Commit 021bad31 authored by Dean Camera's avatar Dean Camera
Browse files

Upgrade HID bootloader Python host app to cross-platform hidapi.

parent 7c8d2486
#!/usr/bin/env python
"""
LUFA Library
Copyright (C) Dean Camera, 2018.
......@@ -15,12 +17,12 @@
Example:
python hid_bootloader_loader.py at90usb1287 Mouse.hex
Requires the pywinusb (https://pypi.python.org/pypi/pywinusb/) and
IntelHex (https://pypi.python.org/pypi/IntelHex/) libraries.
Requires the hidapi (https://pypi.python.org/pypi/hidapi) and
IntelHex (https://pypi.python.org/pypi/IntelHex) libraries.
"""
import sys
from pywinusb import hid
import hid
from intelhex import IntelHex
......@@ -40,26 +42,29 @@ device_info_map['at90usb82'] = {'page_size': 128, 'flash_kb': 8}
def get_hid_device_handle():
hid_device_filter = hid.HidDeviceFilter(vendor_id=0x03EB,
product_id=0x2067)
all_hid_devices = hid.enumerate()
valid_hid_devices = hid_device_filter.get_devices()
lufa_hid_devices = [d for d in all_hid_devices if d['vendor_id'] == 0x03EB and d['product_id'] == 0x2067]
if len(valid_hid_devices) is 0:
if len(lufa_hid_devices) is 0:
return None
else:
return valid_hid_devices[0]
device_handle = hid.device()
device_handle.open_path(lufa_hid_devices[0]['path'])
return device_handle
def send_page_data(hid_device, address, data):
# Bootloader page data should be the HID Report ID (always zero) followed
# by the starting address to program, then one device's flash page worth
# of data
output_report_data = [0]
output_report_data.extend([address & 0xFF, address >> 8])
output_report_data.extend(data)
output_report_data = bytearray(65)
output_report_data[0] = 0
output_report_data[1] = address & 0xFF
output_report_data[2] = address >> 8
output_report_data[3 : ] = data
hid_device.send_output_report(output_report_data)
hid_device.write(output_report_data)
def program_device(hex_data, device_info):
......@@ -70,8 +75,7 @@ def program_device(hex_data, device_info):
sys.exit(1)
try:
hid_device.open()
print("Connected to bootloader.")
print("Connected to bootloader.", flush=True)
# Program in all data from the loaded HEX file, in a number of device
# page sized chunks
......@@ -83,7 +87,7 @@ def program_device(hex_data, device_info):
# address and convert it to a regular list of bytes
page_data = [hex_data[i] for i in current_page_range]
print("Writing address 0x%04X-0x%04X" % (current_page_range[0], current_page_range[-1]))
print("Writing address 0x%04X-0x%04X" % (current_page_range[0], current_page_range[-1]), flush=True)
# Devices with more than 64KB of flash should shift down the page
# address so that it is 16-bit (page size is guaranteed to be
......@@ -95,7 +99,7 @@ def program_device(hex_data, device_info):
# Once programming is complete, start the application via a dummy page
# program to the page address 0xFFFF
print("Programming complete, starting application.")
print("Programming complete, starting application.", flush=True)
send_page_data(hid_device, 0xFFFF, [0] * device_info['page_size'])
finally:
......@@ -103,6 +107,11 @@ def program_device(hex_data, device_info):
if __name__ == '__main__':
if len(sys.argv) != 3:
print("Usage:")
print("\t{} device file.hex".format(sys.argv[0]))
sys.exit(1)
# Load the specified HEX file
try:
hex_data = IntelHex(sys.argv[2])
......
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