verilog_data-1 / The-OpenROAD-Project_OpenROAD-flow-scripts /tools /FakeRAM2.0 /test /process_test.py
Add batch 5 (Luthiraa_TALOS-V2, dawsonjon_fpu, The-OpenROAD-Project_OpenROAD-flow-scripts, antonblanchard_microwatt, alexforencich_verilog-i2c)
784ee2c verified | #!/usr/bin/env python3 | |
| import os | |
| import sys | |
| import unittest | |
| sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "utils"))) | |
| from class_process import Process | |
| class ProcessTest(unittest.TestCase): | |
| """Unit test for Process class""" | |
| def setUp(self): | |
| """Sets up base_data with example config data""" | |
| self._base_data = { | |
| "tech_nm": 7, | |
| "voltage": 0.7, | |
| "metal_prefix": "M", | |
| "metal_layer": "M4", | |
| "pin_width_nm": 24, | |
| "pin_pitch_nm": 48, | |
| "metal_track_pitch_nm": 48, | |
| "contacted_poly_pitch_nm": 54, | |
| "column_mux_factor": 1, | |
| "fin_pitch_nm": 27, | |
| "manufacturing_grid_nm": 1, | |
| "snap_width_nm": 190, | |
| "snap_height_nm": 1400, | |
| } | |
| def test_process(self): | |
| """Tests process fields based on example config""" | |
| process = Process(self._base_data) | |
| self.assertIsNotNone(process) | |
| self.assertEqual(process.get_tech_nm(), self._base_data["tech_nm"]) | |
| self.assertTrue(isinstance(process.get_voltage(), float)) | |
| self.assertEqual(process.get_voltage(), self._base_data["voltage"]) | |
| self.assertEqual(process.get_metal_prefix(), self._base_data["metal_prefix"]) | |
| self.assertEqual(process.get_metal_layer(), self._base_data["metal_layer"]) | |
| self.assertEqual(process.get_pin_width_nm(), self._base_data["pin_width_nm"]) | |
| self.assertEqual(process.get_pin_pitch_nm(), self._base_data["pin_pitch_nm"]) | |
| self.assertEqual( | |
| process.get_metal_track_pitch_nm(), self._base_data["metal_track_pitch_nm"] | |
| ) | |
| self.assertEqual( | |
| process.get_contacted_poly_pitch(), | |
| self._base_data["contacted_poly_pitch_nm"], | |
| ) | |
| self.assertEqual(process.get_fin_pitch(), self._base_data["fin_pitch_nm"]) | |
| self.assertEqual( | |
| process.get_manufacturing_grid_nm(), | |
| self._base_data["manufacturing_grid_nm"], | |
| ) | |
| self.assertEqual(process.get_snap_width_nm(), self._base_data["snap_width_nm"]) | |
| self.assertEqual( | |
| process.get_snap_height_nm(), self._base_data["snap_height_nm"] | |
| ) | |
| # check nm -> um | |
| self.assertEqual(process.get_tech_um(), process.get_tech_nm() / 1000.0) | |
| self.assertEqual( | |
| process.get_pin_width_um(), process.get_pin_width_nm() / 1000.0 | |
| ) | |
| self.assertEqual( | |
| process.get_pin_pitch_um(), process.get_pin_pitch_nm() / 1000.0 | |
| ) | |
| self.assertEqual( | |
| process.get_metal_track_pitch_um(), | |
| process.get_metal_track_pitch_nm() / 1000.0, | |
| ) | |
| self.assertEqual( | |
| process.get_manufacturing_grid_um(), | |
| process.get_manufacturing_grid_nm() / 1000.0, | |
| ) | |
| self.assertEqual( | |
| process.get_column_mux_factor(), self._base_data["column_mux_factor"] | |
| ) | |
| def test_process_optional_snap(self): | |
| """Tests defaulting when snap_width and snap_height are not defined""" | |
| process_data = self._base_data.copy() | |
| del process_data["snap_width_nm"] | |
| del process_data["snap_height_nm"] | |
| process = Process(process_data) | |
| self.assertEqual(process.get_tech_nm(), self._base_data["tech_nm"]) | |
