nrf9160 MQTT example

RE: nrf9160 MQTT example

rkguy — Sun, 03 Mar 2019 22:52:59 GMT

When you say we need to build an flash secure_boot again, do you mean before or after MQTT_simple?

RE: nrf9160 MQTT example

rkguy — Sun, 03 Mar 2019 21:51:44 GMT

Also, this guide was by far the most helpful for a windows user (note, use CMDline not powershell)
developer.nordicsemi.com/.../index.html

RE: nrf9160 MQTT example

rkguy — Sun, 03 Mar 2019 21:49:58 GMT

FYI this should be updated to reflect the 10090 instead of 10040
```# Use cmake to configure a Ninja-based build system: cmake -GNinja -DBOARD=nrf9160_pca10040 .
developer.nordicsemi.com/.../index.html

RE: nrf9160 MQTT example

BillyBobJoe — Wed, 27 Feb 2019 17:46:52 GMT

This is odd as I'm trying to program my nrf52 DK (10040 & 10056) but give me the same error.

***** BUS FAULT *****
Precise data bus error
BFAR Address: 0x2730303f
***** Hardware exception *****
Current thread ID = 0x20001880
Faulting instruction address = 0x9778
Fatal fault in thread 0x20001880! Aborting.

What should I do with these boards?

RE: nrf9160 MQTT example

Dominik Windhab — Wed, 20 Feb 2019 16:23:00 GMT

Hi! Thanks for the hint to the ncs documentation. It seems like I missed that. Compiling and flashing works now. Thanks for the help!

There is another issue now, but I'll post this separatly.

RE: nrf9160 MQTT example

Martin Lesund — Wed, 20 Feb 2019 10:26:07 GMT

Hi Dominik,

Which guide did you follow?

Did you follow the guide listed in the ncs documentation?

The reason I am asking this is because your folder setup should look like this:

(not with the 'zephyrproject' folder included)

If you clean up in that regards, and following the guide I proposed I think the issue should be resolved.

Also, the error log you got could be helpful to share as well.

I need to come back to you with regards to SES IDE support on the master branch.

RE: nrf9160 MQTT example

Dominik Windhab — Tue, 19 Feb 2019 08:53:18 GMT

Hi!

I had a couple of days off, but now I tried to do the build via command line. Works fine until I want to run "ninja flash". It says that I have to install west:

[0/1] cmd.exe /C "cd /D C:\Users\***\Documents\workspace\nrf91_src_root\ncs...est bootstrapper with: 'pip install west --user', and thereafter 'west init'.""
West was not found in path. To support 'C:/ProgramData/chocolatey/bin/ninja.exe flash', please install west bootstrapper with: 'pip install west --user', and thereafter 'west init'.

So I installed west like in the documentation for already existing repositories with the enclosing zephyrproject folder. So the structure is "ncs/zephyrproject/zephyr". But this seems to confuse cmake as it quits with an error.

Any hints on how to make "ninja flash" work? Whats the correct way to install west for this purpose?

Are there any updates regarding building and flashing via SES?

Thanks!

RE: nrf9160 MQTT example

robmilne — Tue, 12 Feb 2019 21:12:56 GMT

OK, I exported the location so that nrfjprog is accessible but I get this error now...

rob@rob-VirtualBox:~/dev/ncs/nrf/samples/nrf9160/mqtt_simple/build$ west -v flash --skip-rebuild
ZEPHYR_BASE=/home/rob/dev/ncs/zephyr (origin: manifest file /home/rob/dev/ncs/nrf/west.yml)
Using runner: nrfjprog
nrfjprog --ids
Flashing file: /home/rob/dev/ncs/nrf/samples/nrf9160/mqtt_simple/build/zephyr/zephyr.hex
nrfjprog --program /home/rob/dev/ncs/nrf/samples/nrf9160/mqtt_simple/build/zephyr/zephyr.hex -f NRF91 --snr 960011468 --sectorerase
ERROR: JLinkARM DLL reported an error. Try again. If error condition
ERROR: persists, run the same command again with argument --log, contact Nordic
ERROR: Semiconductor and provide the generated log.log file to them.
ERROR: command exited with status 33: nrfjprog --program /home/rob/dev/ncs/nrf/samples/nrf9160/mqtt_simple/build/zephyr/zephyr.hex -f NRF91 --snr 960011468 --sectorerase
Traceback (most recent call last):
File "/home/rob/dev/ncs/.west/west/src/west/main.py", line 505, in main
