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Added ability to specify the offset of the partition table #13

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Added ability to specify the offset of the partition table #13

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dc1b4f4
fix: LoadFirmwareImage not found
jacopodl Jan 30, 2024
fe7cb83
feat: added the ability to specify the partition table offset
jacopodl Jan 30, 2024
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4 changes: 2 additions & 2 deletions esp32_firmware_reader.py
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Original file line number Diff line number Diff line change
Expand Up @@ -27,8 +27,8 @@ def print_verbose(verbose, value):
if verbose:
print(value)

def read_partition_table(fh, verbose=False):
fh.seek(0x8000)
def read_partition_table(fh, verbose=False, p_offset=0x8000):
fh.seek(p_offset)
partition_table = {}

print_verbose(verbose, "reading partition table...")
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7 changes: 6 additions & 1 deletion esp32_image_parser.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@
import os, argparse
from makeelf.elf import *
from esptool import *
from esptool.bin_image import *
from esp32_firmware_reader import *
from read_nvs import *

Expand Down Expand Up @@ -220,6 +221,7 @@ def main():
arg_parser.add_argument('-output', help='Output file name')
arg_parser.add_argument('-nvs_output_type', help='output type for nvs dump', type=str, choices=["text","json"], default="text")
arg_parser.add_argument('-partition', help='Partition name (e.g. ota_0)')
arg_parser.add_argument('-partition_offset', help='Set partition offset(HEX) (e.g. 0x8000)')
arg_parser.add_argument('-v', default=False, help='Verbose output', action='store_true')

args = arg_parser.parse_args()
Expand All @@ -231,7 +233,10 @@ def main():
verbose = True

# parse that ish
part_table = read_partition_table(fh, verbose)
if "partition_offset" in args:
args.partition_offset = int(args.partition_offset, 16)

part_table = read_partition_table(fh, verbose, p_offset=args.partition_offset)

if args.action in ['dump_partition', 'create_elf', 'dump_nvs']:
if (args.partition is None):
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