main.c

在Embest EduKit-II教学系统移植的uCOS-II v2.76

/*********************************************************************************************
* File：	main.c
* Author:	embest
* Desc：	c main entry
* History:	
*********************************************************************************************/
#include "includes.h"              						// uC/OS interface
#include "def.h"
#include "44b.h"
#include "44blib.h"
#include "lcd.h"

/*------------------------------------------------------------------------------------------*/
/*	 								global variables					 				    */
/*------------------------------------------------------------------------------------------*/
#define STACKSIZE 512										//Task definition

/*------------------------------------------------------------------------------------------*/
/*	 								extern variables					 				    */
/*------------------------------------------------------------------------------------------*/
extern const UINT8T g_ucBitmap[][76800];

/*------------------------------------------------------------------------------------------*/
/*	 								global variables					 				    */
/*------------------------------------------------------------------------------------------*/
unsigned int Stack1[STACKSIZE];
unsigned int Stack2[STACKSIZE];
unsigned int Stack3[STACKSIZE];
unsigned int StackMain[STACKSIZE];

OS_EVENT*		f_UartSem;
unsigned char 	f_ucErr;

char f_szDigital[10] ={0xFC,0x60,0xDA,0xF2,0x66,0xB6,0xBE,0xE0,0xFE,0xF6};

/*------------------------------------------------------------------------------------------*/
/*	 								extern function					 				    	*/
/*------------------------------------------------------------------------------------------*/
extern void TickHandler(void);

/*------------------------------------------------------------------------------------------*/
/*	 								function declare					 				    */
/*------------------------------------------------------------------------------------------*/
void target_init(void);
void target_start(void);

/*********************************************************************************************
* name:		task1
* func:		led on/off task
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void task1(void *Id)
{
    // print task's id
    OSSemPend(f_UartSem, 0, &f_ucErr);
    uart_printf("Task%c Called.\n", *(char *)Id);
    OSSemPost(f_UartSem);

	while(1)
	{
		led1_on();
		led2_on();
		OSTimeDly(100);
		led1_off();
		led2_off();
		OSTimeDly(100);
	}
}

/*********************************************************************************************
* name:		task2
* func:		led8 display task
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void task2 (void *Id)
{
	int i, j, k;

    // print task's id
    OSSemPend(f_UartSem, 0, &f_ucErr);
    uart_printf("Task%c Called.\n", *(char *)Id);
    OSSemPost(f_UartSem);

    while(1)
    {
		for(j=0; j<10; j++)
		{
			for(i=0; i<8; i++)
			{
				k = 9-(i+j)%10;
				iic_write(0x70, 0x10+i, f_szDigital[k]);
			}
			OSTimeDly(200);
		}
	}
}

/*********************************************************************************************
* name:		task3
* func:		led on/off task
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void task3 (void *Id)
{
	int i;

    // print task's id
    OSSemPend(f_UartSem, 0, &f_ucErr);
    uart_printf("Task%c Called.\n", *(char *)Id);
    OSSemPost(f_UartSem);

	i = 0;
    while(1)
    {
		bitmap_view320x240x256((UINT8T*)(g_ucBitmap[i]));
		OSTimeDly(800);
		i++;
		if(i>4) i=0;
	}
}

/*********************************************************************************************
* name:		TaskStart
* func:		
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void TaskStart (void *i)
{

     char Id1 = '1';
     char Id2 = '2';
     char Id3 = '3';
     
    /* 
     * create the first Semaphore in the pipeline with 1 
     * to get the task started.
     */
     f_UartSem = OSSemCreate(1);
     
     /*
     * create the tasks in uC/OS and assign decreasing
     * priority to them
     */
     OSTaskCreate(task1, (void *)&Id1, &Stack1[STACKSIZE - 1], 2);
     OSTaskCreate(task2, (void *)&Id2, &Stack2[STACKSIZE - 1], 3);
     OSTaskCreate(task3, (void *)&Id3, &Stack3[STACKSIZE - 1], 4);
    
   	 target_start();
     
     OSTaskDel(OS_PRIO_SELF);// Delete current task
}

/*********************************************************************************************
* name:		main
* func:		c code entry
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void Main(void)//int argc, char **argv
{
	char Id0 = '4';
	target_init();

	/* needed by uC/OS */
	OSInit();
	
	OSTimeSet(0);
	
	/* create the start task */
	OSTaskCreate(TaskStart, (void *)0, &StackMain[STACKSIZE - 1], 0);

	/* start the operating system */
	OSStart();
}                              

/*********************************************************************************************
* name:		target_init
* func:		Initialize an ARM Target board
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void target_init(void)
{
    sys_init();        								// Initial 44B0X's Interrupt,Port and UART

	uart_printf("\n*==================================*\n"); 
    uart_printf("*=  深圳市英蓓特信息技术有限公司  =*\n"); 
    uart_printf("*==================================*\n"); 
    uart_printf("*========== 产品研发中心 ==========*\n"); 
 	uart_printf("*=======  86-755-25631365  ========*\n"); 
    uart_printf("*===== [e-mail] ======*\n"); 
    uart_printf("*===       OS Version:%d       ===*\n",OSVersion()); 
	uart_printf("\n*==================================*\n"); 
	uart_printf(" uCOS-II Running... \n") ;

    uhal_init_interrupts();
    uhal_init_timers();
}                               /* targetInit */

/*********************************************************************************************
* name:		target_start
* func:		start the ARM target running
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void target_start(void)
{
    uhal_register_irq(HandlerTIMER0, (void *)TickHandler);
    uhal_enable_int(BIT_TIMER0 | BIT_IIC);
    iic_init();
    lcd_init();
}

void Timer0Interrupt()
{
	rI_ISPC = BIT_TIMER0;
	OSTimeTick();
}