Ham Radio Software for the (20-year-old) Motorola DSP56002 EVM Card

Note: The word "new" on this page really means "new in 2000"...

All of the links on this page to Motorola's Web sites are broken. Motorola isn't even in the DSP business anymore, having spun it off as Freescale Semiconductor, which then got acquired by NXP.
Metrowerks, the supplier of the EVM software developement tools, no longer exists. Here is some more info about that: What Happened To Metrowerks.com?

Fortunately I have copies here of the most important Motorola documentation and software.

Here are some slightly more recent links, courtesy of Mike, AB9AZ. Probably most of them are broken by now:

• The Freescale website has 56002 documentation archived at: http://www.freescale.com/webapp/sps/site/homepage.jsp?nodeId=01z3Tw Use the menus at the left to select the DSP archives.
• DSP assembler tools and EVM documentation are free for download from Metrowerks: http://www.metrowerks.com/MW/Develop/Embedded/suite56.htm
• DSP debugger tools were maintained by Domain Technologies and might still be available free for download: http://www.domaintec.com/Software.html#Dbg56kInst




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People often ask me for information on how to write EVM software, or how to get the thing to work in the first place.  It is hard to learn everything you need to know, since the software/hardware system is sort of a mish-mash of pieces created by various people over several years.  Here are some good sources for information:
• The EVM pages on the TAPR Web site.  Be sure to read KC7WW's QEX article from 1995.  Also note the links to the Alef Null documentation and software.  This is the best description of the Leonid and BIOS/BIOS2 architecture.
• The Red Books (which document the 56002 CPU)  on Motorola's web site (in .pdf format). You want this and this.
And here is where to get the software development tools:
• There is an updated release of the assembler, debugger, etc. at: ftp://www.motorola.com/pub/SPS/DSP/helpline/evm/evm28.exe
• For the brave, there is a huge (50MB) package that has an even newer version of the assembler, along with a huge C compiler and linker system here. This also has versions of the tools for Unix.
• Somewhere, there is a Windows version of the debugger program.  But I prefer to use the DOS version (in the above evm28.exe file), since it loads stuff faster.

Here is some software I have written, ported, etc..  The Windows programs are written in Microsoft Visual C++ 5.0 for Windows 95 (and NT, if you are lucky), and I have included the source code for most of them.  The software for the EVM is a mix of Win95 stuff, DOS C code, and 56002 assembler code.

• p3d.asm: A working version (Rev 1.4) of my P3D launch telemetry decoder program. This is a somewhat modified version of the G3RUH modem for the EVM. This version (rev 1.4) has been successfully tested with real data. As initially configured, it transmits a continuous repeating test message. (It does not activate the PTT signal, so this will not affect actual operation.) Here is some test data in the form of a .wav file.  You can play it into your EVM to test the decoder.  Thanks to Lyle Johnson (WA7GXD) for generating this data. At http://www.uk.amsat.org/p3d_9k6.htm you will find more info about the P3D launch telemetry. Update:  P3D was successfully launched, but the 70cm transmitter does not seem to be working, so this program may never be useful...  :-(
• New! Evmco131.zip: The latest versions of a bunch of EVM programs (.asm source). Includes the latest 57600 baud versions of bios2.asm and leonid.asm. To use these, you will also need the latest DL program, below. You will probably also want the latest PMP and Spy programs, too. This version 1.31 has a fix for 80 MHz operation.
• New! DL: The latest DOS version of the downloader program for the EVM, with 57600 baud support. Includes source code.
• New! PMP: The latest version of the PMP KISS-mode packet program for DOS, with 57600 baud support.
• New! PMP Source Code: The source code of the latest KISS version of PMP. Also includes the original non-KISS PMP program and source code by N8KEI.
• New! SPY: The latest DOS version of the handy SPY data-viewer program for the EVM, with 57600 baud support. Includes source code.
• DL32: A Win32 version of the downloader program for the EVM.
• DL32 source: Source code (for MS VC++ 5.0) for the above program. (Also has all code needed for the DOS and Linux versions.)
• New! filco.zip: This is a small Windows program to control the "rtcoeff.asm" audio filter program for the EVM (which is included in evmco13.zip above).  I recently fixed it to work at 57600 baud, like the rest of the EVM software.  Includes MS VC++ source code.
• Rather Old! evm_new.zip: A collection of earlier versions of many EVM programs. These are the latest pre-57600-baud versions. Grab these if you really do not want the 57600-baud capability.
• Obsolete! N1OWU_11.ZIP: A big collection of EVM stuff I have put together. Note that this collection dates from 1997 or so. Above are newer, better versions of almost all of the stuff in this.
• EvmHell: A program for doing Feldhell telegraphy with the EVM.  Includes Microsoft Visual C++ source code.
• dgps.asm: A EVM modem for Coast Guard Differential GPS transmissions.