tmperr.err

spi总线的vhdl代码

ERROR:Cpld:847 - Insufficient number of input pins.  This design needs at least
   16 but only 12 left after allocating other resources.
ERROR:Cpld:29 - Device XC2C64A-5-PC44 was disqualified.
ERROR:Cpld:30 - The design requires too many resources to fit in any of the
   specified devices.
ERROR:Cpld:868 - Cannot fit the design into any of the specified devices with
   the selected implementation options.