【开发板评测】像玩Arduino一样玩LaunchPad MSP430G2开发板

/*

  ************************************************************************

  *   pins_energia.h

  *

  *   Energia core files for MSP430

  *      Copyright (c) 2012 Robert Wessels. All right reserved.

  *

  *     Contribution: Rei VILO

  *

  ***********************************************************************

  Derived from:

  pins_arduino.h - Pin definition functions for Arduino

  Part of Arduino - http://www.arduino.cc/



  Copyright (c) 2007 David A. Mellis



  This library is free software; you can redistribute it and/or

  modify it under the terms of the GNU Lesser General Public

  License as published by the Free Software Foundation; either

  version 2.1 of the License, or (at your option) any later version.



  This library is distributed in the hope that it will be useful,

  but WITHOUT ANY WARRANTY; without even the implied warranty of

  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  Lesser General Public License for more details.



  You should have received a copy of the GNU Lesser General

  Public License along with this library; if not, write to the

  Free Software Foundation, Inc., 59 Temple Place, Suite 330,

  Boston, MA  02111-1307  USA

*/



#ifndef Pins_Energia_h

#define Pins_Energia_h

#ifndef BV

#define BV(x) (1 << (x))

#endif



static const uint8_t SS      = 8;  /* P2.0 */

static const uint8_t SCK     = 7;  /* P1.5 */

static const uint8_t MOSI    = 15; /* P1.7 */

static const uint8_t MISO    = 14; /* P1.6 */

static const uint8_t TWISCL1  = 9;   /* P2.1 SW I2C */

static const uint8_t TWISDA1  = 10;  /* P2.2 SW I2C */

static const uint8_t TWISDA0  = 15;  /* P1.7 */

static const uint8_t TWISCL0  = 14;  /* P1.6 */

static const uint8_t DEBUG_UARTRXD = 3;  /* Receive  Data (RXD) at P1.1 */

static const uint8_t DEBUG_UARTTXD = 4;  /* Transmit Data (TXD) at P1.2 */

#define TWISDA1_SET_MODE  (INPUT)

#define TWISCL1_SET_MODE  (INPUT)

#if defined(__MSP430_HAS_USCI__)

#define TWISDA0_SET_MODE  (PORT_SELECTION0 | PORT_SELECTION1 /* | INPUT_PULLUP*/) /* do not enable the pull ups for this device */

#define TWISCL0_SET_MODE  (PORT_SELECTION0 | PORT_SELECTION1 /* | INPUT_PULLUP*/)

#define DEBUG_UARTRXD_SET_MODE (PORT_SELECTION0 | PORT_SELECTION1 | INPUT)

#define DEBUG_UARTTXD_SET_MODE (PORT_SELECTION0 | PORT_SELECTION1 | OUTPUT)

#define SPISCK_SET_MODE (PORT_SELECTION0 | PORT_SELECTION1)

#define SPIMOSI_SET_MODE (PORT_SELECTION0 | PORT_SELECTION1)

#define SPIMISO_SET_MODE (PORT_SELECTION0 | PORT_SELECTION1)

#endif

#if defined(__MSP430_HAS_USI__)

#define TWISDA0_SET_MODE  (PORT_SELECTION0 | INPUT_PULLUP)

#define TWISCL0_SET_MODE  (PORT_SELECTION0 | INPUT_PULLUP)

#define DEBUG_UARTRXD_SET_MODE (PORT_SELECTION0 | INPUT)

#define DEBUG_UARTTXD_SET_MODE (PORT_SELECTION0 | OUTPUT)

#define SPISCK_SET_MODE (PORT_SELECTION0)

#define SPIMOSI_SET_MODE (PORT_SELECTION0)

#define SPIMISO_SET_MODE (PORT_SELECTION0)

#endif



/* Define the default I2C settings */

#define DEFAULT_I2C -1 /* indicates SW I2C on pseudo module 1 */

#define TWISDA TWISDA1

#define TWISCL TWISCL1

#define TWISDA_SET_MODE  TWISDA1_SET_MODE

#define TWISCL_SET_MODE  TWISCL1_SET_MODE



#define DEBUG_UART_MODULE_OFFSET 0x0



#define DEBUG_UART_MODULE 0x0



static const uint8_t A0  = 2;

static const uint8_t A1  = 3;

static const uint8_t A2  = 4;

static const uint8_t A3  = 5;

static const uint8_t A4  = 6;

static const uint8_t A5  = 7;

static const uint8_t A6  = 14;

static const uint8_t A7  = 15;

static const uint8_t A10 = 128 + 10; // special. This is the internal temp sensor



//                      +-\/-+

//               VCC   1|    |20  GND

//         (A0)  P1.0  2|    |19  XIN

//         (A1)  P1.1  3|    |18  XOUT

//         (A2)  P1.2  4|    |17  TEST

//         (A3)  P1.3  5|    |16  RST#

//         (A4)  P1.4  6|    |15  P1.7  (A7) (SCL) (MISO) depends on chip

//         (A5)  P1.5  7|    |14  P1.6  (A6) (SDA) (MOSI)

