66 lines
1.9 KiB
Python
66 lines
1.9 KiB
Python
#!/usr/bin/env python
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import re
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import sys
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def extract_firmware_version():
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with open('main/CommandHandler.cpp', 'r') as file:
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for line in file:
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if 'const char FIRMWARE_VERSION[6] = ' in line:
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# The line format is `const char FIRMWARE_VERSION[6] = "1.7.6";`
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# Split by double quote and get the second element
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version = line.split('"')[1]
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return version
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booloaderData = open("build/bootloader/bootloader.bin", "rb").read()
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partitionData = open("build/partitions.bin", "rb").read()
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appData = open("build/nina-fw.bin", "rb").read()
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# remove everything between certificate markers to save space. There might be comments and other information.
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certsData = b""
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with open("certificates/data/roots.pem", "rb") as certs_file:
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in_cert = False
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for line in certs_file:
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if line.startswith(b"-----BEGIN CERTIFICATE-----"):
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in_cert = True
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if in_cert:
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certsData += line
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if line.startswith(b"-----END CERTIFICATE-----"):
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in_cert = False
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# calculate the output binary size, app offset
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outputSize = 0x30000 + len(appData)
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if outputSize % 1024:
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outputSize += 1024 - (outputSize % 1024)
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# allocate and init to 0xff
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outputData = bytearray(b"\xff") * outputSize
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# copy data: bootloader, partitions, app
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for i in range(0, len(booloaderData)):
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outputData[0x1000 + i] = booloaderData[i]
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for i in range(0, len(partitionData)):
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outputData[0x8000 + i] = partitionData[i]
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for i in range(0, len(appData)):
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outputData[0x30000 + i] = appData[i]
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for i in range(0, len(certsData)):
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outputData[0x10000 + i] = certsData[i]
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# zero terminate the pem file
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outputData[0x10000 + len(certsData)] = 0
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version = extract_firmware_version()
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outputFilename = f"NINA_W102-{version}.bin"
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if len(sys.argv) > 1:
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outputFilename = sys.argv[1]
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# write out
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with open(outputFilename, "w+b") as f:
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f.seek(0)
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f.write(outputData)
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