nrf52832 RSSI

[yanli_1226]

hello,

    I want to use RSSI on nrf52832, and the project is uploaded.

    the question is, I test the RSSI on channel 2468MHZ，　the NRF_RADIO->RSSISAMPLE result is about -92dBm, then , I use another board send RF at 2468MHZ，then test the RSSI , but it's still about -92dBm, what's the matter?

nrf52832_RSSI.rar

[Andreas]

Hi,

 

You are issuing TASKS_RSSISTART right after EVENTS_READY, which is triggered when the radio has ramped up into RXIDLE state (RX if you have SHORTS_READY_START), but the radio will most likely not be receiving a packet at this time. You need to issue TASKS_RSSISTART when a packet is being received, e.g. at EVENTS_ADDRESS, note EVENTS_ADDRESS_RSSISTART. Otherwise you will be measuring the RSSI of background noise inbetween packets.

 

Best regards,

Andreas

[yanli_1226]

thank you, when I use another board send RF continuously, it works.