64 lines
1.7 KiB
Fortran
64 lines
1.7 KiB
Fortran
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subroutine genwsprdpsk(msg,msgsent,imsgde)
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! Encode a WSPRDPSK message, producing array txwave().
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!
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use crc
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include 'wsprdpsk_params.f90'
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character*22 msg,msgsent
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character*64 cbits
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character*32 sbits
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integer iuniqueword0
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integer*1,target :: idat(9)
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integer*1 msgbits(68),codeword(ND)
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logical first
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integer ipreamble(16) !Freq estimation preamble
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integer isync(32) !Long sync vector
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integer imsg(NN),imsgde(NN)
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data ipreamble/1,1,1,1,0,0,0,0,0,0,0,0,1,1,1,1/
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data first/.true./
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data iuniqueword0/z'30C9E8AD'/
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save first,isync,ipreamble
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if(first) then
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write(sbits,'(b32.32)') iuniqueword0
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read(sbits,'(32i1)') isync(1:32)
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first=.false.
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endif
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idat=0
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call wqencode(msg,ntype0,idat) !Source encoding
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id7=idat(7)
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if(id7.lt.0) id7=id7+256
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id7=id7/64
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write(*,*) 'idat ',idat
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icrc=crc14(c_loc(idat),9)
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write(*,*) 'icrc: ',icrc
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write(*,'(a6,b16.16)') 'icrc: ',icrc
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call wqdecode(idat,msgsent,itype)
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print*,msgsent,itype
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write(cbits,1004) idat(1:6),id7,iand(icrc,z'3FFF')
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1004 format(6b8.8,b2.2,b14.14)
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msgbits=0
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read(cbits,1006) msgbits(1:64)
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1006 format(64i1)
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write(*,'(50i1,1x,14i1,1x,4i1)') msgbits
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call encode204(msgbits,codeword) !Encode the test message
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imsg(1)=1 !reference bit
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imsg(2:101)=codeword(1:100)
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imsg(102:132)=isync(1:31) !only use 31 of the sync bits
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imsg(133:232)=codeword(101:200)
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write(*,'(232i1)') imsg(1:232)
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imsgde(1)=1
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do i=2,232
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imsgde(i)=mod(imsgde(i-1)+imsg(i),2)
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enddo
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write(*,*) '-------------'
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write(*,'(232i1)') imsgde(1:232)
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return
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end subroutine genwsprdpsk
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