Removed tech node requirement in prep for newer technology (#6)

Signed-off-by: Jeff Ng <jeffng@precisioninno.com>

Author: jeffng-or

test/memory_test.py

@@ -49,7 +49,6 @@ def test_memory(self):
 
         # These values are all hard-coded in the Memory object
         self.assertEqual(memory.rw_ports, 1)
-        self.assertEqual(memory.tech_node_nm, 7)
         self.assertEqual(memory.t_setup_ns, 0.05)
         self.assertEqual(memory.t_hold_ns, 0.05)
         self.assertEqual(memory.standby_leakage_per_bank_mW, 0.1289)

utils/class_memory.py

@@ -27,13 +27,9 @@ def __init__(self, process, sram_data):
         self.width_in_bytes = math.ceil(self.width_in_bits / 8.0)
         self.total_size = self.width_in_bytes * self.depth
 
-        self.tech_node_nm = 7
-
         self.height_um, self.width_um = get_macro_dimensions(process, sram_data)
         self.area_um2 = self.width_um * self.height_um
 
-        self.tech_node_um = self.tech_node_nm / 1000.0
-
         # Adjust to snap
         self.width_um = (
             math.ceil((self.width_um * 1000.0) / self.process.snap_width_nm)

utils/create_lef.py

@@ -191,8 +191,8 @@ def create_lef(mem, results_dir):
 
     if number_of_spare_tracks < 0:
         raise Exception(
-            "Error: not enough tracks (num pins: %d, available tracks: %d)."
-            % (number_of_pins, number_of_tracks_available)
+            "Error: not enough tracks for %s (num pins: %d, available tracks: %d)."
+            % (name, number_of_pins, number_of_tracks_available)
         )
 
     ## The next few lines of code till "pin_pitch = min.." spreads the pins in higher multiples of pin pitch if there are available tracks