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scanengine-3/hardware/helios_registers.py
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Thomas K Ales [MSE] 880b05fe86 working state commit
2026-09-25 08:13:03 -05:00

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Python
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"""Helios status-register bit definitions (Tables 8-1, 8-2, 8-3).
Kept out of the driver and out of the Qt apps so that a command-line
diagnostic can decode a register without importing either.
Each entry: bit_number -> (severity, description, comment)
severity: 'C' = critical error, 'S' = status, 'I' = input error, '' = none
"""
LER_FLAGS = {
0: ('C', 'Controller temperature failure (resonator/SHG/q-switch)',
'Check CCE register for details'),
1: ('S', 'Trigger input active',
'High when trigger signal applied or laser in continuous pulsing'),
2: ('I', 'Command error',
'Unknown command sent to controller'),
3: ('C', 'Laser disable pin open (utility connector)',
'Shuts down pump diodes; reset LER 0 required to restart'),
4: ('C', 'Internal hardware failure',
'Contact Coherent'),
5: ('C', 'Over voltage laser diode',
'Check for open circuit or voltage spikes'),
6: ('C', 'Internal hardware failure',
'Contact Coherent'),
7: ('C', 'Controller temperature failure at pump diodes',
'Check LCE register for details'),
8: ('S', 'Laser start delay (60 s warmup)',
'Laser cannot be started yet; status error LED flashing'),
9: ('C', 'Internal hardware failure',
'Check environment for strong EMI; contact Coherent'),
10: ('C', 'Internal hardware failure',
'Check environment for strong EMI; contact Coherent'),
11: ('C', 'Internal hardware failure',
'Check environment for strong EMI; contact Coherent'),
12: ('S', 'Slave controller error (remote input)',
'Valid only for master controller coupled with a slave'),
13: ('', 'Laserhead not found',
'Head not connected / not found; check EMI; ignore for double-electronic slave'),
14: ('', 'Laserhead I\u00b2C acknowledge error',
'Check environment for strong EMI; ignore for double-electronic slave'),
15: ('S', 'Range-Error (not critical)',
'Input value out of range'),
}
LCE_FLAGS = {
0: ('C', 'Pump diode over/under temperature',
'Limit exceeded (<10\u00b0C or >60\u00b0C); check head cooling'),
1: ('C', 'Internal hardware failure',
'Contact Coherent'),
2: ('C', 'Pump diode temperature out of range',
'Actual temp >2\u00b0C off setpoint for >1 min'),
3: ('C', 'Pump diode current critical',
'Current set too close to current limit'),
4: ('C', 'Pump diode temperature out of limit',
'Pump diode temperature is out of limit'),
5: ('S', 'Door switch open',
'Close utility connector pin 2 permanently to pin 9 (GND)'),
7: ('C', 'Pump diode NTC error',
'Invalid temperature measured or NTC broken'),
8: ('C', 'Laser diode power stage over temperature',
'Temp <10\u00b0C or >65\u00b0C at controller; check controller cooling'),
9: ('C', 'Internal hardware failure',
'Check environment for strong EMI; contact Coherent'),
10: ('C', 'Internal hardware failure',
'Check environment for strong EMI; contact Coherent'),
11: ('C', 'Internal hardware failure',
'Check environment for strong EMI; contact Coherent'),
15: ('S', 'Range-Error (not critical)',
'Input value out of range'),
}
CCE_FLAGS = {
0: ('C', 'Resonator/SHG under/over temperature',
'Limit exceeded (<10\u00b0C or >60\u00b0C); temperature controller deactivated'),
1: ('C', 'Resonator/SHG NTC failure',
'Temperature sensor broken or disconnected'),
2: ('C', 'Resonator/SHG temperature out of range',
'Actual temp >2\u00b0C off setpoint for >1 min'),
3: ('C', 'Q-switch ADC / temperature readout failure',
'Internal hardware error or no NTC connected'),
4: ('C', 'Q-switch temperature out of range',
'Actual temp >2\u00b0C off setpoint for >1 min'),
5: ('C', 'Q-switch under/over temperature',
'Limit exceeded (<10\u00b0C or >60\u00b0C); temperature controller deactivated'),
7: ('C', 'Q-switch NTC failure',
'Internal hardware error or no NTC connected'),
8: ('C', 'Internal hardware failure',
'Contact Coherent'),
15: ('S', 'Range-Error (not critical)',
'Input value out of range'),
}
SEVERITY_LABEL = {'C': '[CRIT]', 'S': '[STAT]', 'I': '[INPT]', '': '[INFO]'}
def decode_register(flags_dict: dict, value: int) -> list:
"""Return list of (bit, severity, description, comment) for each set bit."""
active = []
for bit, (sev, desc, comment) in flags_dict.items():
if value & (1 << bit):
active.append((bit, sev, desc, comment))
return active