target.c

程序展示了 ucos在EASYARM2200上的移植。并添加了多个设备在UCOS下的驱动UART:SPI:IIC:ZLG7290.当然还没有完全完成板上其它设备的驱动。由于限制

/****************************************Copyright (c)**************************************************
**                               Guangzou ZLG-MCU Development Co.,LTD.
**                                      graduate school
**                                 http://www.zlgmcu.com
**
**--------------File Info-------------------------------------------------------------------------------
** File name:			target.c
** Last modified Date:	2004-09-17
** Last Version:		1.0
** Descriptions:		header file of the specific codes for LPC2200 target boards
**						Every project should include a copy of this file, user may modify it as needed
**------------------------------------------------------------------------------------------------------
** Created by:			Chenmingji
** Created date:		2004-02-02
** Version:				1.0
** Descriptions:		The original version
**
**------------------------------------------------------------------------------------------------------
** Modified by:			Chenmingji
** Modified date:		2004-09-17
** Version:				1.01
** Descriptions:		Renewed the template, added more compiler supports 
**
**------------------------------------------------------------------------------------------------------
** Modified by: 
** Modified date:
** Version:	
** Descriptions: 
**
********************************************************************************************************/

#define IN_TARGET
#include "config.h"

/*********************************************************************************************************
** Function name:			IRQ_Exception
**
** Descriptions:			interrupt exceptional handler , change it as needed
**
** input parameters:		None
** Returned value:			None
**         
** Used global variables:	None
** Calling modules:			None
**
** Created by:				Chenmingji
** Created Date:			2004/02/02
**-------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/
void IRQ_Exception(void)
{
    while(1);                   //  change it to your code 这一句替换为自己的代码
}

/*********************************************************************************************************
** Function name:			FIQ_Exception
**
** Descriptions:			Fast interrupt exceptional handler , change it as needed
**
** input parameters:		None
** Returned value:			None
**         
** Used global variables:	None
** Calling modules:			None
**
** Created by:				Chenmingji
** Created Date:			2004/02/02
**-------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/
void FIQ_Exception(void)
{
    while(1);                   // change it to your code  这一句替换为自己的代码
}
/*********************************************************************************************************
** Function name:			Timer0_Exception
**
** Descriptions:			Timer0 interrupt service function
**
** input parameters:		None
** Returned value:			None
**         
** Used global variables:	None
** Calling modules:			None
**
** Created by:				Chenmingji
** Created Date:			2004/02/02
**-------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/
void Timer0_Exception(void)
{
    OS_ENTER_CRITICAL();
    VICIntEnClr = 1 << 4;
    VICVectAddr = 0;            // 通知中断控制器中断结束
    
    T0IR = 0x01;
    OSTimeTick();
    VICIntEnable = 1 << 4;
    OS_EXIT_CRITICAL();
}

/*********************************************************************************************************
** Function name:			Timer0Init
**
** Descriptions:			Initialize the Time0
**
** input parameters:		None
** Returned value:			None
**         
** Used global variables:	None
** Calling modules:			None
**
** Created by:				Chenmingji
** Created Date:			2004/02/02
**-------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/
void Timer0Init(void)
{
    T0IR = 0xffffffff;
    T0TC = 0;
    T0TCR = 0x01;
    T0MCR = 0x03;
    T0MR0 = (Fpclk / OS_TICKS_PER_SEC);
 }

/*********************************************************************************************************
** Function name:			VICInit
**
** Descriptions:			Initialize the Interrupt Vevtor Controller
**
** input parameters:		None
** Returned value:			None
**         
** Used global variables:	None
** Calling modules:			None
**
** Created by:				Chenmingji
** Created Date:			2004/02/02
**-------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/
void initVic(void)
{
	extern void IRQ_Handler(void);
	extern void Timer0_Handler(void);
	extern void Uart0_Handler(void);
   extern void ExternalINT1_Handler(void);
   extern void IIC_Handler(void);
   extern void SPI_Handler(void);
   
