Files
PBSwissMX/python/MXMotion.py

128 lines
3.8 KiB
Python

#some further usefull PMAC commands:
# list pc , 10 //list program counter during motion exec
# buffer //list allocated buffers
#the rotary stuff only works from gpascii, not gpasciiCommander
#delete rotary
#define rotary 4096 //allocates mem
#open rotary //same as open prog 0
#
# X100 Y100
# X200 Y300
# X600 Y500
# adding lines alway are acknowledged with ACK,
# if not, it means that the buffer is full
# it will acknowlegde when there is again free space.
# close
# delete rotary
#from other gpascii
#list rotary
#rotfree
#size
#b0s //start the rotary buffer in single step mode
import os, sys
sys.path.insert(0,os.path.expanduser('~/Documents/prj/SwissFEL/PBTools/'))
#import pbtools.misc.pp_comm as pp_comm -> pp_comm.PPComm
from pbtools.misc.pp_comm import PPComm
from pbtools.misc.gather import Gather
class MotionBase:
def __init__(self, comm, gather, verbose):
self.comm=comm
self.gather=gather
self.verbose=verbose
def setup_sync(self, crdId=1, prgId=2, plcId=2, mode=0, **kwargs):
'''setup the timing synchronization for the motion program
mode=0 : no sync at all
mode=1 : first sync test
this function generates the code blocks:
self.sync_wait and self.sync_run
sync_wait can be put in the program to force a timing sync
sync_run are the commands to run the whole program
'''
if mode == 0:
try:
del self.sync_prg
except AttributeError:
pass
self.sync_run = '&{crdId}b{prgId}r'''.format(prgId=prgId, crdId=crdId)
elif mode == 1:
# changes the Timebase of coord system
# modifies the timebase to start/stop a running program
# this can also be used to adjust the execution speed
# the plc for now
# - waits untis <flag> is false
# - waits raising edge of <flag> and the sets DesTimeBase=ServoPeriod
# flag ='PowerBrick[0].GpioData[0].0.1==1'
flag = 'Gate3[1].Chan[0].UserFlag==0'
prg = '''close all buffers
disable plc {plcId}
open plc {plcId}
L0=Sys.PhaseCount
send 1"sync0 %d:%d\\n",Sys.PhaseCount,Sys.PhaseCount-L0
while({flag}){{}}
send 1"sync1 %d:%d\\n",Sys.PhaseCount,Sys.PhaseCount-L0
L1=Sys.PhaseCount
while(1)
{{
if({flag})
{{
PowerBrick[0].GpioData[0].16.1=1
Coord[{crdId}].DesTimeBase=Sys.ServoPeriod
send 1"sync2 %d:%d\\n",Sys.PhaseCount,Sys.PhaseCount-L1
break
}}
}}
disable plc {plcId}
close
'''.format(plcId=plcId, crdId=crdId, flag=flag)
comm=self.comm
if comm is not None:
gpascii=comm.gpascii
gpascii.send_block(prg)
self.sync_prg = 'Coord[{crdId}].DesTimeBase=0'.format(prgId=prgId, plcId=plcId, crdId=crdId)
self.sync_run = 'enable plc {plcId};&{crdId}b{prgId}r'''.format(prgId=prgId, plcId=plcId, crdId=crdId)
elif mode == 2:
# code block to insert in the program
# - waits untis <flag> is false
# - waits raising edge of <flag> and the sets DesTimeBase=ServoPeriod
# flag ='PowerBrick[0].GpioData[0].0.1==1'
flag = 'Gate3[1].Chan[0].UserFlag==0'
prg = '''
//L0=Sys.PhaseCount
//send 1"sync0 %d:%d\\n",Sys.PhaseCount,Sys.PhaseCount-L0
while({flag}){{}}
//send 1"sync1 %d:%d\\n",Sys.PhaseCount,Sys.PhaseCount-L0
//L1=Sys.PhaseCount
while(1)
{{
if({flag})
{{
//PowerBrick[0].GpioData[0].16.8=255
//send 1"sync2 %d:%d\\n",Sys.PhaseCount,Sys.PhaseCount-L1
break
}}
}}
'''.format(plcId=plcId, crdId=crdId, flag=flag)
self.sync_prg = prg
self.sync_run = '&{crdId}b{prgId}r'''.format(prgId=prgId, plcId=plcId, crdId=crdId)
def run(self):
'runs the code sync_run which has been generated with setup_sync()'
comm = self.comm
gpascii = comm.gpascii
try:
cmd=self.sync_run
except AttributeError:
raise 'Need to call setup sync before'
gpascii.send_block(cmd)