fnet_counter.py

# This script is licensed under BSD License, see file LICENSE.txt.
#
# (c) TASKING Germany GmbH, 2023
 
"""
This example shows FNet Counter controller initialization and usage.
 
(c) iSYSTEM Labs, 2022
"""
import isystem.connect as ic
 
winidea_id = ''
 
 
try:
    # connect to last winIDEA
    connMgr = ic.ConnectionMgr()
    connMgr.connect(ic.CConnectionConfig().instanceId(winidea_id))
 
    # initialize FNet Counter Controller
    SessionCtrl = ic.CSessionCtrl(connMgr)
    FNetCtrl = ic.CFNetCtrl(connMgr)
    CounterCtrl = FNetCtrl.counter('Root.COUNTER1')
 
    
 
    SessionCtrl.end() #end first for cfg to take effect
    SessionCtrl.begin_prepare()
 
    
 
    # use FNetTrigger 5 in the example
    FTrigQ = 5
    FTrigGen = 6
 
    optCounterOp = CounterCtrl.op()
    # qualifier - starts on FTrig, not enabled from start
    CounterCtrl.op_qualifier_enable(FTrigQ)
    CounterCtrl.op_qualifier_enable_on_start(False)
 
    # configure channel 1
    optChannel = optCounterOp.opt_channel(nChannel = 1)
    #count every 10us, or TC4
    optChannel.set_count_on(bCount = True, nPeriod_us = 10, nFEvent = 4)
    # no trigger generation on increment
    optChannel.set_on_increment(nFTrig = 0) 
    # active from start, restart on TC5, suspend on TC6, resume on TC7
    optChannel.set_active(bStart = True, nFTrigRestart = 5, nFTrigSuspend = 6, nFTrigResume = 7)
    # counter has a limit of 1000, generates TC8 when reached, does not auto-restart
    optChannel.set_limit(bLimit = True, nLimit = 1000, nFTrig = 8, bRestart = False)
    # record changes
    optChannel.set_record(bOnChange = True)
 
    # apply new operation settings and restart operation
    FNetCtrl.op_apply()
 
    
    nCount = CounterCtrl.ctrl_get_FTrig_count(FTrigQ)
    # reset count on a specific FTrig counter
    CounterCtrl.ctrl_reset_FTrig_count(nFTrig = 1) 
    # reset count on a number of FTrig counters
    # CounterCtrl.ctrl_reset_FTrig_count(vnChannels = {1, 2}) #maybe later if necessary
 
    # get the value from the specific channel counter
    # reset count on a specific channel
    CounterCtrl.ctrl_reset  (nChannel = 1)
    CounterCtrl.ctrl_suspend(nChannel = 1)
    CounterCtrl.ctrl_resume (nChannel = 1)
    #CounterCtrl.ctrl_reset  ({vnChannels = {1, 2}}) #maybe later
    #CounterCtrl.ctrl_suspend({vnChannels = {1, 2}}) #maybe later
    #CounterCtrl.ctrl_resume ({vnChannels = {1, 2}}) #maybe later
    Status = CounterCtrl.ctrl_get_status(nChannel = 1)
    print(f"count: {Status.m_nCount}, active: {Status.m_bActive}")
 
except Exception as ex:
    print(ex)