diff options
| author | Scott Allen <saydisp-git@yahoo.ca> | 2017-11-13 17:41:23 +0100 |
|---|---|---|
| committer | Martino Facchin <m.facchin@arduino.cc> | 2017-11-13 17:41:34 +0100 |
| commit | 7d4bca50419f2b2e57f92e9bec1cbbbe6d846fc1 (patch) | |
| tree | 9fe993a839ec06b4faeb3f920ab8031369385319 /cores/arduino/USBCore.cpp | |
| parent | 31223160ebfeb6aef21dded0572003eedb2b8fd1 (diff) | |
Always read key to check for new LUFA bootloader
Instead of checking for the NEW_LUFA_SIGNATURE once in program memory and then
setting a flag which is used for further checks, a function is used that always
checks program memory directly.
If a flag is used, there's a slight chance that its location in RAM could fall
on MAGIC_KEY_POS. In this case, an aborted USB auto-reset sequence may fail.
Diffstat (limited to 'cores/arduino/USBCore.cpp')
| -rw-r--r-- | cores/arduino/USBCore.cpp | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/cores/arduino/USBCore.cpp b/cores/arduino/USBCore.cpp index e00fb02..81f689d 100644 --- a/cores/arduino/USBCore.cpp +++ b/cores/arduino/USBCore.cpp @@ -35,7 +35,6 @@ extern const u16 STRING_LANGUAGE[] PROGMEM; extern const u8 STRING_PRODUCT[] PROGMEM; extern const u8 STRING_MANUFACTURER[] PROGMEM; extern const DeviceDescriptor USB_DeviceDescriptorIAD PROGMEM; -extern bool _updatedLUFAbootloader; const u16 STRING_LANGUAGE[2] = { (3<<8) | (2+2), @@ -819,12 +818,6 @@ void USBDevice_::attach() UDIEN = (1<<EORSTE) | (1<<SOFE) | (1<<SUSPE); // Enable interrupts for EOR (End of Reset), SOF (start of frame) and SUSPEND TX_RX_LED_INIT; - -#if MAGIC_KEY_POS != (RAMEND-1) - if (pgm_read_word(FLASHEND - 1) == NEW_LUFA_SIGNATURE) { - _updatedLUFAbootloader = true; - } -#endif } void USBDevice_::detach() |