在我下载pof文件时出现：
Info: Ended Programmer operation at Thu Feb 23 15:49:07 2006
Info: Started Programmer operation at Thu Feb 23 15:49:11 2006
Info: Device 1 contains JTAG ID code 0x020A30DD
Info: Device 1 silicon ID is ALTERA04-0
Error: Operation failed
Info: Ended Programmer operation at Thu Feb 23 15:49:11 2006
不知道哪里除了错：） | 
