Added 2600B TSP-Link Triggering Example

Instrument_Examples/Series_2600/Triggering/TSPLink_Trigger.tsp

@@ -0,0 +1,79 @@
+--[[
+ 
+     Purpose:  show how an event on one 2600B can be "echoed" to second 2600B
+     
+     Setup:  need two 2600B that have TSP-LINK connectors.
+             Assign node 1 and 2 and use the cross-over cable to link them.
+             On front panel, use the reset under TSPLINK to verify the link.
+             
+     Method:  Use a timer as stimulus for digital IO active lo pulse.
+              Cause 10 pulses from DIO line 1 on rear DB25 connector.
+              Echo the timer event_id on tsp-link for digital IO on second node to also pulse.        
+
+    Written By: Keithley Applications Engineering (Andrea Clary)
+    From the TekTalk Forum: https://my.tek.com/en/tektalk/source-measure-units/9b622205-b095-ee11-a81c-000d3a37f78a
+ 
+ 
+]]--
+
+function ConfigTSPLinkTriggers(nodenum)
+    node[nodenum].tsplink.trigger[1].clear()
+    node[nodenum].tsplink.trigger[1].mode        = tsplink.TRIG_FALLING
+    node[nodenum].tsplink.trigger[2].clear()
+    node[nodenum].tsplink.trigger[2].mode        = tsplink.TRIG_FALLING
+    node[nodenum].tsplink.trigger[3].clear()
+    node[nodenum].tsplink.trigger[3].mode        = tsplink.TRIG_FALLING
+end
+
+-- *********************
+--
+--  Main Program
+--
+-- *********************
+
+reset()
+errorqueue.clear()
+
+if tsplink.state == "offline" then
+    nodesFound = tsplink.reset()
+    if nodesFound ~= 2 then
+        print(string.format("Error: Found %d Nodes. Expecting 2.", nodesFound))
+        exit()
+    end
+end
+
+-- for each tsplink node    
+ConfigTSPLinkTriggers(1)
+ConfigTSPLinkTriggers(2)
+
+-- configure a timer on node 1 to issue 10 events
+-- upon receipt of one tsplink event_id
+nodenum = 1
+node[nodenum].trigger.timer[1].delay = 1e-3
+node[nodenum].trigger.timer[1].stimulus = node[nodenum].tsplink.trigger[1].EVENT_ID
+node[nodenum].trigger.timer[1].count = 10
+node[nodenum].trigger.timer[1].passthrough = false
+node[nodenum].trigger.timer[1].clear()
+
+-- echo the timer event on tsplink two
+node[nodenum].tsplink.trigger[2].stimulus = node[nodenum].trigger.timer[1].EVENT_ID
+
+-- digital IO *could* use timer event directly on this same node
+-- but it can also make use of the locally available tsplink two   
+node[nodenum].digio.trigger[1].clear()
+node[nodenum].digio.trigger[1].mode = digio.TRIG_FALLING
+node[nodenum].digio.trigger[1].pulsewidth = 100e-6
+--node[nodenum].digio.trigger[1].stimulus = node[nodenum].trigger.timer[1].EVENT_ID
+node[nodenum].digio.trigger[1].stimulus = node[nodenum].tsplink.trigger[2].EVENT_ID  
+
+-- this remote node cannot "see" the timer events on other node
+-- this remote node must use the echoed event on tsplink two    
+nodenum = 2
+node[nodenum].digio.trigger[1].clear()
+node[nodenum].digio.trigger[1].mode = digio.TRIG_FALLING 
+node[nodenum].digio.trigger[1].pulsewidth = 100e-6
+node[nodenum].digio.trigger[1].stimulus = node[nodenum].tsplink.trigger[2].EVENT_ID    
+
+
+-- issue an assert to get the party started
+node[1].tsplink.trigger[1].assert()