1. Center frequency send by Linrad is now used to set frequency scale in

SpecJT and frequency labels on lines of decoded text.  (Needs checking!)
2. Corrected logic for Rx buffer assignment on program startup, and
   for when a transmission is started late.  (Needs checking!)
3. Diagnostic display of kbuf, kk, and kxp/96000 in status-bar msg7.


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/map65@943 ab8295b8-cf94-4d9e-aec4-7959e3be5d79

filbig.f

@@ -94,7 +94,7 @@ C      i0 is the bin number in ca and cb closest to f0.
       enddo
       do i=nh+1,NFFT2
          j=i0+i-1-NFFT2
-         if(j.lt.1) j=j+NFFT1
+         if(j.lt.1) j=j+NFFT1                  !NFFT1 was NFFT2
          c4a(i)=rfilt(i)*ca(j)
          c4b(i)=rfilt(i)*cb(j)
       enddo

gcom2.f90

@@ -1,5 +1,6 @@
 ! Variable             Purpose                              Set in Thread
 !-------------------------------------------------------------------------
+real*8 fcenter         !Linrad center freq, from pkt header   recvpkt
 real ps0               !Spectrum of best ping, FSK441/JT6m      Decoder
 real psavg             !Average spectrum                        Decoder
 real s2                !2d spectrum for horizontal waterfall    GUI
@@ -7,7 +8,6 @@ real ccf               !CCF in time (blue curve)                Decoder
 real green             !Data for green line                     GUI
 real fselect           !Specified QSO frequency                 GUI
 real pctlost           !Percent of lost packets                 Decoder
-real fcenter           !Linrad center freq, from pkt header   recvpkt
 real rxnoise           !Rx noise in dB                        recvpkt
 real dphi              !Phase shift between pol'n channels   GUI,Decoder
 integer ngreen         !Length of green                         GUI
@@ -104,8 +104,8 @@ character*80 filetokillb
 character*12 pttport
 character*8 utcdata     !HHMM UTC for the processed data       Decoder
 
-common/gcom2/ps0(431),psavg(450),s2(64,3100),ccf(-5:540),                   &
+common/gcom2/fcenter,ps0(431),psavg(450),s2(64,3100),ccf(-5:540),           &
-     green(500),fselect,pctlost,fcenter,rxnoise,dphi,ngreen,dgain,iter,     &
+     green(500),fselect,pctlost,rxnoise,dphi,ngreen,dgain,iter,             &
      ndecoding,ndecoding0,mousebutton,multicast,                            &
      ndecdone,npingtime,ierr,lauto,mantx,nrestart,ntr,nmsg,nsave,nadd5,     &
      dftolerance,LDecoded,rxdone,monitoring,nzap,minsigdb,                  &

map65.py

@@ -979,6 +979,8 @@ def update():
         msg4.configure(text=t)
         t="Drop: %.2f %%" % Audio.gcom2.pctlost
         msg5.configure(text=t)
+        t="%d  %d   %d" % (Audio.datcom.kbuf,Audio.datcom.kk,Audio.datcom.kxp/96000)
+        msg7.configure(text=t)
         root_geom=root.geometry()
         try:
             bm_geom=bm.geometry()
@@ -1125,7 +1127,7 @@ def update():
     else:
         bgcolor='green'
         t='Receiving'
-    msg7.configure(text=t,bg=bgcolor)
+    msg8.configure(text=t,bg=bgcolor)
 
     if Audio.gcom2.ndecdone>0 or g.cmap != cmap0:
         if Audio.gcom2.ndecdone==1:
@@ -1714,8 +1716,10 @@ msg5=Message(iframe6, text="", width=300,relief=SUNKEN)
 msg5.pack(side=LEFT, fill=X, padx=1)
 msg6=Message(iframe6, text="", width=300,relief=SUNKEN)
 msg6.pack(side=LEFT, fill=X, padx=1)
-msg7=Message(iframe6, text='                        ', width=300,relief=SUNKEN)
+msg7=Message(iframe6, text="", width=300,relief=SUNKEN)
-msg7.pack(side=RIGHT, fill=X, padx=1)
+msg7.pack(side=LEFT, fill=X, padx=1)
+msg8=Message(iframe6, text='                        ', width=300,relief=SUNKEN)
+msg8.pack(side=RIGHT, fill=X, padx=1)
 iframe6.pack(expand=1, fill=X, padx=4)
 frame.pack()
 ldate.after(100,update)

map65a.F90

@@ -23,6 +23,7 @@ subroutine map65a(newdat)
   data nfile/0/,nutc0/-999/,nid/0/,ip000/1/,ip001/1/,mousefqso0/-999/
   save
 
