Subversion Repositories de1_olpcl2294_system

//
//
//
 
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
 
#include <cyg/kernel/kapi.h>
 
#include "LPC22xx.h"
#include "lib_dbg_sh.h"
 
extern void dbg_sh(void);
 
 
/* now declare (and allocate space for) some kernel objects,
   like the two threads we will use */
cyg_thread thread_s[2];		/* space for two thread objects */
 
char stack[2][4096];		/* space for two 4K stacks */
 
/* now the handles for the threads */
cyg_handle_t dbg_shell_thread, simple_threadB;
 
/* and now variables for the procedure which is the thread */
cyg_thread_entry_t dbg_shell;
cyg_thread_entry_t simple_program;
 
/* and now a mutex to protect calls to the C library */
cyg_mutex_t cliblock;
 
/* we install our own startup routine which sets up threads */
void cyg_user_start(void)
{
//   printf("Entering twothreads' cyg_user_start() function\n");
 
  // enable cs3
  PINSEL2 = 0x0f814924;
 
  // configure BCFG3
  *((unsigned int *)0xFFE0000C) = 0x20007de7;
 
  // configure gpio
  *((unsigned int *)0x83200008) = 0x0003ffff;
  *((unsigned int *)0x83200008) = 0x00000003;
  *((unsigned int *)0x83200008) ^= 0x00000002;
 
 
  cyg_mutex_init(&cliblock);
 
  cyg_thread_create(4, dbg_shell, (cyg_addrword_t) 0,
		    "DBG Shell", (void *) stack[0], 4096,
		    &dbg_shell_thread, &thread_s[0]);
  cyg_thread_create(4, simple_program, (cyg_addrword_t) 1,
		    "Thread B", (void *) stack[1], 4096,
		    &simple_threadB, &thread_s[1]);
 
  cyg_thread_resume(dbg_shell_thread);
  cyg_thread_resume(simple_threadB);
}
 
/* this is a simple program which runs in a thread */
void dbg_shell(cyg_addrword_t data)
{
  int message = (int) data;
  int delay;
 
  printf("Beginning execution; thread data is %d\n", message);
 
  dbg_sh();
 
}
 
/* this is a simple program which runs in a thread */
void simple_program(cyg_addrword_t data)
{
 
  for (;;) {
 
    *((unsigned int *)0x83200008) ^= 0x00000001;
 
    cyg_thread_delay(200);
  }
}