ad.c

32位arm9微处理器S3C2410的ad模数转换测试源代码

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

//Shin, On Pil
#include "def.h"
#include "option.h"
#include "2410addr.h"
#include "2410lib.h"
#include "2410slib.h"

#include "2410etc.h"
#include "2410IIC.h"
#include "2410iis.h"
#include "2410int.h"
#include "2410RTC.h"
#include "2410swi.h"
//#include "cpuspeed.h"
//#include "lcdpwr.h"
#include "timer.h"

//Kang, Weon Tark
#include "adc.h"
#include "dma.h"
#include "dma2.h"
#include "eint.h"
#include "extdma.h"
#include "k9s1208.h"
#include "mmu.h"
#include "nwait.h"
#include "sdi.h"
#include "stone.h"
#include "ts_auto.h"
#include "ts_sep.h"
#include "usbfifo.h"

//Shin, Jeong Seuk
#include "IrDA.h"
#include "lcd.h"
#include "lcdlib.h"
#include "glib.h"
#include "palette.h"
#include "spi.h"
#include "uart0.h"
#include "uart1.h"
#include "uart2.h"

//Kong, In Wook
#include "etc.h"
#include "flash.h"
#include "idle.h"
#include "pd6710.h"
#include "pll.h"
#include "power.h"
#include "pwr_c.h"
#include "stop.h"
Timer_TOUT1()
{
	 int save_B,save_G,save_H,save_PB,save_PG,save_PH,save_MI;
    char key;
    save_B  = rGPBCON;
    save_G  = rGPGCON;
    save_H  = rGPHCON;    
    save_PB = rGPBUP;
    save_PG = rGPGUP;
    save_PH = rGPHUP;
    save_MI = rMISCCR;   
    
    rGPBUP  = rGPBUP  & ~(0x1f)     | 0x1f;         //GPB4 ~ 0
    rGPBCON = rGPBCON & ~(0x3ff)    | 0x2aa;        //Function Setting TCLK0, TOUT3 ~ 0   
    rGPGUP  = rGPGUP  & ~(0x800)    | 0x800;        //GPG11
    rGPGCON = rGPGCON & ~(0xc00000) | 0xc00000;     //TCLK1
    rGPHUP  = rGPHUP  & ~(0x200)    | 0x200;        //GPH9
    rGPHCON = rGPHCON & ~(0x3<<18)  | (0x2<<18);    //CLKOUT0    
    rMISCCR = rMISCCR & ~(0xf0)     | 0x40;         //Select PCLK with CLKOUT0
    rTCFG0 = rTCFG0 & ~(0xffffff) | 0x10000;                 //Dead zone=1,Prescaler1=0,Prescaler0=0
 rTCFG0 = rTCFG0 & ~(0xffffff) | 0x44401;         //Dead zone=4,Prescaler1=68(0x44),Prescaler0=68(0x44)
//            Uart_Printf("rTCFG0 = 0x%6x   <= Timer configuration register0.\n",rTCFG0);            
            Uart_Printf("External TOUT[0,1,2,3] Check Selected\n");            
//            Uart_Printf("Probing TCLK 0 : U16 - 14\n");
//            Uart_Printf("Probing TCLK 1 : S4  -  1\n");
// rTCFG1 = rTCFG1 & ~(0xffffff) | 0x44444;         //Dead zone=4,Prescaler1=68(0x44),Prescaler0=68(0x44)

