我的是出現 Coff file format for 'xxx.o' is out of date.
又是為什麼？

看16F630数据手册，里面关于EEPROM有这样一段话：

The Data EEPROM is a high-endurance, byte addressable
array that has been optimized for the storage of
frequently changing information (e.g., program
variables or other data that are updated often).
Frequently changing values will typically be updated
more often than specifications D120 or D120A. If this is
not the case, an array refresh must be performed. For
this reason, variables that change infrequently (such as
constants, IDs, calibration, etc.) should be stored in
FLASH program memory.
数据 EEPROM 是高耐久性、针对频繁变动信息（例如，
程序变量或其它经常更新的数据）的存储而优化的字节
寻址存储器阵列。通常，频繁变动值的更新频率应超过
D120或D120A中规定的参数值。如果并非如此，则必须
进行存储阵列刷新。为此，不经常变动的变量（如常
数、ID、校准值等）应存放在闪存程序存储器中。

是什么意思？
D120是字节擦写次数，更新频率应该是不超D120规定的参数值吧？
不经常变动的变量不能存放EEPROM上吗？
16F630不可以写FLASH吧