main.c

周立功2103开发板CD资料

/****************************************Copyright (c)**************************************************
**                               Guangzhou ZHIYUAN electronics Co.,LTD.
**                                 http://www.zyinside.com
**
**--------------File Info-------------------------------------------------------------------------------
** File name:           main.c
** Last modified Date:  2006-02-22
** 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
**------------------------------------------------------------------------------------------------------
** Modified by: 
** Modified date:
** Version: 
** Descriptions: 
**
********************************************************************************************************/

#define IN_MAIN
#include "config.h"
#include <stdio.h>
#include "uart.h"
#include "ADC.h"

#pragma import(__use_no_semihosting_swi)        //don't delete this line
/*********************************************************************************************************
** Function name:			IRQ_Exception
**
** Descriptions:			interrupt exceptional handler , change it as needed
**                          don't delete this function 
** input parameters:		None
** Returned value:			None
**         
**
** Created by:				Chenmingji
** Created Date:			2006/02/22
**-------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
**------------------------------------------------------------------------------------------------------
********************************************************************************************************/
void  IRQ_Exception(void)
{
}


/*********************************************************************************************************
**函数名称：PC_DispChar( )
**函数功能：向PC机发送显示字符
**入口参数：x      显示位置X坐标
**          y      显示位置Y坐标
            char   显示的字符，不能为0xff
            color  显示的颜色
**出口参数：无
********************************************************************************************************/
void PC_DispChar(uint8 x, uint8 y, uint8 chr, uint8 color)
{
    UARTn_SendByte(0, 0xFF);       //帧头
    UARTn_SendByte(0, x);
    UARTn_SendByte(0, y);
    UARTn_SendByte(0, chr);
    UARTn_SendByte(0, color);
}


/*********************************************************************************************************
**函数名称：ISendStr( )
**函数功能：向PC机发送字符串
**入口参数：x      字符串显示起始位置X坐标
**          y      字符串显示起始位置Y坐标
            color  显示的颜色
            *str   要显示的字符串
**出口参数：无
********************************************************************************************************/
void ISendStr(uint8 x, uint8 y, uint8 color, char *str)
{
    while(1)
    {
        if(*str == '\0')  break;
        PC_DispChar(x, y, *str, color);
        x++;
        str++;
        if(x>= 80)
        {
            x= 0;
            y++; 
             
        }
    }
}



/*********************************************************************************************************
**函数名称：ADC_ISR( )
**函数功能：ADC转换结束中断服务函数。读取通道0的值并发送到PC机显示出来
**入口参数：无
**出口参数：无
********************************************************************************************************/
void ADC_ISR(void)
{
    char str[20];
    uint32 val;
    val = (AD0DR0 >>6) & 0x3ff;       //读取通道0的结果   
    val = (val * 3300)/1024;		  // ADC的参考电压为3300mV
    sprintf(str,"%4d mV VIN0", val);  //格式化显示数据
    ISendStr(0,0,0x30,str);			  //将数据发送到PC机显示 
    AD0STAT &= (~(1<<16)); 
    VICVectAddr = 0;    
}

/*********************************************************************************************************
** Function name:           Main
**
** Descriptions:            利用P0.16脚下降沿触发AD转换。中断方式读取转换结果并发送到PC机显示出来
**
********************************************************************************************************/
void Main(void)
{
    TargetInit(VPBDIV_DATA, PLLCFG_DATA, MAMTIM_DATA);      // don't delete
    while((PLLSTAT & (1 << 10)) == 0);                      // can delete
    
    PINSEL1 = 0x00;              //P0.16选择GPIO

	//其他测试情形 
    //PINSEL1 = 0x01;			 //P0.16选择EINT0
    IO0DIR = 0;
    
    					  
    
    
    ADC_InitToSW(0,3000000,2,0); //ADC 初始化：通道0，AD转换频率预设3MHz（实际值可能有误差），P0.16脚下降沿触发AD转换
    
    UARTn_Init(0,115200,8,1,0,0); //串口0初始化：115200bps，8位数据，1位停止位，无校验，禁止中断
    SetADnIntEn(0);				 //使能通道0 AD中断
    
    SetISR(18,0, (unsigned int)ADC_ISR);  //指定中断函数和中断优先级
    IRQEnable();  //打开IRQ中断
    while(1);


    
}


/*********************************************************************************************************
**                            End Of File
********************************************************************************************************/