all test are running for real now. And its only 3 am

dram/resources/scripts/tests.py

@@ -514,6 +514,25 @@ def write_to_read_and_read_to_write(connection):
 	return TestSuceeded()
 
 
+@test
+def read_holds_dll_constraint_after_sref(connection):
+	cursor = connection.cursor()
+	query = """SELECT Phases.ID,PhaseBegin,PhaseName,TBankGroup from Phases INNER JOIN Transactions ON Phases.Transact = Transactions.ID AND TBank = :bank
+	 		   WHERE PhaseName IN ('RD', 'RDA', 'SREF')  ORDER BY PhaseBegin"""
+
+
+	for bankNumber in range(dramconfig.numberOfBanks):
+		cursor.execute(query,{"bank": bankNumber})
+		lastRow = cursor.fetchone()
+		for currentRow in cursor:
+		 	if(currentRow[2] in ["RD","RDA"] and lastRow[2] == 'SREF'):
+				srefEndToRead = currentRow[1] - (lastRow[1] - dramconfig.clk)
+		 		if(srefEndToRead < dramconfig.tXSRDLL ):
+		 			return TestFailed("Read {0} starts {1} after end of sref {2}. Minimum time is {3}".
+		 				format(currentRow[0],formatTime(srefEndToRead),lastRow[0], formatTime(dramconfig.tXSRDLL)))
+		lastRow = currentRow
+	return TestSuceeded()
+
 @test 
 def sref_active_for_minimal_time(connection):
 	"""Checks that SREF is active for a minimal time (JEDEC 229, P. 41)"""