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
