fuse.txt
1793 bytes
1Atmega32u4 Fuse/Lock Bits for Planck/Atomic/Preonic
2=========================
3
4 Low Fuse: 0x5E
5 High Fuse: 0x99
6 Extended Fuse: 0xF3
7 Lock Byte: 0xFF
8
9
10ATMega168P Fuse/Lock Bits
11=========================
12This configuration is from usbasploader's Makefile.
13
14 HFUSE 0xD6
15 LFUSE 0xDF
16 EFUSE 0x00
17 LOCK 0x3F(intact)
18
19#---------------------------------------------------------------------
20# ATMega168P
21#---------------------------------------------------------------------
22# Fuse extended byte:
23# 0x00 = 0 0 0 0 0 0 0 0 <-- BOOTRST (boot reset vector at 0x1800)
24# \+/
25# +------- BOOTSZ (00 = 2k bytes)
26# Fuse high byte:
27# 0xd6 = 1 1 0 1 0 1 1 0
28# ^ ^ ^ ^ ^ \-+-/
29# | | | | | +------ BODLEVEL 0..2 (110 = 1.8 V)
30# | | | | + --------- EESAVE (preserve EEPROM over chip erase)
31# | | | +-------------- WDTON (if 0: watchdog always on)
32# | | +---------------- SPIEN (allow serial programming)
33# | +------------------ DWEN (debug wire enable)
34# +-------------------- RSTDISBL (reset pin is enabled)
35# Fuse low byte:
36# 0xdf = 1 1 0 1 1 1 1 1
37# ^ ^ \ / \--+--/
38# | | | +------- CKSEL 3..0 (external >8M crystal)
39# | | +--------------- SUT 1..0 (crystal osc, BOD enabled)
40# | +------------------ CKOUT (if 0: Clock output enabled)
41# +-------------------- CKDIV8 (if 0: divide by 8)
42
43
44# Lock Bits
45# 0x3f = - - 1 1 1 1 1 1
46# \ / \-/ \-/
47# | | +----- LB 2..1 (No memory lock features enabled)
48# | +--------- BLB0 2..1 (No restrictions for SPM or LPM accessing the Application section)
49# +--------------- BLB1 2..1 (No restrictions for SPM or LPM accessing the Boot Loader section)