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# change below sets to new ones, values are in Hz
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new_freq_low_limit = [18_000_000, 25_000_000, 400_000_000, 420_000_000, 430_000_000, 440_000_000, 470_000_000]
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new_freq_high_limit = [24_999_900, 399_999_900, 419_999_900, 429_999_900, 439_999_900, 469_999_900, 1300_000_000]
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##--------------------- do not modify below this line ---------------------------------------------------
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import os,sys,struct
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print('Running',os.path.basename(sys.argv[0]),'mod...')
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if len(new_freq_low_limit)!=7: print('Do not change number of entries! Exiting'); exit(0)
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if len(new_freq_high_limit)!=7: print('Do not change number of entries! Exiting'); exit(0)
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fw = bytearray(open(sys.argv[1],'rb').read())
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current_steps = struct.unpack_from('<IIIIIII', fw, offset=0xE074) ; print('Old freq ranges:', [f'{i*10} Hz' for i in current_steps])
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current_steps = struct.unpack_from('<IIIIIII', fw, offset=0xE090) ; print('Old freq ranges:', [f'{i*10} Hz' for i in current_steps])
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## REPLACE LOW FREQS
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if fw[0xE074:0xE074+(4*7)] == bytearray(struct.pack('<IIIIIII', *[5000000, 10800000, 13600000, 17400000, 35000000, 40000000, 47000000])):
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print('OK, lofreq table found, replacing')
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fw[0xE074:0xE074+(4*7)] = bytearray(struct.pack('<IIIIIII', *[i//10 for i in new_freq_low_limit]))
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else:
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print('Error, orginal lofreq table doesnt match default values. Wrong fw ver?')
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if fw[0xE090:0xE090+(4*7)] == bytearray(struct.pack('<IIIIIII', *[7600000, 13599990, 17399990, 34999990, 39999990, 46999990, 60000000])):
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print('OK, hifrew table found, replacing')
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fw[0xE090:0xE090+(4*7)] = bytearray(struct.pack('<IIIIIII', *[i//10 for i in new_freq_high_limit]))
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else:
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print('Error, orginal lofreq table doesnt match default values. Wrong fw ver?')
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current_steps = struct.unpack_from('<IIIIIII', fw, offset=0xE074) ; print('New freq ranges:', [f'{i*10} Hz' for i in current_steps])
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current_steps = struct.unpack_from('<IIIIIII', fw, offset=0xE090) ; print('New freq ranges:', [f'{i*10} Hz' for i in current_steps])
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open(sys.argv[1],'wb').write(fw)
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