GtkWidget *init_psk() {
int i;
psk_index=0;
detector=createPSKDet(8000);
if(detector==NULL) {
fprintf(stderr,"init_psk: createPSKDet return null!\n");
return NULL;
}
SetRXFrequency(detector,1500);
ResetDetector(detector);
for(i=0;i<TEXT_LINES;i++) {
text_label[i][0]='\0';
}
build_temp_text();
psk_label=gtk_label_new(temp_text);
gtk_label_set_single_line_mode (GTK_LABEL(psk_label), FALSE);
gtk_label_set_width_chars (GTK_LABEL(psk_label), 80);
gtk_label_set_lines (GTK_LABEL(psk_label), TEXT_LINES);
gtk_label_set_line_wrap (GTK_LABEL(psk_label), TRUE);
gtk_misc_set_alignment (GTK_MISC(psk_label), 0, 0);
//gtk_widget_set_halign(psk_label,GTK_ALIGN_START);
//gtk_widget_set_valign(psk_label,GTK_ALIGN_START);
return psk_label;
}
/////////////////////////////////////////////////////////////////
// Initialize PskDet buffers and pointers
/////////////////////////////////////////////////////////////////
void CPSKDet::Init( INT Fs )
{
WORD wTemp;
INT i;
m_Fs = Fs;
// init circular delay lines.(data stays put and the pointers move)
for( WORD j=0; j<2048; j++) //init inverse varicode lookup decoder table
{
m_VaricodeDecTbl[j] = 0;
for( i=0; i<256;i++)
{
wTemp = VARICODE_TABLE[i];
wTemp >>= 4;
while( !(wTemp&1) )
wTemp >>= 1;
wTemp >>= 1;
if( wTemp == j)
m_VaricodeDecTbl[j] = (BYTE)i;
}
}
//
ResetDetector();
SetSampleClkAdj( 0 );
m_SQLevel = 50;
m_BitPhasePos = 0.0;
m_BitAcc = 0;
m_LastBitZero = FALSE;
m_SampCnt = 0;
m_OnCount = 0;
m_OffCount = 0;
// Init a bunch of "static" variables used in various member fuctions
m_AGCave = 0.0;
m_VcoPhz = 0.0;
m_PkPos = 0;
m_NewPkPos = 5;
m_BitPos = 0;
m_I1 = 0.0;
m_I0 = 0.0;
m_Q1 = 0.0;
m_Q0 = 0.0;
m_DevAve = .4;
m_z1.x = 0.0; m_z1.y = 0.0;
m_z2.x = 0.0; m_z2.y = 0.0;
m_FferrAve = 0.0;
m_FferrAve = 0.0;
m_QFreqError = 0.0;
m_LastPkPos = 0;
m_SQOpen = FALSE;
m_AFCTimer = 0;
m_AFCCaptureOn = FALSE;
m_FastAFCMode = FALSE;
m_NLPk = NLP_K;
}
void psk_set_frequency(int f) {
if(detector!=NULL) {
SetRXFrequency(detector,f);
ResetDetector(detector);
}
}
