Brain Imaging & Analysis Center

usage: r_pread opflg eflag ltime Databuf chan [ nchars flag]

    Read byte data from an external serial or parallel port. CHAN value 100 is
 printer parallel port, lower values are serial ports (1=COM1, 2=COM2, etc.). 
 NCHARS is the maximum number of bytes to read; if NCHARS is 0, all the bytes currently
 in the buffer are read.
 FLAG can be used to specify reading options (its default value is 0).

        FLAG options:
                        1 - wait until NCHARS characters have been read
                                otherwise reads current available data up to NCHARS bytes
                        2 - return current byte count only (don't read data)

  NOTE:  Serial input ports must be configured before being read.
                 To configure the port you should load the configuration bitflag into
                 the COM1 (or COM2) number variable (see COM1[4]).

See Also:

r_pwrite, CIGAL Home, CIGAL Manual, RealTime List, Manual Help