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/* LED Blink Example with USB Debug Channel for Teensy USB Development Board
* http://www.pjrc.com/teensy/
* Copyright (c) 2008, 2010 PJRC.COM, LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <avr/io.h>
#include <avr/pgmspace.h>
#include <util/delay.h>
#include "usb_debug_only.h"
#include "print.h"
// Teensy 2.0: LED is active high
#if defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB1286__)
#define LED_ON (PORTD |= (1<<6))
#define LED_OFF (PORTD &= ~(1<<6))
// Teensy 1.0: LED is active low
#else
#define LED_ON (PORTD &= ~(1<<6))
#define LED_OFF (PORTD |= (1<<6))
#endif
#define LED_CONFIG (DDRD |= (1<<6))
#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
#define DIT 80 /* unit time for morse code */
void morse_character(char c);
void morse_P(const char *s);
const unsigned char morse_code_table[];
int main(void)
{
unsigned char i;
// set for 16 MHz clock, and make sure the LED is off
CPU_PRESCALE(0);
LED_CONFIG;
LED_OFF;
// initialize the USB, but don't want for the host to
// configure. The first several messages sent will be
// lost because the PC hasn't configured the USB yet,
// but we care more about blinking than debug messages!
usb_init();
// blink morse code messages!
while (1) {
for (i=0; i<6; i++) {
morse_P(PSTR("SOS"));
_delay_ms(1500);
}
morse_P(PSTR("DOES ANYBODY STILL KNOW MORSE CODE?"));
_delay_ms(4000);
}
}
// blink a single character in Morse code
void morse_character(char c)
{
unsigned char code, count;
if (c == ' ') {
print("Space\n");
_delay_ms(DIT * 7);
return;
}
if (c < 'A' || c > 'Z') {
print("Opps, unsupported character: ");
pchar(c);
print("\n");
return;
}
print("Char ");
pchar(c);
pchar(':');
code = pgm_read_byte(morse_code_table + (c - 'A'));
for (count = code & 0x07; count > 0; count--) {
LED_ON;
if (code & 0x80) {
print(" dah");
_delay_ms(DIT * 3);
} else {
print(" dit");
_delay_ms(DIT);
}
LED_OFF;
_delay_ms(DIT);
code = code << 1;
}
print("\n");
_delay_ms(DIT * 2);
}
// blink an entire message in Morse code
// the string must be in flash memory (using PSTR macro)
void morse_P(const char *s)
{
char c;
while (1) {
c = pgm_read_byte(s++);
if (!c) break;
morse_character(c);
}
print("\n");
}
// lookup table for all 26 letters. Upper 5 bits are the pulses
// to send (MSB first), and the lower 3 bits are the number of
// bits to send for this letter.
const unsigned char PROGMEM morse_code_table[] = {
0x40 + 2, // A: .-
0x80 + 4, // B: -...
0xA0 + 4, // C: -.-.
0x80 + 3, // D: -..
0x00 + 1, // E: .
0x20 + 4, // F: ..-.
0xC0 + 3, // G: --.
0x00 + 4, // H: ....
0x00 + 2, // I: ..
0x70 + 4, // J: .---
0xA0 + 3, // K: -.-
0x40 + 4, // L: .-..
0xC0 + 2, // M: --
0x80 + 2, // N: -.
0xE0 + 3, // O: ---
0x60 + 4, // P: .--.
0xD0 + 4, // Q: --.-
0x40 + 3, // R: .-.
0x00 + 3, // S: ...
0x80 + 1, // T: -
0x20 + 3, // U: ..-
0x10 + 4, // V: ...-
0x60 + 3, // W: .--
0x90 + 4, // X: -..-
0xB0 + 4, // Y: -.--
0xC0 + 4 // Z: --..
};
/* LED Blink Example with USB Debug Channel for Teensy USB Development Board
* http://www.pjrc.com/teensy/
* Copyright (c) 2008, 2010 PJRC.COM, LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <avr/io.h>
#include <avr/pgmspace.h>
#include <util/delay.h>
#include "usb_debug_only.h"
#include "print.h"
// Teensy 2.0: LED is active high
#if defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB1286__)
#define LED_ON (PORTD |= (1<<6))
#define LED_OFF (PORTD &= ~(1<<6))
// Teensy 1.0: LED is active low
#else
#define LED_ON (PORTD &= ~(1<<6))
#define LED_OFF (PORTD |= (1<<6))
#endif
#define LED_CONFIG (DDRD |= (1<<6))
#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
#define DIT 80 /* unit time for morse code */
void morse_character(char c);
void morse_P(const char *s);
const unsigned char morse_code_table[];
int main(void)
{
unsigned char i;
// set for 16 MHz clock, and make sure the LED is off
CPU_PRESCALE(0);
LED_CONFIG;
LED_OFF;
// initialize the USB, but don't want for the host to
// configure. The first several messages sent will be
// lost because the PC hasn't configured the USB yet,
// but we care more about blinking than debug messages!
