[AVaRICE-user] Re: problem writing fuses

[Amedee L. B. <deoxy@u.washington.edu>]

 >I recently upgraded the version of avarice I was using from a version
 >from March to the latest CVS (Sat 23 Aug, 2003).  Now I am unable to
 >write the fuses.  avarice spits back "Error verifying written fuses".

I had the same problem.  Turns out that programming isn't enabled while 
the jtagWriteFuses() function is called.  Adding a call to 
enableProgramming() and disableProgramming() fixes this.

in jtagrw.cc - jtagWriteFuses():

     enableProgramming();
     check(jtagWrite(FUSE_SPACE_ADDR_OFFSET + 0, 3, fuseBits),
           "Error writing fuses");

     readfuseBits = jtagRead(FUSE_SPACE_ADDR_OFFSET + 0, 3);
     disableProgramming();

Thanks everyone for your work on this program,
Louis Beaudoin
www.embedded-creations.com