How to use ACC-28E board to read analog voltage in CPLC,thanks

[YOUNAG]

Why did the code copied in the manual fail to read the analog voltage value? Did something go wrong?

#include <gplib.h>
#include <stdio.h>
#include <dlfcn.h>
#include <RtGpShm.h>
//----------------------------------------------------------------------------------
// pp_proj.h is the C header for accessing PMAC Global, CSGlobal, Ptr vars
// _PPScriptMode_ for Pmac Script like access global & csglobal
// _EnumMode_ for Pmac enum data type checking on Set & Get global functions
//------------------------------------------------------------------------------------
#define _PPScriptMode_	// uncomment for Pmac Script type access
#define _EnumMode_			// uncomment for Pmac enum data type checking on Set & Get global functions		

#include "../../Include/pp_proj.h"

void user_plcc()
{
unsigned int MySecondIoICAdr = pshm->OffsetCardIO[9];
volatile unsigned int *MySecondIoRawADC1 = (unsigned int*)piom + MySecondIoICAdr / 4;
volatile unsigned int *MySecondIoRawADC2 = (unsigned int*)piom + MySecondIoICAdr / 4 + 1;
volatile unsigned int *MySecondIoRawADC3 = (unsigned int*)piom + MySecondIoICAdr / 4 + 2;
volatile unsigned int *MySecondIoRawADC4 = (unsigned int*)piom + MySecondIoICAdr / 4 + 3;
unsigned int MySecondIoADC1u = (*MySecondIoRawADC1 >> 16) & 0xFFFF;
unsigned int MySecondIoADC2u = (*MySecondIoRawADC2 >> 16) & 0xFFFF;
unsigned int MySecondIoADC3u = (*MySecondIoRawADC3 >> 16) & 0xFFFF;
unsigned int MySecondIoADC4u = (*MySecondIoRawADC4 >> 16) & 0xFFFF;
int MySecondIoADC1s = (*MySecondIoRawADC1 >> 16) - 32768;
int MySecondIoADC2s = (*MySecondIoRawADC2 >> 16) - 32768;
int MySecondIoADC3s = (*MySecondIoRawADC3 >> 16) - 32768;
int MySecondIoADC4s = (*MySecondIoRawADC4 >> 16) - 32768;
}

 

[YOUNAG]

thanks，

• The reason has been found，

• Because C code cannot be displayed in the window