SDK 15 and Mesh 2.0 Generate a DFU file with nrfutil - ValueError

[iotlight]

We used nRF5_SDK_15.0.0_a53641a and nrf5_SDK_for_Mesh_v2.0.0_src.

We are following DFU quick start guide http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.meshsdk.v0.10.0%2Findex.html

For nRF52:

mesh-sdk$ nrfutil dfu genpkg --application bin/blinky/blinky_nrf52832_xxAA_s132_5.0.0.hex \

--company-id 0x00000089 \

--application-id 1 \

--application-version 2 \

--key-file private_key.txt \

--sd-req 0x009D \

--mesh dfu_test.zip

We used "--company-id 0x00000089 \" to match Step 2 public key:

{

"bootloader_config": {

"bootloader_id": 1,

"bootloader_version": 1,

"company_id": 89,

"application_id": 1,

"application_version": 1,

"public_key": "ed09a58df6db5cd15b8637304f31d31f4042492ed7c7e4839fbe903f260a2ba1a855e92b72885825481ad56282bcf549ad7455ec46f000f0f62d97eeec883ba6"

}

}

The hex we used is C:\Nordic\nRF5_SDK_15.0.0_a53641a\mesh_sdk\bin\blinky\blinky_nrf52832_xxAA_s132_5.0.0.hexblinky_nrf52832_xxAA_s132_5.0.0.hex

We got ValueError, please see attached screen shot. 

Please advise.  Thanks

[iotlight]

We started command prompt on an administrator.  I have make sure all the steps before and after step 8 using s132 softdevice version 6.0.  We tried to flash the program via both SES and nrfjprog (like shown in step 8).  We also used difference Bud rate 115200, 57600, 38400, 19200, 14400 and 9600.

Attached are the cmd script file

Fullscreen cmd scrip.txt Download

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\ALaw>cd C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfutil keys --gen-key private_key.txt
Generated key at: private_key.txt

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfutil keys --show-vk hex private_key.tx
t
Verification key Qx: d78ea2728b31c63b185402f4209803b478d0828b02a0f44da9f5d782b04
7fe45
Verification key Qy: b60bf4db2e572b4b6053c0c7e9371b309c93ee53c300906afc6c7f2d99c
e11cd

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfutil dfu genpkg --application bin/blin
ky/blinky_nrf52832_xxAA_s132_6.0.0.hex --company-id 0x00000059 --application-id
1 --application-version 2 --key-file private_key.txt --sd-req 0x009D --mesh dfu_
test.zip
Key file was given, setting DFU version to 0.8
Zip created at dfu_test.zip

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>cd tools/dfu

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src\tools\dfu>python device_page_generator.py
 -d nrf52832_xxAA -sd "s132_6.0.0"
Wrote device page for nrf52832_xxAA with the s132_6.0.0 SoftDevice to bin/device
_page_nrf52832_xxAA_s132_6.0.0.hex.

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src\tools\dfu>cd ..

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src\tools>cd ..

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfjprog --eraseall
Erasing user available code and UICR flash areas.
Applying system reset.

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfjprog --program bin/softdevice/s132_nr
f52_6.0.0_softdevice.hex --chiperase
Parsing hex file.
Erasing user available code and UICR flash areas.
Applying system reset.
Checking that the area to write is not protected.
Programming device.

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfjprog --program bin/bootloader/armcc/m
esh_bootloader_serial_armcc__nrf52832_xxAA.hex
Parsing hex file.
ERROR: The file specified could not be found.

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfjprog --program bin/bootloader/armcc/m
esh_bootloader_serial_armcc_nrf52832_xxAA.hex
Parsing hex file.
Reading flash area to program to guarantee it is erased.
Checking that the area to write is not protected.
Programming device.

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfjprog --program examples\dfu\build\dfu
_nrf52832_xxAA_s132_6.0.0_Debug\dfu_nrf52832_xxAA_s132_6.0.0.hex
Parsing hex file.
Reading flash area to program to guarantee it is erased.
Checking that the area to write is not protected.
Programming device.

