Error while execute DFU example in Mesh SDK

Question

Hi all, 
 I am testing DFU example in Mesh SDK . I follow this tutorial : http://infocenter.nordicsemi.com/index.jsp . But when I execute to step 4 : 
 dfu$ python device_page_generator.py -d nrf52832_xxAA -sd "s132_5.0.0" 
 I get this error : 
 
 Any suggestion for this ? I use NRF52832 DK . Thank !!!

Thomas Stenersen · Answer

Hi Giang, The issue is that the public key isn’t being converted to a bytearray properly. Applying the following diff will solve the problem diff --git a/tools/dfu/device_page_generator.py b/tools/dfu/device_page_generator.py index 9fa9e6435..a3aa74028 100644 --- a/tools/dfu/device_page_generator.py +++ b/tools/dfu/device_page_generator.py @@ -66,7 +66,7 @@ class DevicePageEntry(object): #print("Type: ", type(data).__name__) if not (isinstance(bl_info_type, BLInfoType) and (isinstance(data, bytearray) or isinstance(data, str))): - raise TypeError + raise TypeError("Invalid type %r" % (type(data))) self.bl_info_type = bl_info_type if (isinstance(data, str)): @@ -96,7 +96,7 @@ class DevicePage(object): self.softdevice = softdevice def generate_entries(self, platform, softdevice, bootloader_config): - public_key = bootloader_config["public_key"] \ + public_key = bytearray.fromhex(bootloader_config["public_key"]) \ if "public_key" in bootloader_config else None if public_key: self.entries.append( Additionally, there was an issue where the device_page_generator.py would always output the same filename ( device_page_nrf52832_xxAA_s132_6.0.0.hex ). That is fixed with the following diff: diff --git a/tools/dfu/device_page_generator.py b/tools/dfu/device_page_generator.py index a3aa74028..0e8eb9e3d 100644 --- a/tools/dfu/device_page_generator.py +++ b/tools/dfu/device_page_generator.py @@ -207,7 +207,7 @@ def main(): for plt in platforms: plt_str += ''.join(plt["name"]) + ' ' - SOFTDEVICE = "s132_5.0.0" + SOFTDEVICE = "s132_6.0.0" DEVICE = "nrf52832_xxAA" parser = argparse.ArgumentParser(description="Device Page Generator") parser.add_argument("-d", "--device", help="Select device: " + ''.join(plt_str), @@ -217,12 +217,15 @@ def main(): parser.add_argument("-c", "--bootloader-config", default="bootloader_config_default.json", help="Bootloader configuration file") - parser.add_argument("-o", "--output-file", help="Output hex file", - default="bin/device_page_%s_%s.hex" % (DEVICE, SOFTDEVICE)) + parser.add_argument("-o", "--output-file", + help="Output hex file (default: bin/device_page_%s_%s.hex)." % ("", ""), + default=False) parser.add_argument("--all", default=False, action="store_true", help=("Writes all known device page combinations to " + "\'bin/\'")) args = parser.parse_args() + if not args.output_file: + args.output_file = "bin/device_page_%s_%s.hex" % (args.device, args.softdevice) dirname = os.path.dirname(args.output_file) if not os.path.exists(dirname): For your convenience I’ve uploaded a copy of the script with the changes applied: Fullscreen 2438.device_page_generator.py Download # Copyright (c) 2010 - 2018, Nordic Semiconductor ASA # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are met: # # 1. Redistributions of source code must retain the above copyright notice, this # list of conditions and the following disclaimer. # # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # 3. Neither the name of Nordic Semiconductor ASA nor the names of its # contributors may be used to endorse or promote products derived from this # software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. import argparse import enum import struct import intelhex import sys import json import os PACKAGE_PARENT = '..' SCRIPT_DIR = os.path.dirname(os.path.realpath(os.path.join(os.getcwd(), os.path.expanduser(__file__)))) sys.path.append(os.path.normpath(os.path.join(SCRIPT_DIR, PACKAGE_PARENT))) from deviceutil.deviceutil import \ get_application_limits, \ make_bootloader_for_platforms, \ set_softdevices_for_platforms, \ load_softdevies, \ load_platforms WORD_SIZE = 4 class BLInfoType(enum.IntEnum): INVALID = 0x00 ECDSA_PUBLIC_KEY = 0x01 VERSION = 0x02 JOURNAL = 0x03 FLAGS = 0x04 SEGMENT_SD = 0x10 SEGMENT_BL = 0x11 SEGMENT_APP = 0x12 LAST = 0x7FFF class DevicePageEntry(object): def __init__(self, bl_info_type, data): #print("Type: ", type(data).__name__) if not (isinstance(bl_info_type, BLInfoType) and (isinstance(data, bytearray) or isinstance(data, str))): raise TypeError("Invalid type %r" % (type(data))) self.bl_info_type = bl_info_type if (isinstance(data, str)): data = bytearray.fromhex(data) self.data = self.pad(data) @property def word_count(self): return (len(self.data) + WORD_SIZE) // WORD_SIZE def pad(self, data): pad_byte_count = (WORD_SIZE - len(data) % WORD_SIZE) % WORD_SIZE if pad_byte_count > 0: data += bytearray([0xFF] * pad_byte_count) return data def serialize(self): return (bytearray(struct.pack('", ""), default=False) parser.add_argument("--all", default=False, action="store_true", help=("Writes all known device page combinations to " + "\'bin/\'")) args = parser.parse_args() if not args.output_file: args.output_file = "bin/device_page_%s_%s.hex" % (args.device, args.softdevice) dirname = os.path.dirname(args.output_file) if not os.path.exists(dirname): os.mkdir(dirname) if args.all: write_all(platforms, softdevices, args) print("Wrote for device pages for all devices.") elif args.softdevice and args.device: write_specific_page(platforms, softdevices, args) print("Wrote device page for %s with the %s SoftDevice to %s." % (args.device, args.softdevice, args.output_file)) if __name__ == "__main__": main() Best, Thomas

a.wallwitz · Answer

Check the beginning of my ticket here: https://devzone.nordicsemi.com/f/nordic-q-a/34378/mesh-dfu-example-not-working-no-serial-communication-for-linux-and-more This is how I fixed it. " 
 - Using the device_page_generator.py the string for the public key was read as unicode so I had to add this part: 
 if(isinstance(data, unicode)): data = data.encode('utf-8') 
 after line 65. So I got this running and could generate device pages. Even though I can not imagine that I am the only one having this problem O_o 
 "

Error while execute DFU example in Mesh SDK

Top Replies