Hi,
Im tryin to use the ble_dfu service example from SDK12, I get DFU SERVICE NOT FOUND when trying to update from Android. Any suggestions what to look for?
I use S132v3, bootloader is flashed and I performed successful upload of the application via BLE when there was no app loaded.
I've checked it against clean sdk installation and it works. Here's the diff against freshly unpacked version of the sdk
diff --git a/nRF5x_SDK12/components/ble/ble_services/ble_dfu/ble_dfu.c b/nRF5x_SDK12/components/ble/ble_services/ble_dfu/ble_dfu.c
index 266d10c..2ad5d5c 100644
--- a/nRF5x_SDK12/components/ble/ble_services/ble_dfu/ble_dfu.c
+++ b/nRF5x_SDK12/components/ble/ble_services/ble_dfu/ble_dfu.c
@@ -88,6 +88,7 @@ static uint32_t rx_char_add(ble_dfu_t * p_dfu, const ble_dfu_init_t * p_dfu_init
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.notify = 1;
+ char_md.char_props.write = 1;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
I use experimental_ble_app_buttonless_dfu as my guinea pig and nRF Connect for Android or PC as the trigger app. After connecting to Nordic_template enable notification on the unknown characteristic (DFU control point) inside unknown service (write 0x01 into it's CCCD) and then write 0x01 as characteristic value. Connection should be dropped and board should reboot. If you enable RTT logging the log will clearly say that it's going into bootloader.
Hi, I'm having the same problem. After enabling notifications and writing 0x01 as characteristic value, the device doesn't enter bootloader mode. This is the APP log:
APP:INFO:Device is entering bootloader mode!
:INFO:Erasing old settings at: 0x200021ac
:INFO:Erasing: 0x200021ac, num: 1
:INFO:Erase failed: 6
:INFO:Failed to erase bootloader settings
Looks like device is trying to enter the bootloader mode, but is unble to. I have tried with both debug bootloader and normal one.
As a Nordic employee I can confirm that this is a bug in the experimental buttonless DFU example. As correctly observed by @keton , the characteristic does not have the property enabled, i.e. the following line is missing.
char_md.char_props.write = 1;
I added the "char_md.char_props.write = 1;" change. I still receive the following error from nrfutil:
Traceback (most recent call last):
File "C:\Python27\Scripts\nrfutil-script.py", line 9, in <module>
load_entry_point('nrfutil==1.5.3', 'console_scripts', 'nrfutil')()
File "c:\python27\lib\site-packages\click\core.py", line 716, in __call__
return self.main(*args, **kwargs)
File "c:\python27\lib\site-packages\click\core.py", line 696, in main
rv = self.invoke(ctx)
File "c:\python27\lib\site-packages\click\core.py", line 1060, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "c:\python27\lib\site-packages\click\core.py", line 1060, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "c:\python27\lib\site-packages\click\core.py", line 889, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "c:\python27\lib\site-packages\click\core.py", line 534, in invoke
return callback(*args, **kwargs)
File "c:\python27\lib\site-packages\nordicsemi\__main__.py", line 613, in ble
dfu.dfu_send_images()
File "c:\python27\lib\site-packages\nordicsemi\dfu\dfu.py", line 122, in dfu_send_images
self._dfu_send_image(self.manifest.application)
File "c:\python27\lib\site-packages\nordicsemi\dfu\dfu.py", line 83, in _dfu_send_image
self.dfu_transport.open()
File "c:\python27\lib\site-packages\nordicsemi\dfu\dfu_transport_ble.py", line 193, in open
target_device_addr = self.target_device_addr)
File "c:\python27\lib\site-packages\nordicsemi\dfu\dfu_transport_ble.py", line 98, in connect
self.adapter.enable_notification(conn_handle=self.conn_handle, uuid=DFUAdapter.CP_UUID)
File "c:\python27\lib\site-packages\wrapt\wrappers.py", line 561, in __call__
args, kwargs)
File "c:\python27\lib\site-packages\pc_ble_driver_py\ble_driver.py", line 115, in wrapper
err_code = wrapped(*args, **kwargs)
File "c:\python27\lib\site-packages\pc_ble_driver_py\ble_adapter.py", line 228, in enable_notification
raise NordicSemiException('CCCD not found')
pc_ble_driver_py.exceptions.NordicSemiException: CCCD not found
I made the following change to ble_dfu.h:
-#define BLE_DFU_BASE_UUID {{0x50, 0xEA, 0xDA, 0x30, 0x88, 0x83, 0xB8, 0x9F, 0x60, 0x4F, 0x15, 0xF3, 0x00, 0x00, 0x40, 0x8E}} /**< Used vendor specific UUID. */
+#define BLE_DFU_BASE_UUID {{0x50, 0xEA, 0xDA, 0x30, 0x88, 0x83, 0xB8, 0x9F, 0x60, 0x4F, 0x15, 0xF3, 0x00, 0x00, 0xC9, 0x8E}} /**< Used vendor specific UUID. */
nrfutil now gives a different error:
Traceback (most recent call last):
File "C:\Python27\Scripts\nrfutil-script.py", line 9, in <module>
load_entry_point('nrfutil==1.5.3', 'console_scripts', 'nrfutil')()
File "c:\python27\lib\site-packages\click\core.py", line 716, in __call__
return self.main(*args, **kwargs)
File "c:\python27\lib\site-packages\click\core.py", line 696, in main
rv = self.invoke(ctx)
File "c:\python27\lib\site-packages\click\core.py", line 1060, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "c:\python27\lib\site-packages\click\core.py", line 1060, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "c:\python27\lib\site-packages\click\core.py", line 889, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "c:\python27\lib\site-packages\click\core.py", line 534, in invoke
return callback(*args, **kwargs)
File "c:\python27\lib\site-packages\nordicsemi\__main__.py", line 613, in ble
dfu.dfu_send_images()
File "c:\python27\lib\site-packages\nordicsemi\dfu\dfu.py", line 122, in dfu_send_images
self._dfu_send_image(self.manifest.application)
File "c:\python27\lib\site-packages\nordicsemi\dfu\dfu.py", line 90, in _dfu_send_image
self.dfu_transport.send_init_packet(data)
File "c:\python27\lib\site-packages\nordicsemi\dfu\dfu_transport_ble.py", line 227, in send_init_packet
response = self.__select_command()
File "c:\python27\lib\site-packages\nordicsemi\dfu\dfu_transport_ble.py", line 323, in __select_command
return self.__select_object(0x01)
File "c:\python27\lib\site-packages\nordicsemi\dfu\dfu_transport_ble.py", line 333, in __select_object
response = self.__get_response(DfuTransportBle.OP_CODE['ReadObject'])
File "c:\python27\lib\site-packages\nordicsemi\dfu\dfu_transport_ble.py", line 388, in __get_response
raise NordicSemiException('No Response: 0x{:02X}'.format(resp[0]))
pc_ble_driver_py.exceptions.NordicSemiException: No Response: 0x20