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfjprog --program tools/dfu/bin/device_p
age_nrf52832_xxAA_s132_6.0.0.hex
Parsing hex file.
Reading flash area to program to guarantee it is erased.
Checking that the area to write is not protected.
Programming device.

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfjprog --reset
Applying system reset.
Run.

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfutil dfu serial -pkg dfu_test.zip -p C
OM46 -b 115200 -fc --mesh
Upgrading target on COM46 with DFU package C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_sr
c\dfu_test.zip. Flow control is enabled.
  [------------------------------------]    0%

Failed to upgrade target. Error is: Failed to establish connection

Possible causes:
- bootloader, SoftDevice or application on target does not match the requirement
s in the DFU package.
- baud rate or flow control is not the same as in the target bootloader.
- target is not in DFU mode. If using the SDK examples, press Button 4 and RESET
 and release both to enter DFU mode.

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfutil --verbose dfu serial -pkg dfu_tes
t.zip -p COM46 -b 115200 -fc --mesh
Upgrading target on COM46 with DFU package C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_sr
c\dfu_test.zip. Flow control is enabled.
  [------------------------------------]    0%Flushing com-port...
Opened com-port
Starting DFU upgrade of type 4, SoftDevice size: 0, bootloader size: 0, applicat
ion size: 1912
Sending DFU start packet, afterwards we wait for the flash on target to be initi
alized before continuing.
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd


Failed to upgrade target. Error is: Failed to establish connection

Possible causes:
- bootloader, SoftDevice or application on target does not match the requirement
s in the DFU package.
- baud rate or flow control is not the same as in the target bootloader.
- target is not in DFU mode. If using the SDK examples, press Button 4 and RESET
 and release both to enter DFU mode.
Closing serial port...

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfutil dfu serial -pkg dfu_test.zip -p C
OM46 -b 57600 -fc --mesh
Upgrading target on COM46 with DFU package C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_sr
c\dfu_test.zip. Flow control is enabled.
  [------------------------------------]    0%

Failed to upgrade target. Error is: Failed to establish connection

Possible causes:
- bootloader, SoftDevice or application on target does not match the requirement
s in the DFU package.
- baud rate or flow control is not the same as in the target bootloader.
- target is not in DFU mode. If using the SDK examples, press Button 4 and RESET
 and release both to enter DFU mode.

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfutil --verbose dfu serial -pkg dfu_tes
t.zip -p COM46 -b 38400 -fc --mesh
Upgrading target on COM46 with DFU package C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_sr
c\dfu_test.zip. Flow control is enabled.
  [------------------------------------]    0%Flushing com-port...
Opened com-port
Starting DFU upgrade of type 4, SoftDevice size: 0, bootloader size: 0, applicat
ion size: 1912
Sending DFU start packet, afterwards we wait for the flash on target to be initi
alized before continuing.
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd


Failed to upgrade target. Error is: Failed to establish connection

Possible causes:
- bootloader, SoftDevice or application on target does not match the requirement
s in the DFU package.
- baud rate or flow control is not the same as in the target bootloader.
- target is not in DFU mode. If using the SDK examples, press Button 4 and RESET
 and release both to enter DFU mode.
Closing serial port...

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfutil --verbose dfu serial -pkg dfu_tes
t.zip -p COM46 -b 19200 -fc --mesh
Upgrading target on COM46 with DFU package C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_sr
c\dfu_test.zip. Flow control is enabled.
  [------------------------------------]    0%Flushing com-port...
Opened com-port
Starting DFU upgrade of type 4, SoftDevice size: 0, bootloader size: 0, applicat
ion size: 1912
Sending DFU start packet, afterwards we wait for the flash on target to be initi
alized before continuing.
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd


Failed to upgrade target. Error is: Failed to establish connection

Possible causes:
- bootloader, SoftDevice or application on target does not match the requirement
s in the DFU package.
- baud rate or flow control is not the same as in the target bootloader.
- target is not in DFU mode. If using the SDK examples, press Button 4 and RESET
 and release both to enter DFU mode.
Closing serial port...
target -> PC: e8

