Need SPI core variant advice - Altera FPGA development kit '3-wire DAC'

--- Quote Start ---

I have successfully used SPI (3 Wire Serial) to drive slow ADCs and DACs with both NIOSII/C program and HPS/Linux.

depending on your dac type you can have different code. Mine was simple:

int DACSetVoltage(float V, int DACnr)
{
    int value = DACVoltage2Bit(V); // this is my function that converts float value to binary corresponding to DAC type and reference voltage used.
    alt_u8 array;
    array = value>>8;
    array = value & 0xff;
    return alt_avalon_spi_command(DAC_SPI_BASE, DACnr, 2, array, 0, 0, 0);
}

--- Quote End ---

Thanks, settem. Which core are you using, and if you don't mind, what is the DAC part number? I may be able to figure something out from that much.