mirror of https://github.com/openXC7/prjxray.git
85 lines
2.1 KiB
Python
85 lines
2.1 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2017-2020 The Project X-Ray Authors.
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#
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# Use of this source code is governed by a ISC-style
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# license that can be found in the LICENSE file or at
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# https://opensource.org/licenses/ISC
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#
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# SPDX-License-Identifier: ISC
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import os
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import random
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random.seed(int(os.getenv("SEED"), 16))
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from prjxray import util
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from prjxray.db import Database
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def gen_sites():
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'''
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IOB18S: main IOB of a diff pair
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IOB18M: secondary IOB of a diff pair
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IOB18: not a diff pair. Relatively rare (at least in ROI...2 of them?)
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Focus on IOB18S to start
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'''
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db = Database(util.get_db_root(), util.get_part())
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grid = db.grid()
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for tile_name in sorted(grid.tiles()):
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loc = grid.loc_of_tilename(tile_name)
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gridinfo = grid.gridinfo_at_loc(loc)
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for site_name, site_type in gridinfo.sites.items():
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if site_type == 'IOB18S':
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yield tile_name, site_name
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def write_params(params):
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pinstr = 'tile,val,site,pin\n'
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for tile, (site, val, pin) in sorted(params.items()):
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pinstr += '%s,%s,%s,%s\n' % (tile, val, site, pin)
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open('params.csv', 'w').write(pinstr)
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def run():
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sites = list(gen_sites())
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print(
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'''
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`define N_DI {}
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module top(input wire [`N_DI-1:0] di);
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wire [`N_DI-1:0] di_buf;
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'''.format(len(sites)))
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params = {}
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print('''
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(* KEEP, DONT_TOUCH *)
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LUT6 dummy_lut();''')
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for idx, ((tile_name, site_name), isone) in enumerate(zip(
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sites, util.gen_fuzz_states(len(sites)))):
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params[tile_name] = (site_name, isone, "di[%u]" % idx)
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print(
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'''
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(* KEEP, DONT_TOUCH *)
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IBUF #(
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) ibuf_{site_name} (
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.I(di[{idx}]),
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.O(di_buf[{idx}])
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);'''.format(site_name=site_name, idx=idx))
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if isone:
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print(
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'''
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(* KEEP, DONT_TOUCH *)
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PULLUP #(
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) pullup_{site_name} (
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.O(di[{idx}])
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);'''.format(site_name=site_name, idx=idx))
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print("endmodule")
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write_params(params)
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if __name__ == '__main__':
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run()
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