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-rwxr-xr-xcores/arduino/Print.cpp3
-rwxr-xr-xcores/arduino/Print.h5
-rw-r--r--cores/arduino/USBAPI.h1
-rw-r--r--cores/arduino/WInterrupts.c36
-rwxr-xr-xcores/arduino/wiring_private.h2
-rw-r--r--libraries/SD/utility/Sd2PinMap.h63
-rw-r--r--libraries/SPI/SPI.cpp27
-rw-r--r--libraries/SoftwareSerial/examples/SoftwareSerialExample/SoftwareSerialExample.ino24
-rw-r--r--libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino20
9 files changed, 119 insertions, 62 deletions
diff --git a/cores/arduino/Print.cpp b/cores/arduino/Print.cpp
index e541a6c..711251c 100755
--- a/cores/arduino/Print.cpp
+++ b/cores/arduino/Print.cpp
@@ -226,6 +226,9 @@ size_t Print::printFloat(double number, uint8_t digits)
{
size_t n = 0;
+ if (isnan(number)) return print("nan");
+ if (isinf(number)) return print("inf");
+
// Handle negative numbers
if (number < 0.0)
{
diff --git a/cores/arduino/Print.h b/cores/arduino/Print.h
index 1af6b72..dc76150 100755
--- a/cores/arduino/Print.h
+++ b/cores/arduino/Print.h
@@ -46,7 +46,10 @@ class Print
void clearWriteError() { setWriteError(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);
size_t print(const __FlashStringHelper *);
diff --git a/cores/arduino/USBAPI.h b/cores/arduino/USBAPI.h
index d5abdb6..eb2e593 100644
--- a/cores/arduino/USBAPI.h
+++ b/cores/arduino/USBAPI.h
@@ -39,6 +39,7 @@ public:
virtual int read(void);
virtual void flush(void);
virtual size_t write(uint8_t);
+ using Print::write; // pull in write(str) and write(buf, size) from Print
operator bool();
};
extern Serial_ Serial;
diff --git a/cores/arduino/WInterrupts.c b/cores/arduino/WInterrupts.c
index 8f3ec84..62efc9c 100644
--- a/cores/arduino/WInterrupts.c
+++ b/cores/arduino/WInterrupts.c
@@ -59,6 +59,14 @@ void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode) {
EICRA = (EICRA & ~((1<<ISC10) | (1<<ISC11))) | (mode << ISC10);
EIMSK |= (1<<INT1);
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)
case 2:
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.)
switch (interruptNum) {
#if defined(__AVR_ATmega32U4__)
- case 0:
- EIMSK &= ~(1<<INT0);
- break;
- case 1:
- EIMSK &= ~(1<<INT1);
- break;
+ case 0:
+ EIMSK &= ~(1<<INT0);
+ break;
+ case 1:
+ EIMSK &= ~(1<<INT1);
+ break;
+ case 2:
+ EIMSK &= ~(1<<INT2);
+ break;
+ case 3:
+ EIMSK &= ~(1<<INT3);
+ break;
#elif defined(EICRA) && defined(EICRB) && defined(EIMSK)
case 2:
EIMSK &= ~(1 << INT0);
@@ -226,6 +240,16 @@ SIGNAL(INT1_vect) {
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)
SIGNAL(INT0_vect) {
diff --git a/cores/arduino/wiring_private.h b/cores/arduino/wiring_private.h
index f0ceb0c..026ce1a 100755
--- a/cores/arduino/wiring_private.h
+++ b/cores/arduino/wiring_private.h
@@ -56,6 +56,8 @@ extern "C"{
#define EXTERNAL_NUM_INTERRUPTS 8
#elif defined(__AVR_ATmega1284P__)
#define EXTERNAL_NUM_INTERRUPTS 3
+#elif defined(__AVR_ATmega32U4__)
+#define EXTERNAL_NUM_INTERRUPTS 4
#else
#define EXTERNAL_NUM_INTERRUPTS 2
#endif
diff --git a/libraries/SD/utility/Sd2PinMap.h b/libraries/SD/utility/Sd2PinMap.h
