nrf52833's BLE/RF mouse in EMC certification

RE: nrf52833's BLE/RF mouse in EMC certification

wzszzxj — Thu, 19 Aug 2021 03:06:50 GMT

Hi，Simor：

At the DevZone,I read it.

RE: nrf52833's BLE/RF mouse in EMC certification

Simonr — Wed, 04 Aug 2021 06:58:48 GMT

Where have you found these functions exactly? They do not seem to be part of the SDK or DTM example. Also, what helper document are you referring to here?

For the function you're asking about: All of these are defined/explained in the nrf52833.h header file of the nRF5 SDK.

Best regards,

Simon

RE: nrf52833's BLE/RF mouse in EMC certification

wzszzxj — Tue, 03 Aug 2021 16:19:28 GMT

Hi，Simonr：

Thank you for your reply! Now what is amasing is how to find the helper document expaining for the function followed:

void radio_tx_carrier_test(unsigned char freq_ch)
{
NRF_RADIO->TASKS_TXEN = 0;
NRF_POWER->DCDCEN = 0;

NRF_RNG->TASKS_START = 1;

// Start 16 MHz crystal oscillator
NRF_CLOCK->EVENTS_HFCLKSTARTED = 0;
NRF_CLOCK->TASKS_HFCLKSTART = 1;

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

NRF_RADIO->SHORTS = 0;
NRF_RADIO->EVENTS_DISABLED = 0;
//NRF_RADIO->TEST = 0;
NRF_RADIO->TASKS_DISABLE = 1;
while (NRF_RADIO->EVENTS_DISABLED == 0)
{
// Do nothing.
}
NRF_RADIO->EVENTS_DISABLED = 0;

NRF_RADIO->SHORTS = RADIO_SHORTS_READY_START_Msk;
NRF_RADIO->TXPOWER = (4 << RADIO_TXPOWER_TXPOWER_Pos);
NRF_RADIO->MODE = (RADIO_MODE_MODE_Nrf_2Mbit << RADIO_MODE_MODE_Pos);
if(freq_ch==0) NRF_RADIO->FREQUENCY = 0;
else if(freq_ch==1) NRF_RADIO->FREQUENCY = 40;
else if(freq_ch==2) NRF_RADIO->FREQUENCY = 79;
//NRF_RADIO->TEST = (RADIO_TEST_CONSTCARRIER_Enabled << RADIO_TEST_CONSTCARRIER_Pos) \
// | (RADIO_TEST_PLLLOCK_Enabled << RADIO_TEST_PLLLOCK_Pos);

NRF_RADIO->TASKS_TXEN = 1;
NRF_POWER->DCDCEN = 1;
}

and how to explain the all the staments?

RE: nrf52833's BLE/RF mouse in EMC certification

Simonr — Tue, 03 Aug 2021 12:46:59 GMT

Please check out our SDK's Direct Test Mode application, which enables DTM test functions described in Bluetooth spec. v5.2, Vol. 6, Part F. You can also check out the application note we have on setting up production tests using DTM if that's of interest.

Best regards,

Simon