52840+freertos+dfu+ advertising+scan

RE: 52840+freertos+dfu+ advertising+scan

Einar Thorsrud — Mon, 27 May 2024 06:58:46 GMT

I am glad to hear that. Thanks for letting me know!

RE: 52840+freertos+dfu+ advertising+scan

Trump — Mon, 27 May 2024 02:18:14 GMT

Thank you, I solved this issue with your help.

RE: 52840+freertos+dfu+ advertising+scan

Trump — Fri, 24 May 2024 13:47:57 GMT

Okay, I will verify this code. Thank you for your answer. I will let you know as soon as I have the results. Thank you.

RE: 52840+freertos+dfu+ advertising+scan

Einar Thorsrud — Fri, 24 May 2024 13:31:19 GMT

Hi,

A short update from me. It seems the problem is that you do not handle the BLE_GATTS_EVT_SYS_ATTR_MISSING event. This is handled by the peer manager if the application use that (as is the case in the buttonless DFU sample application), but as you don't use the peer manager you must handle it yourself. You can do this by adding this snippet to your event handling in ble_evt_handler():

		case BLE_GATTS_EVT_SYS_ATTR_MISSING:
            // No system attributes have been stored.
            err_code = sd_ble_gatts_sys_attr_set(m_conn_handle, NULL, 0, 0);
            APP_ERROR_CHECK(err_code);
            break;

RE: 52840+freertos+dfu+ advertising+scan

Einar Thorsrud — Fri, 24 May 2024 12:21:59 GMT

There must be a way to fix it, but honestly I stil don't understand what the cause of this issue is. Wha I do see though, is that there ar eproblems allready in the service discovery. You can see it in the sniffer trace, in the GUI, you don't see the CCCD:

Compared with how it should be, as you can see for instance in the screenshot in this post.

RE: 52840+freertos+dfu+ advertising+scan

Trump — Wed, 22 May 2024 00:42:11 GMT

There's no way to fix this. At the moment, I can only use the mobile software for the upgrade work.

RE: 52840+freertos+dfu+ advertising+scan

Einar Thorsrud — Tue, 21 May 2024 10:59:32 GMT

Hi,

Thank you for the sample. I am able to reproduce it with that sample. DFU works with an iPhone, but not with nRF Connect for Desktop. If I test with the buttonless DFK sample from SDK 17.1.0, I can perform buttonless DFU also from nRF Connect for dekstop.

The probelm is not in the bootloader, but the device does not enter DFU mode. From nRF Connect for Dekstop you can see a GATT timeout, and this is also visible in the attached sniffer traces: devzone.nordicsemi.com/.../0842.traces.zip.

I have not been able to see what causes this issue yet though. Have you had any progress on your end?

RE: 52840+freertos+dfu+ advertising+scan

Trump — Sun, 19 May 2024 12:17:07 GMT

devzone.nordicsemi.com/.../2248.examples.zipThis is a simple demo I built. I tested that it can be upgraded using the mobile APP, but cannot be upgraded using the PC software.You can test it by directly replacing it with the SDK

RE: 52840+freertos+dfu+ advertising+scan

Trump — Sun, 19 May 2024 10:53:59 GMT

18:46:22.952

Connection parameters updated for device D6:B2:91:97:3B:A8: interval 100ms, timeout 4000ms, latency: 0

18:46:25.966

Disconnected from device D6:B2:91:97:3B:A8(When I use nRF Connect for Desktop Bluetooth Low Energy, after selecting the upgrade file and clicking the DFU button, this log appears.)

RE: 52840+freertos+dfu+ advertising+scan

Trump — Thu, 16 May 2024 14:28:18 GMT

I forgot to take a screenshot. I used Wireshark to capture and found that when using the DFU service to upload files, there was a display indicating retrieval failure. And then it ended, the app didn't show the upgrade rate chart, it was always empty packets sent by the master and slave. You should be able to quickly reproduce the problem I mentioned using the files I provided.

RE: 52840+freertos+dfu+ advertising+scan

Einar Thorsrud — Thu, 16 May 2024 14:06:29 GMT

I see. I cannot say more at this point then, you need to share details about how you test and how you debug and which results you get.