//               P2.0  8|    |13  P2.5

//               P2.1  9|    |12  P2.4

//               P2.2 10|    |11  P2.3

//                      +----+

//



// Pin names based on the silkscreen

//

static const uint8_t P1_0 = 2;

static const uint8_t P1_1 = 3;

static const uint8_t P1_2 = 4;

static const uint8_t P1_3 = 5;

static const uint8_t P1_4 = 6;

static const uint8_t P1_5 = 7;

static const uint8_t P2_0 = 8;

static const uint8_t P2_1 = 9;

static const uint8_t P2_2 = 10;

static const uint8_t P2_3 = 11;

static const uint8_t P2_4 = 12;

static const uint8_t P2_5 = 13;

static const uint8_t P1_6 = 14;

static const uint8_t P1_7 = 15;

static const uint8_t P2_7 = 18;

static const uint8_t P2_6 = 19;



static const uint8_t RED_LED = 2;

static const uint8_t GREEN_LED = 14;

static const uint8_t PUSH2 = 5;

static const uint8_t TEMPSENSOR = 128 + 10; // depends on chip





#ifdef ARDUINO_MAIN



const uint16_t port_to_input[] = {

   NOT_A_PORT,

   (const uint16_t) (&P1IN),

   (const uint16_t) (&P2IN),

#ifdef __MSP430_HAS_PORT3_R__

   (const uint16_t) (&P3IN),

#endif

};



const uint16_t port_to_output[] = {

   NOT_A_PORT,

   (const uint16_t) (&P1OUT),

   (const uint16_t) (&P2OUT),

#ifdef __MSP430_HAS_PORT3_R__

   (const uint16_t) (&P3OUT),

#endif

};



const uint16_t port_to_dir[] = {

   NOT_A_PORT,

   (const uint16_t) (&P1DIR),

   (const uint16_t) (&P2DIR),

#ifdef __MSP430_HAS_PORT3_R__

   (const uint16_t) (&P3DIR),

#endif

};



const uint16_t port_to_ren[] = {

   NOT_A_PORT,

   (const uint16_t) (&P1REN),

   (const uint16_t) (&P2REN),

#ifdef __MSP430_HAS_PORT3_R__

   (const uint16_t) (&P3REN),

#endif

};



const uint16_t port_to_sel0[] = {  /* put this PxSEL register under the group of PxSEL0 */

   NOT_A_PORT,

   (const uint16_t) (&P1SEL),

   (const uint16_t) (&P2SEL),

#ifdef __MSP430_HAS_PORT3_R__

   (const uint16_t) (&P3SEL),

#endif

};



const uint16_t port_to_sel2[] = {

   NOT_A_PORT,

#if (defined(P1SEL2_) || defined(P1SEL2) || defined(__MSP430_HAS_P1SEL2__))

   (const uint16_t) (&P1SEL2),

#else

        NOT_A_PORT,

#endif

#if (defined(P2SEL2_) || defined(P2SEL2) || defined(__MSP430_HAS_P2SEL2__))

   (const uint16_t) (&P2SEL2),

#else 

        NOT_A_PORT,

#endif

#if (defined(P3SEL2_) || defined(P3SEL2) || defined(__MSP430_HAS_P3SEL2__))

   (const uint16_t) (&P3SEL2),

#else

        NOT_A_PORT,

#endif

};





/* 

 * Defines for devices with 2x TA3 timers (e.g. MSP430g2553). On the 20pin devices, upto 3 analog outputs are available

 * T0A1, T1A1 and T1A2 

 */

const uint8_t digital_pin_to_timer[] = {

   NOT_ON_TIMER, /*  dummy */

   NOT_ON_TIMER, /*  1 - VCC */

   NOT_ON_TIMER, /*  2 - P1.0 */

   NOT_ON_TIMER, /*  3 - P1.1, note: A0 output cannot be used with analogWrite */

   T0A1,         /*  4 - P1.2 */

   NOT_ON_TIMER, /*  5 - P1.3 */

   NOT_ON_TIMER, /*  6 - P1.4 note: special case. Leaving as no timer due to difficulty determining if available */

   NOT_ON_TIMER, /*  7 - P1.5 note: A0 output cannot be used with analogWrite  */

#if defined(__MSP430_HAS_T1A3__) 

