DAC33_MODE7_MARGIN
DAC33_THRREG(DAC33_MODE7_MARGIN));
if (dac33->uthr > (dac33->fifo_size - DAC33_MODE7_MARGIN))
dac33->uthr = dac33->fifo_size - DAC33_MODE7_MARGIN;
if (dac33->uthr < (DAC33_MODE7_MARGIN + 10))
dac33->uthr = (DAC33_MODE7_MARGIN + 10);
dac33->uthr - DAC33_MODE7_MARGIN + 1);
delay = DAC33_MODE7_MARGIN + samples_in - samples_out;
DAC33_THRREG(DAC33_MODE7_MARGIN));