sparkfun NRF9160 thing plus Serial LTE Modem Help

[DC Innovation]

I have the sparkfun NRF9160 thing plus, and using the NRF Connect SDK v1.8.0 in visual studio code I can load programs like Blinky and hello world and everything works great. When I try to upload the Serial LTE Modem Example, I will not build. I get the following error:

^~~~~~
c:\Users\David\Desktop\LTETHREE\SERmodem\src\slm_at_host.c:248:14: note: in expansion of macro 'DT_NODELABEL'
248 | DT_PROP(DT_NODELABEL(uart0), rts_pin),
| ^~~~~~~~~~~~
c:\Users\David\Desktop\LTETHREE\SERmodem\build\zephyr\include\generated\devicetree_unfixed.h:5386:38: error: 'DT_N_S_soc_S_peripheral_40000000_S_uart_8000_P_cts_pin' undeclared (first use in this function); did you mean 'DT_N_S_soc_S_peripheral_40000000_S_uart_8000_P_tx_pin'?
5386 | #define DT_N_NODELABEL_uart0 DT_N_S_soc_S_peripheral_40000000_S_uart_8000
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\Users\David\ncs\v1.8.0\zephyr\include\devicetree.h:2641:24: note: in definition of macro 'DT_CAT'
2641 | #define DT_CAT(a1, a2) a1 ## a2
| ^~
c:\Users\David\Desktop\LTETHREE\SERmodem\src\slm_at_host.c:249:6: note: in expansion of macro 'DT_PROP'
249 | DT_PROP(DT_NODELABEL(uart0), cts_pin));
| ^~~~~~~
C:\Users\David\ncs\v1.8.0\zephyr\include\devicetree.h:2641:24: note: in expansion of macro 'DT_N_NODELABEL_uart0'
2641 | #define DT_CAT(a1, a2) a1 ## a2
| ^~
C:\Users\David\ncs\v1.8.0\zephyr\include\devicetree.h:177:29: note: in expansion of macro 'DT_CAT'
177 | #define DT_NODELABEL(label) DT_CAT(DT_N_NODELABEL_, label)
| ^~~~~~
c:\Users\David\Desktop\LTETHREE\SERmodem\src\slm_at_host.c:249:14: note: in expansion of macro 'DT_NODELABEL'
249 | DT_PROP(DT_NODELABEL(uart0), cts_pin));
| ^~~~~~~~~~~~
[113/319] Linking C static library modules\segger\libmodules__segger.a
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: 'c:\Users\David\ncs\v1.8.0\toolchain\opt\bin\cmake.EXE' --build 'c:\Users\David\Desktop\LTETHREE\SERmodem\build'
The terminal process terminated with exit code: 1.

I'm assuming I need to change something in a configuration file, is that correct?

Thanks in advance!

[Håkon Alseth]

Hi,

 

The log shows that rts and cts is undefined:

DT_PROP(DT_NODELABEL(uart0), cts_pin));

If you create a DTS overlay file for your board, holding this to basically set the RTS/CTS to "disconnected" (you can ofcourse set them to valid gpio numbers if you'd like):

&uart0 {
	cts-pin = <0xFFFFFFFF>;
	rts-pin = <0xFFFFFFFF>;
};

 

and place this in boards/sparkfun_thing_plus_nrf9160_ns.overlay, then it should compile.

PS: remember to re-configure the build after making changes to the DTS.

 

Kind regards,

Håkon

[DC Innovation]

Thanks,

Unfortunately this gave a very similar error:

