1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
# Combine bootloader, partition table and application into a final binary.
import os, sys
sys.path.append(os.getenv("IDF_PATH") + "/components/partition_table")
import gen_esp32part
OFFSET_BOOTLOADER_DEFAULT = 0x1000
OFFSET_PARTITIONS_DEFAULT = 0x8000
def load_sdkconfig_value(filename, value, default):
value = "CONFIG_" + value + "="
with open(filename, "r") as f:
for line in f:
if line.startswith(value):
return line.split("=", 1)[1]
return default
def load_sdkconfig_hex_value(filename, value, default):
value = load_sdkconfig_value(filename, value, None)
if value is None:
return default
return int(value, 16)
def load_sdkconfig_str_value(filename, value, default):
value = load_sdkconfig_value(filename, value, None)
if value is None:
return default
return value.strip().strip('"')
def load_partition_table(filename):
with open(filename, "rb") as f:
return gen_esp32part.PartitionTable.from_binary(f.read())
# Extract command-line arguments.
arg_sdkconfig = sys.argv[1]
arg_bootloader_bin = sys.argv[2]
arg_partitions_bin = sys.argv[3]
arg_application_bin = sys.argv[4]
arg_output_bin = sys.argv[5]
arg_output_uf2 = sys.argv[6]
# Load required sdkconfig values.
idf_target = load_sdkconfig_str_value(arg_sdkconfig, "IDF_TARGET", "").upper()
offset_bootloader = load_sdkconfig_hex_value(
arg_sdkconfig, "BOOTLOADER_OFFSET_IN_FLASH", OFFSET_BOOTLOADER_DEFAULT
)
offset_partitions = load_sdkconfig_hex_value(
arg_sdkconfig, "PARTITION_TABLE_OFFSET", OFFSET_PARTITIONS_DEFAULT
)
# Load the partition table.
partition_table = load_partition_table(arg_partitions_bin)
max_size_bootloader = offset_partitions - offset_bootloader
max_size_partitions = 0
offset_application = 0
max_size_application = 0
# Inspect the partition table to find offsets and maximum sizes.
for part in partition_table:
if part.name == "nvs":
max_size_partitions = part.offset - offset_partitions
elif part.type == gen_esp32part.APP_TYPE and offset_application == 0:
offset_application = part.offset
max_size_application = part.size
# Define the input files, their location and maximum size.
files_in = [
("bootloader", offset_bootloader, max_size_bootloader, arg_bootloader_bin),
("partitions", offset_partitions, max_size_partitions, arg_partitions_bin),
("application", offset_application, max_size_application, arg_application_bin),
]
file_out = arg_output_bin
# Write output file with combined firmware.
cur_offset = offset_bootloader
with open(file_out, "wb") as fout:
for name, offset, max_size, file_in in files_in:
assert offset >= cur_offset
fout.write(b"\xff" * (offset - cur_offset))
cur_offset = offset
with open(file_in, "rb") as fin:
data = fin.read()
fout.write(data)
cur_offset += len(data)
print(
"%-12s@0x%06x % 8d (% 8d remaining)"
% (name, offset, len(data), max_size - len(data))
)
if len(data) > max_size:
print(
"ERROR: %s overflows allocated space of %d bytes by %d bytes"
% (name, max_size, len(data) - max_size)
)
sys.exit(1)
print("%-22s% 8d" % ("total", cur_offset))
# Generate .uf2 file if the SoC has native USB.
if idf_target in ("ESP32S2", "ESP32S3"):
sys.path.append(os.path.join(os.path.dirname(__file__), "../../tools"))
import uf2conv
families = uf2conv.load_families()
uf2conv.appstartaddr = 0
uf2conv.familyid = families[idf_target]
with open(arg_application_bin, "rb") as fin, open(arg_output_uf2, "wb") as fout:
fout.write(uf2conv.convert_to_uf2(fin.read()))
|
