main.c

硬件： PC机 1台 SeaARM2410教学实验开发平台 1台 软件： Windows 98/2000/XP操作系统 ADS 1.2集成开发环境

#include "S3C2410.h"
#include  "config.h"
#include  "UART.h"
#define LOOP 1
#define ADCPRS 39


void  IRQ_Eint11(void)
{
    int i;
    int Pt[6];
    rINTSUBMSK |=(BIT_SUB_TC); //TC interrupt request can be serviced.
    rINTMSK    |= (BIT_ADC);
    
    //rINTSUBMSK |= (BIT_SUB_ADC|BIT_SUB_TC); // Mask sub interrupt (ADC and TC) 


     if(rADCTSC & 0x100)
    {
        Uart_Printf("\nStylus Up!!\n");
        rADCTSC &= 0xff;    // Set stylus down interrupt
    }
    else 
    {
      Uart_Printf("\nStylus Down!!\n");
           
          // <X-Position Read>
        rADCTSC=(0<<8)|(0<<7)|(1<<6)|(1<<5)|(0<<4)|(1<<3)|(0<<2)|(1);
          // Down,Hi-Z,AIN5,GND,Ext vlt,Pullup Dis,Normal,X-position
        for(i=0;i<LOOP;i++);            //delay to set up the next channel
        for(i=0;i<5;i++)
        {
            rADCCON|=0x1;               // Start X-position conversion
            while(rADCCON & 0x1);       // Check if Enable_start is low
            while(!(0x8000&rADCCON));   // Check ECFLG
            Pt[i]=(0x3ff&rADCDAT0);
        }
        Pt[5]=(Pt[0]+Pt[1]+Pt[2]+Pt[3]+Pt[4])/5;
      Uart_Printf("X-Posion[AIN5] is %04d\n", Pt[5]);

          // <Y-Position Read>
        rADCTSC=(0<<8)|(1<<7)|(0<<6)|(0<<5)|(1<<4)|(1<<3)|(0<<2)|(2);
          // Down,GND,Ext vlt,Hi-Z,AIN7,Pullup Dis,Normal,Y-position
        for(i=0;i<LOOP;i++);            //delay to set up the next channel
        for(i=0;i<5;i++)
        {
            rADCCON|=0x1;               // Start X-position conversion
            while(rADCCON & 0x1);       // Check if Enable_start is low
            while(!(0x8000&rADCCON));   // Check ECFLG
            Pt[i]=(0x3ff&rADCDAT1);
        }
        Pt[5]=(Pt[0]+Pt[1]+Pt[2]+Pt[3]+Pt[4])/5;
       Uart_Printf("Y-Posion[AIN7] is %04d\n", Pt[5]);
        rADCTSC=(1<<8)|(1<<7)|(1<<6)|(0<<5)|(1<<4)|(0<<3)|(0<<2)|(3);
          // Up,GND,AIN,Hi-z,AIN,Pullup En,Normal,Waiting mode
    }

   
    rSUBSRCPND=BIT_SUB_TC;
    rSRCPND = BIT_ADC;
	rINTPND = rINTPND;
    rINTSUBMSK =~(BIT_SUB_TC); //TC interrupt request can be serviced.
    rINTMSK    = ~(BIT_ADC);
}
            

void Ts_Sep(void)
{

   Uart_Printf("[Touch Screen Test.]\n");
   Uart_Printf("Separate X/Y position conversion mode test\n");

    rADCDLY = (50000);  // ADC Start or Interval Delay

    rADCCON = (1<<14)|(ADCPRS<<6)|(0<<3)|(0<<2)|(0<<1)|(0);
      // Enable Prescaler,Prescaler,AIN7/5 fix,Normal,Disable read start,No operation
    rADCTSC = (0<<8)|(1<<7)|(1<<6)|(0<<5)|(1<<4)|(0<<3)|(0<<2)|(3);
      // Down,YM:GND,YP:AIN5,XM:Hi-z,XP:AIN7,XP pullup En,Normal,Waiting for interrupt mode

   // pISR_ADC   = (unsigned)Adc_or_TsSep;
    rINTSUBMSK =~(BIT_SUB_TC); //TC interrupt request can be serviced.  
    rINTMSK    =~(BIT_ADC);  //ADC interrup Sevice available.
     
   

    Uart_Printf("\nType any key to exit!!!\n");
   Uart_Printf("\nStylus Down, please...... \n");
  
    
  Uart_Getch();
  
    rINTSUBMSK |=(BIT_SUB_TC); //TC interrupt request can be serviced.
    rINTMSK    |= (BIT_ADC);
    


   
    Uart_Printf("[Touch Screen Test.]\n");
}
void main(void)
{
    volatile unsigned i;
    Uart_Init1(0,115200);
 // UART_Init(); 
    UART_Select(0);
    
    // 设置nYPCON、YMON、nXPCON、XMON引脚连接
    rGPGUP = rGPGUP | 0xF000;
	rGPGCON = rGPGCON | 0xFF000000;
	

  //  rINTMSK = 0xFFFFFFFF;		// 禁止所有中断 (中断控制器)

//	rINTSUBMSK = BIT_SUB_ALLMSK;
	
//	rSRCPND = 0xFFFFFFFF;		// 清除中断(源)标志
	
//	rSUBSRCPND=0x7FF;
	
//	rINTPND = 0xFFFFFFFF;		// 清除IRQ中断标志	

    VICVectAddr[31]= (uint32)IRQ_Eint11;
    rPRIORITY = 0x00000000;	    // 使用默认的固定的优先级
	rINTMOD = 0x00000000;	    // 所有中断均为IRQ中断
	
   IRQEnable();
    while(1)
    {
		Ts_Sep();
    }
}