args.handler(args, unknown)
File "/home/rob/dev/ncs/.west/west/src/west/main.py", line 326, in ext_command_handler
command.run(*west_parser.parse_known_args(argv))
File "/home/rob/dev/ncs/.west/west/src/west/commands/command.py", line 85, in run
self.do_run(args, unknown)
File "/home/rob/dev/ncs/zephyr/scripts/west_commands/flash.py", line 32, in do_run
'ZEPHYR_BOARD_FLASH_RUNNER')
File "/home/rob/dev/ncs/zephyr/scripts/west_commands/run_common.py", line 246, in do_run_common
runner.run(command_name)
File "/home/rob/dev/ncs/zephyr/scripts/west_commands/runners/core.py", line 407, in run
self.do_run(command, **kwargs)
File "/home/rob/dev/ncs/zephyr/scripts/west_commands/runners/nrfjprog.py", line 128, in do_run
self.check_call(cmd)
File "/home/rob/dev/ncs/zephyr/scripts/west_commands/runners/core.py", line 466, in check_call
subprocess.check_call(cmd)
File "/usr/lib/python3.6/subprocess.py", line 291, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['nrfjprog', '--program', '/home/rob/dev/ncs/nrf/samples/nrf9160/mqtt_simple/build/zephyr/zephyr.hex', '-f', 'NRF91', '--snr', '960011468', '--sectorerase']' returned non-zero exit status 33.

..sorry for being a pain.

RE: nrf9160 MQTT example

Martin Lesund — Tue, 12 Feb 2019 14:29:00 GMT

Yes, I am sorry for not mentioning that.
As for now you cannot build master in SES, only with the terminal method. (this is being worked on to be fixed)

RE: nrf9160 MQTT example

Dominik Windhab — Tue, 12 Feb 2019 14:26:23 GMT

Hi! I just updated all repos to the latest master branch and tried to build the secure_boot and mqtt_simple. In SES both builds failed with the following output:

Rebuilding ‘zephyr/include/generated/offsets.h’ from solution ‘build’ in configuration ‘Common’
1> Combining ‘zephyr/include/generated/offsets.h’
1> Traceback (most recent call last):
1> File "C:/Users/***/Documents/workspace/nrf91_src_root/ncs/zephyr/scripts/gen_offset_header.py", line 72, in <module>
1> input_file = open(args.input, 'rb')
1> FileNotFoundError: [Errno 2] No such file or directory: 'C:/Users/***/Documents/workspace/nrf91_src_root/ncs/nrf/samples/nrf9160/secure_boot/build/zephyr/CMakeFiles/offsets.dir/arch/arm/core/offsets/offsets.c.obj'
Build failed

Is building in SES still an issue? Shall I try via terminal?

RE: nrf9160 MQTT example

Martin Lesund — Tue, 12 Feb 2019 13:58:43 GMT

Hi Dominik,

If you are having any issues building/flashing this, please update the zephyr and nrf repos since there have been introduced some fixes.

Either through 'git pull'

or use west.

(additional info about 'west')

RE: nrf9160 MQTT example

Martin Lesund — Tue, 12 Feb 2019 07:50:22 GMT

Hi Rob,

You need to add nrfjprog to PATH (set the path in Linux), so your terminal can find the program

RE: nrf9160 MQTT example

robmilne — Mon, 11 Feb 2019 17:53:49 GMT

Same result after untar of that archive into my /opt/SEGGER/JLink directory. Is there a variable that I can 'export' so that ninja can find nrfjprog?

RE: nrf9160 MQTT example

Martin Lesund — Mon, 11 Feb 2019 09:28:54 GMT

Hi Rob,

You are missing the nRF command Line Tools.

Please download it and it should work.

RE: nrf9160 MQTT example

robmilne — Fri, 08 Feb 2019 20:54:35 GMT

Hi Martin,

I followed the 7 steps above but cannot flash because of this error:

FileNotFoundError: [Errno 2] No such file or directory: 'nrfjprog': 'nrfjprog'

I ran pip3 install --user pynrfjprog and retried but it made no difference. Any suggestions?

-rob

RE: nrf9160 MQTT example

Martin Lesund — Tue, 05 Feb 2019 16:20:41 GMT

Hi Dominik,

If you are going to use the latest updates in the master branch to nrf, you should also make sure that you are in the master branches to the other repos and update them to the latest:

cd <sourcecode_root>\ncs\zephyr ; git checkout master ; git pull
cd <sourcecode_root>\ncs\mcuboot ; git checkout master ; git pull
cd <sourcecode_root>\ncs\nrf ; git checkout master ; git pull
cd <sourcecode_root>\ncs\nrfxlib ; git checkout master ; git pull