| self.assertEqual(process.get_voltage(), float(self._base_data["voltage"])) | |
| self.assertEqual(process.get_metal_prefix(), self._base_data["metal_prefix"]) | |
| self.assertEqual(process.get_metal_layer(), self._base_data["metal_layer"]) | |
| self.assertEqual(process.get_pin_width_nm(), self._base_data["pin_width_nm"]) | |
| self.assertEqual(process.get_pin_pitch_nm(), self._base_data["pin_pitch_nm"]) | |
| self.assertEqual( | |
| process.get_metal_track_pitch_nm(), self._base_data["metal_track_pitch_nm"] | |
| ) | |
| self.assertEqual( | |
| process.get_contacted_poly_pitch(), | |
| self._base_data["contacted_poly_pitch_nm"], | |
| ) | |
| self.assertEqual(process.get_fin_pitch(), self._base_data["fin_pitch_nm"]) | |
| self.assertEqual( | |
| process.get_manufacturing_grid_nm(), | |
| self._base_data["manufacturing_grid_nm"], | |
| ) | |
| self.assertEqual(process.get_snap_width_nm(), 1) | |
| self.assertEqual(process.get_snap_height_nm(), 1) | |
| self.assertEqual(process.get_x_offset(), process.get_pin_pitch_um()) | |
| self.assertEqual(process.get_y_offset(), process.get_pin_pitch_um()) | |
| self.assertEqual( | |
| process.get_y_step(), | |
| process.get_y_offset() | |
| - (process.get_y_offset() % process.get_manufacturing_grid_um()) | |
| + (process.get_pin_width_um() / 2.0), | |
| ) | |
| def test_process_misaligned_pin_mfg_grid_pitch(self): | |
| """ | |
| Tests detection that pin pitch is not a multiple of the metal track | |
| pitch | |
| """ | |
| process_data = self._base_data.copy() | |
| process_data["pin_pitch_nm"] = 54 | |
| process_data["metal_track_pitch_nm"] = 6 | |
| process_data["manufacturing_grid_nm"] = 5 | |
| with self.assertRaises(Exception): | |
| process = Process(process_data) | |
| def test_process_misaligned_pin_track_pitch(self): | |
| """ | |
| Tests detection that pin pitch is not a multiple of the metal track | |
| pitch | |
| """ | |
| process_data = self._base_data.copy() | |
| process_data["pin_pitch_nm"] = 54 | |
| process_data["metal_track_pitch_nm"] = 5 | |
| with self.assertRaises(Exception): | |
| process = Process(process_data) | |
| def test_bitcell_override(self): | |
| """Tests when bitcell size overrides computation""" | |
| process_data = self._base_data.copy() | |
| process_data["bitcell_width_um"] = 123.0 | |
| process_data["bitcell_height_um"] = 456.0 | |
| process = Process(process_data) | |
| self.assertTrue(process.has_defined_bitcell_size()) | |
| bitcell_width, bitcell_height = process.get_bitcell_dimensions() | |
| self.assertEqual(bitcell_width, process_data["bitcell_width_um"]) | |
| self.assertEqual(bitcell_height, process_data["bitcell_height_um"]) | |
| def test_y_step_calc(self): | |
| """ | |
| Tests y_step calculation | |
| y_step = pin_pitch (snapped to grid) + pin_width / 2 | |
| """ | |
| process = Process(self._base_data) | |
| process._calc_y_step() | |
| # 0.048 + (0.024 / 2) = 0.06 | |
| self.assertEqual(process.get_y_step(), 0.06) | |
| # change to different pitch that previously didn't get snapped right | |
| # and try again | |
| base_data = self._base_data.copy() | |
| base_data["metal_track_pitch_nm"] = 23 | |
| base_data["pin_pitch_nm"] = 2 * base_data["metal_track_pitch_nm"] | |
| base_data["pin_width_nm"] = 12 | |
| process = Process(base_data) | |
| # 0.046 + (0.024 / 2) = 0.06 | |
| process._calc_y_step() | |
| self.assertEqual(process.get_y_step(), 0.052) | |
| if __name__ == "__main__": | |
| unittest.main() | |