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[LoRaWAN] Fix ADR backoff

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This commit is contained in:
StevenCellist 2024-09-16 08:36:14 +02:00
parent 97579292de
commit e9ed961c97
1 changed files with 7 additions and 2 deletions
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9
src/protocols/LoRaWAN/LoRaWAN.cpp
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@ -1099,7 +1099,12 @@ void LoRaWANNode::adrBackoff() {
uint32_t adrLimit = 0x01 << this->adrLimitExp; uint32_t adrLimit = 0x01 << this->adrLimitExp;
uint32_t adrDelay = 0x01 << this->adrDelayExp; uint32_t adrDelay = 0x01 << this->adrDelayExp;
// don't need to do any backoff for first Limit+Delay uplinks // check if we already tried everything (adrFCnt == FCNT_NONE)
if(this->adrFCnt == RADIOLIB_LORAWAN_FCNT_NONE) {
return;
}
// no need to do any backoff for first Limit+Delay uplinks
if((this->fCntUp - this->adrFCnt) < (adrLimit + adrDelay)) { if((this->fCntUp - this->adrFCnt) < (adrLimit + adrDelay)) {
return; return;
} }
@ -1121,7 +1126,7 @@ void LoRaWANNode::adrBackoff() {
} }
// try to decrease the datarate // try to decrease the datarate
if(this->channels[RADIOLIB_LORAWAN_UPLINK].dr > this->channels[RADIOLIB_LORAWAN_UPLINK].drMin) { if(this->channels[RADIOLIB_LORAWAN_UPLINK].dr > 0) {
if(this->setDatarate(this->channels[RADIOLIB_LORAWAN_UPLINK].dr - 1) == RADIOLIB_ERR_NONE) { if(this->setDatarate(this->channels[RADIOLIB_LORAWAN_UPLINK].dr - 1) == RADIOLIB_ERR_NONE) {
return; return;
} }