   NOT_ON_TIMER, /*  8 - P2.0 note: A0 output cannot be used with analogWrite */

   T1A1,         /*  9 - P2.1 */

   T1A1,         /* 10 - P2.2 */

   NOT_ON_TIMER, /* 11 - P2.3 note: A0 output cannot be used with analogWrite  */

   T1A2,         /* 12 - P2.4 */

   T1A2,         /* 13 - P2.5 */

#else

   NOT_ON_TIMER, /*  8 - P2.0 */

   NOT_ON_TIMER, /*  9 - P2.1 */

   NOT_ON_TIMER, /* 10 - P2.3 */

   NOT_ON_TIMER, /* 11 - P2.4 */

   NOT_ON_TIMER, /* 12 - P2.5 */

   NOT_ON_TIMER, /* 13 - P2.6 */

#endif

   T0A1,         /* 14 - P1.6 */

   NOT_ON_TIMER, /* 15 - P1.7 */

   NOT_ON_TIMER, /* 16 - /RESET */  

   NOT_ON_TIMER, /* 17 - TEST */  

   NOT_ON_TIMER, /* 18 - XOUT - P2.7 */

   T0A1,         /* 19 - XIN - P2.6: */

   NOT_ON_TIMER, /* 20 - GND */

};



const uint8_t digital_pin_to_port[] = {

   NOT_A_PIN, /* dummy */

   NOT_A_PIN, /* 1 */

   P1, /* 2 */

   P1, /* 3 */

   P1, /* 4 */

   P1, /* 5 */

   P1, /* 6 */

   P1, /* 7 */

   P2, /* 8 */

   P2, /* 9 */

   P2, /* 10 */

   P2, /* 11 */

   P2, /* 12 */

   P2, /* 13 */

   P1, /* 14 */

   P1, /* 15 */

   NOT_A_PIN, /* 16 */

   NOT_A_PIN, /* 17 */

   P2, /* 18 */

   P2, /* 19 */

   NOT_A_PIN, /* 20 */

};



const uint8_t digital_pin_to_bit_mask[] = {

   NOT_A_PIN, /* 0,  pin count starts at 1 */

   NOT_A_PIN, /* 1,  VCC */

   BV(0),     /* 2,  port P1.0 */

   BV(1),     /* 3,  port P1.1 */

   BV(2),     /* 4,  port P1.2 */

   BV(3),     /* 5,  port P1.3*/

   BV(4),     /* 6,  port P1.4 */

   BV(5),     /* 7,  port P1.5 */

   BV(0),     /* 8,  port P2.0 */

   BV(1),     /* 9,  port P2.1 */

   BV(2),     /* 10, port P2.2 */

   BV(3),     /* 11, port P2.3 */

   BV(4),     /* 12, port P2.4 */

   BV(5),     /* 13, port P2.5 */

   BV(6),     /* 14, port P1.6 */

   BV(7),     /* 15, port P1.7 */

   NOT_A_PIN, /* 16, RST */

   NOT_A_PIN, /* 17, TEST */

   BV(7),     /* 18, XOUT */

   BV(6),     /* 19, XIN */

   NOT_A_PIN, /* 20, GND */

};

const uint32_t digital_pin_to_analog_in[] = {

        NOT_ON_ADC,     /*  dummy   */

        NOT_ON_ADC,     /*  1 - 3.3V*/

        0,            /*  2 - A0 */

        1,              /*  3 - A1 */

        2,             /*  4 - A2 */

        3,             /*  5 - A3 */

        4,             /*  6 - A4 */

        5,            /*  7 - A5 */

        NOT_ON_ADC,    /*  8 - P2.0 */

        NOT_ON_ADC,    /*  9 - P2.1 */

        NOT_ON_ADC,    /*  10 - P2.2 */

        NOT_ON_ADC,    /*  11 - P2.3 */

        NOT_ON_ADC,    /*  12 - P2.4 */

        NOT_ON_ADC,    /*  13 - P2.5 */

        6,              /*  14 - A6 */

        7,              /*  15 - A7 */

        NOT_ON_ADC,    /*  16 - RST */

        NOT_ON_ADC,     /*  17 - PF0 */

        NOT_ON_ADC,    /*  18 - PE0 */

        NOT_ON_ADC,     /*  19 - PB2 */

        NOT_ON_ADC     /*  20 - GND */

};



#endif

#endif

/*

  Fade

 

  This example shows how to fade an LED on pin 14

  using the analogWrite() function.

 

  Hardware Required:

  * MSP-EXP430G2 LaunchPad

  

  This example code is in the public domain.

 

*/



int brightness = 0;    // how bright the LED is

int fadeAmount = 5;    // how many points to fade the LED by



void setup()  { 

  // declare pin 14 to be an output:

  pinMode(GREEN_LED, OUTPUT);

} 



void loop()  { 

  // set the brightness of pin 9:

  analogWrite(GREEN_LED, brightness);    



  // change the brightness for next time through the loop:

  brightness = brightness + fadeAmount;



  // reverse the direction of the fading at the ends of the fade: 

  if (brightness == 0 || brightness == 255) {

    fadeAmount = -fadeAmount ; 

  }     

  // wait for 30 milliseconds to see the dimming effect    

  delay(30);                            

}