Merged upstream Arduino master branch

This commit is contained in:
Cristian Maglie 2012-06-26 00:51:35 +02:00
parent 129e23f965
commit 599e7eee69
9 changed files with 119 additions and 62 deletions

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@ -226,6 +226,9 @@ size_t Print::printFloat(double number, uint8_t digits)
{ {
size_t n = 0; size_t n = 0;
if (isnan(number)) return print("nan");
if (isinf(number)) return print("inf");
// Handle negative numbers // Handle negative numbers
if (number < 0.0) if (number < 0.0)
{ {

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@ -46,7 +46,10 @@ class Print
void clearWriteError() { setWriteError(0); } void clearWriteError() { setWriteError(0); }
virtual size_t write(uint8_t) = 0; virtual size_t write(uint8_t) = 0;
size_t write(const char *str) { return write((const uint8_t *)str, strlen(str)); } size_t write(const char *str) {
if (str == NULL) return 0;
return write((const uint8_t *)str, strlen(str));
}
virtual size_t write(const uint8_t *buffer, size_t size); virtual size_t write(const uint8_t *buffer, size_t size);
size_t print(const __FlashStringHelper *); size_t print(const __FlashStringHelper *);

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@ -39,6 +39,7 @@ public:
virtual int read(void); virtual int read(void);
virtual void flush(void); virtual void flush(void);
virtual size_t write(uint8_t); virtual size_t write(uint8_t);
using Print::write; // pull in write(str) and write(buf, size) from Print
operator bool(); operator bool();
}; };
extern Serial_ Serial; extern Serial_ Serial;

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@ -59,6 +59,14 @@ void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode) {
EICRA = (EICRA & ~((1<<ISC10) | (1<<ISC11))) | (mode << ISC10); EICRA = (EICRA & ~((1<<ISC10) | (1<<ISC11))) | (mode << ISC10);
EIMSK |= (1<<INT1); EIMSK |= (1<<INT1);
break; break;
case 2:
EICRA = (EICRA & ~((1<<ISC20) | (1<<ISC21))) | (mode << ISC20);
EIMSK |= (1<<INT2);
break;
case 3:
EICRA = (EICRA & ~((1<<ISC30) | (1<<ISC31))) | (mode << ISC30);
EIMSK |= (1<<INT3);
break;
#elif defined(EICRA) && defined(EICRB) && defined(EIMSK) #elif defined(EICRA) && defined(EICRB) && defined(EIMSK)
case 2: case 2:
EICRA = (EICRA & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00); EICRA = (EICRA & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00);
@ -147,12 +155,18 @@ void detachInterrupt(uint8_t interruptNum) {
// ATmega8. There, INT0 is 6 and INT1 is 7.) // ATmega8. There, INT0 is 6 and INT1 is 7.)
switch (interruptNum) { switch (interruptNum) {
#if defined(__AVR_ATmega32U4__) #if defined(__AVR_ATmega32U4__)
case 0: case 0:
EIMSK &= ~(1<<INT0); EIMSK &= ~(1<<INT0);
break; break;
case 1: case 1:
EIMSK &= ~(1<<INT1); EIMSK &= ~(1<<INT1);
break; break;
case 2:
EIMSK &= ~(1<<INT2);
break;
case 3:
EIMSK &= ~(1<<INT3);
break;
#elif defined(EICRA) && defined(EICRB) && defined(EIMSK) #elif defined(EICRA) && defined(EICRB) && defined(EIMSK)
case 2: case 2:
EIMSK &= ~(1 << INT0); EIMSK &= ~(1 << INT0);
@ -226,6 +240,16 @@ SIGNAL(INT1_vect) {
intFunc[EXTERNAL_INT_1](); intFunc[EXTERNAL_INT_1]();
} }
SIGNAL(INT2_vect) {
if(intFunc[EXTERNAL_INT_2])
intFunc[EXTERNAL_INT_2]();
}
SIGNAL(INT3_vect) {
if(intFunc[EXTERNAL_INT_3])
intFunc[EXTERNAL_INT_3]();
}
#elif defined(EICRA) && defined(EICRB) #elif defined(EICRA) && defined(EICRB)
SIGNAL(INT0_vect) { SIGNAL(INT0_vect) {

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@ -56,6 +56,8 @@ extern "C"{
#define EXTERNAL_NUM_INTERRUPTS 8 #define EXTERNAL_NUM_INTERRUPTS 8
#elif defined(__AVR_ATmega1284P__) #elif defined(__AVR_ATmega1284P__)
#define EXTERNAL_NUM_INTERRUPTS 3 #define EXTERNAL_NUM_INTERRUPTS 3
#elif defined(__AVR_ATmega32U4__)
#define EXTERNAL_NUM_INTERRUPTS 4
#else #else
#define EXTERNAL_NUM_INTERRUPTS 2 #define EXTERNAL_NUM_INTERRUPTS 2
#endif #endif

