f300_set_line
f300_set_line(dev, F300_RESET, 1);/* sent data over */
f300_set_line(dev, F300_DATA, 1);
f300_set_line(dev, F300_RESET, 0);/*ready...*/
f300_set_line(dev, F300_RESET, 1);/* received data over */
f300_set_line(dev, F300_DATA, 1);
f300_set_line(dev, F300_CLK, 0);
f300_set_line(dev, F300_DATA, (dta & 0x80) >> 7);/* msb first */
f300_set_line(dev, F300_CLK, 1);
f300_set_line(dev, F300_CLK, 0);
f300_set_line(dev, F300_CLK, 1);
f300_set_line(dev, F300_RESET, 1);
f300_set_line(dev, F300_CLK, 1);
f300_set_line(dev, F300_DATA, 1);
f300_set_line(dev, F300_RESET, 0);/* begin to send data */