这是一个数字时钟寄存器程序,我按照书上的程序输入到Quartus2 9中,编译通过了,但是在生成元器件时出现这个错误,Error (10017): Can't create symbol/include/instantiation/component file for entity "REG" because port "NEW_ALARM_TIME" has an unsupported type。Error (10017): Can't create symbol/include/instantiation/component file for entity "REG" because port "ALARM_TIME" has an unsupported type。以下是程序
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
PACKAGE P_ALARM IS
SUBTYPE T_DIGITAL IS INTEGER RANGE 0 TO 9;
SUBTYPE T_SHORT IS INTEGER RANGE 0 TO 65535;
TYPE T_CLOCK_TIME IS ARRAY (6 DOWNTO 0)OF T_DIGITAL;
TYPE T_DISPLAY IS ARRAY (6 DOWNTO 0)OF T_DIGITAL;
END PACKAGE P_ALARM;
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE WORK.P_ALARM.ALL;
ENTITY REG IS
PORT(NEW_ALARM_TIME:IN T_CLOCK_TIME;
LOAD_NEW_A:IN STD_LOGIC;
CLK:IN STD_LOGIC;
RESET:IN STD_LOGIC;
ALARM_TIME:OUT T_CLOCK_TIME);
END ENTITY REG;
ARCHITECTURE ART OF REG IS
BEGIN
PROCESS(CLK,RESET) IS
BEGIN
IF RESET='1' THEN
ALARM_TIME(0)<=0;
ALARM_TIME(1)<=0;
ALARM_TIME(2)<=0;
ALARM_TIME(3)<=0;
ALARM_TIME(4)<=0;
ALARM_TIME(5)<=0;
ELSE
IF RISING_EDGE(CLK) THEN
IF LOAD_NEW_A='1' THEN
ALARM_TIME<=NEW_ALARM_TIME;
END IF;
END IF;
END IF;
END PROCESS;
END ARCHITECTURE ART;