main.c

#include <msp430.h>
#include <ctl.h>
#include <ARCbus.h>
#include <Error.h>
#include <terminal.h>       
#include <string.h>           // for memset function  
#include <UCA2_uart.h>        // UART setup 
#include "pins.h"             // linked in bare_bones solution 
#include "subsystem.h"        // linked in bare_bones solution 

extern sys_addr;

CTL_TASK_t terminal_task,sub_task,sys_task; // name your task (first thing to do when setting up a new task (1))

//********************************************* allocate mem for tasks (2)
//stack for terminal
unsigned terminal_stack[2000];
//stack for subsystem events
unsigned sys_stack[1000];
//stack for bus events
unsigned sub_stack[1000];

//******************************************** redefine putchar and getchar 
//make printf and friends use async
int __putchar(int c){
  return UCA2_TxChar(c);
}

//make printf and friends use async
int __getchar(void){
  return UCA2_Getc();
}

//******************************************* Example_Bare_bones main loop
void main(void){
  //DO this first
  ARC_setup();

  //turn on LED's this will flash the LED's during startup
  P7DIR=0xFF;
  //init complete turn on LED0 and all others off
  P7OUT=0x00;

  //TESTING: set log level to report everything by default
  set_error_level(0);

  //initialize UART
  UCA2_init_UART(UART_PORT,UART_TX_PIN_NUM,UART_RX_PIN_NUM);

  //BUS_register_cmd_callback(&IMG_parse);

  //setup bus interface
  initARCbus(sys_addr);   // Default addr for "SYS" subsystem, should be changed for specific subsystems.

   //setup command parse for LEDl
  BUS_register_cmd_callback(&SUB_parse);


  // initialize stacks (3) 
  memset(terminal_stack,0xcd,sizeof(terminal_stack));                                           //write known values into the stack 
  terminal_stack[0]=terminal_stack[sizeof(terminal_stack)/sizeof(terminal_stack[0])-1]=0xfeed;  //put marker values at the words before/after the stack
  memset(sys_stack,0xcd,sizeof(sys_stack));                                                     //write known values into the stack 
  sys_stack[0]=sys_stack[sizeof(sys_stack)/sizeof(sys_stack[0])-1]=0xfeed;                      //put marker values at the words before/after the stack
  memset(sub_stack,0xcd,sizeof(sub_stack));                                                     //write known values into the stack 
  sub_stack[0]=sub_stack[sizeof(sub_stack)/sizeof(sub_stack[0])-1]=0xfeed;                      //put marker values at the words before/after the stack


  // creating the tasks
  ctl_task_run(&terminal_task,BUS_PRI_LOW,terminal,"Example Bare Bones program ready","terminal",sizeof(terminal_stack)/sizeof(terminal_stack[0])-2,terminal_stack-1,0);
  ctl_task_run(&sys_task,BUS_PRI_NORMAL,sys_events,NULL,"SYS_events",sizeof(sys_stack)/sizeof(sys_stack[0])-2,sys_stack-1,0);
  ctl_task_run(&sub_task,BUS_PRI_HIGH,sub_events,NULL,"SUB_events",sizeof(sub_stack)/sizeof(sub_stack[0])-2,sub_stack-1,0);

  //main loop <-- this is an ARCbus function 
  mainLoop(); 

}

//decode errors
char *err_decode(char buf[150], unsigned short source,int err, unsigned short argument){
  sprintf(buf,"source = %i, error = %i, argument = %i",source,err,argument);
  return buf;
}