SDK 15.3 UART DFU Example Not Working

[Navin]

Hello,

I am not able to get the UART DFU secure bootloader example work for PCA10040 nRF52DK.

I have flashed the device with Bootloader and SotDevice 6.1.1 version.

When I run the nrfutil on Ubuntu 16.04 I get this error "pc_ble_driver_py.exceptions.NordicSemiException: Unexpected Executed OP_CODE.
Expected: 0x03 Received: 0xAB"

Command - nrfutil dfu serial -pkg app_s132_for_uart_secure.zip -p /dev/ttyACM0 -fc 0 -b 115200

What is the reason for this error? 

I see that LED1 and LED3 are on initially. Then LED1 and LED2 turn on when I start the command. But the program exits with the error described above.

[Navin]

[Navin]

I did try to run the example with SDK 16 and it resulted in the same error.

[Navin]

Hi,

Even 15.2 is resulting in the same problem. Is there something that I am missing in the process?

1. Generate Private and Public Keys

2. Generate HEX for secure UART Bootloader using Segger Studio with public key from Step 1.

3. Generte HEX for application, in my case ble_app_uart_pca10040_s132.hex.

4. Generate settings for bootloader -  nrfutil settings generate --family NRF52 --application ble_app_uart_pca10040_s132.hex --application-version 1 --bootloader-version 2 --bl-settings-version 1 settings.hex

5. Merge the SD132 + secure BL + settings HEX files.

6. Flash the nRF52832 device with the HEX generated in Step 5.

7.  Generate zip file using the command - nrfutil pkg generate --application ble_app_uart_pca10040_s132.hex --application-version 1 --hw-version 52 --sd-req 0xB7 --key-file private.key app_uart.zip

8. Finally run the command -  nrfutil -vvvv dfu serial -pkg app_uart.zip -p /dev/ttyACM0

9. The output is shown in the log file.

Fullscreen 1031.log.txt Download

2020-02-27 12:02:01,664 Using board at serial port: /dev/ttyACM0
2020-02-27 12:02:01,666 Sending Application image.
2020-02-27 12:02:05,172 SLIP: --> [9, 1]
2020-02-27 12:02:05,173 SLIP: <-- [96, 9, 1, 1]
2020-02-27 12:02:05,173 Serial: Set Packet Receipt Notification 0
2020-02-27 12:02:05,173 SLIP: --> [2, 0, 0]
2020-02-27 12:02:05,175 SLIP: <-- [96, 2, 1]
2020-02-27 12:02:05,175 SLIP: --> [7]
2020-02-27 12:02:05,177 SLIP: <-- [96, 7, 1, 131, 0]
2020-02-27 12:02:05,177 Sending init packet...
2020-02-27 12:02:05,177 Serial: Selecting Object: type:1
2020-02-27 12:02:05,177 SLIP: --> [6, 1]
2020-02-27 12:02:05,180 SLIP: <-- [96, 6, 1, 0, 1, 0, 0, 13, 0, 0, 0, 229, 217, 61, 62]
2020-02-27 12:02:05,180 Serial: Object selected:  max_size:256 offset:13 crc:1044240869
2020-02-27 12:02:05,180 SLIP: --> [1, 1, 141, 0, 0, 0]
2020-02-27 12:02:05,182 SLIP: <-- [96, 1, 1]
2020-02-27 12:02:05,182 Serial: Streaming Data: len:141 offset:0 crc:0x00000000
2020-02-27 12:02:05,182 SLIP: --> [8, 18, 138, 1, 10, 68, 8, 1, 18, 64, 8, 1, 16, 52, 26, 2, 183, 1, 32, 0, 40, 0, 48, 0, 56, 220, 227, 1, 66, 36, 8, 3, 18, 32, 126, 84, 193, 118, 182, 12, 221, 145, 49, 195, 254, 90, 230, 121, 193, 235, 58, 88, 57, 146, 196, 122, 165, 169, 202, 70, 129, 208, 61, 100, 13]
2020-02-27 12:02:05,182 SLIP: --> [8, 84, 72, 0, 82, 4, 8, 1, 18, 0, 16, 0, 26, 64, 134, 246, 184, 220, 67, 162, 219, 171, 10, 128, 82, 185, 154, 0, 184, 152, 202, 30, 241, 87, 202, 249, 103, 8, 32, 49, 198, 158, 119, 89, 136, 71, 119, 49, 48, 218, 24, 53, 79, 245, 188, 231, 188, 214, 208, 245, 116, 242, 203, 31, 63]
2020-02-27 12:02:05,182 SLIP: --> [8, 152, 38, 82, 9, 78, 187, 176, 216, 154, 104, 181, 86, 250]
2020-02-27 12:02:05,183 SLIP: --> [3]
2020-02-27 12:02:05,184 SLIP: <-- [96, 13, 2]
Traceback (most recent call last):
  File "/home/reddyn/.local/bin/nrfutil", line 8, in <module>
    sys.exit(cli())
  File "/home/reddyn/.local/lib/python2.7/site-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/home/reddyn/.local/lib/python2.7/site-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/home/reddyn/.local/lib/python2.7/site-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/reddyn/.local/lib/python2.7/site-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/reddyn/.local/lib/python2.7/site-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/reddyn/.local/lib/python2.7/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/home/reddyn/.local/lib/python2.7/site-packages/nordicsemi/__main__.py", line 1042, in serial
    timeout)
  File "/home/reddyn/.local/lib/python2.7/site-packages/nordicsemi/__main__.py", line 958, in do_serial
    dfu.dfu_send_images()
  File "/home/reddyn/.local/lib/python2.7/site-packages/nordicsemi/dfu/dfu.py", line 129, in dfu_send_images
    self._dfu_send_image(self.manifest.application)
  File "/home/reddyn/.local/lib/python2.7/site-packages/nordicsemi/dfu/dfu.py", line 97, in _dfu_send_image
    self.dfu_transport.send_init_packet(data)
  File "/home/reddyn/.local/lib/python2.7/site-packages/nordicsemi/dfu/dfu_transport_serial.py", line 255, in send_init_packet
    self.__stream_data(data=init_packet)
  File "/home/reddyn/.local/lib/python2.7/site-packages/nordicsemi/dfu/dfu_transport_serial.py", line 474, in __stream_data
    response = self.__calculate_checksum()
  File "/home/reddyn/.local/lib/python2.7/site-packages/nordicsemi/dfu/dfu_transport_serial.py", line 409, in __calculate_checksum
    response = self.__get_response(DfuTransportSerial.OP_CODE['CalcChecSum'])
  File "/home/reddyn/.local/lib/python2.7/site-packages/nordicsemi/dfu/dfu_transport_serial.py", line 492, in __get_response
    + 'Expected: 0x{:02X} Received: 0x{:02X}'.format(operation, resp[1]))
pc_ble_driver_py.exceptions.NordicSemiException: Unexpected Executed OP_CODE.
Expected: 0x03 Received: 0x0D

[Einar Thorsrud]

Hi,

I notice that you don't use flow control. What happens if you enable flow control (assuming you are able to hook up to GPIOs for it)? If not, significantly reducing the baud rate could be worth a try.

[Navin]

Hello Einar,

I have tried with and without HWFC, it does not help.

Also, I have tried baud rate as low as 9600. It didn't work, in-fact the same sequence of messages were displayed.