ppk-v11-hangs-on-linux-bug-report patch

0000-README.md

Nordic PPK Linux Patches

This gist has patches to the Nordic PPK software to help it run under Linux.

Some other hints:

• If you get whining about unable to find JLINKARM.dll, modify the JLink.py file in pynrfjprog to set the DEFAULT_SEGGER_ROOT_PATH to where you actually installed your JLink software:

    pip show pynrfjprog
    vi ~/.local/lib/python2.7/site-packages/pynrfjprog/JLink.py
  

• For the non-responsive plotting issue you want 0001-ui-ppk_plotter-fix-starvation-on-Linux.patch

0001-ui-ppk_plotter-fix-starvation-on-Linux.patch

From 30f59ddc72c66720a66112723ecd78fe7b5a04a6 Mon Sep 17 00:00:00 2001
From: "Peter A. Bigot" <[email protected]>
Date: Wed, 3 Jan 2018 13:18:08 -0600
Subject: [PATCH] ui/ppk_plotter: fix starvation on Linux

Problem identification and general approach as in devzone topic below.
Using a condvar made more sense to me, and this seems to work.

See: https://devzone.nordicsemi.com/question/162707/ppk-v11-hangs-on-linux-bug-report/
---
 ui/ppk_plotter.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/ui/ppk_plotter.py b/ui/ppk_plotter.py
index bc36f72..d2ca15b 100644
--- a/ui/ppk_plotter.py
+++ b/ui/ppk_plotter.py
@@ -77,6 +77,7 @@ class ppk_plotter():
         self.alive = True
         self.logfile_name = 'ppk_avg.csv'
         self.started_log = False
+        self.update_condvar = threading.Condition();
         self.log_stopped = False
         self.update_log = False
 
@@ -269,7 +270,10 @@ class ppk_plotter():
                 except Exception as e:
                     print(str(e))
             # Just set update log after every sample
+            self.update_condvar.acquire();
             self.update_log = True
+            self.update_condvar.notify()
+            self.update_condvar.release()
 
         else:
             # Trigger data received as raw adc float, with range flag prepended
@@ -314,6 +318,9 @@ class ppk_plotter():
     def do_logging(self):
         ts = 0
         while(self.alive):
+            self.update_condvar.acquire()
+            while not (self.update_log or self.log_stopped):
+                self.update_condvar.wait()
             try:
                 if(self.update_log and not self.log_stopped):
                     ts += self.plotdata.avg_interval
@@ -331,6 +338,7 @@ class ppk_plotter():
                         pass
             except Exception as e:
                 print(str(e))
+            self.update_condvar.release()
 
     def medfilt(self, x, k):
         """Apply a length-k median filter to a 1D array x.
-- 
2.7.4