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protocol preamble removed as not required for LoRa packet processing

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This commit is contained in:
Pawel Spychalski
2017-11-09 14:56:59 +01:00
parent 47f9a37270
commit 1057c0995c
4 changed files with 8 additions and 19 deletions
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12
qsp.cpp
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@@ -154,18 +154,12 @@ void qspDecodeIncomingFrame(
static uint8_t payloadLength;
static uint8_t receivedPayload;
if (qsp->protocolState == QSP_STATE_IDLE && incomingByte == QSP_PREAMBLE)
{
//If in IDLE and correct preamble comes, start to decode frame
qsp->protocolState = QSP_STATE_PREAMBLE_RECEIVED;
qsp->crc = 0 ^ incomingByte;
qsp->frameDecodingStartedAt = millis();
}
else if (qsp->protocolState == QSP_STATE_PREAMBLE_RECEIVED)
if (qsp->protocolState == QSP_STATE_IDLE)
{
// Check if incomming channel ID is the same as receiver
if (incomingByte == CHANNEL_ID)
{
qsp->frameDecodingStartedAt = millis();
qsp->protocolState = QSP_STATE_CHANNEL_RECEIVED;
qsp->crc ^= incomingByte;
@@ -269,8 +263,6 @@ void qspEncodeFrame(QspConfiguration_t *qsp) {
//Zero CRC
qsp->crc = 0;
//Write preamble
qsp->hardwareWriteFunction(QSP_PREAMBLE, qsp);
//Write CHANNEL_ID
qsp->hardwareWriteFunction(CHANNEL_ID, qsp);