diff --git a/examples/nexys_a7/large_io_core_uart/test.py b/examples/nexys_a7/large_io_core_uart/test.py
index 5d68cf2..f9bee51 100644
--- a/examples/nexys_a7/large_io_core_uart/test.py
+++ b/examples/nexys_a7/large_io_core_uart/test.py
@@ -7,16 +7,20 @@ for i in range(n_tests):
     print(f"-> Beginning test {i} of {n_tests}")
     probe4 = randint(0, 1)
     m.io_core.probe4.set(probe4)
+    assert m.io_core.probe4.get() == probe4
     assert m.io_core.probe0.get() == probe4
 
     probe5 = randint(0, 3)
     m.io_core.probe5.set(probe5)
+    assert m.io_core.probe5.get() == probe5
     assert m.io_core.probe1.get() == probe5
 
     probe6 = randint(0, 255)
     m.io_core.probe6.set(probe6)
+    assert m.io_core.probe6.get() == probe6
     assert m.io_core.probe2.get() == probe6
 
     probe7 = randint(0, (2**20)-1)
     m.io_core.probe7.set(probe7)
+    assert m.io_core.probe7.get() == probe7
     assert m.io_core.probe3.get() == probe7