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Download Sun Microsystems EDT S16A User's Manual
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S16A User’s Guide Input and Output s16a_set_dac_control_reg Description Write a specified value to the output DAC Control register. Syntax int s16a_set_dac_control_reg(S16aDev *s16a_p, int value); Arguments s16a_p S16A device handle returned from s16a_open value Value to write to the DAC Control register. Return Returns 0 on success or –1 on failure. Fails if s16a_p does not refer to an output channel. Sets errno on failure. s16a_set_defaults Description Resets the S16A configuration to its default state: • The Xilinx Programming registers are set to S16A_XRESET and then cleared. • The UART Command/Status register and the DAC Output Control register are set to 0. • Gain and offset values are set from /dev/s16a.cfg, which is generated when you run s16acalibrate. • Ring buffer mode is disabled and driver- or library-allocated ring buffers are released. Syntax int s16a_set_defaults(S16aDev *s16a_p); Arguments s16a_p S16A device handle returned from s16a_open Return Return value from ioctl call to driver: 0 on success; –1 on error. If an error occurs, check the errno global variable for the error number. EDT, Inc. October, 1996 17