c:\Users\David\Desktop\acv\vca\build\zephyr\include\generated\devicetree_unfixed.h:5127:38: error: 'DT_N_S_soc_S_peripheral_40000000_S_uart_8000_P_rts_pin' undeclared (first use in this function); did you mean 'DT_N_S_soc_S_peripheral_40000000_S_uart_8000_P_tx_pin'?
5127 | #define DT_N_NODELABEL_uart0 DT_N_S_soc_S_peripheral_40000000_S_uart_8000
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\Users\David\ncs\v1.8.0\zephyr\include\devicetree.h:2641:24: note: in definition of macro 'DT_CAT'
2641 | #define DT_CAT(a1, a2) a1 ## a2
| ^~
c:\Users\David\Desktop\acv\vca\src\slm_at_host.c:248:6: note: in expansion of macro 'DT_PROP'
248 | DT_PROP(DT_NODELABEL(uart0), rts_pin),
| ^~~~~~~
C:\Users\David\ncs\v1.8.0\zephyr\include\devicetree.h:2641:24: note: in expansion of macro 'DT_N_NODELABEL_uart0'
2641 | #define DT_CAT(a1, a2) a1 ## a2
| ^~
C:\Users\David\ncs\v1.8.0\zephyr\include\devicetree.h:177:29: note: in expansion of macro 'DT_CAT'
177 | #define DT_NODELABEL(label) DT_CAT(DT_N_NODELABEL_, label)
| ^~~~~~
c:\Users\David\Desktop\acv\vca\src\slm_at_host.c:248:14: note: in expansion of macro 'DT_NODELABEL'
248 | DT_PROP(DT_NODELABEL(uart0), rts_pin),
| ^~~~~~~~~~~~
c:\Users\David\Desktop\acv\vca\build\zephyr\include\generated\devicetree_unfixed.h:5127:38: note: each undeclared identifier is reported only once for each function it appears in
5127 | #define DT_N_NODELABEL_uart0 DT_N_S_soc_S_peripheral_40000000_S_uart_8000
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\Users\David\ncs\v1.8.0\zephyr\include\devicetree.h:2641:24: note: in definition of macro 'DT_CAT'
2641 | #define DT_CAT(a1, a2) a1 ## a2
| ^~
c:\Users\David\Desktop\acv\vca\src\slm_at_host.c:248:6: note: in expansion of macro 'DT_PROP'
248 | DT_PROP(DT_NODELABEL(uart0), rts_pin),
| ^~~~~~~
C:\Users\David\ncs\v1.8.0\zephyr\include\devicetree.h:2641:24: note: in expansion of macro 'DT_N_NODELABEL_uart0'
2641 | #define DT_CAT(a1, a2) a1 ## a2
| ^~
C:\Users\David\ncs\v1.8.0\zephyr\include\devicetree.h:177:29: note: in expansion of macro 'DT_CAT'
177 | #define DT_NODELABEL(label) DT_CAT(DT_N_NODELABEL_, label)
| ^~~~~~
c:\Users\David\Desktop\acv\vca\src\slm_at_host.c:248:14: note: in expansion of macro 'DT_NODELABEL'
248 | DT_PROP(DT_NODELABEL(uart0), rts_pin),
| ^~~~~~~~~~~~
c:\Users\David\Desktop\acv\vca\build\zephyr\include\generated\devicetree_unfixed.h:5127:38: error: 'DT_N_S_soc_S_peripheral_40000000_S_uart_8000_P_cts_pin' undeclared (first use in this function); did you mean 'DT_N_S_soc_S_peripheral_40000000_S_uart_8000_P_tx_pin'?
5127 | #define DT_N_NODELABEL_uart0 DT_N_S_soc_S_peripheral_40000000_S_uart_8000
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\Users\David\ncs\v1.8.0\zephyr\include\devicetree.h:2641:24: note: in definition of macro 'DT_CAT'
2641 | #define DT_CAT(a1, a2) a1 ## a2
| ^~
c:\Users\David\Desktop\acv\vca\src\slm_at_host.c:249:6: note: in expansion of macro 'DT_PROP'
249 | DT_PROP(DT_NODELABEL(uart0), cts_pin));
| ^~~~~~~
C:\Users\David\ncs\v1.8.0\zephyr\include\devicetree.h:2641:24: note: in expansion of macro 'DT_N_NODELABEL_uart0'
2641 | #define DT_CAT(a1, a2) a1 ## a2
| ^~
C:\Users\David\ncs\v1.8.0\zephyr\include\devicetree.h:177:29: note: in expansion of macro 'DT_CAT'
177 | #define DT_NODELABEL(label) DT_CAT(DT_N_NODELABEL_, label)
| ^~~~~~
c:\Users\David\Desktop\acv\vca\src\slm_at_host.c:249:14: note: in expansion of macro 'DT_NODELABEL'
249 | DT_PROP(DT_NODELABEL(uart0), cts_pin));
| ^~~~~~~~~~~~
[117/313] Building C object CMakeFiles/app.dir/src/slm_at_commands.c.obj
[118/313] Building C object CMakeFiles/app.dir/src/slm_at_tcp_proxy.c.obj
[119/313] Building C object CMakeFiles/app.dir/src/slm_at_udp_proxy.c.obj
[120/313] Building C object CMakeFiles/app.dir/src/slm_at_icmp.c.obj
[121/313] Building C object CMakeFiles/app.dir/src/slm_at_socket.c.obj
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: 'c:\Users\David\ncs\v1.8.0\toolchain\opt\bin\cmake.EXE' --build 'c:\Users\David\Desktop\acv\vca\build'
The terminal process terminated with exit code: 1. 

[Håkon Alseth]

Hi,

 

Did you reconfigure your build?

Ie. delete the build folder and re-generate the project.

 

Kind regards,

Håkon

[DC Innovation]

I did and it still didn't work. I was using the 1.8.0 version of the SDK. After rolling back to the 1.7.1 version, it did work! thanks for the help. I also ran into an issue where the documentation for the Serial LTE Modem was incorrect. I am using documentation from 1.6.0 and that is working. 

[Håkon Alseth]

Hi,

 

In case I did something wrong at my end, I re-tested with ncs v1.7.x and ncs v1.8.0.

in ncs/nrf/applications/serial_lte_modem/boards catalog, I added the sparkfun thing board "sparkfun_thing_plus_nrf9160_ns.overlay", with this content:

&uart0 {
	cts-pin = <0xFFFFFFFF>;
	rts-pin = <0xFFFFFFFF>;
};

Works on both versions at my end.

 

DC Innovation said:

I also ran into an issue where the documentation for the Serial LTE Modem was incorrect. I am using documentation from 1.6.0 and that is working. 

Oh, that is not good! My apologies for this! Could you point me to where the docs were misleading?

 

Kind regards,

Håkon

[DC Innovation]

The documentation for version 1.7.1 in the MQTT AT commands doesn't list the data type as an argument when publishing. Here is the example:

AT#XMQTTPUB="nrf91/slm/mqtt/topic0","Test message with QoS 0",0,0

After successfully uploading 1.7.1, I tried to publish data, but without the data type argument the modem would get stuck in a publish mode.

When I tried the documentation from 1.6.1, I saw a data type mentioned and tried to publish data starting with this example:

AT#XMQTTPUB="nrf91/slm/mqtt/topic0",1,"Test message with QoS 0",0,0

At this point everything works as expected!