litex/litex/build/dfu.py

32 lines
1.0 KiB
Python

#
# This file is part of LiteX.
#
# Copyright (c) 2020 Florent Kermarrec <florent@enjoy-digital.fr>
# SPDX-License-Identifier: BSD-2-Clause
import subprocess
from litex.build.tools import write_to_file
from litex.build.generic_programmer import GenericProgrammer
# DFUProg ------------------------------------------------------------------------------------------
class DFUProg(GenericProgrammer):
needs_bitreverse = False
def __init__(self, vid, pid, alt=None):
self.vid = vid
self.pid = pid
self.alt = alt
def load_bitstream(self, bitstream_file, reset=True):
subprocess.call(["cp", bitstream_file, bitstream_file + ".dfu"])
subprocess.call(["dfu-suffix", "-v", self.vid, "-p", self.pid, "-a", bitstream_file + ".dfu"])
flash_cmd = ["dfu-util", "--download", bitstream_file + ".dfu"]
if reset:
flash_cmd.append("-R")
if self.alt is not None:
flash_cmd.extend(["-a", str(self.alt)])
subprocess.call(flash_cmd)