Commit 61b5740a authored by Dean Camera's avatar Dean Camera
Browse files

Clean up bootloader makefile comments.

parent cd0bd7bf
......@@ -9,17 +9,14 @@
# LUFA Project Makefile.
# --------------------------------------
# Starting byte address of the bootloader, as a byte address - computed via the formula
# BOOT_START = ((FLASH_SIZE_KB - BOOT_SECTION_SIZE_KB) * 1024)
#
# Note that the bootloader size and start address given in AVRStudio is in words and not
# bytes, and so will need to be doubled to obtain the byte address needed by AVR-GCC.
# Flash size and bootloader section sizes of the target, in KB. These must
# match the target's total FLASH size and the bootloader size set in the
# device's fuses.
FLASH_SIZE_KB := 128
BOOT_SECTION_SIZE_KB := 8
# Formulas used to calculate the starting address of the Bootloader section, and the User Application
# API jump table (for more information on the latter, see the bootloader documentation). These formulas
# should not need to be altered - modify the FLASH_SIZE_KB and BOOT_SECTION_KB values above instead.
# Bootloader address calculations (requires the "bc" unix utility) - do
# not modify these calculations, but rather modify the depedant values above.
BOOT_START := 0x$(shell echo "obase=16; ($(FLASH_SIZE_KB) - $(BOOT_SECTION_SIZE_KB)) * 1024" | bc)
BOOT_API_TABLESTART := 0x$(shell echo "obase=16; (($(FLASH_SIZE_KB) * 1024) - 96)" | bc)
......
......@@ -9,17 +9,15 @@
# LUFA Project Makefile.
# --------------------------------------
# Starting byte address of the bootloader, as a byte address - computed via the formula
# BOOT_START = ((FLASH_SIZE_KB - BOOT_SECTION_SIZE_KB) * 1024)
#
# Note that the bootloader size and start address given in AVRStudio is in words and not
# bytes, and so will need to be doubled to obtain the byte address needed by AVR-GCC.
# Flash size and bootloader section sizes of the target, in KB. These must
# match the target's total FLASH size and the bootloader size set in the
# device's fuses.
FLASH_SIZE_KB := 128
BOOT_SECTION_SIZE_KB := 8
# Formulas used to calculate the starting address of the Bootloader section, and the User Application
# API jump table (for more information on the latter, see the bootloader documentation). These formulas
# should not need to be altered - modify the FLASH_SIZE_KB and BOOT_SECTION_KB values above instead.
# Bootloader address calculations (requires the "bc" unix utility) - do
# not modify these calculations, but rather modify the depedant values above.
CALC_ADDRESS_HEX = $(shell echo "obase=16; $(1)" | bc)
BOOT_START := 0x$(shell echo "obase=16; ($(FLASH_SIZE_KB) - $(BOOT_SECTION_SIZE_KB)) * 1024" | bc)
BOOT_API_TABLESTART := 0x$(shell echo "obase=16; (($(FLASH_SIZE_KB) * 1024) - 96)" | bc)
......
......@@ -9,19 +9,16 @@
# LUFA Project Makefile.
# --------------------------------------
# Starting byte address of the bootloader, as a byte address - computed via the formula
# BOOT_START = ((FLASH_SIZE_KB - BOOT_SECTION_SIZE_KB) * 1024)
#
# Note that the bootloader size and start address given in AVRStudio is in words and not
# bytes, and so will need to be doubled to obtain the byte address needed by AVR-GCC.
# Flash size and bootloader section sizes of the target, in KB. These must
# match the target's total FLASH size and the bootloader size set in the
# device's fuses.
FLASH_SIZE_KB := 128
BOOT_SECTION_SIZE_KB := 8
# Formulas used to calculate the starting address of the Bootloader section, and the User Application
# API jump table (for more information on the latter, see the bootloader documentation). These formulas
# should not need to be altered - modify the FLASH_SIZE_KB and BOOT_SECTION_KB values above instead.
# Bootloader address calculations (requires the "bc" unix utility) - do
# not modify these calculations, but rather modify the depedant values above.
BOOT_START := 0x$(shell echo "obase=16; ($(FLASH_SIZE_KB) - $(BOOT_SECTION_SIZE_KB)) * 1024" | bc)
BOOT_API_TABLESTART := 0x$(shell echo "obase=16; (($(FLASH_SIZE_KB) * 1024) - 96)" | bc)
MCU = at90usb1287
ARCH = AVR8
......
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