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stc8: try dividers 2 and 4 for frequency calibration

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Grigori Goronzy
2018-06-27 01:10:46 +02:00
parent 8bc9d89257
commit 85e815366c
1 changed files with 9 additions and 6 deletions
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15
stcgal/protocols.py
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@ -1599,10 +1599,10 @@ class Stc8Protocol(Stc15Protocol):
sys.stdout.flush() sys.stdout.flush()
packet = bytes([0x00]) packet = bytes([0x00])
packet += struct.pack(">B", 12) packet += struct.pack(">B", 12)
packet += bytes([11, 0x00, 11*2, 0x00, 11*3, 0x00]) packet += bytes([0x00, 0x00, 23*1, 0x00, 23*2, 0x00])
packet += bytes([11*4, 0x00, 11*5, 0x00, 11*6, 0x00]) packet += bytes([23*3, 0x00, 23*4, 0x00, 23*5, 0x00])
packet += bytes([11*7, 0x00, 11*8, 0x00, 11*9, 0x00]) packet += bytes([23*6, 0x00, 23*7, 0x00, 23*8, 0x00])
packet += bytes([11*10, 0x00, 11*11, 0x00, 0x80, 0x00]) packet += bytes([23*9, 0x00, 23*10, 0x00, 255, 0x00])
self.write_packet(packet) self.write_packet(packet)
self.pulse(b"\xfe", timeout=1.0) self.pulse(b"\xfe", timeout=1.0)
response = self.read_packet() response = self.read_packet()
@ -1610,8 +1610,11 @@ class Stc8Protocol(Stc15Protocol):
raise StcProtocolException("incorrect magic in handshake packet") raise StcProtocolException("incorrect magic in handshake packet")
# select ranges and trim values # select ranges and trim values
user_trim = self.choose_range(packet, response, target_user_count) for divider in (1, 2, 4):
if user_trim == None: user_trim = self.choose_range(packet, response, target_user_count * divider)
if user_trim is not None:
break
if user_trim is None:
raise StcProtocolException("frequency trimming unsuccessful") raise StcProtocolException("frequency trimming unsuccessful")
# calibration, round 2 # calibration, round 2