ATtiny85 @ 16MHz med eksternt crystal

[BjornTore]

Jeg får til å programmere min ATtiny85 med oppskriften fra http://hlt.media.mit.edu/?p=1229 men når jeg velger programmet "ArduinoISP" og Tools, Board og ATtiny85 (w/Arduino as ISP), så savner jeg valget "ATtiny85@16MHz ext crystal (w/Arduino as ISP)".

Tenker primært å få til 16MHz med et eksternt crystal, men kan alternativt også forsøke med intern klokke. Noen som vet hvor jeg kan laste Board "ATtiny85@16MHz external crystal (w/Arduino as ISP)"?

Eller finnes det noen koder en kan legge inn i scetchet slik at ATtiny85 ser etter eksternt crystal og bruker det?

[Erni]

Hvis du bruger denne core, får du muligheden for 16Mhz både med og uden krystal:

http://code.google.com/p/arduino-tiny/downloads/detail?name=arduino-tiny-0100-0015.zip

Det har også den fordel at den er udviklet af Coding Badly her på forum, og han er meget hjælpsom hvis der er problemer.

Iøvrigt er de forskellige indstillinger et spørgsmål om at bruge de rette "fuses". De bliver automatisk sat når du bruger funktionen "Burn Bootloader"

Oplysningerne ligger i filen boards.txt

Hvis HLT coren ellers virker på samme måde kan du jo prøver at kopiere dette fra min boards.txt:

Code: [Select]


###########################################################################

attiny85at16e.name=ATtiny85 @ 16 MHz  (external crystal; 4.3 V BOD)

# The following do NOT work...
# attiny85at16e.upload.using=avrispv2
# attiny85at16e.upload.using=Pololu USB AVR Programmer

# The following DO work (pick one)...
attiny85at16e.upload.using=arduino:arduinoisp
# attiny85at16e.upload.protocol=avrispv2
# attiny85at16e.upload.using=pololu

attiny85at16e.upload.maximum_size=8192

# Ext. Crystal Osc.; Frequency 8.0- MHz; Start-up time PWRDWN/RESET: 16K CK/14 CK + 65 ms; [CKSEL=1111 SUT=11]
# Brown-out detection level at VCC=4.3 V; [BODLEVEL=100]
# Preserve EEPROM memory through the Chip Erase cycle; [EESAVE=0]
# Serial program downloading (SPI) enabled; [SPIEN=0]

attiny85at16e.bootloader.low_fuses=0xFF
attiny85at16e.bootloader.high_fuses=0xD4
attiny85at16e.bootloader.extended_fuses=0xFF
attiny85at16e.bootloader.path=empty
attiny85at16e.bootloader.file=empty85at16.hex

attiny85at16e.build.mcu=attiny85
attiny85at16e.build.f_cpu=16000000L
attiny85at16e.build.core=tiny

###########################################################################

attiny85at16p.name=ATtiny85 @ 16 MHz  (internal PLL; 4.3 V BOD)

# The following do NOT work...
# attiny85at16p.upload.using=avrispv2
# attiny85at16p.upload.using=Pololu USB AVR Programmer

# The following DO work (pick one)...
attiny85at16p.upload.using=arduino:arduinoisp
# attiny85at16p.upload.protocol=avrispv2
# attiny85at16p.upload.using=pololu

attiny85at16p.upload.maximum_size=8192

# PLL Clock; Start-up time PWRDWN/RESET: 1K CK/14 CK + 4 ms; [CKSEL=0001 SUT=00]
# Brown-out detection level at VCC=4.3 V; [BODLEVEL=100]
# Preserve EEPROM memory through the Chip Erase cycle; [EESAVE=0]
# Serial program downloading (SPI) enabled; [SPIEN=0]

attiny85at16p.bootloader.low_fuses=0xC1
attiny85at16p.bootloader.high_fuses=0xD4
attiny85at16p.bootloader.extended_fuses=0xFF
attiny85at16p.bootloader.path=empty
attiny85at16p.bootloader.file=empty85at16.hex

attiny85at16p.build.mcu=attiny85
attiny85at16p.build.f_cpu=16000000L
attiny85at16p.build.core=tiny

###########################################################################

attiny85at8.name=ATtiny85 @ 8 MHz  (internal oscillator; BOD disabled)

# The following do NOT work...
# attiny85at8.upload.using=avrispv2
# attiny85at8.upload.using=Pololu USB AVR Programmer

# The following DO work (pick one)...
attiny85at8.upload.using=arduino:arduinoisp
# attiny85at8.upload.protocol=avrispv2
# attiny85at8.upload.using=pololu

attiny85at8.upload.maximum_size=8192

# Default clock (slowly rising power; long delay to clock; 8 MHz internal)
# Int. RC Osc. 8 MHz; Start-up time PWRDWN/RESET: 6 CK/14 CK + 64 ms; [CKSEL=0010 SUT=10]; default value
# Brown-out detection disabled; [BODLEVEL=111]
# Preserve EEPROM memory through the Chip Erase cycle; [EESAVE=0]

attiny85at8.bootloader.low_fuses=0xE2
attiny85at8.bootloader.high_fuses=0xD7
attiny85at8.bootloader.extended_fuses=0xFF
attiny85at8.bootloader.path=empty
attiny85at8.bootloader.file=empty85at8.hex

attiny85at8.build.mcu=attiny85
attiny85at8.build.f_cpu=8000000L
attiny85at8.build.core=tiny

###########################################################################

attiny85at1.name=ATtiny85 @ 1 MHz  (internal oscillator; BOD disabled)

# The following do NOT work...
# attiny85at1.upload.using=avrispv2
# attiny85at1.upload.using=Pololu USB AVR Programmer

# The following DO work (pick one)...
attiny85at1.upload.using=arduino:arduinoisp
# attiny85at1.upload.protocol=avrispv2
# attiny85at1.upload.using=pololu

attiny85at1.upload.maximum_size=8192

# Default clock (slowly rising power; long delay to clock; 8 MHz internal; divide clock by 8)
# Int. RC Osc. 8 MHz; Start-up time PWRDWN/RESET: 6 CK/14 CK + 64 ms; [CKSEL=0010 SUT=10]; default value
# Divide clock by 8 internally; [CKDIV8=0]
# Brown-out detection disabled; [BODLEVEL=111]
# Preserve EEPROM memory through the Chip Erase cycle; [EESAVE=0]

attiny85at1.bootloader.low_fuses=0x62
attiny85at1.bootloader.high_fuses=0xD7
attiny85at1.bootloader.extended_fuses=0xFF
attiny85at1.bootloader.path=empty
attiny85at1.bootloader.file=empty85at1.hex

attiny85at1.build.mcu=attiny85
attiny85at1.build.f_cpu=1000000L
attiny85at1.build.core=tiny


[BjornTore]

Jippiiii, endelig går det rette vei. Ser ut som jeg blir å få det til nå.

http://0o2471.net/48638