From 3d6fab676f4349e72d583fca54e75a44da0c8419 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Wed, 17 Sep 2014 19:54:20 +0800
Subject: [PATCH] examples: add RTIO loopback

---
 examples/rtio_loopback.py | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 examples/rtio_loopback.py

diff --git a/examples/rtio_loopback.py b/examples/rtio_loopback.py
new file mode 100644
index 000000000..f2d009ee9
--- /dev/null
+++ b/examples/rtio_loopback.py
@@ -0,0 +1,31 @@
+from artiq.language.core import *
+from artiq.language.units import *
+from artiq.devices import corecom_serial, core, rtio_core
+
+
+class RTIOLoopback(AutoContext):
+    parameters = "i o"
+
+    def report(self, n):
+        print(n)
+
+    @kernel
+    def run(self):
+        with parallel:
+            with sequential:
+                for i in range(4):
+                    delay(25*ns)
+                    self.o.pulse(25*ns)
+            self.i.count_rising(1*us)
+        self.report(self.i.sync())
+
+
+if __name__ == "__main__":
+    with corecom_serial.CoreCom() as com:
+        coredev = core.Core(com)
+        exp = RTIOLoopback(
+            core=coredev,
+            i=rtio_core.RTIOCounter(core=coredev, channel=0),
+            o=rtio_core.RTIOOut(core=coredev, channel=1)
+        )
+        exp.run()