/*------------------------------------------------------------------*-

   Main.H (v1.00)

  ------------------------------------------------------------------
   
   'Project Header' (see Chap 9) for project SCU_A3s (see Chap 27)


   COPYRIGHT
   ---------

   This code is from the book:

   PATTERNS FOR TIME-TRIGGERED EMBEDDED SYSTEMS by Michael J. Pont 
   [Pearson Education, 2001; ISBN: 0-201-33138-1].

   This code is copyright (c) 2001 by Michael J. Pont.
 
   See book for copyright details and other information.

-*------------------------------------------------------------------*/

#ifndef _MAIN_H
#define _MAIN_H

//------------------------------------------------------------------
// WILL NEED TO EDIT THIS SECTION FOR EVERY PROJECT
//------------------------------------------------------------------

// Must include the appropriate microcontroller header file here
#include <AT89x52.h>

// Include oscillator / chip details here 
// (essential if generic delays / timeouts are used)
//  -
// Oscillator / resonator frequency (in Hz) e.g. (11059200UL)
#define OSC_FREQ (12000000UL)

// Number of oscillations per instruction (4, 6 or 12)
// 12 - Original 8051 / 8052 and numerous modern versions
//  6 - Various Infineon and Philips devices, etc.
//  4 - Dallas, etc.
//
// Take care with Dallas devices 
// - Timers default to *12* osc ticks unless CKCON is modified 
// - If using generic code on a Dallas device, use 12 here
#define OSC_PER_INST (12)

//------------------------------------------------------------------
// SHOULD NOT NEED TO EDIT THE SECTIONS BELOW
//------------------------------------------------------------------
typedef unsigned char tByte;
typedef unsigned int  tWord;
typedef unsigned long tLong;

// Misc #defines
#ifndef TRUE
#define FALSE 0
#define TRUE (!FALSE)
#endif

#define RETURN_NORMAL (bit) 0
#define RETURN_ERROR (bit) 1


//------------------------------------------------------------------
// Interrupts
// - see Chapter 13.  
//------------------------------------------------------------------

// Generic 8051/52 timer interrupts (used in most schedulers)
#define INTERRUPT_Timer_0_Overflow 1
#define INTERRUPT_Timer_1_Overflow 3
#define INTERRUPT_Timer_2_Overflow 5

// Additional interrupts (used in shared-clock schedulers)
#define INTERRUPT_EXTERNAL_0 0
#define INTERRUPT_EXTERNAL_1 2
#define INTERRUPT_UART_Rx_Tx 4
#define INTERRUPT_CAN_c515c 17

//------------------------------------------------------------------
// Error codes 
// - see Chapter 14. 
//------------------------------------------------------------------

#define ERROR_SCH_TOO_MANY_TASKS (1)
#define ERROR_SCH_CANNOT_DELETE_TASK (2)

#define ERROR_SCH_WAITING_FOR_SLAVE_TO_ACK (3)
#define ERROR_SCH_WAITING_FOR_START_COMMAND_FROM_MASTER (3)

#define ERROR_SCH_ONE_OR_MORE_SLAVES_DID_NOT_START (4)
#define ERROR_SCH_LOST_SLAVE (5)

#define ERROR_SCH_CAN_BUS_ERROR (6)

#define ERROR_I2C_WRITE_BYTE (10)
#define ERROR_I2C_READ_BYTE (11)
#define ERROR_I2C_WRITE_BYTE_AT24C64 (12)
#define ERROR_I2C_READ_BYTE_AT24C64 (13)
#define ERROR_I2C_DS1621 (14)

#define ERROR_USART_TI (21)
#define ERROR_USART_WRITE_CHAR (22)

#define ERROR_SPI_EXCHANGE_BYTES_TIMEOUT (31)
#define ERROR_SPI_X25_TIMEOUT (32)
#define ERROR_SPI_MAX1110_TIMEOUT (33)

#define ERROR_ADC_MAX150_TIMEOUT (44)

#endif

/*------------------------------------------------------------------*-
  ---- END OF FILE -------------------------------------------------
-*------------------------------------------------------------------*/