How to configue an external UART from nRF9160 dk ?

RE: How to configue an external UART from nRF9160 dk ?

Simonr — Thu, 03 Dec 2020 13:34:50 GMT

Well, what pins have you configured the UART to use now, and how is the device connected to this external port?

Best regards,

Simon

RE: How to configue an external UART from nRF9160 dk ?

Zita25 — Thu, 03 Dec 2020 08:59:42 GMT

Hi,

so i added this in my kcong file :

"config UART_1_NRF_UARTE
    bool
    default n
    select NRF_UARTE_PERIPHERAL
    depends on UART_NRFX && SERIAL
    help
      Enable nRF UART with EasyDMA on port 1."

Did I understand right ?

Now i have no problem to open and reload my project.

UART1 isn't see like a port COM now, wich it is a good news but i see nothing in my external port by a terminal Putty. So did i miss something else ?

Best Regards

Zita

RE: How to configue an external UART from nRF9160 dk ?

Simonr — Mon, 30 Nov 2020 10:37:00 GMT

Please see this part of your output log: UART_1_NRF_UARTE (defined at drivers(serial/Kconfig.mrfx:94) is assigned in a configuration file, but not user-configurable as it has no prompt. It gets its value indirectly from other symbols. See "">docs.zephyrproject.org/.../CONFIG_UART_1_NRF_UARTE.html" or look up UART_1_NRF_UARTE in the menuconfig/guiconfig interface for more information.

Best regards,

Simon

RE: How to configue an external UART from nRF9160 dk ?

Zita25 — Fri, 27 Nov 2020 14:51:19 GMT

Yes, here are the erreur log

there is 26 characters

But what il don't understand is when i don't have the line CONFIG_UART_1_NRF_UARTE=y in my prj.conf everything is ok except i don't have an external uart. it is when i has this line than the problems come

i put here my prj.conf file part for uart

Best Regards

Zita

RE: How to configue an external UART from nRF9160 dk ?

Simonr — Fri, 27 Nov 2020 13:47:24 GMT

It seems like you're not using the Toolchain Manager in nRFConnect for Desktop which is the recommended way to set up NCS in Windows. It also seems like you're using one of the release candidates for NCS 1.4, and not the actual release. Is there any log in the "Output" panel after you run into this error? And how many characters are there in the build folder path, it might be a path-length problem as well.

Best regards,

Simon

RE: How to configue an external UART from nRF9160 dk ?

Zita25 — Fri, 27 Nov 2020 12:51:41 GMT

Ok Thanks

Yes, it's that and when modifiy my file prj.conf for enable the uart.

Best regards,

Zita

RE: How to configue an external UART from nRF9160 dk ?

Simonr — Fri, 27 Nov 2020 11:50:58 GMT

Yes, there are in total three COM ports from the nRF9160 DK, but only two of these (VCOM0 and VCOM2) are connected to the nRF9160 chip, sorry about the confusion. For details on routing VCOM0 and VCOM2, please see the nRF9160 DK board control on page 19 of the nRF9160 DK user guide.

As for the create_nordic_project.py failed error you are seeing, this is occurring when trying to set up a project in SES, correct? Can you show me a screenshot of the nRF Connect Options window before you press OK and this error occurs?

Best regards,

Simon

RE: How to configue an external UART from nRF9160 dk ?

Zita25 — Fri, 27 Nov 2020 10:26:43 GMT

It crash when I reload the app, i have this message erreur : " create_nordic_project.py failed ". I'm confuse because i always had three ports.

Best regards,

Zita

RE: How to configue an external UART from nRF9160 dk ?

Simonr — Fri, 27 Nov 2020 10:19:32 GMT

How exactly does the application crash? Are you able to see any error codes what so ever while debugging? A note to the COM port. The nRF91DK should always show two COM ports in the device manager, and you shouldn't see a "new" COM port popping up. It will always be present, even though the firmware doesn't use it.

Best regards,

Simon

RE: How to configue an external UART from nRF9160 dk ?

Zita25 — Thu, 26 Nov 2020 14:56:22 GMT

So in my project BSD_LIBRARy_TRACE_ENABLED is not enabled and i have add CONFIG_UART_1_NRF_UARTE=y in mt prj.conf but it crashes when i restart the app.

Thanks

Best Regards

Zita

RE: How to configue an external UART from nRF9160 dk ?

Simonr — Thu, 26 Nov 2020 13:25:15 GMT

Hi Zita

For most of the nRF91 applications, the default software settings for UART0 and UART1 are that they are routed to VCOM0 and VCOM2 respectively. UART0 is the "primary" UART where you get the console data as well as data from the AT host library, while UART1 can be used for modem tracing when you have enabled the BSD_LIBRARY_TRACE_ENABLED configuration.

Please check whether this configuration is enabled in your application or whether UART1 is used for something else. Please also try adding CONFIG_UART_1_NRF_UARTE=y to prj.conf as well.

Best regards,

Simon