set_global_assignment -name IP_TOOL_NAME "ALTPLL"
set_global_assignment -name IP_TOOL_VERSION "13.1"
set_global_assignment -name VHDL_FILE [file join $::quartus(qip_path) "pll_ntsc.vhd"]
set_global_assignment -name MISC_FILE [file join $::quartus(qip_path) "pll_ntsc.cmp"]
set_global_assignment -name MISC_FILE [file join $::quartus(qip_path) "pll_ntsc.ppf"]