Unfortunately, there is an issue with building using SES with the latest master branch (I can assure you that we are working on fixing this).

Workaround:
In the meantime you can build the application via the terminal, where the board name for a non-secure project has changed to “nrf9160_pca10090ns”.

Here’s the way to generate/compile a project from terminal:

export ZEPHYR_TOOLCHAIN_VARIANT=gnuarmemb
export GNUARMEMB_TOOLCHAIN_PATH="/path/to/gcc-arm-none-eabi-Qx-2018/"
source /path/to/ncs/zephyr/zephyr-env.sh
cd /path/to/ncs/nrf/samples/nrf9160/mqtt_simple/
mkdir build && cd build
cmake .. -DBOARD=nrf9160_pca10090ns -GNinja
ninja flash

- If your build folder exists, you might need to clear it (delete the content) first.

(use ninja to compile and/or ninja flash to compile and flash to the kit)

Note that you also need to build/flash the secure_boot sample again to be sure that everything is on the right memory area.

Please note that when building for secure_boot you need to use this command instead:

cmake .. -DBOARD=nrf9160_pca10090 -GNinja

(note that it does not have the ns at the end ["non-secure"])

It should look something like this:

I must apologize for the inconvenience this may have caused.

Best Regards,

Martin L.

RE: nrf9160 MQTT example

Dominik Windhab — Tue, 05 Feb 2019 14:55:54 GMT

Hi! Thanks for the answer. There is something very strange going on.

So I am able to compile and flash secure_boot, at_client, asset_tracker, and the NTP example. Everything seems to work. Serial output looks ok.

(...)

Now opening and compiling the mqtt_simple example from the master branch.

After build and run the output in segger studio is:

(...)

Preparing target for download
Executing script TargetInterface.resetAndStop()
Reset: Halt core after reset via DEMCR.VC_CORERESET.
Reset: Reset device via AIRCR.SYSRESETREQ.
Downloading ‘zephyr.elf’ to J-Link
Programming 83.3 KB of addresses 00000000 — 00014d37
Programming 0.4 KB of addresses 00014d38 — 00014edb
J-Link: Flash download: Bank 0 @ 0x00000000: 1 range affected (16384 bytes)
J-Link: Flash download: Total time needed: 0.570s (Prepare: 0.042s, Compare: 0.041s, Erase: 0.357s, Program: 0.120s, Verify: 0.000s, Restore: 0.007s)
Download successful

Console output:

Secure Boot: SPU: set SRAM region 30 as Non-Secure
Secure Boot: SPU: set SRAM region 31 as Non-Secure
Secure Boot: configure peripherals
Secure Boot: MSP_NS 200265f0
Secure Boot: prepare to jump to Non-Secure image
***** Booting Zephyr OS v1.13.99-ncs2 *****
The AT host sample started
***** BUS FAULT *****
Precise data bus error
BFAR Address: 0x4002a514
***** Hardware exception *****
Current thread ID = 0x2000031c
Faulting instruction address = 0x6f74
Fatal fault in essential thread! Spinning...

Reset and power cycle leads to the same result. Immediate output is always "Bus Fault".

Now I tried to reprogram the at_client. But it seems like flashing another application is not possible. The output is the following:

(...)
Preparing target for download
Executing script TargetInterface.resetAndStop()
Reset: Halt core after reset via DEMCR.VC_CORERESET.
Reset: Reset device via AIRCR.SYSRESETREQ.
Downloading ‘zephyr.elf’ to J-Link
Programming 78.3 KB of addresses 00040000 — 0005397b
Programming 0.4 KB of addresses 0005397c — 00053b23
J-Link: Flash download: Bank 0 @ 0x00000000: Skipped. Contents already match
Download successful

The only thing I can do is re-flashing the secure_boot sample. After that, the device starts to run the at_client

It seems like there is a problem when flashing the mqtt_client sample.

Is anybody experiencing similar problems?

RE: nrf9160 MQTT example

shibshab — Tue, 05 Feb 2019 12:48:56 GMT

Build and program the samples/nrf9160/secure_boot/ example first, then it should work.

This is needed since the SPU peripheral needs to be configured with a "NON SECURE" area, in which the MQTT example will reside.

The secure_boot sample performs this configuration.