1 /* Keyboard example with debug channel, for Teensy USB Development Board
2 * http://www.pjrc.com/teensy/usb_keyboard.html
3 * Copyright (c) 2008 PJRC.COM, LLC
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to deal
7 * in the Software without restriction, including without limitation the rights
8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 #include <avr/interrupt.h>
27 #include <util/delay.h>
34 #include "jump_bootloader.h"
35 #ifdef PS2_MOUSE_ENABLE
36 # include "ps2_mouse.h"
40 #define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
43 bool debug_enable = false;
44 bool debug_matrix = false;
45 bool debug_keyboard = false;
46 bool debug_mouse = false;
54 // set for 16 MHz clock
57 // Initialize the USB, and then wait for the host to set configuration.
58 // If the Teensy is powered without a PC connected to the USB port,
59 // this will wait forever.
61 while (!usb_configured()) /* wait */ ;
65 if (matrix_key_count() >= 3) {
67 for (int i = 0; i < 6; i++) {
80 debug_keyboard = true;
82 print("debug enabled.\n");
84 if (matrix_key_count() >= 4) {
85 print("jump to bootloader...\n");
87 jump_bootloader(); // not return