davinci_evm.h

MSP430和GPS的接口程序

#ifndef DaVinci_EVM_H
#define DaVinci_EVM_H


#include <msp430x12x2.h>
#include "configOptions.h"
#include "RTC_Calendar.h"
#include "sw_i2c_slave.h"


//
// UART
//
#define UART_BAUD_RATE  9600                // Baud Rate
#define UART_TX_RETRY   50000               // UART TX max retry count


//
// Clock MACROs
//
#define DCO_FREQ        7358000             // Max DCO frequency at 3.3V
//#define DCO_FREQ        8000000             // Max DCO frequency at 3.6V
#define DCO_CLKS        DCO_FREQ/4096       // Num of SMCLKS per ALK/8 period
#define DCO_TOL         1                   // +/- DCO clk tolerance
#define DCO_ROSC        1                   // Set to 1 if using Rosc, else 0
#define DCO_RSEL_MASK   0x07                // RSEL bit mask


//
// DCO Status LED Port Pin
//
#define DCO_LED_PIN     0x01                // DCO status LED pin
#define DCO_LED_PORT    P1OUT               // DCO status LED port
#define DCO_LED_DIR     P1DIR               // DCO status LED port direction
#define DCO_STATUS_LED  (DCO_LED_DIR |= DCO_LED_PIN)
                                            // Set status LED pin as output
#define DCO_LOCKED      (DCO_LED_PORT |= DCO_LED_PIN)
                                            // Illuminate DCO status LED


//
// IR Port Pin
//
#define IR_PIN          0x04                // IR pin is P1.2
#define IR_IN           P1IN
#define IR_OUT          P1OUT
#define IR_DIR          P1DIR
#define IR_SEL          P1SEL


//
// IR Bit Times
//
#define BIT_50          29                  // 885us @ 32768 ACLK
#define BIT_75          42                  // 1282us @ 32768 ACLK


//
// IR Buffer
//
#define IRBUFFLEN       32                  // IR receive buffer length


//
// Events
//
#define EVENT_TIMEOUT   0x01                // Timeout event
#define EVENT_IR        0x02                // IR event
#define EVENT_CHK_PINS  0x04                // Check input pins event
#define EVENT_RTC       0x08                // RTC event


//
// I2C Message Identifiers
//
#define SET_RTC_PARAMS       0
#define GET_RTC_PARAMS       1
#define SEND_IR_DATA         2
#define GET_LAST_IR_VALUE    3
#define GET_INPUT_STATE      4
#define GET_EVENT            5
#define SET_OUTPUT_STATE     6


//
// Event Flags for I2C getEvent message
//
#define EVENT_STATE_CHG      0x01           // Input signal state change
#define EVENT_IR_DATA        0x02           // IR data ready


//
// Input Pin Masks
//
#define P2_MASK         0x1E                // Input pins P2.4,3,2,1
#define P3_MASK         0xC6                // Input pins P3.7,6,2,1


//
// Timeout for Master I2C device to respond to interrupt
//
#define INTR_TIMEOUT    3300                // 3300 ACLKs (~100 msec)


//
// Errors
//
#define ERROR_DCO_MIN   0x01
#define ERROR_DCO_MAX   0x02
#define ERROR_DCO_OV    0x04
#define ERROR_TIMEOUT   0x10


#endif /* DaVinci_EVM_H */