how to set up NRF52810 constant carrier

RE: how to set up NRF52810 constant carrier

antony.sun — Sat, 29 Aug 2020 02:56:27 GMT

thank you very much!

now it works well.

RE: how to set up NRF52810 constant carrier

Andreas — Fri, 28 Aug 2020 12:30:05 GMT

Hi,

Try this hex: devzone.nordicsemi.com/.../unmod_5F00_2402.hex

It runs

int main(void)
{
    NRF_CLOCK->TASKS_HFCLKSTART=1;

    while (NRF_CLOCK->EVENTS_HFCLKSTARTED == 0)
    {
        // Do nothing.
    }

    NRF_RADIO->TASKS_TXEN=1;

    while (true)
    {
        __WFE();
    }
}

I just verified it on a nRF52810 on my side, check 2402 MHz.

There is not any differences in configuration between nRF52810 compared to other nRF52 devices, but you need to build a compatible project (e.g. PCA10040e projects in nRF5 SDK).

Best regards,

Andreas

RE: how to set up NRF52810 constant carrier

antony.sun — Fri, 28 Aug 2020 07:55:26 GMT

thanks a lot.

I use the same code to try.

but the device still do not send the carrier.

is the 52810 different from others config?

RE: how to set up NRF52810 constant carrier

Andreas — Tue, 25 Aug 2020 07:52:43 GMT

Hi,

Start HFXO:
```
NRF_CLOCK->TASKS_HFCLKSTART = 1;
```

Wait for HFXO to start:

// Wait for the external oscillator to start up.
while (NRF_CLOCK->EVENTS_HFCLKSTARTED == 0)
{
    // Do nothing.
}

(Optional) Set frequency:
```
NRF_RADIO->FREQUENCY = x;
```
(Optional) Set output power:
```
NRF_RADIO->TXPOWER = y;
```
Start the radio:
```
NRF_RADIO->TASKS_TXEN = 1;
```

You can also use the radio test example in our nRF5 SDK.

Best regards,

Andreas