LoRa32u4 II never gets EV_TXCOMPLETE

[j4zzcat]

Hi,

I'm testing with the LoRa32u4 II board. The node joins fine to the TTN network, sends the first payload, but then never sends again, as EV_TXCOMPLETE is never called.

[j4zzcat]

Problem solved. I had to solder DIO1 to D1. For reference, DIO1 is located on the back side of the board. See screen shot.

Here’s the LMIC pin mapping:

const lmic_pinmap lmic_pins = {
    .nss = 8,
    .rxtx = LMIC_UNUSED_PIN,
    .rst = 4,
    .dio = {7, 1, 2},
};

[KonstantinMastak]

j4zzcat, I have the same problem with this exact board. I connected DIO1 and D1, my log changed a bit, but the problem is still here - server get my join request and sends join accept, but LoRa32u4 II seems to never receive it.

Here is what I get:

Starting RXMODE_RSSI 312940: engineUpdate, opmode=0x8 313046: Scheduled job 0x26f, cb 0x2323 ASAP Packet queued 313190: Running job 0x26f, cb 0x2323, deadline 0 313321: EV_JOINING 313376: engineUpdate, opmode=0xc 313465: Uplink join pending 313541: Airtime available at 604450 (previously determined) 313697: Uplink delayed until 604450 313804: Scheduled job 0x26f, cb 0x4b0 at 604325 314613: irq: dio: 0x2 flags: 0x0 314716: Cleared job 0x26f 314792: Scheduled job 0x26f, cb 0x4b0 ASAP 314910: Running job 0x26f, cb 0x4b0, deadline 0 315038: engineUpdate, opmode=0xc 315127: Uplink join pending 315202: Airtime available at 604450 (previously determined) 315359: Uplink delayed until 604450 315465: Scheduled job 0x26f, cb 0x4b0 at 604325 315879: irq: dio: 0x2 flags: 0x0 315983: Cleared job 0x26f 316059: Scheduled job 0x26f, cb 0x4b0 ASAP 316177: Running job 0x26f, cb 0x4b0, deadline 0 316305: engineUpdate, opmode=0xc 316394: Uplink join pending 316470: Airtime available at 604450 (previously determined) 316626: Uplink delayed until 604450 316733: Scheduled job 0x26f, cb 0x4b0 at 604325 317159: irq: dio: 0x2 flags: 0x0 317261: Cleared job 0x26f 317337: Scheduled job 0x26f, cb 0x4b0 ASAP 317455: Running job 0x26f, cb 0x4b0, deadline 0 317583: engineUpdate, opmode=0xc 317673: Uplink join pending 317748: Airtime available at 604450 (previously determined) 317904: Uplink delayed until 604450 318011: Scheduled job 0x26f, cb 0x4b0 at 604325 318418: irq: dio: 0x2 flags: 0x0 318521: Cleared job 0x26f 318598: Scheduled job 0x26f, cb 0x4b0 ASAP 318713: Running job 0x26f, cb 0x4b0, deadline 0

And so on, it repeats over and over again.

Did you have such a problem? Did you connect or alter the board any way other than connecting DIO1 to D1?

Thank you!

[j4zzcat]

The only change was connecting DIO1 to D1. Care to paste your source code?

[KonstantinMastak]

Thanks to fast reply!

I can paste it, but this is unchanged OTA sample from arduino-lmic with an only change to pins mapping that you provided.

An update. Finally, it joined. This happened when I closed terminal monitor in Arduino. TTN forum post tells that in v 1.2 of this board IO1 is actually TX of Serial port. So it seems there is some conflict. Did you observe such problem? Do you manage to use serial monitor and working LoRa connection at the same time?

ᐧ

2018-06-29 2:22 GMT+04:00 j4zzcat notifications@github.com:

The only change was connecting DIO1 to D1. Care to paste your source code?

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/matthijskooijman/arduino-lmic/issues/162#issuecomment-401191119, or mute the thread https://github.com/notifications/unsubscribe-auth/AYvBk42T01rrs6VtQWVxDaNBCI0X64oUks5uBVc7gaJpZM4TVX4V .

[j4zzcat]

I'm working straight off the command line, skipping the Arduino IDE altogether. For serial monitor I use picocom and that doesn't seem to interfere with the LoRa radio.

[KonstantinMastak]

Thanks! ᐧ

2018-06-29 3:35 GMT+04:00 j4zzcat notifications@github.com:

I'm working straight off the command line, skipping the Arduino IDE altogether. For serial monitor I use picocom and that doesn't seem to interfere with the LoRa radio.

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/matthijskooijman/arduino-lmic/issues/162#issuecomment-401204177, or mute the thread https://github.com/notifications/unsubscribe-auth/AYvBk2O8q4ptBrmbaHTsSiC_B_Fpw0LOks5uBWhdgaJpZM4TVX4V .