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authorDean Camera <dean@fourwalledcubicle.com>2011-02-09 17:58:21 +0000
committerDean Camera <dean@fourwalledcubicle.com>2011-02-09 17:58:21 +0000
commit088bfb10b293828e4fd85bb388e6f9d842d90f4f (patch)
tree93f5e2a7d50fa3b24eec80c9245ea06517be463e /Bootloaders/CDC
parent5995c3f880899b2573f1026ed6dc1c3c3a8e93d2 (diff)
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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.
Diffstat (limited to 'Bootloaders/CDC')
-rw-r--r--Bootloaders/CDC/makefile6
1 files changed, 4 insertions, 2 deletions
diff --git a/Bootloaders/CDC/makefile b/Bootloaders/CDC/makefile
index 3e43a168d..3b2e2db0b 100644
--- a/Bootloaders/CDC/makefile
+++ b/Bootloaders/CDC/makefile
@@ -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)