if not matched:
@ -121,7 +124,7 @@ class embedded_defaults(object):
sys.exit(1)
new_fw = self.firmware[:self.offset+18]
new_fw += struct.pack("<H", length)
new_fw += contents
new_fw += contents.encode('ascii')
new_fw += self.firmware[self.offset+20+length:]
self.firmware = new_fw
self.length = len(contents)