diff --git a/artiq/examples/kasli_sysu/idle_kernel.py b/artiq/examples/kasli_sysu/idle_kernel.py
deleted file mode 100644
index 05184f731..000000000
--- a/artiq/examples/kasli_sysu/idle_kernel.py
+++ /dev/null
@@ -1,21 +0,0 @@
-from artiq.experiment import *
-
-
-class IdleKernel(EnvExperiment):
-    def build(self):
-        self.setattr_device("core")
-        self.setattr_device("led0")
-
-    @kernel
-    def run(self):
-        start_time = now_mu() + self.core.seconds_to_mu(500*ms)
-        while self.core.get_rtio_counter_mu() < start_time:
-            pass
-        self.core.reset()
-        while True:
-            self.led0.pulse(250*ms)
-            delay(125*ms)
-            self.led0.pulse(125*ms)
-            delay(125*ms)
-            self.led0.pulse(125*ms)
-            delay(250*ms)
diff --git a/artiq/examples/kasli_sysu/repository/urukul.py b/artiq/examples/kasli_sysu/repository/demo.py
similarity index 62%
rename from artiq/examples/kasli_sysu/repository/urukul.py
rename to artiq/examples/kasli_sysu/repository/demo.py
index 39b8ea3c2..bdb3b9361 100644
--- a/artiq/examples/kasli_sysu/repository/urukul.py
+++ b/artiq/examples/kasli_sysu/repository/demo.py
@@ -10,13 +10,13 @@ class UrukulTest(EnvExperiment):
         self.setattr_device("urukul0_ch2")
         self.setattr_device("urukul0_ch3")
         self.setattr_device("led0")
+        self.ttl = self.get_device("ttl16")
 
     @kernel
     def run(self):
         self.core.reset()
-        self.led0.on()
-        delay(5*ms)
-        self.led0.off()
+        self.ttl.output()
+        delay(1*us)
 
         self.urukul0_cpld.init()
         self.urukul0_ch0.init()
@@ -25,25 +25,28 @@ class UrukulTest(EnvExperiment):
         self.urukul0_ch3.init()
 
         delay(1000*us)
-        self.urukul0_ch0.set(100*MHz)
+        self.urukul0_ch0.set(10*MHz)
         self.urukul0_ch0.sw.on()
         self.urukul0_ch0.set_att(10.)
 
         delay(1000*us)
-        self.urukul0_ch1.set(10*MHz, 0.5)
+        self.urukul0_ch1.set(20*MHz, 0.5)
         self.urukul0_ch1.sw.on()
-        self.urukul0_ch1.set_att(0.)
+        self.urukul0_ch1.set_att(8.)
 
         delay(1000*us)
-        self.urukul0_ch2.set(400*MHz)
+        self.urukul0_ch2.set(30*MHz)
         self.urukul0_ch2.sw.on()
-        self.urukul0_ch2.set_att(0.)
+        self.urukul0_ch2.set_att(6.)
 
         delay(1000*us)
-        self.urukul0_ch3.set(1*MHz)
+        self.urukul0_ch3.set(40*MHz)
         self.urukul0_ch3.sw.on()
-        self.urukul0_ch3.set_att(20.)
+        self.urukul0_ch3.set_att(4.)
 
         while True:
-            self.urukul0_ch0.sw.pulse(5*ms)
-            delay(5*ms)
+            with parallel:
+                self.ttl.pulse(100*ms)
+                self.urukul0_ch0.sw.pulse(100*ms)
+            delay(100*ms)
+            self.led0.pulse(100*ms)