index 4bd75a3..1c76dd3 100644
--- a/libraries/SD/utility/Sd2PinMap.h
+++ b/libraries/SD/utility/Sd2PinMap.h
@@ -166,44 +166,43 @@ static const pin_map_t digitalPinMap[] = {
};
//------------------------------------------------------------------------------
#elif defined(__AVR_ATmega32U4__)
-// Teensy 2.0
+// Leonardo
// Two Wire (aka I2C) ports
-uint8_t const SDA_PIN = 6;
-uint8_t const SCL_PIN = 5;
+uint8_t const SDA_PIN = 2;
+uint8_t const SCL_PIN = 3;
// SPI port
-uint8_t const SS_PIN = 0;
-uint8_t const MOSI_PIN = 2;
-uint8_t const MISO_PIN = 3;
-uint8_t const SCK_PIN = 1;
+uint8_t const SS_PIN = 17;
+uint8_t const MOSI_PIN = 16;
+uint8_t const MISO_PIN = 14;
+uint8_t const SCK_PIN = 15;
static const pin_map_t digitalPinMap[] = {
- {&DDRB, &PINB, &PORTB, 0}, // B0 0
- {&DDRB, &PINB, &PORTB, 1}, // B1 1
- {&DDRB, &PINB, &PORTB, 2}, // B2 2
- {&DDRB, &PINB, &PORTB, 3}, // B3 3
- {&DDRB, &PINB, &PORTB, 7}, // B7 4
- {&DDRD, &PIND, &PORTD, 0}, // D0 5
- {&DDRD, &PIND, &PORTD, 1}, // D1 6
- {&DDRD, &PIND, &PORTD, 2}, // D2 7
- {&DDRD, &PIND, &PORTD, 3}, // D3 8
- {&DDRC, &PINC, &PORTC, 6}, // C6 9
- {&DDRC, &PINC, &PORTC, 7}, // C7 10
- {&DDRD, &PIND, &PORTD, 6}, // D6 11
- {&DDRD, &PIND, &PORTD, 7}, // D7 12
- {&DDRB, &PINB, &PORTB, 4}, // B4 13
- {&DDRB, &PINB, &PORTB, 5}, // B5 14
- {&DDRB, &PINB, &PORTB, 6}, // B6 15
- {&DDRF, &PINF, &PORTF, 7}, // F7 16
- {&DDRF, &PINF, &PORTF, 6}, // F6 17
- {&DDRF, &PINF, &PORTF, 5}, // F5 18
- {&DDRF, &PINF, &PORTF, 4}, // F4 19
- {&DDRF, &PINF, &PORTF, 1}, // F1 20
- {&DDRF, &PINF, &PORTF, 0}, // F0 21
- {&DDRD, &PIND, &PORTD, 4}, // D4 22
- {&DDRD, &PIND, &PORTD, 5}, // D5 23
- {&DDRE, &PINE, &PORTE, 6} // E6 24
+ {&DDRD, &PIND, &PORTD, 2}, // D2 0
+ {&DDRD, &PIND, &PORTD, 3}, // D3 1
+ {&DDRD, &PIND, &PORTD, 1}, // D1 2
+ {&DDRD, &PIND, &PORTD, 0}, // D0 3
+ {&DDRD, &PIND, &PORTD, 4}, // D4 4
+ {&DDRC, &PINC, &PORTC, 6}, // C6 5
+ {&DDRD, &PIND, &PORTD, 7}, // D7 6
+ {&DDRE, &PINE, &PORTE, 6}, // E6 7
+ {&DDRB, &PINB, &PORTB, 4}, // B4 8
+ {&DDRB, &PINB, &PORTB, 5}, // B5 9
+ {&DDRB, &PINB, &PORTB, 6}, // B6 10
+ {&DDRB, &PINB, &PORTB, 7}, // B7 11
+ {&DDRD, &PIND, &PORTD, 6}, // D6 12
+ {&DDRC, &PINC, &PORTC, 7}, // C7 13
+ {&DDRB, &PINB, &PORTB, 3}, // B3 14
+ {&DDRB, &PINB, &PORTB, 1}, // B1 15
+ {&DDRB, &PINB, &PORTB, 2}, // B2 16
+ {&DDRB, &PINB, &PORTB, 0}, // B0 17
+ {&DDRF, &PINF, &PORTF, 7}, // F7 18
+ {&DDRF, &PINF, &PORTF, 6}, // F6 19
+ {&DDRF, &PINF, &PORTF, 5}, // F5 20
+ {&DDRF, &PINF, &PORTF, 4}, // F4 21
+ {&DDRF, &PINF, &PORTF, 1}, // F1 22
+ {&DDRF, &PINF, &PORTF, 0}, // F0 23
};
//------------------------------------------------------------------------------
#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
diff --git a/libraries/SPI/SPI.cpp b/libraries/SPI/SPI.cpp
index 42915df..5e48073 100644
--- a/libraries/SPI/SPI.cpp
+++ b/libraries/SPI/SPI.cpp
@@ -14,27 +14,32 @@
SPIClass SPI;
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
// a general purpose output port (it doesn't influence
// SPI operations).