	VICIntEnClr = 0xffffffff;
	VICDefVectAddr = (uint32)IRQ_Handler;
	VICIntSelect = 0x00000000;                  // 设置所有通道为IRQ中断

	VICVectCntl0 = 0x24;                        // UART0中断通道分配到IRQ slot 0，即优先级最高
	VICVectAddr0=(uint32)Timer0_Handler;

	VICVectCntl1=0x26;
	VICVectAddr1 = (uint32)Uart0_Handler;       // 设置UART0向量地址
   
   
	VICVectCntl2=0x29;                          
	VICVectAddr2=(uint32)IIC_Handler;           //设置IIC向量地址
   
   VICVectCntl3=0x2F;            //外部中断1向量
   VICVectAddr3=(uint32)ExternalINT1_Handler;
   
   VICVectCntl4=0X20|10;
   VICVectAddr4=(uint32)SPI_Handler;
   
   VICIntEnable=(1<<INTINDEXTIMER0)|(1<<INTINDEXUART0)|(1<<INTINDEXINT1)|(1<<INTINDEXIIC)|(1<<INTINDEXSPI0);
	//VICIntEnable=(1<<INTINDEXTIMER0)|(1<<INTINDEXUART0)|(1<<INTINDEXIIC);
	VICVectAddr = 0x00;
 }
void initP0(void)
{
	/***
	功能分配
	P00   P01   P02   P03   P04     P05       P06	    P07	      P08
	TXD0  RXD0  SCL   SDA   SPICLK  SPIMISO   SPIMOSI	BEEPCON	  SPICS
	
	P04  P06  P08 用作普通IO模void hc595SendData(uint8 toSend)拟SPI时序操作 控制HC595
	***/
	/***
	PINSEL0                                                 1819
	位 76      54      32      10                           1  0
	值 01      01      01      01                             
	SDA        SCL     RXD0    TXD0                         PWM6
	***/
	/***首先将P0端口至于GPIO模式***/
	PINSEL0=0X00000000;
	PINSEL1=0X00000000;
	/******/
	/***确定管教的分配***/
	PINSEL0=(PINSEL0&0xFFFFFF00)|0x55|(0X00080000); // 设置串口0、I2C控制口有效\pwm6
	PINSEL0|=0X20000000;//P014连接外部中断1
	PINSEL1=0x01400000;// 设置P0.27、P0.28连接到AIN0、AIN1
	//确定方向控制，如果是功能管脚则方向自动，所以只针对GPIO	
	IO0DIR|=(1<<BEEPCON)|(1<<SPICLK) |(1<<SPIMOSI) |(1<<SPICS);
	
	IO0DIR|=(1<<BEEPCON);
	IO0SET=1<<BEEPCON|1<<7;//停止蜂鸣器	
}
/*********************************************************************************************************
** Function name:			TargetInit
**
** Descriptions:			Initialize the target board; it is called in a necessary place, change it as 
**							needed
**
** input parameters:		None
** Returned value:			None
**         
** Used global variables:	None
** Calling modules:			None
**
** Created by:				Chenmingji
** Created Date:			2004/02/02
**-------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/
void TargetInit(void)
{
	UARTMODE mode;
	EXTERNALINTERRUPTCONFIG cfg;
	
	OS_ENTER_CRITICAL();
	Timer0Init();
	cfg.mode=0x02;
	cfg.polar=0x00;
	cfg.wakeup=0x00;
	initExternalInterrupt(cfg);
	mode.datab = 8;                       /***8位数据位***/
	mode.stopb = 1;                       /***1位停止位***/
	mode.parity = 0;                     /***无奇偶校验***/
	initVic();
	initP0();
	initUart0(19200,mode);
	initIic(32000);
	initSpi(0x80);
	U0FCR = 0x81;                        /***使能FIFO，并设置触发点为8字节***/
   //U0IER = 0x01;                        /***允许RBR中断，即接收中断***/