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[SX127x] Added option to keep received data despite CRC error (#610)

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This commit is contained in:
jgromes 2022-11-16 19:21:55 +01:00
parent f68bef2877
commit feb9aaa227
1 changed files with 9 additions and 11 deletions
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20
src/modules/SX127x/SX127x.cpp
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@ -621,20 +621,18 @@ int16_t SX127x::readData(uint8_t* data, size_t len) {
length = len;
}
// check payload CRC
int16_t state = RADIOLIB_ERR_NONE;
if(_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_IRQ_FLAGS, 5, 5) == RADIOLIB_SX127X_CLEAR_IRQ_FLAG_PAYLOAD_CRC_ERROR) {
state = RADIOLIB_ERR_CRC_MISMATCH;
}
if(modem == RADIOLIB_SX127X_LORA) {
// check packet header integrity
if(_crcEnabled && (_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_HOP_CHANNEL, 6, 6)) == 0) {
if(_crcEnabled && (state == RADIOLIB_ERR_NONE) && (_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_HOP_CHANNEL, 6, 6) == 0)) {
// CRC is disabled according to packet header and enabled according to user
// most likely damaged packet header
clearIRQFlags();
return(RADIOLIB_ERR_LORA_HEADER_DAMAGED);
}
// check payload CRC
if(_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_IRQ_FLAGS, 5, 5) == RADIOLIB_SX127X_CLEAR_IRQ_FLAG_PAYLOAD_CRC_ERROR) {
// clear interrupt flags
clearIRQFlags();
return(RADIOLIB_ERR_CRC_MISMATCH);
state = RADIOLIB_ERR_LORA_HEADER_DAMAGED;
}
} else if(modem == RADIOLIB_SX127X_FSK_OOK) {
@ -659,7 +657,7 @@ int16_t SX127x::readData(uint8_t* data, size_t len) {
// clear interrupt flags
clearIRQFlags();
return(RADIOLIB_ERR_NONE);
return(state);
}
int16_t SX127x::startChannelScan() {