Module: RbVisa::VISA

Extended by:

FFI::Library

Defined in:

lib/rb_visa/visa.rb,
lib/rb_visa/visa/template.rb

Constant Summary

VI_NULL =

0

VI_FALSE =

0

VI_TRUE =

1

VI_READ_BUF =

buffer settings

1

VI_WRITE_BUF =

2

VI_READ_BUF_DISCARD =

4

VI_WRITE_BUF_DISCARD =

8

VI_ASRL_IN_BUF =

VI_IO_IN_BUF

16

VI_ASRL_OUT_BUF =

VI_IO_out_BUF

32

VI_ASRL_IN_BUF_DISCARD =

VI_IO_IN_BUF_DISCARD

64

VI_ASRL_OUT_BUF_DISCARD =

VI_IO_OUT_BUF_DISCARD

128

Buffer =

{
  read:     VI_READ_BUF,
  write:    VI_WRITE_BUF,
  asrl_in:  VI_ASRL_IN_BUF,
  asrl_out: VI_ASRL_OUT_BUF,
}

VI_ATTR_TMO_VALUE =

other attributes

"3fff001a".hex

VI_TMO_INFINITE =

"FFFFFFFF".hex

Template =

[   
  [ :viOpenDefaultRM,
    [ :pointer],        # :uint32* which stores the ressource manager handle
    :int32],
  
  [ :viOpen, 
    [ :uint32,          # ressource manager handle
      :pointer,         # device address
      :uint32,          # access mode
      :uint32,          # timeout
      :pointer],        # :uint32* which stores the session handle  
    :int32],     

  [ :viClose, 
    [:uint32],          # session/ressource manager handle
    :int32],    
  
  [ :viClear, 
    [:uint32],          # session/ressource manager handle
    :int32],  
    
  [ :viStatusDesc,
    [ :uint32,          # session handle
      :int32,           # status code
      :pointer],        # char* output description of the status code
    :int32],  
                      
  [ :viSetAttribute,
    [ :uint32,          # session handle
      :uint32,          # attribute name
      :uint32],         # attribute state (can be 64bits, need to check !)
    :int32], 

  [ :viGetAttribute,
    [ :uint32,          # session handle
      :uint32,          # attribute name
      :pointer],        # uint32* attribute state outpout (can be 64bits, need to check !)
    :int32], 
              
  [ :viSetBuf,
    [ :uint32,          # session handle
      :uint16,          # mask
      :uint32],         # size
    :int32],
    
  [ :viWrite,
    [ :uint32,          # session handle
      :pointer,         # uint8*  buffer for input data
      :uint32,          # buffer size
      :pointer],        # uint32* which stores the number of bytes written to the device
    :int32],
 
  [ :viRead,
    [ :uint32,          # session handle
      :pointer,         # char* pointer to output buffer
      :uint32,          # number of bytes to read
      :pointer],        # uint32* which stores the number of bytes written to the buffer   
    :int32],         

  [ :viBufRead,
    [ :uint32,          # session handle
      :pointer,         # char* pointer to output buffer
      :uint32,          # number of bytes to read
      :pointer],        # uint32* which stores the number of bytes written to the buffer   
    :int32],   
            
  [ :viFlush,
    [ :uint32,          # session handle
      :uint16],         # mask
    :int32],
]