examples: add RTIO demo

examples/ttl_test.py

@@ -0,0 +1,32 @@
+from artiq.language.units import *
+from artiq.language.core import *
+from artiq.devices import corecom_serial, core, ttl_core
+
+class TTLTest(MPO):
+	parameters = "a b c d"
+
+	@kernel
+	def run(self):
+		delay(10*us)
+		i = 0
+		while i < 100000:
+			with parallel:
+				with sequential:
+					self.a.pulse(50*us)
+					self.b.pulse(50*us)
+				with sequential:
+					self.c.pulse(10*us)
+					self.d.pulse(20*us)
+			i += 1
+
+if __name__ == "__main__":
+	with corecom_serial.CoreCom() as com:
+		coredev = core.Core(com)
+		exp = TTLTest(
+			core=coredev,
+			a=ttl_core.TTLOut(core=coredev, channel=0),
+			b=ttl_core.TTLOut(core=coredev, channel=1),
+			c=ttl_core.TTLOut(core=coredev, channel=2),
+			d=ttl_core.TTLOut(core=coredev, channel=3),
+		)
+		exp.run()