 rTCNTB0 = rTCNTB0 & ~(0xffff) | 2000;       //(1/(50MHz/69/2))  *  2000 =  5.5200 msec (181.159  Hz)
                                                //(1/(50.7MHz/69/2))*  2000 =  5.4437 msec (183.698  Hz)
                                                //(1/(50MHz/1/2))   *  2000 =  0.0800 msec ( 12.500 KHz)
                                                //(1/(50.7MHz/1/2)) *  2000 =  0.0788 msec ( 12.690 KHz)
//    rTCNTB1 = rTCNTB1 & ~(0xffff) | 4000;       //(0.0000027600003) *  4000 = 11.0400 msec ( 90.579  Hz)
                                                //(0.0000027218935) *  4000 = 10.8875 msec ( 91.848  Hz)
                                                //(0.00000004)      *  4000 =  0.1600 msec (  6.250 KHz)
                                                //(0.0000000394477) *  4000 =  0.1577 msec (  6.337 KHz)
	rTCNTB1 = rTCNTB1 & ~(0xffff) | 2;                                                
    rTCNTB2 = rTCNTB2 & ~(0xffff) | 5000;       //(0.0000027600003) *  5000 = 13.8000 msec ( 72.463  Hz)
                                                //(0.0000027218935) *  5000 = 13.6094 msec ( 73.478  Hz)
                                                //(0.00000004)      *  5000 =  0.2000 msec (  5.000 KHz)
                                                //(0.0000000394477) *  5000 =  0.1972 msec (  5.070 KHz)
    rTCNTB3 = rTCNTB2 & ~(0xffff) | 10000;      //(0.0000027600003) * 10000 = 27.6000 msec ( 36.231  Hz)
                                                //(0.0000027218935) * 10000 = 27.2189 msec ( 36.739  Hz)
                                                //(0.00000004)      * 10000 =  0.4000 msec (  2.500 KHz)
                                                //(0.0000000394477) * 10000 =  0.3944 msec (  2.535 KHz)
     rTCMPB0 =  2000 - 1000;      //(H/L)duty 50%
//    rTCMPB1 =  4000 - 2000;
	rTCMPB1 = 1;
    rTCMPB2 =  5000 - 2500;
    rTCMPB3 = 10000 - 5000;

//    Uart_Printf("rTCMPB0 = %d   <= Timer 0 compare buffer register.\n",rTCMPB0);
//    Uart_Printf("rTCON  = 0x%6x (Before)  <= Timer control register.\n",rTCON); 

     // [22:20] [19:16] [15:12] [11:8] [7:4] [3:0]
     //   110     1010   1010    1010   0000  1010
    rTCON   = rTCON & ~(0xffffff) | 0x6aaa0a;  //Auto reload, Inverter off, Manual update, Stop, Dead zone disable
 rTCON   = rTCON & ~(0xffffff) | 0x599909;  //Auto reload, Inverter off, No operation, Start, Dead zone disable

//    Uart_Printf("rTCON  = 0x%6x (After)   <= Timer control register.(0x599909)\n\n",rTCON);
    
}

void Test_Ad()
{
	int isBusy,pData,ADdata;
	volatile int * nWR;
	float r;
	Timer_TOUT1();
	rGPFCON = rGPFCON&0xfffff3ff; //10-11 bit = 'b00
	rGPFUP = 0xffff;
	nWR=(volatile int*)(0x28500000);  //AD片选地址

	while(1)
	{
				     
		*nWR=0x00000000;	
		ADdata=*nWR;	
		//读BUSY信号，从Eint5获得
		do{
		//		Uart_Printf("GPFDAT =0x%x\n",rGPFDAT);
			pData=rGPFDAT;         //busy信号所在io口
			isBusy=(pData>>5)&0x1;
		}while(isBusy==1);	
	
		do{
//			Uart_Printf("GPFDAT =0x%x\n",rGPFDAT);
			pData=rGPFDAT;         //busy信号所在io口
			isBusy=(pData>>5)&0x1;
		}while(isBusy==0);
		
		ADdata=*nWR;
		ADdata=ADdata&(0x0fff);
		
		r = ((float)(ADdata))/((float)(0xfff))*5.0*100000;
		Uart_Printf("%6d/100000\n",(int)(r));		
//		r = ((float)ADdata/(float)(0xfff))*5.0;
//		Uart_Printf("%f\n",r);		


	}
}