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfutil --verbose dfu serial -pkg dfu_tes
t.zip -p COM46 -b 14400 -fc --mesh
Upgrading target on COM46 with DFU package C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_sr
c\dfu_test.zip. Flow control is enabled.
  [------------------------------------]    0%Flushing com-port...
Opened com-port
Starting DFU upgrade of type 4, SoftDevice size: 0, bootloader size: 0, applicat
ion size: 1912
Sending DFU start packet, afterwards we wait for the flash on target to be initi
alized before continuing.
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd


Failed to upgrade target. Error is: Failed to establish connection

Possible causes:
- bootloader, SoftDevice or application on target does not match the requirement
s in the DFU package.
- baud rate or flow control is not the same as in the target bootloader.
- target is not in DFU mode. If using the SDK examples, press Button 4 and RESET
 and release both to enter DFU mode.
Closing serial port...

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>nrfutil --verbose dfu serial -pkg dfu_tes
t.zip -p COM46 -b 9600 -fc --mesh
Upgrading target on COM46 with DFU package C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_sr
c\dfu_test.zip. Flow control is enabled.
  [------------------------------------]    0%Flushing com-port...
Opened com-port
Starting DFU upgrade of type 4, SoftDevice size: 0, bootloader size: 0, applicat
ion size: 1912
Sending DFU start packet, afterwards we wait for the flash on target to be initi
alized before continuing.
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd
PC -> target: 0502aabbccdd


Failed to upgrade target. Error is: Failed to establish connection

Possible causes:
- bootloader, SoftDevice or application on target does not match the requirement
s in the DFU package.
- baud rate or flow control is not the same as in the target bootloader.
- target is not in DFU mode. If using the SDK examples, press Button 4 and RESET
 and release both to enter DFU mode.
Closing serial port...

C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>




C:\Nordic\nrf5_SDK_for_Mesh_v2.0.1_src>

Step 1: private_key.txt 

Fullscreen private_key.txt Download

-----BEGIN EC PRIVATE KEY-----
MHcCAQEEIHPeFxystPEoiZd7uOpCqfRxyO69QavgEeIowj7u+fp2oAoGCCqGSM49
AwEHoUQDQgAE146icosxxjsYVAL0IJgDtHjQgosCoPRNqfXXgrBH/kW2C/TbLlcr
S2BTwMfpNxswnJPuU8MAkGr8bH8tmc4RzQ==
-----END EC PRIVATE KEY-----

Step 2: bootloader_config_default.json 

Fullscreen bootloader_config_default.txt Download

{
    "bootloader_config": {
        "bootloader_id": 1,
        "bootloader_version": 1,
        "company_id": 89,
        "application_id": 1,
        "application_version": 1,
		"public_key": 
	"d78ea2728b31c63b185402f4209803b478d0828b02a0f44da9f5d782b047fe45b60bf4db2e572b4b6053c0c7e9371b309c93ee53c300906afc6c7f2d99ce11cd"	
	
    }
}

Step 3: dfu_test.zip dfu_test.zip

Step 4: Modified  dfu_nrf52832_xxAA_s132_6.0.0.py from 5.0.0 to 6.0.0 

Fullscreen device_page_generator.txt 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('<HH', self.word_count, self.bl_info_type)
                          + self.data))


class DevicePage(object):
    def __init__(self, platform, softdevice, bootloader_config):
        self.entries = []
        self.generate_entries(platform, softdevice, bootloader_config)
        self.platform = platform
        self.softdevice = softdevice

    def generate_entries(self, platform, softdevice, bootloader_config):
        public_key = bytearray.fromhex(bootloader_config["public_key"]) \
                     if "public_key" in bootloader_config else None
        if public_key:
            self.entries.append(
                DevicePageEntry(BLInfoType.ECDSA_PUBLIC_KEY, public_key))

