mirror of
https://github.com/openglow-org/forgefirm.git
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69 lines
2.1 KiB
Python
69 lines
2.1 KiB
Python
#!/usr/bin/env python3
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# Copyright 2026 514 LLC d/b/a OpenGlow
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# Written by Scott Wiederhold
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# https://community.openglow.org
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# SPDX-License-Identifier: MIT
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"""Fan/coolant bench: snapshots the fan PWMs, tachs and coolant readings,
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drives M8 (cut-profile fans), then M9 (cooldown -> idle), and prints
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each snapshot for the tach readbacks to be judged. Needs the controller
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running with forgectrl's cooling engine. Runs on the board or from a
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host (gfbench: GF_HOST)."""
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import socket
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import time
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from gfbench import HOST, board as _board, degc
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def board(cmd):
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return _board(cmd).strip().replace('\n', ' ')
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ATTRS = ('head/air_assist_pwm head/air_assist_tach head/purge_air '
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'thermal/exhaust_pwm thermal/tach_exhaust '
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'thermal/intake_pwm thermal/tach_intake_1 thermal/tach_intake_2 '
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'thermal/water_pump_on thermal/tec_on pic/water_temp_1 pic/water_temp_2')
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def snap(tag):
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vals = board('cd /sys/glowforge && cat ' + ATTRS).split()
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keys = [a.split('/')[-1] for a in ATTRS.split()]
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print(tag)
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for k, v in zip(keys, vals):
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print(' %-18s %s' % (k, v))
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s = socket.create_connection((HOST, 23), timeout=5)
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s.settimeout(0.15)
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def drain():
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out = b''
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try:
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while True:
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d = s.recv(4096)
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if not d: break
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out += d
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except socket.timeout: pass
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return out.decode('ascii', 'replace')
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def cmd(l, w=0.4):
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s.sendall(l.encode() + b'\n'); time.sleep(w); return drain().strip()
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time.sleep(0.5); drain()
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snap('--- baseline (driver idle profile)')
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w2 = board('cat /sys/glowforge/pic/water_temp_2')
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print('water_temp_2 = %s -> %.1f C' % (w2, degc(w2)))
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print()
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print('=== M8: cut-profile fans ON (loud) ===')
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print('M8:', cmd('M8'))
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time.sleep(4) # spin-up
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snap('--- during M8')
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print()
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print('=== M9: cooldown (fans stay on ~15 s) ===')
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print('M9:', cmd('M9'))
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time.sleep(3)
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snap('--- during cooldown (should still be at run values)')
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time.sleep(14) # past the 15 s cooldown
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snap('--- after cooldown (should be idle: AA 204, EF 0, IF 0)')
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s.sendall(b'?'); time.sleep(0.3)
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t = drain()
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print('grbl:', t[t.rfind('<'):t.rfind('>') + 1] if '<' in t else t)
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