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Switching device to ATtiny85 @1MHz (internal)

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Justin R. Cutler 2012-12-24 10:05:25 -08:00
parent b5bd237a4e
commit d1cdff8ef6
1 changed files with 14 additions and 14 deletions
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28
Makefile
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@ -1,6 +1,6 @@
# Name: Makefile
# Author: Justin R. Cutler <justin.r.cutler@gmail.com>
# Copyright: Copyright 2012 Justin R. Cutler
# Copyright: 2012 Justin R. Cutler
# License: GPL
# This is a prototype Makefile. Modify it according to your needs.
@ -17,30 +17,30 @@
# default_serial = "avrdoper"
# FUSES ........ Parameters for avrdude to flash the fuses appropriately.
DEVICE = atmega8
CLOCK = 8000000
DEVICE = attiny85
CLOCK = 1000000
PROGRAMMER = #-c stk500v2 -P avrdoper
OBJECTS = main.o
FUSES = -U hfuse:w:0xd9:m -U lfuse:w:0x24:m
FUSES = -U hfuse:w:0xdf:m -U lfuse:w:0x62:m
# ATMega8 fuse bits used above (fuse bits for other devices are different!):
# Example for 8 MHz internal oscillator
# ATtiny85 fuse bits used above (fuse bits for other devices are different!):
# Example for 1 MHz internal oscillator
# Fuse high byte:
# 0xd9 = 1 1 0 1 1 0 0 1 <-- BOOTRST (boot reset vector at 0x0000)
# ^ ^ ^ ^ ^ ^ ^------ BOOTSZ0
# | | | | | +-------- BOOTSZ1
# 0xd9 = 1 1 0 1 1 1 1 1
# ^ ^ ^ ^ ^ \-+-/
# | | | | | +------ BODLEVEL 2..0 (disabled)
# | | | | +---------- EESAVE (set to 0 to preserve EEPROM over chip erase)
# | | | +-------------- CKOPT (clock option, depends on oscillator type)
# | | | +-------------- WDTON (if set to 0, watchdog is always on)
# | | +---------------- SPIEN (if set to 1, serial programming is disabled)
# | +------------------ WDTON (if set to 0, watchdog is always on)
# | +------------------ DWEN (if set to 0, DebugWIRE is enabled)
# +-------------------- RSTDISBL (if set to 0, RESET pin is disabled)
# Fuse low byte:
# 0x24 = 0 0 1 0 0 1 0 0
# 0x62 = 0 1 1 0 0 0 1 0
# ^ ^ \ / \--+--/
# | | | +------- CKSEL 3..0 (8M internal RC)
# | | +--------------- SUT 1..0 (slowly rising power)
# | +------------------ BODEN (if 0, brown-out detector is enabled)
# +-------------------- BODLEVEL (if 0: 4V, if 1: 2.7V)
# | +------------------ CKOUT (Clock output enabled)
# +-------------------- CKDIV8 (Clock divided by 8)
#
# For computing fuse byte values for other devices and options see
# the fuse bit calculator at http://www.engbedded.com/fusecalc/