From fdc38ef3f92af7adeeb4de49550d8838c8a39b5c Mon Sep 17 00:00:00 2001 From: Jun Wako Date: Thu, 24 Sep 2015 12:29:11 +0900 Subject: Squashed 'tmk_core/' changes from dc0e46e..57d27a8 57d27a8 Merge branch 'core_update_150924' into core 024abe3 core: Fix NKRO ifdef 7aa2d30 core: Fix for disabling NKRO in Boot protocol 95651fd core: Fix message print of debug command c20cd29 lufa: Fix endpoint bank mode for ATMega32u2 82ac21f next_usb: Fix next_kbd_set_leds() 537d9c7 Change to KC_BOOTLOADER(KC_BTLD) f2b3772 Add an assignable RESET key fc99257 Fix parenthesis e852582 Fix weak modifier clear in action macro c2a6c5c core: Fix lufa suspend callback(#234) fa548c5 usb_usb: Ignore error usage(0x01-03) report 513d95c usb_usb: Support locking key indicator LED cd78802 core: Add keymap section ldscript for ATMega32U2 70c9abd Add description for non-US keys on keycode.h 538c192 lufa: Fix console flush #223 87628c9 Revert "Make action_for_key a weak symbol" 3c0a1ba Make action_for_key a weak symbol 6bb0d7d ibm4704_usb: Fix protocol handling b6ef5cf Add keyboard_setup() and matrix_setup() f4bb8b2 ibm4704_usb: Fix interrupt of clock(rising edge) 0c1fcc1 usb_usb: Change debug LED pin config 595710d Reduce code size of magic commands 6bed174 Add description of AVR bootloader and boot section 54c6a01 Merge commit 'f6d56675f9f981c5464f0ca7a1fbb0162154e8c5' d18d42e Merge branch 'core-update2' into core febec88 Add compile options '-fdata-sections' git-subtree-dir: tmk_core git-subtree-split: 57d27a8e39173a589b4abae74851f95c39940174 --- common/avr/bootloader.c | 49 +++++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 43 insertions(+), 6 deletions(-) (limited to 'common/avr/bootloader.c') diff --git a/common/avr/bootloader.c b/common/avr/bootloader.c index cda295b18..7c744e8c7 100644 --- a/common/avr/bootloader.c +++ b/common/avr/bootloader.c @@ -11,12 +11,49 @@ #endif -/* Boot Section Size in *BYTEs* - * Teensy halfKay 512 - * Teensy++ halfKay 1024 - * Atmel DFU loader 4096 - * LUFA bootloader 4096 - * USBaspLoader 2048 +/* Bootloader Size in *bytes* + * + * AVR Boot section size are defined by setting BOOTSZ fuse in fact. Consult with your MCU datasheet. + * Note that 'Word'(2 bytes) size and address are used in datasheet while TMK uses 'Byte'. + * + * + * Size of Bootloaders in bytes: + * Atmel DFU loader(ATmega32U4) 4096 + * Atmel DFU loader(AT90USB128) 8192 + * LUFA bootloader(ATmega32U4) 4096 + * Arduino Caterina(ATmega32U4) 4096 + * USBaspLoader(ATmega***) 2048 + * Teensy halfKay(ATmega32U4) 512 + * Teensy++ halfKay(AT90USB128) 1024 + * + * + * AVR Boot section is located at the end of Flash memory like the followings. + * + * + * byte Atmel/LUFA(ATMega32u4) byte Atmel(AT90SUB128) + * 0x0000 +---------------+ 0x00000 +---------------+ + * | | | | + * | | | | + * | Application | | Application | + * | | | | + * = = = = + * | | 32KB-4KB | | 128KB-8KB + * 0x6000 +---------------+ 0x1FC00 +---------------+ + * | Bootloader | 4KB | Bootloader | 8KB + * 0x7FFF +---------------+ 0x1FFFF +---------------+ + * + * + * byte Teensy(ATMega32u4) byte Teensy++(AT90SUB128) + * 0x0000 +---------------+ 0x00000 +---------------+ + * | | | | + * | | | | + * | Application | | Application | + * | | | | + * = = = = + * | | 32KB-512B | | 128KB-1KB + * 0x7E00 +---------------+ 0x1FC00 +---------------+ + * | Bootloader | 512B | Bootloader | 1KB + * 0x7FFF +---------------+ 0x1FFFF +---------------+ */ #ifndef BOOTLOADER_SIZE #warning To use bootloader_jump() you need to define BOOTLOADER_SIZE in config.h. -- cgit v1.2.3-70-g09d2