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-rw-r--r--Bootloaders/CDC/BootloaderCDC.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/Bootloaders/CDC/BootloaderCDC.h b/Bootloaders/CDC/BootloaderCDC.h
index b5d5e0b02..76d579d26 100644
--- a/Bootloaders/CDC/BootloaderCDC.h
+++ b/Bootloaders/CDC/BootloaderCDC.h
@@ -52,6 +52,11 @@
#include <LUFA/Drivers/USB/USB.h>
#include <LUFA/Drivers/Board/LEDs.h>
+ /* Preprocessor Checks: */
+ #if !defined(__OPTIMIZE_SIZE__)
+ #error This bootloader requires that it be compiled for size, not speed for it to fit into the target device.
+ #endif
+
/* Macros: */
/** Version major of the CDC bootloader. */
#define BOOTLOADER_VERSION_MAJOR 0x01