        app_limits = get_application_limits(platform, softdevice)
        app_segment = bytearray(struct.pack("<II",
                                            app_limits["flash_start"],
                                            app_limits["flash_size"]))
        sd_segment = bytearray(struct.pack("<II",
                                           softdevice["flash_start"],
                                           softdevice["flash_size"]))
        bl_segment = bytearray(struct.pack("<II",
                                           platform["bootloader"]["flash_start"],
                                           platform["bootloader"]["flash_size"]))

        self.entries.append(
            DevicePageEntry(BLInfoType.SEGMENT_APP, app_segment))
        self.entries.append(
            DevicePageEntry(BLInfoType.SEGMENT_SD, sd_segment))
        self.entries.append(
            DevicePageEntry(BLInfoType.SEGMENT_BL, bl_segment))

        version_data = bytearray(struct.pack("<HBBIHI",
                                             int(softdevice["version"], 16),
                                             bootloader_config["bootloader_id"],
                                             bootloader_config["bootloader_version"],
                                             bootloader_config["company_id"],
                                             bootloader_config["application_id"],
                                             bootloader_config["application_version"]))

        #print(version_data)
        self.entries.append(DevicePageEntry(BLInfoType.VERSION,
                                            version_data))

        self.entries.append(DevicePageEntry(BLInfoType.FLAGS,
                                            bytearray(struct.pack('I', 0xFFFFFFFF))))

    def write_hex(self, hexfile):
        # Info page metadata
        raw_data = bytearray(struct.pack("<BBBB", 4, 1, 8, 8))
        raw_data += bytearray().join(map(DevicePageEntry.serialize, self.entries))
        raw_data += bytearray(struct.pack("<HH", 0xFFFF, BLInfoType.LAST))
        hex_output = intelhex.IntelHex()
        hex_output.frombytes(raw_data,
                             self.platform["flash_size"] - self.platform["page_size"])
        hex_output.tofile(hexfile, "hex")


def write_specific_page(platforms, softdevices, args):
    platform = next((p for p in platforms if args.device == p["name"]), None)
    if not platform:
        print("Unknown device: \"%s\" in list %r" % (args.device, [p["name"] for p in platforms]))
        sys.exit(1)

    softdevice = next((s for s in softdevices if args.softdevice == s["name"]), None)
    if not softdevice:
        print("Unknown SoftDevice: \"%s\"" % (args.softdevice))
        sys.exit(1)

    if args.softdevice not in platform["softdevices"]:
        print("Unknown SoftDevice \"%s\" for platform \"%s\"" %
              (args.softdevice, args.device))
        sys.exit(1)

    # Filter out the others...
    platforms = [p for p in platforms
                 if args.device.lower() in p["name"].lower()]

    make_bootloader_for_platforms(platforms)
    set_softdevices_for_platforms(platforms, softdevices)

    # Dict is updated by reference
    # platform = platforms[args.device]
    # softdevice = softdevices[args.softdevice]

    with open(args.bootloader_config, "r") as f:
        bootloader_config = json.load(f)["bootloader_config"]
    device_page = DevicePage(platform, softdevice, bootloader_config)
    if not args.output_file:
        args.output_file = "_".join(["device_page",
                                     self.platform["name"],
                                     self.softdevice["name"]]) + ".hex"

    device_page.write_hex(args.output_file)


def write_all(platforms, softdevices, args):
    make_bootloader_for_platforms(platforms)
    set_softdevices_for_platforms(platforms, softdevices)

    with open(args.bootloader_config, "r") as f:
        bootloader_config = json.load(f)["bootloader_config"]

    for platform in platforms:
        for softdevice in platform["softdevices"]:
            device_page = DevicePage(platform, softdevice, bootloader_config)
            device_page.write_hex(args.output_file)


def main():
    softdevices = load_softdevies("../configuration/softdevices.json")
    platforms = load_platforms("../configuration/platforms.json")
    sd_str = ''
    for sd in softdevices:
        sd_str += ''.join(sd["name"]) + "\n"
    plt_str = ''
    for plt in platforms:
        plt_str += ''.join(plt["name"]) + '\n'

