[hpsdr] Would the real DttSP please stand up?

[Larry Gadallah]

Hi all:

I've spent some time slogging around the TAPR SVN repos and looking on
Google, and I notice the following:

1. The original Brickle/McGwier implementation seems quite dated and is
difficult to get to (you need to find out that cgran.org is actually
128.2.212.19, regardless of what DNS reverse says). Last commits on
cgran.org repo are in 2008.
2. I assume that FlexRadio uses some variant of DttSP in their software,
but I can't figure out their stance on open source and/or whether they make
the source for their version of DttSP available or not
3. This leaves the TAPR/HPSDR repository, which contains by my count, 11
copies of DttSP (see below).

This leads to the following questions:

1. Is DttSP itself architecture or OS dependent? I understood that the
original intent was that it was supposed to be "portable".
2. Do any of the variants in the TAPR/HPSDR repos contain dependencies on
architecture, OS, or other components that have been introduced?
3. Does there exist anywhere a "master" branch of DttSP that contains bug
fixes, improvements, etc. garnered from all of the variants? If not,
shouldn't one exist?

Age of DttSP implementations in HPSDR repo:

Directory
 Age        Revision
-------------------------------------------------------------------------
 ---------  ----
WA8YWQ/ghpsdr3-Windows/DttSP
1358d 23h  1670
WD5Y/PowerSDR - vs2008/HPSDR @ v1.2.2/temp/Debug/DttSP
1304d 23h  1713
WD5Y/PowerSDR - vs2008/HPSDR @ v1.2.2/Source/DttSP
1304d 23h  1713
WD5Y/PowerSDR/Source/DttSP
1704d 03h  1145
AE6VK/HPSDR Sources 03-Jan-2010/PowerSDR-PennyMerge rev 3470/Source/DttSP
 1588d 21h  1274
W5WC/PowerSDR_HPSDR_2_RX2/Source/DttSP
427d 22h   2937
W5WC/PowerSDR_HPSDR_mRX/Source/DttSP
321d 19h   3049
W5WC/PowerSDR_HPSDR_2/Source/DttSP
553d 21h   2564
KV0S/Qt-Radio-Programs/DttSP
50d 03h    3209
N6LYT/ghpsdr3/trunk/src/DttSP
 647d 00h   2421
N6LYT/Qt/trunk/src/DttSP
754d 23h   2322

Thanks,
-- 
Larry Gadallah, VE6VQ/W7                          lgadallah AT gmail DOT com
PGP Sig: B5F9 C4A8 8517 82AC 16B6  02B6 0645 69F0 1F29 A512
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