tools: initial version of the SPLL debugger UI

fe3b5155 · Tomasz Wlostowski · fa52cc71 · fe3b5155
Commit fe3b5155 authored May 04, 2023 by Tomasz Wlostowski
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wrpc-spll-plotter.py tools/wrpc-spll-plotter.py +91 -0

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--- a/tools/wrpc-spll-plotter.py
+++ b/tools/wrpc-spll-plotter.py
+#!/usr/bin/env python3
+
+# I'm too lazy to do a clicky-clicky GUI for this tool, so just edit the lines below
+# to configure what you want to see on the screen.
+
+PLOT_SOURCES = { "helper", "main" }
+PLOT_SIGNALS = { "y", "err", "phase_current", "phase_target" }
+PLOT_EVENTS = True
+
+import sys
+from matplotlib import animation
+from matplotlib import pyplot as plt
+import threading
+import logging
+
+class SPLLTrace:
+    def __init__(self):
+        self.data = {}
+        self.events = []
+
+    def parse( self, tokens ):
+        for t in tokens:
+            #print(t)
+            try:
+                (name, value_str) = t.split('=')
+            except ValueError:
+                continue
+
+            if name == "event":
+                self.events.append( ( value_str, self.data["sample_id"][-1] ) )
+            if not name in self.data:
+                self.data[name] = []
+
+            self.data[name].append( int( value_str ) )
+
+            #print(name, value_str)
+
+def acquisition_thread(args):
+    logging.info("ACQ Thread: starting")
+    while True:
+        l = sys.stdin.readline().rstrip('\n').rstrip('\r').lstrip(' ').lstrip('\t').rstrip(' ')
+        t = l.split(' ')
+        if(len(t) < 1):
+            continue
+        src_id = t[0]
+        if src_id in traces:
+            if traces[src_id] == None:
+                traces[src_id] = SPLLTrace()
+
+            traces[src_id].parse( t[1:] )
+    logging.info("ACQ Thread: quitting")
+
+traces = {
+    "helper" : None,
+    "main" : None,
+    "ext" : None,
+    "aux0" : None,
+    "aux1" : None,
+    "aux2" : None,
+    "aux3" : None
+};
+
+def animated_refresh(args):
+    ax.clear()
+
+    for src in traces.keys():
+        if not src in PLOT_SOURCES:
+            continue
+        trace = traces[src]
+        if trace == None:
+            continue
+        for signal in trace.data.keys():
+            if not signal in PLOT_SIGNALS:
+                continue
+            #print("Plot ", src, signal )
+            print(trace.data["sample"]  )
+            ax.plot( trace.data["sample"], trace.data[signal], label="%s:%s" % ( src, signal ) )
+            plt.legend()
+
+
+acq_thread = threading.Thread( target=acquisition_thread )
+acq_thread.start()
+
+fig, ax = plt.subplots( 1, 1 )
+anim = animation.FuncAnimation(fig, animated_refresh, interval=1000)
+plt.title("SoftPLL debug")
+plt.xlabel("Time [samples]")
+plt.ylabel("Trace value [arbitrary units]")
+plt.show()
+
+acq_thread.join()
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