+  nfoffset=nint(1000*(fcenter-144.125d0))
   if(mousefqso.ne.mousefqso0 .and. nagain.eq.1) newspec=2
   mousefqso0=mousefqso
 
@@ -253,7 +254,7 @@ subroutine map65a(newdat)
                  stop 'Error in message format'
 8                if(i.le.18) decoded(i+2:i+4)='OOO'
               endif
-              nkHz=nint(freq-foffset)
+              nkHz=nint(freq-foffset) + nfoffset
               f0=144.0+0.001*nkHz
               ndf=nint(1000.0*(freq-foffset-nkHz))
 
@@ -280,7 +281,8 @@ subroutine map65a(newdat)
            endif
         enddo
         if(nwrite.eq.0) then
-           write(11,1012) mousefqso,nutc
+           nfqso=mousefqso + nfoffset
+           write(11,1012) nfqso,nutc
 1012          format(i3,9x,i5.4)
         endif
    
@@ -349,7 +351,7 @@ subroutine map65a(newdat)
               stop 'Error in message format'
 10            if(i.le.18) decoded(i+2:i+4)='OOO'
            endif
-           nkHz=nint(freq-foffset)
+           nkHz=nint(freq-foffset) + nfoffset
            f0=144.0+0.001*nkHz
            ndf=nint(1000.0*(freq-foffset-nkHz))
            ndf0=nint(a(1))

recvpkt.F90

@@ -1,12 +1,7 @@
-!----------------------------------------------------- recvpkt
 subroutine recvpkt(iarg)
 
-! Receive timf2 packets from Linrad, stuff data into id().
+! Receive timf2 packets from Linrad and stuff data into array id().
-! This routine runs in a background thread and will never return.
+! (This routine runs in a background thread and will never return.)
-
-!#ifdef CVF
-!  use dflib
-!#endif
 
   parameter (NSZ=2*60*96000)
   real*8 d8(NSZ)
@@ -20,7 +15,7 @@ subroutine recvpkt(iarg)
   include 'gcom1.f90'
   include 'gcom2.f90'
   equivalence (id,d8)
-  data nblock0/0/,first/.true./,kb/1/,ntx/0/,npkt/0/,nw/0/
+  data nblock0/0/,first/.true./,kb/1/,npkt/0/,nw/0/
   data sqave/0.0/,u/0.001/,rxnoise/0.0/,kbuf/1/,lost_tot/0/
   data multicast0/-99/
   save
@@ -29,39 +24,59 @@ subroutine recvpkt(iarg)
   nreset=-1
   k=0
   nsec0=-999
-  fcenter=144.125               !Default (startup) frequency)
+  fcenter=144.125                   !Default (startup) frequency)
   multicast0=multicast
 
 10 if(multicast.ne.multicast0) go to 1
 
   call recv_pkt(center_freq)
-  if(nsec0.eq.-999) fcenter=center_freq
+  fcenter=center_freq
+
+! Wait for an even minute to start accepting Rx data.
+  if(nsec0.eq.-999) then
+     if(mod(msec/1000,60).ne.0) go to 10
+     nsec0=-998
+  endif
+
   isec=sec_midn()
   imin=isec/60
   if((monitoring.eq.0) .or. (lauto.eq.1 .and. mod(imin,2).eq.(1-TxFirst))) then
      first=.true.
+
+! If we're transmitting and were previously receiving in this minute,
+! switch buffers to prepare for the next Rx minute.
+     if(lauto.eq.1 .and. mod(imin,2).eq.(1-TxFirst) .and. reset.eq.1) then
+        nreset=0
+        kb=3-kb
+        k=0
+        if(kb.eq.2) k=NSMAX
+        lost_tot=0
+        ndone1=0
+        ndone2=0
+     endif
      go to 10
   endif
 
+! If we get here, we're in Rx mode
   lost=nblock-nblock0-1
   if(lost.ne.0 .and. .not.first) then
      nb=nblock
      if(nb.lt.0) nb=nb+65536
      nb0=nblock0
      if(nb0.lt.0) nb0=nb0+65536
-!     if(ndebug.gt.0) print*,'Lost packets:',nb0,nb,lost
      lost_tot=lost_tot + lost               ! Insert zeros for the lost data.
      do i=1,174*lost
         k=k+1
         d8(k)=0
      enddo
   endif
-   nblock0=nblock
+  nblock0=nblock
 
   nsec=msec/1000
   if(mod(nsec,60).eq.1) nreset=1
+
+! If this is the start of a new minute, switch buffers
   if(mod(nsec,60).eq.0 .and. nreset.eq.1) then
-! This is the start of a new minute, switch buffers
      nreset=0
      kb=3-kb
      k=0
@@ -91,7 +106,12 @@ subroutine recvpkt(iarg)
   rxnoise=10.0*log10(sqave) - 48.0
   kxp=k
 
