Extending the Thread Cloud CoAP Client Example with peripheral Hardware

RE: Extending the Thread Cloud CoAP Client Example with peripheral Hardware

Jørgen Holmefjord — Tue, 22 May 2018 09:26:13 GMT

What do you mean by this?

[quote user="Apfelsine"]I can't see any UART output from my second USB port[/quote]

Have you connected the UART interface to some serial to USB converter? Which pins are you using for the second UART interface?

RE: Extending the Thread Cloud CoAP Client Example with peripheral Hardware

Apfelsine — Sun, 20 May 2018 15:43:20 GMT

I just reinstalled the nRF5 SDK v15.0.0. Then I added again to my serial main.c the creation of a second UART instance. Now it compiles without error. However, I can't see any UART output from my second USB port. I see output on the PDK USB interface port(P0.08,P0.06). Any suggestions? In the mean time I ordered a Logic Analyzer.

RE: Extending the Thread Cloud CoAP Client Example with peripheral Hardware

Jørgen Holmefjord — Mon, 14 May 2018 14:01:12 GMT

You can't use instance 0 for both serial connections. Did you try changing nrfx_uarte.h as I suggested in my previous post?

RE: Extending the Thread Cloud CoAP Client Example with peripheral Hardware

Apfelsine — Thu, 10 May 2018 18:52:03 GMT

I didn't change file nrfx_uarte.h. However if I change the second serial uart definition statement in my main.c from

the program will compile with no error. I am just not sure if the second instance # should be 0?

May I suggest to the Nordic team to publish another Serial Example with two uart instances. It will definitely benefit me and others too.

RE: Extending the Thread Cloud CoAP Client Example with peripheral Hardware

Jørgen Holmefjord — Wed, 09 May 2018 07:56:40 GMT

I meant if you changed the file nrfx_uarte.h? In your second screenshot from your earier post, line 83 shows .drv_inst_idx = NRFX_CONCAT_3(NRFX_UARTE1, id, _INST_IDX), while in the original file this line should be .drv_inst_idx = NRFX_CONCAT_3(NRFX_UARTE, id, _INST_IDX). You need to remove the added number '1'.

RE: Extending the Thread Cloud CoAP Client Example with peripheral Hardware

Apfelsine — Tue, 08 May 2018 17:48:59 GMT

Yes, I did modify the main.c file:

I was just following the post

https://devzone.nordicsemi.com/f/nordic-q-a/25173/nrf52840-uart1-not-working-in-sdk-14 with attached main file 1715.main.c. This Serial Port Library Example shows two instances of the port interface for testing. One test is for GPIOs P0.06, P0.08 and one test is for P0.26, P0.27. I thought that it is the same scenario I like to accomplish. Do I have the right approach?

RE: Extending the Thread Cloud CoAP Client Example with peripheral Hardware

Jørgen Holmefjord — Tue, 08 May 2018 08:07:40 GMT

Did you modify the file? Line 83 of nrfx_uaerte.h should say NRFX_UARTE, not NRFX_UARTE1 as it does in your screenshot.

RE: Extending the Thread Cloud CoAP Client Example with peripheral Hardware

Apfelsine — Mon, 07 May 2018 17:38:18 GMT

Jorgen, thank you for your guidance. I don’ t plan to use the BLE part of the UART examples. I rather plan to use only the HW UART part. The serial example(serial_pca10056.hex) seems like a good example. As the Thread Cloud CoAP Client Example uses the CLI on UART0 peripheral I want to use the UARTE1 peripheral to implement a UART connection to a second device. Looking at the serial_pca10056 example and the sdk_config.h, I enabled the UARTE1 instance

and caused an error compiling

RE: Extending the Thread Cloud CoAP Client Example with peripheral Hardware

Jørgen Holmefjord — Wed, 02 May 2018 14:07:18 GMT

Hi,

Are you planning to use the BLE part of ble_app_uart example (Nordic UART service - UART emulation over BLE), or only the HW UART part? There is a basic UART example and another serial example using a newer UART library, in the SDK, if you do not need the BLE part.

If you are planning to integrate the BLE part as well, you need to follow the guidelines in Multiprotocol support documentation, and the page Adding dynamic multiprotocol Thread support to BLE examples.

Also note that the Thread Cloud CoAP Client Example use the CLI on UART0 peripheral. If you are implementing UART connections to a second device, this must use UARTE1 peripheral.

Best regards,
Jørgen