RX mode issues

[janek83]

Hi,

I',m having problem with RX mode. I am using a little modified example of receiver:

...

msprf24_activate_rx();
LPM4;

while (1) {
    if (rf_irq & RF24_IRQ_FLAGGED) {
        msprf24_get_irq_reason();
    }
    if (rf_irq & RF24_IRQ_RX || msprf24_rx_pending()) {
        r_rx_payload(32, buf);
        msprf24_irq_clear(RF24_IRQ_RX);
        P1OUT ^= BIT0; // toggle red LED
    }
    msprf24_activate_rx(); // works once without it
    LPM4;
}

But it stops receiving after first packet received (red LED stays lit forever after receiving), so after a while I've added msprf24_activate_rx() on end of loop, right before LPM4 call. Now it works but for random amount of time, ie: 1 to 20 of times, then hangs again. Transmitter sends the same date every 2 seconds.

Received data corresponds to what was send

I'm running on 8MHz with 8MHz SMCLK, dynamic payload, rf_addr_width(3), msprf24_set_retransmit_delay(1000) - in traansmitter code msprf24_set_retransmit_count(3) - in traansmitter code

Wires length (Launchpad <-> nrf24l01+) about 20cm.

What might be wrong? Why adding msprf24_activate_rx() is necessary on every wake up but not present in your examples? Your example of receiver also stops after first packet.

[spirilis]

You should never have to re-enter msprf24_activate_rx() if you never exit it. My examples don't include that because they work. I am quite puzzled here though. Is something happening to your CE line? Wonder if it's a genuine silicon bug or bad chip.

[janek83]

I've found out what was wrong studying your example of TX node :)

It was my fault on transmitter side. I've enabled AUTO ACKs but set pipe 0 address to different address than TX address - that was the reason and source of all weirdness.

Now everythings work like it should, sorry to bother you spirilis, you've made a great lib :)

[spirilis]

Sweet, good luck!

[Rogil]

Hello Spirilis, I'm trying with ACK PAYLOAD, practicly without variations from Ike's programs, I activate it whit "msprf24_enable_feature(RF24_EN_ACK_PAY); // ACK Payload" and in the PRX I use "w_ack_payload", pipe 0, same address for PTX and PRX for payload and ack payload, th PRX seems to work, when I see the IRQ for Tx and Rx, are set, but the PTX, always is in IRQ_ERROR.

Please give me any idea, I don't know what I'm doing wrong.

Thanks, ANDRÉS FELIPE RODRÍGUEZ

[spirilis]

Hmm, tbh I never tested that feature. Won't be of much help here.

[Rogil]

Hello, I've been keeping on with this ack payload issue, and works without changing anything in your code , I started debbug on my launchpad, and I stopped it for no reason and suddenly works, I mean the bits 6 and 5 were set in PTX in the rf_irq register, but when I started over, the error bit 4 was set again, could this give some idea, anything you could tell me would be fine. Thanks

[Rogil]

Ok, Eric Ack_paylaod working sweet.