From 078a37bf1f01bbe297f984d1243056e9f5ddc6c3 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Sun, 4 Oct 2015 18:30:29 +0800
Subject: [PATCH] examples: add basic DDS frequency setter with dynamic DDB
 scan

---
 examples/master/repository/dds_setter.py | 25 ++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 examples/master/repository/dds_setter.py

diff --git a/examples/master/repository/dds_setter.py b/examples/master/repository/dds_setter.py
new file mode 100644
index 000000000..ebcd72bc1
--- /dev/null
+++ b/examples/master/repository/dds_setter.py
@@ -0,0 +1,25 @@
+from operator import itemgetter
+
+from artiq import *
+
+
+class DDSSetter(EnvExperiment):
+    """DDS Setter"""
+    def build(self):
+        self.dds = dict()
+
+        ddb = self.get_ddb()
+        for k, v in sorted(ddb.items(), key=itemgetter(0)):
+            if (isinstance(v, dict)
+                    and v["type"] == "local"
+                    and v["module"] == "artiq.coredevice.dds"
+                    and v["class"] in {"AD9858", "AD9914"}):
+                self.dds[k] = {
+                    "driver": self.get_device(k),
+                    "frequency": self.get_argument("{}_frequency".format(k),
+                                                   NumberValue())
+                }
+
+    def run(self):
+        for k, v in self.dds.items():
+            v["driver"].set(v["frequency"])