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Change bootloader makefiles to automatically compute the bootloader starting address from a flash size and bootloader section size, expressed in KB.

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This commit is contained in:
Dean Camera 2011-02-09 17:58:21 +00:00
parent 5995c3f880
commit 088bfb10b2
5 changed files with 12 additions and 7 deletions
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6
Bootloaders/CDC/makefile
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@ -86,11 +86,13 @@ F_CLOCK = $(F_CPU)
# Starting byte address of the bootloader, as a byte address - computed via the formula
# BOOT_START = ((TOTAL_FLASH_BYTES - BOOTLOADER_SECTION_SIZE_BYTES) * 1024)
# BOOT_START = ((FLASH_SIZE_KB - BOOT_SECTION_SIZE_KB) * 1024)
#
# Note that the bootloader size and start address given in AVRStudio is in words and not
# bytes, and so will need to be doubled to obtain the byte address needed by AVR-GCC.
BOOT_START = 0x1E000
FLASH_SIZE_KB = 128
BOOT_SECTION_SIZE_KB = 4
BOOT_START = 0x$(shell echo "obase=16; ($(FLASH_SIZE_KB) - $(BOOT_SECTION_SIZE_KB)) * 1024" | bc)
# Output format. (can be srec, ihex, binary)