HP (Hewlett-Packard) 9112 Series ユーザーズマニュアル

 

u  Syntax 

Visual C++ (Window s-95) 

int W_9112_AD_Set_Mode (int card_number, int ad_mode) 
 

Visual Basic (Windows-95) 

W_9112_AD_Set_Mode (ByVal card_number As Long, ByVal ad_mode As 
Long) As Long 
 

C/C++ ( DOS) 

int _9112_AD_Set_Mode (int card_number, int ad_mode )  

u  Argument 

card_number :  the card number of PCI-9112  
ad_mode :  

AD trigger and data transfer mode 

 

                         ( please refer to above table.) 

u  Return Code 

ERR_NoError 
ERR_BoardNoInit 
ERR_InvalidMode 

u  Example 

#include  “9112.h” 

main() 
{ 
  Int   baseAddr, irqNo; 
 
  _9112_Initial( CARD_1, &baseAddr, &irqNo);  
  /* Assume NoError when Initialize PCI-9112 */ 
 
  _9112_AD_Set_Range(CARD_1, AD_B_5_V ); 
  printf( "The A/D analog input range is +/- 5V \n" ); 
 
  _9112_AD_Set_Mode(CARD_1, AD_MODE_4 ); 
  printf( "Now, The Internal Timer Pacer trigger is set \n" ); 

 
  /* All A/D conversion will be trigger by internal timer pacer,  
and the converted data should be transfered in the interrupt 
service routine. ( ISR). */ 
} 

5.11  _9112_AD_Set_Autoscan 

u  Description 

This function is used to set  automatic hardware channel scan  to be 
enable or disable. If the PCI-9112 is set as enable mode, then the A/D 
channel can be converted automatically, that is, the hardware will 
automatically decrement until channel 0.  Then, it will go back to channel 
which is set by _9112_AD_Set_Channle and wrap back to zero again.  
For example, the channel is set as 4, the A/D conversion sequence will be