-
- pinMode(SCK, OUTPUT);
- pinMode(MOSI, 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
- // automatically switches to Slave, so the data direction of
+ // Warning: if the SS pin ever becomes a LOW INPUT then SPI
+ // automatically switches to Slave, so the data direction of
// the SS pin MUST be kept as OUTPUT.
SPCR |= _BV(MSTR);
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() {
SPCR &= ~_BV(SPE);
}
diff --git a/libraries/SoftwareSerial/examples/SoftwareSerialExample/SoftwareSerialExample.ino b/libraries/SoftwareSerial/examples/SoftwareSerialExample/SoftwareSerialExample.ino
index 69bcc01..6101bb1 100644
--- a/libraries/SoftwareSerial/examples/SoftwareSerialExample/SoftwareSerialExample.ino
+++ b/libraries/SoftwareSerial/examples/SoftwareSerialExample/SoftwareSerialExample.ino
@@ -5,11 +5,20 @@
Receives from software serial, sends to hardware serial.
The circuit:
- * RX is digital pin 2 (connect to TX of other device)
- * TX is digital pin 3 (connect to RX of other device)
+ * RX is digital pin 10 (connect to TX 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
- modified 9 Apr 2012
+ modified 25 May 2012
by Tom Igoe
based on Mikal Hart's example
@@ -18,17 +27,17 @@
*/
#include <SoftwareSerial.h>
-SoftwareSerial mySerial(2, 3); // RX, TX
+SoftwareSerial mySerial(10, 11); // RX, TX
void setup()
{
- // Open serial communications and wait for port to open:
+ // Open serial communications and wait for port to open:
Serial.begin(57600);
- while (!Serial) {
+ while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
-
+
Serial.println("Goodnight moon!");
// set the data rate for the SoftwareSerial port
@@ -43,3 +52,4 @@ void loop() // run over and over
if (Serial.available())
mySerial.write(Serial.read());
}
+
diff --git a/libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino b/libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino
index d9f8f45..d607ee6 100644
--- a/libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino
+++ b/libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino
@@ -16,8 +16,17 @@
* 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
+ 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
- modified 9 Apr 2012
+ modified 25 May 2012
by Tom Igoe
based on Mikal Hart's twoPortRXExample
@@ -26,11 +35,12 @@
*/
#include <SoftwareSerial.h>
-// software serial #1: TX = digital pin 2, RX = digital pin 3
-SoftwareSerial portOne(2, 3);
+// software serial #1: TX = digital pin 10, RX = digital pin 11
+SoftwareSerial portOne(10,11);
-// software serial #2: TX = digital pin 4, RX = digital pin 5
-SoftwareSerial portTwo(4, 5);
+// software serial #2: TX = digital pin 8, RX = digital pin 9
+// on the Mega, use other pins instead, since 8 and 9 don't work on the Mega
+SoftwareSerial portTwo(8,9);
void setup()
{
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-22 19:18:05 +0000