tools/dfu.py: Pad image data to 8 byte alignment to support L476.
Thanks to @dhylands for this patch to pad the image to 8-byte boundaries.
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@ -60,6 +60,10 @@ def build(file,targets,device=DEFAULT_DEVICE):
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for t,target in enumerate(targets):
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tdata = b''
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for image in target:
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# pad image to 8 bytes (needed at least for L476)
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pad = (8 - len(image['data']) % 8 ) % 8
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image['data'] = image['data'] + bytes(bytearray(8)[0:pad])
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#
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tdata += struct.pack('<2I',image['address'],len(image['data']))+image['data']
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tdata = struct.pack('<6sBI255s2I',b'Target',0,1, b'ST...',len(tdata),len(target)) + tdata
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data += tdata
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