Thread CLI not working in BC840DK

[Sunil vignesh]

Hi I am testing the Thread examples

I worked on SIMPLE_COAP_EXAMPLE in nrf52840 DK there it works fine while opening UART and enter to CLI commands and its working

but i have implement same code to the board BC840DK where the uart pins are P1.01,P1.02 (RX,TX)

I can doubt that due to uart pin change the cli doesn't work for bc840dk but i don't know where to config the cli uart lines

[Jørgen Holmefjord]

Hi,

The UART pins are hardcoded in the OpenThread libraries. To change the UART pins, you need to rebuild the libraries according to the instructions in Building the latest OpenThread libraries.

The pins must be configured in transport-config.h.

Best regards,
Jørgen

[Jørgen Holmefjord]

Hi,

For nRF5 SDK for T&Z v4.0.0, the UART pin config is located in the file platform-config.h.

The libraries needs to be recompiled for each board unfortunately, it is not possible to configure UART pins in the board headers in nRF5 SDK. For nRF Connect SDK, the OpenThread source files are (if configured) built for each project, which means that it can get the UART pin config directly from the build/configuration system.

Best regards,
Jørgen

[Jørgen Holmefjord]

Did you clone or download OpenThread from GitHub, as described in Building the latest OpenThread libraries? After cloning from GitHub, you need to checkout the appropriate commit used by the SDK (described in \external\openthread\project\readme.txt):

// From root of SDK directory:

cd external\openthread\project\
git clone https://github.com/openthread/openthread.git
cd openhread
git checkout 8a1992e2e42fb707babe9491a6a1456e553490e8

[Sunil vignesh]

No i didn't clone this.

After clone this git. the build commands also there in file?

[Jørgen Holmefjord]

The build scripts are already present in the project directory. You just needs to clone the OpenThread repository from GitHub, then run the Python scripts as described in my link, after checking out the correct commit.

[Sunil vignesh]

Hi Jorgen,

i tested sdk v4.1.0 simple_coap_client example in ppk

why power consumption is 12mA.

is anything need to configure for low power

[Jørgen Holmefjord]

Hi,

If the example is operating as a router and not having DCDC regulator enabled, the default run current for the radio in receive/transmit mode is ~10-12 mA. Thread routers will keep their radio in receive mode at all times when idle, to be able to receive and route packets from other nodes. If you need lower current consumption, you need to configure the device as sleepy end device (see MTD CoAP Client). It will also help quite a bit to enable the DCDC regulator.

Best regards,
Jørgen

[Sunil vignesh]

Thank you Jorgen,

  I will workout on this MTD CoAP client .

[Sunil vignesh]

I worked on DCDC

int main(int argc, char *argv[])
{
    log_init();
    scheduler_init();
    timer_init();
    /* LOW POWER SETUP */
    int err_code = sd_power_mode_set(NRF_POWER_MODE_LOWPWR);
    APP_ERROR_CHECK(err_code);

    err_code = sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE);
    APP_ERROR_CHECK(err_code);

    thread_instance_init();
    thread_coap_init();
    thread_bsp_init();
   

    while (true)
    {
        thread_process();
        app_sched_execute();

        if (NRF_LOG_PROCESS() == false)
        {
            thread_sleep();
        }
    }
}

got error

Building ‘thread_mtd_coap_client_pca10056’ from solution ‘thread_mtd_coap_client_pca10056’ in configuration ‘Release’
  Compiling ‘main.c’
    implicit declaration of function 'sd_power_mode_set' [-Wimplicit-function-declaration]
    'NRF_POWER_MODE_LOWPWR' undeclared (first use in this function)
    each undeclared identifier is reported only once for each function it appears in
    implicit declaration of function 'sd_power_dcdc_mode_set' [-Wimplicit-function-declaration]
    'NRF_POWER_DCDC_ENABLE' undeclared (first use in this function); did you mean 'NRF_PWR_MGMT_ENABLED'?
Build failed

[Jørgen Holmefjord]

By default, this example does not use a softdevice.

Try writing directly to the register in start of main instead:

NRF_POWER->DCDCEN = 1;

[Sunil vignesh]

ok thank you

[Sunil vignesh]

Hi Jorgen

I tried

NRF_POWER->DCDCEN = 1;
NRF_POWER->DCDCEN0 = 1;

in FTD Thread coAP example but

power it still 11.67mA.

I understand this ticket not cover this but this is my last query .

1. How to access low power using register access

 /* LOW POWER SETUP */
    int err_code = sd_power_mode_set(NRF_POWER_MODE_LOWPWR);
    APP_ERROR_CHECK(err_code);

    err_code = sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE);
    APP_ERROR_CHECK(err_code);

2. Is there any examples or documentation that how to use or build full project using registers Like (accessing clock, RTC, TWI,SPI,UART,LED Peripherals IO)

3. I have gone through MTD CoAP example . my understand is it will work only as child . it will not be router or leader any more. and it will not do auto commissioning . if so how to commission the device to set it as child or leader or router.

4. If device is leader or router then it will consume more power?