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@ -166,44 +166,43 @@ static const pin_map_t digitalPinMap[] = {
}; };
//------------------------------------------------------------------------------ //------------------------------------------------------------------------------
#elif defined(__AVR_ATmega32U4__) #elif defined(__AVR_ATmega32U4__)
// Teensy 2.0 // Leonardo
// Two Wire (aka I2C) ports // Two Wire (aka I2C) ports
uint8_t const SDA_PIN = 6; uint8_t const SDA_PIN = 2;
uint8_t const SCL_PIN = 5; uint8_t const SCL_PIN = 3;
// SPI port // SPI port
uint8_t const SS_PIN = 0; uint8_t const SS_PIN = 17;
uint8_t const MOSI_PIN = 2; uint8_t const MOSI_PIN = 16;
uint8_t const MISO_PIN = 3; uint8_t const MISO_PIN = 14;
uint8_t const SCK_PIN = 1; uint8_t const SCK_PIN = 15;
static const pin_map_t digitalPinMap[] = { static const pin_map_t digitalPinMap[] = {
{&DDRB, &PINB, &PORTB, 0}, // B0 0 {&DDRD, &PIND, &PORTD, 2}, // D2 0
{&DDRB, &PINB, &PORTB, 1}, // B1 1 {&DDRD, &PIND, &PORTD, 3}, // D3 1
{&DDRB, &PINB, &PORTB, 2}, // B2 2 {&DDRD, &PIND, &PORTD, 1}, // D1 2
{&DDRB, &PINB, &PORTB, 3}, // B3 3 {&DDRD, &PIND, &PORTD, 0}, // D0 3
{&DDRB, &PINB, &PORTB, 7}, // B7 4 {&DDRD, &PIND, &PORTD, 4}, // D4 4
{&DDRD, &PIND, &PORTD, 0}, // D0 5 {&DDRC, &PINC, &PORTC, 6}, // C6 5
{&DDRD, &PIND, &PORTD, 1}, // D1 6 {&DDRD, &PIND, &PORTD, 7}, // D7 6
{&DDRD, &PIND, &PORTD, 2}, // D2 7 {&DDRE, &PINE, &PORTE, 6}, // E6 7
{&DDRD, &PIND, &PORTD, 3}, // D3 8 {&DDRB, &PINB, &PORTB, 4}, // B4 8
{&DDRC, &PINC, &PORTC, 6}, // C6 9 {&DDRB, &PINB, &PORTB, 5}, // B5 9
{&DDRC, &PINC, &PORTC, 7}, // C7 10 {&DDRB, &PINB, &PORTB, 6}, // B6 10
{&DDRD, &PIND, &PORTD, 6}, // D6 11 {&DDRB, &PINB, &PORTB, 7}, // B7 11
{&DDRD, &PIND, &PORTD, 7}, // D7 12 {&DDRD, &PIND, &PORTD, 6}, // D6 12
{&DDRB, &PINB, &PORTB, 4}, // B4 13 {&DDRC, &PINC, &PORTC, 7}, // C7 13
{&DDRB, &PINB, &PORTB, 5}, // B5 14 {&DDRB, &PINB, &PORTB, 3}, // B3 14
{&DDRB, &PINB, &PORTB, 6}, // B6 15 {&DDRB, &PINB, &PORTB, 1}, // B1 15
{&DDRF, &PINF, &PORTF, 7}, // F7 16 {&DDRB, &PINB, &PORTB, 2}, // B2 16
{&DDRF, &PINF, &PORTF, 6}, // F6 17 {&DDRB, &PINB, &PORTB, 0}, // B0 17
{&DDRF, &PINF, &PORTF, 5}, // F5 18 {&DDRF, &PINF, &PORTF, 7}, // F7 18
{&DDRF, &PINF, &PORTF, 4}, // F4 19 {&DDRF, &PINF, &PORTF, 6}, // F6 19
{&DDRF, &PINF, &PORTF, 1}, // F1 20 {&DDRF, &PINF, &PORTF, 5}, // F5 20
{&DDRF, &PINF, &PORTF, 0}, // F0 21 {&DDRF, &PINF, &PORTF, 4}, // F4 21
{&DDRD, &PIND, &PORTD, 4}, // D4 22 {&DDRF, &PINF, &PORTF, 1}, // F1 22
{&DDRD, &PIND, &PORTD, 5}, // D5 23 {&DDRF, &PINF, &PORTF, 0}, // F0 23
{&DDRE, &PINE, &PORTE, 6} // E6 24
}; };
//------------------------------------------------------------------------------ //------------------------------------------------------------------------------
#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__) #elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)

