nRF52840: Console commandline over BLE (BLE CLI) usage

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

Duy — Wed, 29 May 2019 09:39:20 GMT

I agree with awneil about the documenting about "adding enter for the line break". It is confusing with the EOL in the application. This also makes me wonder that the mobile app doesn't send out the CR, LF or CR + LF.

awneil I am still debugging the reason of

[quote userid="6462" url="~/f/nordic-q-a/47667/nrf52840-console-commandline-over-ble-ble-cli-usage/189807"]The is received but all are 0x00[/quote]

inside the code. Thank you for your support also.

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

awneil — Wed, 29 May 2019 09:04:04 GMT

It makes sense once you know - but it is certainly not obvious!

Would be good if this were documented.

But it still doesn't explain:

[quote userid="27129" url="~/f/nordic-q-a/47667/nrf52840-console-commandline-over-ble-ble-cli-usage/189620"]The is received but all are 0x00[/quote]

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

Vidar Berg — Wed, 29 May 2019 07:33:29 GMT

I think it makes sense: the app allows you to select if you want to send a LF, CR or both when you press enter. Otherwise, you would have been limited to 1 EOL per button.

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

Duy — Wed, 29 May 2019 07:14:54 GMT

Hello Vidar Berg,

Thank you for your answer. It works for me now. This error is...so funny.

One more question: is it because of the library fault or the application fault?

Best regards,

Duy

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

Vidar Berg — Wed, 29 May 2019 06:17:12 GMT

I've tested it with the Toolbox app now. Turns out that you have to press enter for the line break to be inserted. Like this:

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

Duy — Tue, 28 May 2019 11:58:06 GMT

The is received but all are 0x00. I also attached the configuration from my phone.

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

Duy — Tue, 28 May 2019 11:46:08 GMT

Hi awneil

Currently it stop at

p_instance->p_cb->handler(NRF_CLI_TRANSPORT_EVT_RX_RDY, p_instance->p_cb->p_context);

in side function nus_data_handler. This function is init as a callback inside ret_code_t nrf_cli_ble_uart_service_init(void)

        case BLE_NUS_EVT_RX_DATA:
        {
            NRF_LOG_INFO("Conn_handle:%d, Received: %d",
                     p_instance->p_cb->conn_handle, p_nus_evt->params.rx_data.length);
            NRF_LOG_HEXDUMP_DEBUG(p_nus_evt->params.rx_data.p_data, p_nus_evt->params.rx_data.length);
            size_t len = ((size_t) p_nus_evt->params.rx_data.length) & 0x0000FFFF;
            err_code = nrf_ringbuf_cpy_put(p_instance->p_rx_ringbuf,
                                           p_nus_evt->params.rx_data.p_data,
                                           (size_t *)&len);
            ASSERT(err_code == NRF_SUCCESS);

            p_instance->p_cb->handler(NRF_CLI_TRANSPORT_EVT_RX_RDY, p_instance->p_cb->p_context);
            break;
        }

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

awneil — Tue, 28 May 2019 11:24:45 GMT

[quote userid="27129" url="~/f/nordic-q-a/47667/nrf52840-console-commandline-over-ble-ble-cli-usage/189590"]I tried to add \r \n or both \r\n[/quote]

What, exactly, did you do?

Show a screenshot.

What did your peripheral receive?

(I'm not sure that the apps will interpret \n or \r - they might just send a backslash followed by the letter...)

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

awneil — Tue, 28 May 2019 11:22:03 GMT

[quote userid="27129" url="~/f/nordic-q-a/47667/nrf52840-console-commandline-over-ble-ble-cli-usage/189590"]nothing happened[/quote]

Nothing?

So, again, debug from there!

You said that the command was being received - SO, what happens next ... ?

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

Duy — Tue, 28 May 2019 11:16:41 GMT

[quote userid="4240" url="~/f/nordic-q-a/47667/nrf52840-console-commandline-over-ble-ble-cli-usage/189476"][/quote]

Hi,

Try to append a newline (\n - 0x0d) to your command.

Hi Vidar Berg,

I tried to add \r \n or both \r\n from my android phone (also my iOS device) but nothing happened.

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

awneil — Tue, 28 May 2019 09:00:54 GMT

[quote userid="4240" url="~/f/nordic-q-a/47667/nrf52840-console-commandline-over-ble-ble-cli-usage/189476"]a newline (\n - 0x0d[/quote]

0x0D is a Carriage Return (CR);

0x0A is a Newline (aka Line Feed, LF).

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

Vidar Berg — Tue, 28 May 2019 07:42:59 GMT

Hi,

Try to append a newline (\n - 0x0d) to your command.

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

awneil — Thu, 23 May 2019 10:52:46 GMT

so debug from there ...

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

Duy — Thu, 23 May 2019 10:40:02 GMT

Hi awneil,

The command is received but it is not actioned.

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

awneil — Thu, 23 May 2019 10:33:16 GMT

[quote userid="27129" url="~/f/nordic-q-a/47667/nrf52840-console-commandline-over-ble-ble-cli-usage/188788"]there is nothing happens[/quote]

You mean the command is not received, or it is just not actioned?

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

Duy — Thu, 23 May 2019 10:16:18 GMT

Hi awneil,

I am running the ble_app_cli and when I send "led on" and "led off" through nRF Connect or nRF Toolbox app, there is nothing happens. When I control through UART CLI it works.

I want to control nRF52840 through BLE CLI so I test the example first.

I also add CR/LF when sending but it still doesn't work.

RE: nRF52840: Console commandline over BLE (BLE CLI) usage

awneil — Thu, 23 May 2019 09:59:22 GMT

It worked for me!

[quote userid="27129" url="~/f/nordic-q-a/47667/nrf52840-console-commandline-over-ble-ble-cli-usage"] I tried to control the nRF52840 through BLE using "led on" and "led off"[/quote]

Sorry - not clear what you mean by that?

Please describe in detail what, exactly, you are doing.

I did find that you need a CR (and/or LF?) on the end for the command to be executed ...