diff options
Diffstat (limited to 'cores')
| -rw-r--r-- | cores/arduino/USBCore.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/cores/arduino/USBCore.h b/cores/arduino/USBCore.h index 4e08d71..66f3b5b 100644 --- a/cores/arduino/USBCore.h +++ b/cores/arduino/USBCore.h @@ -277,5 +277,22 @@ typedef struct #define D_CDCCS(_subtype,_d0,_d1) { 5, 0x24, _subtype, _d0, _d1 } #define D_CDCCS4(_subtype,_d0) { 4, 0x24, _subtype, _d0 } +// Bootloader related fields +// Old Caterina bootloader places the MAGIC key into unsafe RAM locations (it can be rewritten +// by the running sketch before to actual reboot). +// Newer bootloaders, recognizable by the LUFA "signature" at the end of the flash, can handle both +// the usafe and the safe location. Check once (in USBCore.cpp) if the bootloader in new, then set the global +// _updatedLUFAbootloader variable to true/false and place the magic key consequently +#ifndef MAGIC_KEY +#define MAGIC_KEY 0x7777 +#endif + +#ifndef MAGIC_KEY_POS +#define MAGIC_KEY_POS 0x0800 +#endif + +#ifndef NEW_LUFA_SIGNATURE +#define NEW_LUFA_SIGNATURE 0xDCFB +#endif #endif |