ni_sdo

Brief: Class for static digital output by NI PCI-6503 board.

This allows you to set up to 24 control bits grouped in 3 ports of 8 bits. In particular the bits will control functions of the stxm5 clock interface:

• Multiplexers and Tri-state buffer determine which lines or used for handshaking
• Clock divider devides motor clock pulses to have desired values

The pinouts of this detector are described in Table 8.3.

Public member functions:

• C++ constructor
  ni_sdo()
• C++ destructor
   ni_sdo()
• This routine needs to be called before you can write bites to output. It establishes contact whith the NI PCI-6503 board and configures the ports for output.
  int init_device(log_err *p_log_err)
• This basic routine lets you choose the state of all bits in a port
  int write_port(I16 sPortIndex,I32 lPortBits, log_err *p_log_err)
• This routine returns the value last written to the specified port.
  I32 port_value(I16 sPortIndex)
• Set an individual bit. BitIndex can go from 0 to (8*SDO_NUM_PORTS_USED-1)
  int set_bit(I16 sBitIndex, log_err *p_log_err)
• Clear an individual bit.
  int clear_bit(I16 sBitIndex, log_err *p_log_err)
• Return the value that was last written to an individual bit.
  I8 bit_value(I16 sBitIndex)