S2LP sniff mode

[Evgeny M]

Hi,

I successfully configured the transceiver RX mode with RX always ON.
Now I'm trying to use Sniff mode. Basically I copied the example from S2LP DK.

      // Below the code relevant for sniff mode. Initial radio, packet and address
      // configuration is done the same for RX and TX

      S2LPGpioIrqDeInit(NULL);
      S2LPGpioIrqConfig(RX_DATA_READY, S_ENABLE);

       // this line is not from the example.
       // but without additional IRQs the S2LP ends up in the SLEEP_NO_FIFO
       S2LPGpioIrqConfig(RX_SNIFF_TIMEOUT, S_ENABLE);

       SRssiInit xSRssiInit = {
		.cRssiFlt = 14,
		.xRssiMode = RSSI_STATIC_MODE,
		.cRssiThreshdBm = -70, 
	};
	S2LPRadioRssiInit(&xSRssiInit);

	S2LPGpioIrqClearStatus();

	S2LPCmdStrobeFlushRxFifo();

	/* set the LDC mode wkup */
	S2LPTimerSetWakeUpTimerUs(1000*MIN_PERIOD_WAKEUP);

	/* set the rx timeout */
	S2LPTimerSetRxTimerUs(30000);

	/* use SLEEP_A mode (default) */
	S2LPTimerSleepB(S_DISABLE);

	/* enable LDC mode, FAST RX TERM and start Rx */
	S2LPTimerLdcrMode(S_ENABLE);

	/* enable the fast rx timer */
	S2LpTimerFastRxTermTimer(S_ENABLE);

	S2LPCmdStrobeRx();

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S2LP goes into WAIT_SLEEP mode and stays there indefinitely. I get no any interrupts when trying to send packets from the second board with the correct preamble and sync word.

I even tried to enable all interrupts using `S2LPGpioIrqConfig(ALL_IRQ, S_ENABLE);`
Still no interrupts are triggered in the WAIT_SLEEP mode.

It looks like it never wakes up. Do I miss something or the example is wrong? The LDCR example looks a bit different, although it should be almost the same excluding sync stuff?

Thanks in advance

[Evgeny M · Accepted solution]

ok, got it work.

It turned out that enabling interrupts other than RX_DATA_READY was a mistake