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Joel Sherrill wrote: > > Hi, > > I am looking for information on downloading compressed images > of executables to target hardware. What I have in mind is > a program resident on the target which allows maintenance > personnel to downloaded via RS-232 a new program image. The two > things I am looking for are: > > + compression/decompression software > + serial protocol ([XYZ]modem]) > > To minimize download time (executable is ~ 1 Mbyte), I would > like to compress the image on the host, download it via > some reliable serial protocol, decompress it on the target, > and then burn it into flash. > > I know this has been done before and was looking for suggestions > on freely available software to help with the > compression/decompression and serial protocol parts. > > Thanks in advance. > > --joel > Joel Sherrill Director of Research & Development > joel@OARcorp.com On-Line Applications Research > Ask me about RTEMS: a free RTOS Huntsville AL 35805 > Support Available (205) 722-9985 You might wish to look at: http://www.infosys.tuwien.ac.at/Staff/lux/marco/lzo.html Does not use memory to decompress, so looks a good match for embedded systems. -- Chris Johns Networks, Plessey Asia Pacfic Pty. Ltd. mailto:ccj@acm.org mailto:cjohns@plessey.com.au