tcDspDac7616

Introduction

The tcDspDac7616 class is used to set up and send data to a BurrBrown DAC7616 Quad D-to-A converter. The converter is accessed via a McBSP interface.

See also:

MityDSP::tcDspDac7616 Class Reference

MityDSP::tcDspDacBaseMcBsp McBSP DAC Base Class Reference

Example

This is a simple example of tcDspDac7616 creation and usage:

 {
     // This class controls the MityDSP FPGA, and provides
     // register interfaces for CS control lines, etc.  This
     // class is generally specific to a MityDSP application.

     class tcFPGA : public tcDspOutputLatch
     {
         ...         

     public:

         typedef enum
         {
           ...
           eeDAC_CS,     
           eeDAC_LDAC,   
           ...
         } teOutputs;

         // This method manages the CS output latch for various devices
         int SetOuput(unsigned int ID, unsigned int Value);
        
         ...

     }

     int main (int argc, char *argv[])
     {

        tcFPGA     FPGA;
        tcDspMcbsp MCBSP(0x018C0000,
                         DATA_DELAY1,         // rx_data_delay
                         WORD_LENGTH_16,      // rx_word_len
                         RXJUST_RJZF,         // rx_justify
                         DATA_DELAY1,         // tx_data_delay
                         WORD_LENGTH_16,      // tx_word_len
                         FSYNC_MODE_EXT,      // rx_fsync
                         FSYNC_MODE_INT,      // tx_fsync
                         CLK_MODE_INT,        // rx_clock
                         CLK_MODE_INT,        // tx_clock
                         FSYNC_POL_HIGH,      // rx_fsync_polarity
                         FSYNC_POL_LOW,       // tx_fsync_polarity
                         CLKR_POL_FALLING,    // rx_clock_polarity 
                         CLKX_POL_FALLING,    // tx_clock_polarity
                         CSTOP_NODELAY);     // clock_stop
        

        tcDspDac7616 DAC(&MCBSP,&FPGA,tcFPGA::eeDAC_CS,tcFPGA::eeDAC_LDAC);

        ...

        // Set DAC A output to mid range...
        DAC.update(DAC_A_ADDRESS, 2048);

     } 
 
 }