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#!/usr/bin/env python3
# This is a component of AXIS, a front-end for LinuxCNC
# Copyright 2004, 2005, 2006 Jeff Epler <jepler@unpythonic.net> and
# Chris Radek <chris@timeguy.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import sys, os
import linuxcnc
ini = linuxcnc.ini(sys.argv[1])
nproblems = 0
def report_problem(msg, *args):
global nproblems
nproblems += 1
if args:
print((msg % args))
else:
print(msg)
def get_int(section, key):
return int(ini.find(section, key).split()[0])
def get_float(section, key):
return float(ini.find(section, key).split()[0])
if ini.find("EMCMOT", "BASE_PERIOD") is None:
period = 0.
else:
period = get_int("EMCMOT", "BASE_PERIOD")
njoints = get_int("KINS", "JOINTS")
is_stepper = ini.find("JOINT_0", "STEPGEN_MAXVEL")
if is_stepper: print("Appears to be a stepper configuration")
else: print("Appears to be a servo configuration")
for i in range(njoints):
joint = "JOINT_%d" % i
if ini.find(joint,"INPUT_SCALE") is None: continue
scale = get_float(joint, "INPUT_SCALE")
if is_stepper:
if ini.find(joint,"STEPGEN_MAXVEL") is None: continue
vel = get_float(joint, "STEPGEN_MAXVEL")
cycles_per_step = 2
required_period = 1000000000 / vel / scale / cycles_per_step
if abs(required_period) < abs(period):
report_problem(
"Max Velocity %g and scale %g require BASE_PERIOD below %d",
vel, scale, int(required_period))
vel = get_float(joint, "MAX_VELOCITY")
headroom_vel = get_float(joint, "STEPGEN_MAXVEL")
if headroom_vel < vel * 1.01:
report_problem(
"Less than 1%% velocity headroom from %g to %g",
vel, headroom_vel)
acc = get_float(joint, "MAX_ACCELERATION")
headroom_acc = get_float(joint, "STEPGEN_MAXACCEL")
if headroom_acc < acc * 1.01:
report_problem(
"Less than 1%% acceleration headroom from %g to %g",
acc, headroom_acc)
if nproblems == 0:
print("No problems found")
elif nproblems == 1:
print("One problem found")
else:
print("%d problems found" % nproblems)
# vim:sw=4:sts=4:et
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