g4klx/MMDVM
1
0
Fork 0
mirror of https://github.com/g4klx/MMDVM.git synced 2026-04-05 14:37:02 +00:00
Code Issues Projects Releases Packages Wiki Activity

Roll back the changes for sync less data frames.

Browse source
This commit is contained in:
Jonathan Naylor 2016-02-25 17:19:19 +00:00
parent aadb7a7601
commit 19c52a6fdf
2 changed files with 6 additions and 34 deletions
Download patch file Download diff file Expand all files Collapse all files

33
DMRSlotRX.cpp
View file

@ -49,8 +49,7 @@ m_threshold(0),
m_control(0x00U),
m_syncCount(0U),
m_colorCode(0U),
m_n(0U),
m_state(DMRSRXS_NONE)
m_n(0U)
{
}
@ -73,14 +72,13 @@ void CDMRSlotRX::reset()
m_threshold = 0;
m_centre = 0;
m_endPtr = NOENDPTR;
m_state = DMRSRXS_NONE;
}
bool CDMRSlotRX::processSample(q15_t sample)
{
// Ensure that the buffer doesn't overflow
if (m_dataPtr > m_endPtr || m_dataPtr >= 900U)
return m_state != DMRSRXS_NONE;
return m_endPtr != NOENDPTR;
m_buffer[m_dataPtr] = sample;
@ -121,24 +119,20 @@ bool CDMRSlotRX::processSample(q15_t sample)
switch (dataType) {
case DT_DATA_HEADER:
m_state = DMRSRXS_DATA;
DEBUG3("DMRSlotRX: data header for slot/data type", m_slot ? 2U : 1U, dataType);
serial.writeDMRData(m_slot, frame, DMR_FRAME_LENGTH_BYTES + 1U);
break;
case DT_VOICE_LC_HEADER:
m_state = DMRSRXS_VOICE;
DEBUG3("DMRSlotRX: voice header for slot/data type", m_slot ? 2U : 1U, dataType);
serial.writeDMRData(m_slot, frame, DMR_FRAME_LENGTH_BYTES + 1U);
break;
case DT_VOICE_PI_HEADER:
m_state = DMRSRXS_VOICE;
DEBUG3("DMRSlotRX: pi header for slot/data type", m_slot ? 2U : 1U, dataType);
serial.writeDMRData(m_slot, frame, DMR_FRAME_LENGTH_BYTES + 1U);
break;
case DT_TERMINATOR_WITH_LC:
DEBUG2("DMRSlotRX: terminator for slot", m_slot ? 2U : 1U);
m_endPtr = NOENDPTR;
m_state = DMRSRXS_NONE;
serial.writeDMRData(m_slot, frame, DMR_FRAME_LENGTH_BYTES + 1U);
break;
default:
@ -151,7 +145,6 @@ bool CDMRSlotRX::processSample(q15_t sample)
// Voice sync
DEBUG2("DMRSlotRX: voice sync for slot", m_slot ? 2U : 1U);
serial.writeDMRData(m_slot, frame, DMR_FRAME_LENGTH_BYTES + 1U);
m_state = DMRSRXS_VOICE;
m_syncCount = 0U;
m_n = 0U;
} else {
@ -163,26 +156,12 @@ bool CDMRSlotRX::processSample(q15_t sample)
m_threshold = 0;
m_centre = 0;
m_endPtr = NOENDPTR;
m_state = DMRSRXS_NONE;
return false;
}
if (m_state == DMRSRXS_VOICE) {
// Voice data
frame[0U] |= ++m_n;
serial.writeDMRData(m_slot, frame, DMR_FRAME_LENGTH_BYTES + 1U);
} else if (m_state == DMRSRXS_DATA) {
// Data data
uint8_t colorCode;
uint8_t dataType;
CDMRSlotType slotType;
slotType.decode(frame + 1U, colorCode, dataType);
if (colorCode == m_colorCode) {
frame[0U] |= dataType;
serial.writeDMRData(m_slot, frame, DMR_FRAME_LENGTH_BYTES + 1U);
}
}
// Voice data
frame[0U] |= ++m_n;
serial.writeDMRData(m_slot, frame, DMR_FRAME_LENGTH_BYTES + 1U);
}
}
@ -192,7 +171,7 @@ bool CDMRSlotRX::processSample(q15_t sample)
if (m_bitPtr >= DMR_RADIO_SYMBOL_LENGTH)
m_bitPtr = 0U;
return m_state != DMRSRXS_NONE;
return m_endPtr != NOENDPTR;
}
void CDMRSlotRX::correlateSync(q15_t sample)