Kleiner Bascom AVR Kurs -
Fusebits Standardeinstellungen
Hallo!
Es geht um die Frage, wie die Fusebits in den meisten Fällen eingestellt werden müssen.
Und hier ist sie, die Auflistung der meist eingesetzten Standardeinstellungen der Fusebits für den ATmega8.
mySmartUSB mit "myAVR Workpad Plus"
1 Mhz interner RC-Oscillator
Low Fuse
11100001
Brown-out detection level at VCC=2.7 V; [BODLEVEL=1]
Int. RC Osc. 1 MHz; Start-up time: 6 CK + 64 ms; [CHSEL=0001 SUT=10]; default value
High Fuse
11011001
Serial program downloading (SPI) enabled; [SPIEN=0]
Boot Flash section size=1024 words Boot start address=$0C00; [BOOTSZ=00]; default value
Lockbits
11111111
Mode 1: No memory lock features enabled
Application Protection Mode 1: No Lock on SPM and LPM in Application Section
Boot Loader Protection Mode 1: No lock on SPM and LPM in Boot Loader Section
8 Mhz interner RC-Oscillator
Low Fuse
11100100
Brown-out detection level at VCC=2.7 V; [BODLEVEL=1]
Int. RC Osc. 8 MHz; Start-up time: 6 CK + 64 ms; [CKSEL=0100 SUT=10]
High Fuse
11011001
Serial program downloading (SPI) enabled; [SPIEN=0]
Boot Flash section size=1024 words Boot start address=$0C00; [BOOTSZ=00]; default value
Lockbits
11111111
Mode 1: No memory lock features enabled
Application Protection Mode 1: No Lock on SPM and LPM in Application Section
Boot Loader Protection Mode 1: No lock on SPM and LPM in Boot Loader Section
3-8 Mhz externer Quarz
Low Fuse
11111111
Brown-out detection level at VCC=2.7 V; [BODLEVEL=1]
Ext. Crystal/Resonator High Freq.; Start-up time: 16K CK + 64 ms; [CKSEL=1111 SUT=11]
High Fuse
11011001
Serial program downloading (SPI) enabled; [SPIEN=0]
Boot Flash section size=1024 words Boot start address=$0C00; [BOOTSZ=00]; default value
Lockbits
11111111
Mode 1: No memory lock features enabled
Application Protection Mode 1: No Lock on SPM and LPM in Application Section
Boot Loader Protection Mode 1: No lock on SPM and LPM in Boot Loader Section
8-16 Mhz externer Quarz
Low Fuse
11111111
Brown-out detection level at VCC=2.7 V; [BODLEVEL=1]
Ext. Crystal/Resonator High Freq.; Start-up time: 16K CK + 64 ms; [CKSEL=1111 SUT=11]
High Fuse
11001001
Serial program downloading (SPI) enabled; [SPIEN=0]
Boot Flash section size=1024 words Boot start address=$0C00; [BOOTSZ=00]; default value
CKOPT fuse (operation dependent of CKSEL fuses); [CKOPT=0]
Lockbits
11111111
Mode 1: No memory lock features enabled
Application Protection Mode 1: No Lock on SPM and LPM in Application Section
Boot Loader Protection Mode 1: No lock on SPM and LPM in Boot Loader Section
PonyProg
1 Mhz interner RC-Oscillator
Lockbits
11111111
High Fuse
11011001
SPIEN
BOOTSZ1
BOOTSZ0
Low Fuse
11100001
SUT0
CKSEL3
CKSEL2
CHSEL1
8 Mhz interner RC-Oscillator
Lockbits
11111111
High Fuse
11011001
SPIEN
BOOTSZ1
BOOTSZ0
Low Fuse
11100100
SUT0
CKSEL3
CKSEL1
CHSEL0
3-8 Mhz externer Quarz
Lockbits
11111111
High Fuse
11011001
SPIEN
BOOTSZ1
BOOTSZ0
Low Fuse
11111111
8-16 Mhz externer Quarz
Lockbits
11111111
High Fuse
11001001
SPIEN
CKOPT
BOOTSZ1
BOOTSZ0