jens/GnuRadio
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

- improved sync

Browse Source 
git-svn-id: http://moon:8086/svn/software/trunk/projects/GnuRadio@403 b431acfa-c32f-4a4a-93f1-934dc6c82436
This commit is contained in:
jens
2019-01-11 11:56:24 +00:00
parent d448a922c7
commit aad7bcb355
1 changed files with 18 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
gr-jay/lib/preamble_sync_impl.cc
+18 -2
View File
@@ -106,6 +106,7 @@ int preamble_sync_impl::general_work (int noutput_items, gr_vector_int &ninput_i
switch (m_state) switch (m_state)
{ {
case PreambleSlow: case PreambleSlow:
#if 0
if ((m_word & 0xFF) == 0xCC) if ((m_word & 0xFF) == 0xCC)
{ {
m_wordSize = 8; m_wordSize = 8;
@@ -116,6 +117,20 @@ int preamble_sync_impl::general_work (int noutput_items, gr_vector_int &ninput_i
m_stateNext = SyncSlow; m_stateNext = SyncSlow;
} }
}
else
#endif
if ((m_word & 0xFF) == 0xAA)
{
m_wordSize = 8;
m_dataCount++;
if (m_dataCount == 4)
{
m_wordSize = 1;
m_dataCount = 0;
m_stateNext = SyncFast;
}
} }
else else
{ {
@@ -146,9 +161,9 @@ int preamble_sync_impl::general_work (int noutput_items, gr_vector_int &ninput_i
{ {
m_wordSize = 8; m_wordSize = 8;
m_dataCount++; m_dataCount++;
if (m_dataCount == 32) if (m_dataCount == 8)
{ {
m_wordSize = 8; m_wordSize = 1;
m_dataCount = 0; m_dataCount = 0;
m_stateNext = SyncFast; m_stateNext = SyncFast;
} }
@@ -162,6 +177,7 @@ int preamble_sync_impl::general_work (int noutput_items, gr_vector_int &ninput_i
if ((m_word & 0xFF) == fastSyncWord[m_dataCount]) if ((m_word & 0xFF) == fastSyncWord[m_dataCount])
{ {
out[j++] = m_word; out[j++] = m_word;
m_wordSize = 8;
m_dataCount++; m_dataCount++;
if (m_dataCount == 4) if (m_dataCount == 4)
{ {