usb_init();
// blink morse code messages!
while (1) {
for (i=0; i<6; i++) {
morse_P(PSTR("SOS"));
_delay_ms(1500);
}
morse_P(PSTR("DOES ANYBODY STILL KNOW MORSE CODE?"));
_delay_ms(4000);
}
}
// blink a single character in Morse code
void morse_character(char c)
{
unsigned char code, count;
if (c == ' ') {
print("Space\n");
_delay_ms(DIT * 7);
return;
}
if (c < 'A' || c > 'Z') {
print("Opps, unsupported character: ");
pchar(c);
print("\n");
return;
}
print("Char ");
pchar(c);
pchar(':');
code = pgm_read_byte(morse_code_table + (c - 'A'));
for (count = code & 0x07; count > 0; count--) {
LED_ON;
if (code & 0x80) {
print(" dah");
_delay_ms(DIT * 3);
} else {
print(" dit");
_delay_ms(DIT);
}
LED_OFF;
_delay_ms(DIT);
code = code << 1;
}
print("\n");
_delay_ms(DIT * 2);
}
// blink an entire message in Morse code
// the string must be in flash memory (using PSTR macro)
void morse_P(const char *s)
{
char c;
while (1) {
c = pgm_read_byte(s++);
if (!c) break;
morse_character(c);
}
print("\n");
}
// lookup table for all 26 letters. Upper 5 bits are the pulses
// to send (MSB first), and the lower 3 bits are the number of
// bits to send for this letter.
const unsigned char PROGMEM morse_code_table[] = {
0x40 + 2, // A: .-
0x80 + 4, // B: -...
0xA0 + 4, // C: -.-.
0x80 + 3, // D: -..
0x00 + 1, // E: .
0x20 + 4, // F: ..-.
0xC0 + 3, // G: --.
0x00 + 4, // H: ....
0x00 + 2, // I: ..
0x70 + 4, // J: .---
0xA0 + 3, // K: -.-
0x40 + 4, // L: .-..
0xC0 + 2, // M: --
0x80 + 2, // N: -.
0xE0 + 3, // O: ---
0x60 + 4, // P: .--.
0xD0 + 4, // Q: --.-
0x40 + 3, // R: .-.
0x00 + 3, // S: ...
0x80 + 1, // T: -
0x20 + 3, // U: ..-
0x10 + 4, // V: ...-
0x60 + 3, // W: .--
0x90 + 4, // X: -..-
0xB0 + 4, // Y: -.--
0xC0 + 4 // Z: --..
};
#include <avr/io.h>
#include <avr/pgmspace.h>
#include <util/delay.h>
#include "usb_debug_only.h"
#include "print.h"
include <avr/io.h>
include <avr/pgmspace.h>
include <util/delay.h>
include "usb_debug_only.h"
include "print.h"
// Teensy 2.0: LED is active high
#if defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB1286__)
#define LED_ON (PORTD |= (1<<6))
#define LED_OFF (PORTD &= ~(1<<6))
// Teensy 1.0: LED is active low
#else
#define LED_ON (PORTD &= ~(1<<6))
#define LED_OFF (PORTD |= (1<<6))
#endif
#define LED_CONFIG (DDRD |= (1<<6))
#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
#define DIT 80 /* unit time for morse code */
void morse_character(char c);
void morse_P(const char *s);
const unsigned char morse_code_table[];
// Teensy 2.0: LED is active high
if defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB1286__)
define LED_ON (PORTD |= (1<<6))
define LED_OFF (PORTD &= ~(1<<6))
// Teensy 1.0: LED is active low
#else
#define LED_ON (PORTD &= ~(1<<6))
#define LED_OFF (PORTD |= (1<<6))
#endif
define LED_CONFIG (DDRD |= (1<<6))
define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
define DIT 80 /* unit time for morse code */
void morse_character(char c);
void morse_P(const char *s);
const unsigned char morse_code_table[];
// Teensy 2.0: LED is active high
if defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB1286__)
define LED_ON (PORTD |= (1<<6))
define LED_OFF (PORTD &= ~(1<<6))
// Teensy 1.0: LED is active low
else
define LED_ON (PORTD &= ~(1<<6))
define LED_OFF (PORTD |= (1<<6))
endif
define LED_CONFIG (DDRD |= (1<<6))
define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
define DIT 80 /* unit time for morse code */
void morse_character(char c);
void morse_P(const char *s);
const unsigned char morse_code_table[];