On Jul 16, 2016 3:34 PM, "Paul "LeoNerd" Evans" <leon...@leonerd.org.uk> wrote:
> > The reason this is so, is because I'm using the "devices" XML files > that are supplied with Atmel Studio to get the fuse values from. Those > give the name, value and mapping location of every fuse, but don't > supply the default values. > > > They actually do - All(or at least most) of the latest xmls (atdfs now) for mega and tiny devices contain the defaultvalue for Fuse bytes. The attribute is initval. I can't quite remember when they were added but it's possible that they were only publicly available in Studio 7. If you don't want studio 7 you can also download the tiny and mega packs from http://packs.download.atmel.com/ Does that help you? Example from AT90CAN64: <module caption="" name="FUSE"> <register-group caption="" name="FUSE"> <register caption="" name="EXTENDED" offset="0x02" size="1" initval="0xFF"> <bitfield caption="Brown-out Detector trigger level" mask="0x0E" name="BODLEVEL" values="ENUM_BODLEVEL"/> <bitfield caption="Reserved for factory tests" mask="0x01" name="TA0SEL"/> </register> <register caption="" name="HIGH" offset="0x01" size="1" initval="0x99"> <bitfield caption="On-Chip Debug Enabled" mask="0x80" name="OCDEN"/> <bitfield caption="JTAG Interface Enabled" mask="0x40" name="JTAGEN"/> <bitfield caption="Serial program downloading (SPI) enabled" mask="0x20" name="SPIEN"/> <bitfield caption="Watchdog timer always on" mask="0x10" name="WDTON"/> <bitfield caption="Preserve EEPROM through the Chip Erase cycle" mask="0x08" name="EESAVE"/> <bitfield caption="Select Boot Size" mask="0x06" name="BOOTSZ" values="ENUM_BOOTSZ"/> <bitfield caption="Boot Reset vector Enabled" mask="0x01" name="BOOTRST"/> </register> <register caption="" name="LOW" offset="0x00" size="1" initval="0x62"> <bitfield caption="Divide clock by 8 internally; [CKDIV8=0]" mask="0x80" name="CKDIV8"/> <bitfield caption="Clock output on PORTC7; [CKOUT=0]" mask="0x40" name="CKOUT"/> <bitfield caption="Select Clock Source" mask="0x3F" name="SUT_CKSEL" values="ENUM_SUT_CKSEL"/> </register>
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