    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),
                        default=DEVICE)
    parser.add_argument("-sd", "--softdevice", help="Select SoftDevice: "  + ''.join(sd_str),
                        default=SOFTDEVICE)
    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("--all", default=False, action="store_true",
                        help=("Writes all known device page combinations to "
                              + "\'bin/\'"))
    args = parser.parse_args()

    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()

to generate 

 device_page_nrf52832_xxAA_s132_6.0.0.hex device_page_nrf52832_xxAA_s132_6.0.0.hex

Step 6: s132_nrf52_6.0.0_softdevice.hex s132_nrf52_6.0.0_softdevice.hex

Step 7: s132_nrf52_6.0.0_softdevice.hex mesh_bootloader_serial_armcc_nrf52832_xxAA.hex

Step 8: Program device using nrfjprog  to download dfu_nrf52832_xxAA_s132_6.0.0.hex dfu_nrf52832_xxAA_s132_6.0.0.hexdfu_nrf52832_xxAA_s132_6.0.0.map

 

Step 9: Program device_page_nrf52832_xxAA_s132_6.0.0.hex device_page_nrf52832_xxAA_s132_6.0.0.hex 

Step 10: We tried difference Baud Rates, press Button 4 and RESET and release both to enter DFU mode and use s132 and version 6.0.0, still got

"Error is: Failed to establish connection"

 

Please advise.  Thanks.

[Bjørn Kvaale]

I got a few tips from a Mesh developer here at Nordic:

"The original issue seems to be an error in the json file. Looks like there is an extra "}" at the end, maybe.

Next, is the customer sure that the com port used is the correct com port?

The SEGGER DFU build had a known issue with the flash_placement.xml file. I would advise the customer to use some of the pre-compiled binaries to test the DFU first."

But I believe you have fixed the first issue, correct? I also believe you are using the correct com port & I believe you have used the pre-compiled binaries & not your own built hex files.

I am not sure these tips will help all too much, but it's worth giving it a shot!

[Bjørn Kvaale]

Have you tried using the bootloader_verify.py file from mesh sdk v2.0.1? Do you still receive the same error then? Did you make sure to run an nrfjprog --reset running the python script? This may help.

Regarding ninja, I believe you can run the command: pip install Ninja or pip install ninja

As far as I am aware though, for your use case, you will not need to use cmake unless you want a different segger project for a different device.

[iotlight]

I successfully built file using cmake.  Thank you very much.

Yes, I used the bootloader_verify.py file from mesh sdk v2.0.1, please see attached directory folder of bootloader_verify.py 

Fullscreen bootloader_verify.py Download

# Copyright (c) 2010 - 2018, Nordic Semiconductor ASA
# All rights reserved.
#
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import binascii
import subprocess
import shlex
import sys
import serial
import time

def get_device_family(serial_number):
    family = {
        '480': 'NRF51',
        '680': 'NRF51',
        '681': 'NRF51',
        '682': 'NRF52',
    }
    if not serial_number[:3] in family:
        return 'NRF51' # fallback to 51.
    else:
        return family[serial_number[:3]]

def read_serial_event(s):
    evt = ""
    while True:
        length = s.read()
        if ord(length) > 0:
            evt = s.read(ord(length))
            return evt



def print_usage():
    print("")
    print("Usage:\tbootloader_verify.py <Segger serial-number> <COM-port>")

def nrfjprog(args):
    process = subprocess.Popen(shlex.split("nrfjprog " + args), stdout=subprocess.PIPE)
    out, err = process.communicate()
    if process != None and process.returncode == 2:
        print("Couldn't find nrfjprog, exiting.")
        exit(2)
    if process == None or process.returncode != 0:
        print("Error calling nrfjprog with arguments " + args + ".")
        print(out)
        exit(2)
    return out

