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1 /* Copyright (C) 2011 by Jacob Alexander
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2 *
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3 * Permission is hereby granted, free of charge, to any person obtaining a copy
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4 * of this software and associated documentation files (the "Software"), to deal
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5 * in the Software without restriction, including without limitation the rights
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6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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7 * copies of the Software, and to permit persons to whom the Software is
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8 * furnished to do so, subject to the following conditions:
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9 *
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10 * The above copyright notice and this permission notice shall be included in
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11 * all copies or substantial portions of the Software.
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12 *
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13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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19 * THE SOFTWARE.
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20 */
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21
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22 #include <avr/io.h>
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23 #include <avr/pgmspace.h>
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24 #include <avr/interrupt.h>
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25 #include <util/delay.h>
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26 #include "usb_keyboard.h"
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27
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28 #define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
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29
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30 int main()
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31 {
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32 // set for 16 MHz clock
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33 CPU_PRESCALE( 0 );
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34
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35 // Configuring Pins
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36 // TODO
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37
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38 // Initialize the USB, and then wait for the host to set configuration.
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39 // If the Teensy is powered without a PC connected to the USB port,
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40 // this will wait forever.
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41 usb_init();
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42 while ( !usb_configured() ) /* wait */ ;
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43
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44 // Wait an extra second for the PC's operating system to load drivers
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45 // and do whatever it does to actually be ready for input
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46 _delay_ms(1000);
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47
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48 // Main Detection Loop
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49 // TODO
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50 // usb_keyboard_press(KEY_B, KEY_SHIFT);
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51 }
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52
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