-!  This may be a bad idea, because of non-reentrant Fortran I/O?
+  if(k.lt.1 .or. k.gt.NSZ) then
+     print*,'Error in recvpkt: ',k,NSZ,NSMAX
+     stop
+  endif
+
+! The following may be a bad idea because it uses non-reentrant Fortran I/O ???
   if(mode.eq.'Measur') then
      npkt=npkt+1
      if(npkt.ge.551) then
@@ -109,37 +129,27 @@ subroutine recvpkt(iarg)
      nw=0
   endif
 
-  if(k.lt.1 .or. k.gt.NSZ) then
-     print*,'Error in recvpkt: ',k,NSZ,NSMAX
-     stop
-  endif
-
 20 if(nsec.ne.nsec0) then
      mutch=nsec/3600
      mutcm=mod(nsec/60,60)
      mutc=100*mutch + mutcm
      ns=mod(nsec,60)
      nsec0=nsec
-     ntx=ntx+transmitting
 
+! See if it's time to start FFTs
      if(ns.ge.nt1 .and. ndone1.eq.0) then
-!  Time in this minute has reached designated time to start FFTs
         nutc=mutc
         fcenter=center_freq
         kbuf=kb
         kk=k
         ndiskdat=0
         ndone1=1
-!        if(ndebug.eq.2) write(29,3001) nutc,mod(int(sec_midn()),60),  &
-!             kbuf,kk,kkdone
-!3001    format('r1:',i5.4,i3.2,i5,2i10)
      endif
+
+! See if it's time to start second stage of processing
      if(ns.ge.nt2 .and. ndone2.eq.0) then
         kk=k
         ndone2=1
-!        if(ndebug.eq.2) write(29,3002) nutc,mod(int(sec_midn()),60),  &
-!             kbuf,kk,kkdone
-!3002    format('r2:',i5.4,i3.2,i5,2i10)
         nlost=lost_tot                         ! Save stats for printout
      endif
   endif

specjt.py

@@ -42,6 +42,7 @@ g.cmap="Linrad"
 g.cmap0="Linrad"
 bw=96.0
 df=2.69165
+fcenter0=0.
 fmid=1500
 fmid0=1500
 frange=2000
@@ -191,19 +192,21 @@ def draw_axis():
         xmid=125.0 - 2.3                        #Empirical    
     x1=int(xmid-0.6*bw)                         #Make it too wide, to be
     x2=int(xmid+0.6*bw)                         #sure to get all the numbers
+    ixadd=(int(1000.0*Audio.gcom2.fcenter) % 1000) - 125
     ilab=10
     if bw <= 60.0: ilab=5
     if bw <= 30.0: ilab=2
     for ix in range(x1,x2,1):
         i=0.5*NX + (ix-xmid)/xdf
         j=20
-        if (ix%5)==0: j=16
+        k=int(ix+ixadd+10000.5)%1000
-        if (ix%ilab)==0 :
+        if (k%5)==0: j=16
+        if (k%ilab)==0 :
             j=16
             x=i-1
-            if ix<100: x=x+1
+            if k<100: x=x+1
             y=8
-            c.create_text(x,y,text=str(ix))
+            c.create_text(x,y,text=str(k))
         c.create_line(i,25,i,j,fill='black')     #Draw the upper scale
             
     c2.delete(ALL)
@@ -258,7 +261,7 @@ def update():
     global a,a2,b0,c0,g0,im,im2,isec0,line0,line02,newMinute,\
            nscroll,pim,pim2,nfa0,nfb0,bw, \
            root_geom,t0,mousedf0,mousefqso0,nfreeze0,tol0,mode0,nmark0, \
-           fmid,fmid0,frange,frange0,dftolerance0
+           fmid,fmid0,frange,frange0,dftolerance0,fcenter0
     
     utc=time.gmtime(time.time()+0.1*Audio.gcom1.ndsec)
     isec=utc[5]
@@ -371,6 +374,10 @@ def update():
 #    if newspec: Audio.gcom2.ndiskdat=0
     Audio.gcom2.nlines=0
     Audio.gcom2.nflat=nflat.get()
+
+    if Audio.gcom2.fcenter!=fcenter0:
+        draw_axis()
+        fcenter0=float(Audio.gcom2.fcenter)
     frange=nfr.get()*2000
     if(fmid<>fmid0 or frange<>frange0):
         if fmid<1000*nfr.get(): fmid=1000*nfr.get()