tests: Improve lps interlock test

test/test_lps_ilock.py

@@ -7,7 +7,7 @@ class TestLPSIlock:
     def test_simulated(self, prefix, board):
         for state in ["RESET", "INIT", "ON"]:
             assert change_state(prefix, state)
-        
+
         write_reg(board, "0xF05", "0x1")
         write_reg(board, "0xF06", "0x1")
 
@@ -16,10 +16,12 @@ class TestLPSIlock:
         sleep(1)
         assert caget(prefix + ":LPS-ILCKSTAT") == 1
 
+        write_reg(board, "0xF05", "0x7")
         write_reg(board, "0xF06", "0x0")
-        write_reg(board, "0xF05", "0x0")
 
-        run_evr_pulses("TR-" + prefix, 2)
+        run_evr_pulses("TR-" + prefix)
+        sleep(1)
+        run_evr_pulses("TR-" + prefix)
 
         sleep(1)
         assert caget(prefix + ":LPS-ILCKSTAT") == 0