def read_uicr(serial_number):
    family = get_device_family(serial_number)
    sys.stdout.write("Device family:\t\t\t" + family + "\n")
    sys.stdout.write("Reading UICR..\t\t\t")
    read = nrfjprog("-s " + serial_number + " --memrd 0x10001014 --n 4 --w 32 --family " + family).strip()
    bootloader_addr = str(read).split()[1]
    if bootloader_addr == "FFFFFFFF":
        print("ERROR: UICR NOT SET.")
        print("Checkpoints:")
        print("\tHave you flashed the bootloader with nrfjprog?")
        print("\tDid you flash the Softdevice BEFORE the bootloader?")
        exit(1)

    read = nrfjprog("-s " + serial_number + " --memrd 0x" + bootloader_addr + " --n 4 --w 32 --family " + family).strip()
    bootloader_vector_pointer = str(read).split()[1]
    if bootloader_vector_pointer < "20000000":
        print("ERROR: Bootloader vector pointer invalid.")
        print("Checkpoints:")
        print("\tHave you flashed the bootloader with nrfjprog?")
        print("\tDid you flash the Softdevice BEFORE the bootloader?")
        print("\tDid you erase the device before programming all the hex-files?")
        exit(1)
    if bootloader_vector_pointer == "FFFFFFFF":
        print("ERROR: Bootloader not present.")
        print("Checkpoints:")
        print("\tHave you flashed the bootloader with nrfjprog?")
        print("\tDid you flash the Softdevice BEFORE the bootloader?")
        print("\tDid you erase the device before programming all the hex-files?")
        exit(1)
    print("OK.")
    return bootloader_addr

def read_device_page(serial_number):
    family = get_device_family(serial_number)
    # need to know the flash size to get the device page. Can read this from the FICR:
    ficr = str(nrfjprog("-s " + serial_number + " --memrd 0x10000010 --n 8 --w 32 --family " + family).strip()).split()[1:]
    code_page_size = int(ficr[0], 16)
    code_page_count = int(ficr[1], 16)
    device_page_location = code_page_size * (code_page_count - 1)

    sys.stdout.write("Reading Device page..\t\t")
    device_page = nrfjprog("-s " + serial_number + " --memrd " + hex(device_page_location) + " --n 4 --w 32 --family " + family).strip()
    device_page_header = str(device_page).split()[1]
    if device_page_header == "FFFFFFFF":
        print("ERROR: DEVICE PAGE NOT PRESENT.")
        print("Checkpoints:")
        print("\tHave you flashed the device page?")
        exit(1)
    if device_page_header != "08080104":
        print("ERROR: DEVICE PAGE INVALID.")
        print("Checkpoints:")
        print("\tDid you erase the device before programming all the hex-files?")
        exit(1)
    print("OK.")
    return device_page_header

def reset_device(serial_number, port):
    sys.stdout.write("Resetting device..\t\t")
    try:
        s = serial.Serial(port, 115200, rtscts = True)
    except:
        print("ERROR: Could not open COM port " + port)
        exit(1)
    family = get_device_family(serial_number)
    nrfjprog("-s " + serial_number + " --reset --family " + family)
    time.sleep(0.2)
    response = read_serial_event(s)

    if b"\x81\x02\x00" == response[:3]:
        print("OK (In application)")
    elif not b"\x81\x01\x00" in response:
        print("ERROR: Invalid start sequence from bootloader: " + binascii.hexlify(response))
        print("Checkpoints:")
        print("\tHave you flashed the bootloader with nrfjprog?")
        print("\tDoes your bootloader have serial communication enabled?")
        s.close()
        exit(1)
    else:
        print("OK.")
    time.sleep(0.1)
    s.close()

def echo(port):
    sys.stdout.write("Checking serial connection..\t")
    try:
        s = serial.Serial(port, 115200, rtscts = True)
    except:
        print("ERROR: Could not open COM port " + port)
        exit(1)
    s.write(b"\x03\x02\xaa\xbb")
    time.sleep(0.1)
    if not s.read(4).startswith(b"\x03\x82\xaa\xbb"):
        print("ERROR: Invalid response!")
        print("Checkpoints:")
        s.close()
        exit(1)
    s.close()
    print("OK.")

