Now the code in the application part has added the buttonless_dfu function, which has also been successfully implemented. But I ’m not familiar with serial_dfu, I don’t know how to continue to add serial_dfu function. And how to achieve coexistence of ble_dfu and serial_dfu in bootload code？
Hi June,
You can have a look at this case: https://devzone.nordicsemi.com/f/nordic-q-a/35431/dfu-over-ble-and-usb
I have an example for SDK v15.2 there. To find how to enter DFU bootloader mode from application, please study the ble_app_buttonless_dfu example. Check function enter_bootloader() and then ble_dfu_buttonless_bootloader_start_prepare(). The GPREGRET register is written before the application reset and enter bootloader.
Hi Hung Bui，
I have added the serial_dfu code with reference to this routine, and now I have a few questions:
1、Does uart need flow control during serial dfu? I am currently turning off serial port flow control because my hardware does not have two pins for flow control
2、In normal application operation, in addition to the buttonless method, I can also enter the upgrade mode by pressing the button. After pressing the button, I performed the following operations:
err_code = sd_power_gpregret_clr(0, 0xffffffff); VERIFY_SUCCESS(err_code); err_code = sd_power_gpregret_set(0, BOOTLOADER_DFU_START); VERIFY_SUCCESS(err_code); // Signal that DFU mode is to be enter to the power management module nrf_pwr_mgmt_shutdown(NRF_PWR_MGMT_SHUTDOWN_GOTO_DFU);
Is this correct?
3、After entering the upgrade mode, what nrfutil command is used to upgrade the zip package into the chip?
Is it convenient to provide the code based on SDK 15.3? I really don't know where is the bug
Hi Hung,
I tried it in the ble_uart_debug ses project transplanted based on SDK 15.3, there is already log output, the following is the log generated during the DFU process
<debug> nrf_dfu_serial: Received ping 1 <info> nrf_dfu_serial_uart: Allocated buffer 2000B08C <info> nrf_dfu_req_handler: Invalid opcode received: 0x9. <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x2 <warning> nrf_dfu_serial: DFU request completed with result: 0x2 <debug> nrf_dfu_serial: Sending Response: [0x9, 0x2] <debug> nrf_dfu_serial: Set receipt notif target: 0 <info> nrf_dfu_serial_uart: Allocated buffer 2000B08C <debug> nrf_dfu_req_handler: Handle NRF_DFU_OP_RECEIPT_NOTIF_SET <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x1 <debug> nrf_dfu_serial: Sending Response: [0x2, 0x1] <debug> nrf_dfu_serial: Received serial mtu <info> nrf_dfu_serial_uart: Allocated buffer 2000B08C <info> nrf_dfu_req_handler: Invalid opcode received: 0x7. <debug> nrf_dfu_req_handler: Request handling complete. Result: 0x2 <warning> nrf_dfu_serial: DFU request completed with result: 0x2 <debug> nrf_dfu_serial: Sending Response: [0x7, 0x2]
Among them, I noticed a warning
<warning> nrf_dfu_serial: DFU request completed with result: 0x2
Will this be the key factor for my upgrade failure?
Hi June,
Could you verify that you can test my example in SDK v15.2 and it works without any issue ?
This way we can rule out any issue with the hardware or nrfutil.
Your example program is normal on the 52832DK board, but on the 52840DK board, once the HWFC is turned off, although I have reduced the baud rate to 9600 and executed the MSDDisable command, the upgrade will still fail
Traceback (most recent call last):
File "D:\Application\Python38\Scripts\nrfutil-script.py", line 11, in <module>
load_entry_point('nrfutil==6.0.1', 'console_scripts', 'nrfutil')()
File "D:\Application\Python38\lib\site-packages\click-7.1.1-py3.8.egg\click\core.py", line 829, in __call__
return self.main(*args, **kwargs)
File "D:\Application\Python38\lib\site-packages\click-7.1.1-py3.8.egg\click\core.py", line 782, in main
rv = self.invoke(ctx)
File "D:\Application\Python38\lib\site-packages\click-7.1.1-py3.8.egg\click\core.py", line 1259, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "D:\Application\Python38\lib\site-packages\click-7.1.1-py3.8.egg\click\core.py", line 1259, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "D:\Application\Python38\lib\site-packages\click-7.1.1-py3.8.egg\click\core.py", line 1066, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "D:\Application\Python38\lib\site-packages\click-7.1.1-py3.8.egg\click\core.py", line 610, in invoke
return callback(*args, **kwargs)
File "D:\Application\Python38\lib\site-packages\nrfutil-6.0.1-py3.8.egg\nordicsemi\__main__.py", line 1055, in serial
do_serial(package, port, connect_delay, flow_control, packet_receipt_notification, baud_rate, serial_number, True,
File "D:\Application\Python38\lib\site-packages\nrfutil-6.0.1-py3.8.egg\nordicsemi\__main__.py", line 970, in do_serial
dfu.dfu_send_images()
File "D:\Application\Python38\lib\site-packages\nrfutil-6.0.1-py3.8.egg\nordicsemi\dfu\dfu.py", line 127, in dfu_send_images
self._dfu_send_image(self.manifest.application)
File "D:\Application\Python38\lib\site-packages\nrfutil-6.0.1-py3.8.egg\nordicsemi\dfu\dfu.py", line 100, in _dfu_send_image
self.dfu_transport.send_firmware(data)
File "D:\Application\Python38\lib\site-packages\nrfutil-6.0.1-py3.8.egg\nordicsemi\dfu\dfu_transport_serial.py", line 301, in send_firmware
response['crc'] = self.__stream_data(data=data, crc=response['crc'], offset=i)
File "D:\Application\Python38\lib\site-packages\nrfutil-6.0.1-py3.8.egg\nordicsemi\dfu\dfu_transport_serial.py", line 474, in __stream_data
response = self.__calculate_checksum()
File "D:\Application\Python38\lib\site-packages\nrfutil-6.0.1-py3.8.egg\nordicsemi\dfu\dfu_transport_serial.py", line 412, in __calculate_checksum
raise NordicSemiException('Did not receive checksum response from DFU target. '
pc_ble_driver_py.exceptions.NordicSemiException: Did not receive checksum response from DFU target. If MSD is enabled on the target device, try to disable it ref. https://wiki.segger.com/index.php?title=J-Link-OB_SAM3UBy the way, nrfutil version is 6.0.1.
By the way, nrfutil version is 6.0.1.