现有一个项目要用Freescale的HC08JL8单片机，用C编程。第一次用CodeWarrior development studio编成环境(IDE vesion 5.7.0),使用New project wizard创建工程文件。

project.prm文件的内容为：

/* This is a linker parameter file for the JL8 */

NAMES END /* CodeWarrior will pass all the needed files to the linker by command line. But here you may add your own files too. */

SEGMENTS /* Here all RAM/ROM areas of the device are listed. Used in PLACEMENT below. */
    ROM                      =  READ_ONLY    0xDC00 TO 0xFBFF;
    Z_RAM                    =  READ_WRITE   0x0060 TO 0x00FF;
    RAM                      =  READ_WRITE   0x0100 TO 0x015F;
END

PLACEMENT /* Here all predefined and user segments are placed into the SEGMENTS defined above. */
    DEFAULT_RAM                         INTO  RAM;
    DEFAULT_ROM, ROM_VAR, STRINGS       INTO  ROM; /*  In case you want to use  as well, be sure the option -OnB=b is passed to the compiler. */
    _DATA_ZEROPAGE, MY_ZEROPAGE         INTO  Z_RAM;
END

STACKSIZE 0x30

VECTOR 0 _Startup /* Reset vector: this is the default entry point for an application. */

现在的问题是我定义了50个左右字节的全局变量，编译结果出错“Out of allocation space insegment RAM",我看了project.map,估计是变量全部分配在DEFAULT_RAM区域，请教如何可以将变量放在Z_RAM区域？

先谢了！