The efuse section of avrdude.conf is incorrect for all four AT90PWM
parts. Each part should have eight efuse bits. Even the function of
efuse bit 0x40 is undocumented, it can be set and cleared reliably.

Thanks,
Shaun

+++ /etc/avrdude.conf   2007-11-15 11:56:29.000000000 -0700
@@ -8372,7 +8372,7 @@
      memory "efuse"
          size            = 1;
          write           = "1 0 1 0  1 1 0 0  1 0 1 0  0 1 0 0",
-                           "x x x x  x x x x  x x x x  x x x i";
+                           "x x x x  x x x x  i i i i  i i i i";

          read            = "0 1 0 1  0 0 0 0  0 0 0 0  1 0 0 0",
                            "x x x x  x x x x  o o o o  o o o o";
@@ -8556,7 +8556,7 @@
      memory "efuse"
          size            = 1;
          write           = "1 0 1 0  1 1 0 0  1 0 1 0  0 1 0 0",
-                           "x x x x  x x x x  x x x x  x x x i";
+                           "x x x x  x x x x  i i i i  i i i i";

          read            = "0 1 0 1  0 0 0 0  0 0 0 0  1 0 0 0",
                            "x x x x  x x x x  o o o o  o o o o";
@@ -8738,7 +8738,7 @@
      memory "efuse"
          size            = 1;
          write           = "1 0 1 0  1 1 0 0  1 0 1 0  0 1 0 0",
-                           "x x x x  x x x x  x x x x  x x x i";
+                           "x x x x  x x x x  i i i i  i i i i";

          read            = "0 1 0 1  0 0 0 0  0 0 0 0  1 0 0 0",
                            "x x x x  x x x x  o o o o  o o o o";
@@ -8921,7 +8921,7 @@
      memory "efuse"
          size            = 1;
          write           = "1 0 1 0  1 1 0 0  1 0 1 0  0 1 0 0",
-                           "x x x x  x x x x  x x x x  x x x i";
+                           "x x x x  x x x x  i i i i  i i i i";

          read            = "0 1 0 1  0 0 0 0  0 0 0 0  1 0 0 0",
                            "x x x x  x x x x  o o o o  o o o o";


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