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Atmega32u4 Fuse/Lock Bits for Planck/Atomic/Preonic
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=========================
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Low Fuse: 0x5E
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High Fuse: 0x99
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Extended Fuse: 0xF3
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Lock Byte: 0xFF
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ATMega168P Fuse/Lock Bits
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=========================
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This configuration is from usbasploader's Makefile.
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HFUSE 0xD6
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LFUSE 0xDF
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EFUSE 0x00
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LOCK 0x3F(intact)
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#---------------------------------------------------------------------
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# ATMega168P
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#---------------------------------------------------------------------
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# Fuse extended byte:
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# 0x00 = 0 0 0 0 0 0 0 0 <-- BOOTRST (boot reset vector at 0x1800)
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# \+/
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# +------- BOOTSZ (00 = 2k bytes)
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# Fuse high byte:
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# 0xd6 = 1 1 0 1 0 1 1 0
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# ^ ^ ^ ^ ^ \-+-/
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# | | | | | +------ BODLEVEL 0..2 (110 = 1.8 V)
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# | | | | + --------- EESAVE (preserve EEPROM over chip erase)
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# | | | +-------------- WDTON (if 0: watchdog always on)
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# | | +---------------- SPIEN (allow serial programming)
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# | +------------------ DWEN (debug wire enable)
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# +-------------------- RSTDISBL (reset pin is enabled)
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# Fuse low byte:
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# 0xdf = 1 1 0 1 1 1 1 1
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# ^ ^ \ / \--+--/
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# | | | +------- CKSEL 3..0 (external >8M crystal)
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# | | +--------------- SUT 1..0 (crystal osc, BOD enabled)
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# | +------------------ CKOUT (if 0: Clock output enabled)
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# +-------------------- CKDIV8 (if 0: divide by 8)
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# Lock Bits
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# 0x3f = - - 1 1 1 1 1 1
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# \ / \-/ \-/
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# | | +----- LB 2..1 (No memory lock features enabled)
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# | +--------- BLB0 2..1 (No restrictions for SPM or LPM accessing the Application section)
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# +--------------- BLB1 2..1 (No restrictions for SPM or LPM accessing the Boot Loader section)
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