RE: 52840+freertos+dfu+ advertising+scan

Trump — Thu, 16 May 2024 14:03:25 GMT

Yes, it is included in my main. c, and this definition works. Due to confidentiality reasons, I have deleted all irrelevant and brief information. Sorry.

RE: 52840+freertos+dfu+ advertising+scan

Einar Thorsrud — Thu, 16 May 2024 14:00:31 GMT

Is it defined in a header file that is inlcuded in your main.c? If not, it has no effect.

RE: 52840+freertos+dfu+ advertising+scan

Trump — Thu, 16 May 2024 13:59:22 GMT

By comparison, I have defined it in another file but did not upload it, # define DFU_SUPPORT 1

RE: 52840+freertos+dfu+ advertising+scan

Einar Thorsrud — Thu, 16 May 2024 13:56:49 GMT

Hi,

I do not see DFU_SUPPORT in the list of preprocessor defines, and you use that in the code to decide if the code related to buttonless DFU should be included. So if you have not defined it, it is expecrted that it does not work. So please define it, rebuild and test again. If it does not work, please share in detail how you test and what you have found by testing.

RE: 52840+freertos+dfu+ advertising+scan

Trump — Thu, 16 May 2024 13:53:28 GMT

devzone.nordicsemi.com/.../8875.FreeRTOSConfig.h devzone.nordicsemi.com/.../0842.main.c devzone.nordicsemi.com/.../7380.sdk_5F00_config.h

I am using SEGGER Embedded Studio for ARM 5.42a IDE。

c_preprocessor_definitions="BOARD_PCA10056;CONFIG_GPIO_AS_PINRESET;FLOAT_ABI_HARD;INITIALIZE_USER_SECTIONS;NO_VTOR_CONFIG;NRF52840_XXAA;NRF_SD_BLE_API_VERSION=7;S140;SOFTDEVICE_PRESENT;BL_SETTINGS_ACCESS_ONLY;NRF_DFU_SVCI_ENABLED;NRF_DFU_TRANSPORT_BLE=1;CONFIG_NFCT_PINS_AS_GPIOS;FREERTOS;"

I have very few modification points, and I have uploaded most of the changes I made. It shouldn't be an issue with the bootloader. When I was working today, I tested the Bluetooth slave+freertos demo and it can be upgraded。

demo nrf5_sdk_17.1.0_ddde560\examples\ble_peripheral\ble_app_hrs_freertos+nrf5_sdk_17.1.0_ddde560\examples\ble_peripheral\ble_app_buttonless_dfu。

RE: 52840+freertos+dfu+ advertising+scan

Einar Thorsrud — Thu, 16 May 2024 13:43:26 GMT

I see. Can you test with the debug bootloader suffixed "_debug" and share the RTT log? Also, please explain in detail how you test and what you see, as I cannot say much without more information.

PS: Friday and Monday is public holidays in Norway so I will not be able to get back to you again until Tuesday next week.

RE: 52840+freertos+dfu+ advertising+scan

Trump — Thu, 16 May 2024 13:29:09 GMT

nrf5_sdk_17.1.0_ddde560。examples\dfu\secure_bootloader\pca10056_s140_ble -my Bootloader.

I am using the nrf connect app for DFU upgrade

RE: 52840+freertos+dfu+ advertising+scan

Einar Thorsrud — Thu, 16 May 2024 13:22:56 GMT

Hi,

Which SDK version are you using and how do intend to enter DFU mode? Is it via buttonless DFU (as demonstrated by the buttonless DFU sample), or some other method? What have you found by debugging and observing logs?

RE: 52840+freertos+dfu+ advertising+scan

Trump — Thu, 16 May 2024 00:59:38 GMT

My project uses nrf52840 and Freertos. This project has Bluetooth broadcasting and scanning functions. Bootloader does not use Freertos. When I used software to upgrade DFU in nrf connect, the DFU function did not respond. I created a refresh task using Freertos and it has been running continuously. DFU upgrade not performed