tsp_auto_test.c

tsp_test为ucos中tsp的测试代码。运行在2410的板子上

/*********************************************************************************************
* File：	tsp_auto_test.c
* Author:	embest
* Desc：	Touch Screen (Auto) Test
* History:	
*			R.X.Huang, Programming modify, March 12, 2005
*********************************************************************************************/
/*------------------------------------------------------------------------------------------*/
/*                                     include files	                                    */
/*------------------------------------------------------------------------------------------*/
#include <string.h>
#include "2410lib.h"
#include "tsp_auto_test.h"

/*------------------------------------------------------------------------------------------*/
/*                                     constants define	                                    */
/*------------------------------------------------------------------------------------------*/
#define ADCPRS 39

/*********************************************************************************************
* name:		tsp_auto_int
* func:		Touch screen interrupt handler (ADC auto)
* para:		none
* ret:		none
* modify:	R.X.Huang, March 12, 2005
* comment:		
*********************************************************************************************/
void tsp_auto_int(void)
{
    rINTSUBMSK |=  (BIT_SUB_ADC|BIT_SUB_TC);// Mask sub interrupt (ADC and TC) 

    // TC(Touch screen Control) Interrupt	
    if(rADCTSC&0x100)
    {
		uart_printf(" Stylus Up!!\n");
		rADCTSC &= 0xff;					// Set stylus down interrupt
   }
    else 
    {
		uart_printf(" Stylus Down!!\n");
		// <Auto X-Position and Y-Position Read>
		// Stylus Down,Don't care,Don't care,Don't care,Don't care,XP pullup Dis,Auto,No operation
		rADCTSC = (0<<8)|(1<<7)|(1<<6)|(0<<5)|(1<<4)|(1<<3)|(1<<2)|(0);
	
		rADCCON |=  0x1;					// Start Auto conversion
	
		while(rADCCON & 0x1);				// check if Enable_start is low
		while(!(0x8000&rADCCON));			// Check ECFLG
		
		uart_printf(" X-Posion[AIN5] is %04d\n", (0x3ff&rADCDAT0));
		uart_printf(" Y-Posion[AIN7] is %04d\n", (0x3ff&rADCDAT1));
		// Stylus Up,Don't care,Don't care,Don't care,Don't care,XP pullup En,Normal,Waiting mode
		rADCTSC = (1<<8)|(1<<7)|(1<<6)|(0<<5)|(1<<4)|(0<<3)|(0<<2)|(3);
   }
    rSUBSRCPND |=  BIT_SUB_TC;
    rINTSUBMSK = ~(BIT_SUB_TC);				// Unmask sub interrupt (TC)     
    ClearPending(BIT_ADC);
}
			
/*********************************************************************************************
* name:		tsp_auto_test
* func:		Touch screen interrupt handler (ADC auto)
* para:		none
* ret:		none
* modify:	R.X.Huang, March 12, 2005
* comment:		
*********************************************************************************************/
void tsp_auto_test(void)
{
    uart_printf(" Touch Screen (auto) Test Example.\n");
    uart_printf(" Auto 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,AIN5/7 fix,Normal,Disable read start,No operation
    rADCTSC = (0<<8)|(1<<7)|(1<<6)|(0<<5)|(1<<4)|(0<<3)|(0<<2)|(3);//tark
    // Down,YM:GND,YP:AIN5,XM:Hi-z,XP:AIN7,XP pullup En,Normal,Waiting for interrupt mode

    pISR_ADC = (unsigned)tsp_auto_int;
    rINTMSK &= ~(BIT_ADC);
    rINTSUBMSK &= ~(BIT_SUB_TC);

    uart_printf(" Type any key to exit!!!\n");
    uart_printf(" Stylus Down, please...... \n");
    uart_getch();

    rINTSUBMSK |=  BIT_SUB_TC;
    rINTMSK    |=  BIT_ADC;
    uart_printf(" end.\n");
}