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@ -14,27 +14,32 @@
SPIClass SPI; SPIClass SPI;
void SPIClass::begin() { void SPIClass::begin() {
// Set direction register for SCK and MOSI pin.
// MISO pin automatically overrides to INPUT. // Set SS to high so a connected chip will be "deselected" by default
digitalWrite(SS, HIGH);
// When the SS pin is set as OUTPUT, it can be used as // When the SS pin is set as OUTPUT, it can be used as
// a general purpose output port (it doesn't influence // a general purpose output port (it doesn't influence
// SPI operations). // SPI operations).
pinMode(SCK, OUTPUT);
pinMode(MOSI, OUTPUT);
pinMode(SS, OUTPUT); pinMode(SS, OUTPUT);
digitalWrite(SCK, LOW);
digitalWrite(MOSI, LOW);
digitalWrite(SS, HIGH);
// Warning: if the SS pin ever becomes a LOW INPUT then SPI // Warning: if the SS pin ever becomes a LOW INPUT then SPI
// automatically switches to Slave, so the data direction of // automatically switches to Slave, so the data direction of
// the SS pin MUST be kept as OUTPUT. // the SS pin MUST be kept as OUTPUT.
SPCR |= _BV(MSTR); SPCR |= _BV(MSTR);
SPCR |= _BV(SPE); SPCR |= _BV(SPE);
// Set direction register for SCK and MOSI pin.
// MISO pin automatically overrides to INPUT.
// By doing this AFTER enabling SPI, we avoid accidentally
// clocking in a single bit since the lines go directly
// from "input" to SPI control.
// http://code.google.com/p/arduino/issues/detail?id=888
pinMode(SCK, OUTPUT);
pinMode(MOSI, OUTPUT);
} }
void SPIClass::end() { void SPIClass::end() {
SPCR &= ~_BV(SPE); SPCR &= ~_BV(SPE);
} }

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@ -5,11 +5,20 @@
Receives from software serial, sends to hardware serial. Receives from software serial, sends to hardware serial.
The circuit: The circuit:
* RX is digital pin 2 (connect to TX of other device) * RX is digital pin 10 (connect to TX of other device)
* TX is digital pin 3 (connect to RX of other device) * TX is digital pin 11 (connect to RX of other device)
Note:
Not all pins on the Mega and Mega 2560 support change interrupts,
so only the following can be used for RX:
10, 11, 12, 13, 50, 51, 52, 53, 62, 63, 64, 65, 66, 67, 68, 69
Not all pins on the Leonardo support change interrupts,
so only the following can be used for RX:
8, 9, 10, 11, 14 (MISO), 15 (SCK), 16 (MOSI).
created back in the mists of time created back in the mists of time
modified 9 Apr 2012 modified 25 May 2012
by Tom Igoe by Tom Igoe
based on Mikal Hart's example based on Mikal Hart's example
@ -18,13 +27,13 @@
*/ */
#include <SoftwareSerial.h> #include <SoftwareSerial.h>
SoftwareSerial mySerial(2, 3); // RX, TX SoftwareSerial mySerial(10, 11); // RX, TX
void setup() void setup()
{ {
// Open serial communications and wait for port to open: // Open serial communications and wait for port to open:
Serial.begin(57600); Serial.begin(57600);
while (!Serial) { while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only ; // wait for serial port to connect. Needed for Leonardo only
} }
@ -43,3 +52,4 @@ void loop() // run over and over
if (Serial.available()) if (Serial.available())
mySerial.write(Serial.read()); mySerial.write(Serial.read());
} }

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@ -16,8 +16,17 @@
* First serial device's TX attached to digital pin 2, RX to pin 3 * First serial device's TX attached to digital pin 2, RX to pin 3
* Second serial device's TX attached to digital pin 4, RX to pin 5 * Second serial device's TX attached to digital pin 4, RX to pin 5
Note:
Not all pins on the Mega and Mega 2560 support change interrupts,
so only the following can be used for RX:
10, 11, 12, 13, 50, 51, 52, 53, 62, 63, 64, 65, 66, 67, 68, 69
Not all pins on the Leonardo support change interrupts,
so only the following can be used for RX:
8, 9, 10, 11, 14 (MISO), 15 (SCK), 16 (MOSI).
created 18 Apr. 2011 created 18 Apr. 2011
modified 9 Apr 2012 modified 25 May 2012
by Tom Igoe by Tom Igoe
based on Mikal Hart's twoPortRXExample based on Mikal Hart's twoPortRXExample
@ -26,11 +35,12 @@
*/ */
#include <SoftwareSerial.h> #include <SoftwareSerial.h>
// software serial #1: TX = digital pin 2, RX = digital pin 3 // software serial #1: TX = digital pin 10, RX = digital pin 11
SoftwareSerial portOne(2, 3); SoftwareSerial portOne(10,11);
// software serial #2: TX = digital pin 4, RX = digital pin 5 // software serial #2: TX = digital pin 8, RX = digital pin 9
SoftwareSerial portTwo(4, 5); // on the Mega, use other pins instead, since 8 and 9 don't work on the Mega
SoftwareSerial portTwo(8,9);
void setup() void setup()
{ {