| #!/usr/bin/env python3 |
| """ |
| This example uses PyTrellis to convert the text-config from bit_to_config.py back to a bitstream |
| """ |
| import pytrellis |
| import sys |
| |
| pytrellis.load_database("../../database") |
| |
| def get_next_nonblank(f): |
| while True: |
| line = f.readline() |
| if line == "": |
| return None |
| if '#' in line: |
| line = line[:line.index('#')] |
| if len(line.strip()) == 0: |
| continue |
| return line.rstrip('\n') |
| |
| |
| def main(argv): |
| block_hdr = "" |
| block_content = "" |
| chip = None |
| seen_tiles = set() |
| |
| def finalise_last_block(): |
| if block_hdr.startswith(".tile"): |
| tile_name = block_hdr.split(" ")[1] |
| chip.tiles[tile_name].read_config(block_content) |
| seen_tiles.add(tile_name) |
| |
| with open(argv[1], 'r') as cfg: |
| while True: |
| l = get_next_nonblank(cfg) |
| if l is None: |
| break |
| if l.startswith('.'): |
| finalise_last_block() |
| block_hdr = l |
| block_content = "" |
| if l.startswith(".device "): |
| chip = pytrellis.Chip(l.split(" ")[1]) |
| elif l.startswith(".comment "): |
| chip.metadata.append(l.split(" ", 1)[1]) |
| elif l.startswith(".tile "): |
| pass |
| else: |
| assert False, "unrecognised dot-statement {}".format(l.split(" ")[0]) |
| else: |
| block_content += l |
| block_content += "\n" |
| finalise_last_block() |
| |
| # Init unseen tiles with the default config |
| for tile in chip.get_all_tiles(): |
| if tile.info.name not in seen_tiles: |
| tile.read_config("") |
| |
| bs = pytrellis.Bitstream.serialise_chip(chip) |
| bs.write_bit(argv[2]) |
| |
| |
| if __name__ == "__main__": |
| main(sys.argv) |
