stc8: try dividers 2 and 4 for frequency calibration
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@ -1599,10 +1599,10 @@ class Stc8Protocol(Stc15Protocol):
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sys.stdout.flush()
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packet = bytes([0x00])
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packet += struct.pack(">B", 12)
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packet += bytes([11, 0x00, 11*2, 0x00, 11*3, 0x00])
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packet += bytes([11*4, 0x00, 11*5, 0x00, 11*6, 0x00])
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packet += bytes([11*7, 0x00, 11*8, 0x00, 11*9, 0x00])
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packet += bytes([11*10, 0x00, 11*11, 0x00, 0x80, 0x00])
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packet += bytes([0x00, 0x00, 23*1, 0x00, 23*2, 0x00])
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packet += bytes([23*3, 0x00, 23*4, 0x00, 23*5, 0x00])
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packet += bytes([23*6, 0x00, 23*7, 0x00, 23*8, 0x00])
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packet += bytes([23*9, 0x00, 23*10, 0x00, 255, 0x00])
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self.write_packet(packet)
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self.pulse(b"\xfe", timeout=1.0)
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response = self.read_packet()
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@ -1610,8 +1610,11 @@ class Stc8Protocol(Stc15Protocol):
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raise StcProtocolException("incorrect magic in handshake packet")
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# select ranges and trim values
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user_trim = self.choose_range(packet, response, target_user_count)
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if user_trim == None:
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for divider in (1, 2, 4):
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user_trim = self.choose_range(packet, response, target_user_count * divider)
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if user_trim is not None:
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break
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if user_trim is None:
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raise StcProtocolException("frequency trimming unsuccessful")
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# calibration, round 2
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