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Please provide the serial number of your device")
        print_usage()
        exit(1)
    if len(sys.argv) < 3:
        print("Please provide the COM port of your device")
        print_usage()
        exit(1)
    try:
        int(sys.argv[1])
    except:
        print("Invalid serial number " + sys.argv[1])
        print_usage()
        exit(1)

    bootloader_addr = read_uicr(sys.argv[1])
    read_device_page(sys.argv[1])
    reset_device(sys.argv[1], sys.argv[2])
    echo(sys.argv[2])

    print("\nBootloader verification OK.")

When I ran python bootloader_verify.py 682630616 COM3, it was get stuck in

Resetting device..

and didn't go anywhere.  The Command Prompt won't accept any command, please see attached screen shoot.  

Please advise.  Thanks.

[Bjørn Kvaale]

I have two tips: add some prints (i.e. sys.stdout.write("...")) in the bootloader_verify.py script to see where the error is occurring and/or try the whole dfu getting started process again. Most likely there is some small mistake you are making somewhere that is leading to this issue (e.g. running mesh_bootloader_gccarmemb instead of mesh_bootloader_serial_gccarmemb). I have tested this example again with three nrf52832 dev kits & the blinky dfu worked.

I have had one issue with the COM port, so it might also be worthwhile to try a different usb port or try running the python bootloader_verify.py script on another one of your devices.

[shubhangir]

Hello,

Thank you for the help here.

I tried all the steps mentioned in the post, including the change to flash_placement.xml before flashing to the target board, I still see the issue (Failed to establish connection, after sending the DFU start packet).

I’m following the quick start guide for this, using following setup: one target board – nrf52840 dev kit, softdevice – s140_6.0.0 (I verified in the nRF Go studio that this corresponds to ID 0x00A9), bootloader: mesh_bootloader_serial_gccarmemb_nrf52840_xxAA.hex. I built my dfu application using ninja/cmake, having set the device and softdevice to nrf52840/s140 respectively.

Do I need to flash the host board as well, with the same first application? I assumed that since it is just a carrier, as long as it is recognized as a JLINK device, I should be able to run nrfutil on the serial port connected to the host board.

Please advise,

Thanks and regards,

Shubhangi

[iotlight]

It worked in my other computer now.

I tried both

C:\Nordic_SES\nrf5_SDK_for_Mesh_v2.0.1_src\bin\bootloader\gccarmemb\ mesh_bootloader_serial_gccarmemb_nrf52832_xxAA.hex

And

C:\Nordic_SES\nrf5_SDK_for_Mesh_v2.0.1_src\bin\bootloader\armcc\ mesh_bootloader_serial_armcc_nrf52832_xxAA.hex

What is the difference between gccarmemb and armcc?

Now it works using serial port, but my goal is updating firmware on mesh devices without using any cable connection as stated in the DFU quick start guide.

I tried to use -s <serial number> on another module, but nothing happened.  Please specify which steps I should add -s <serial number>.  

Please advise.  Thanks.

[Bjørn Kvaale]

I used gcc armemb. gcc armemb uses the GCC ARM compiler & armcc uses the compiler provided by keil. You need to add the nrfjprog -s command to all of the nrfjprog commands in this quick start guide.

But what I do instead, which I find easier, is to just write the nrfjprog commands without the -s at the back. That way, you should get a popup with a list of all the segger IDs if you have attached multiple DKs. If you only have one connected, the nrfjprog command will run without any errors. Then, you can choose the segger ID that you want to use.

[Arij]

I'm facing a problem in step 4 when i need to generate a hex version of device page, i did this : 

dfu$ py device_page_generator.py -d nrf52832_xxAA -sd "s132_6.0.0"

and this is the result

Wrote device page for nrf53832_xxAA with the s132_6.0.0 SoftDevice to bin/device_page_nrf52832_xxAA_s132_5.0.0.hex instead of s132 version 6 

here is the bin directory 

I don't know why it doesn't generate device page with s132 v6.0.0, help please 

[Bjørn Kvaale]

Hi Arij could you please open a new case regarding this.

[Arij]

I opened a new case about this issue