Z-Stack Lighting 1.0.2的SamplleLight加入串口函数，编译出错

平台：CC2530F256 

 软件：Z-Stack Lighting 1.0.2

我想在  SamplleLight的Zlight Router中加入串口，对工程做了以下修改

SamplleLight工程中在Options->C/C++ Compiler加入了以下预编译

HAL_UART=TRUE
SERIAL_APP_PORT=1
ZTOOL_P2 

 在Z-Stack Lighting 1.0.2\Components\hal\target\CC2530PMP4712 中加入了_hal_uart_dma.c串口DMA相关函数

编译出错：Error[e104]: Failed to fit all segments into specified ranges. Problem discovered in segment XDATA_N. Unable to place 2 block(s) (0xc02 byte(s) total) in 0xa1e byte(s) of memory. The problem occurred while processing the segment placement command "-P(XDATA)XDATA_N=_XDATA_START-_XDATA_END", where at the moment of placement the available memory ranges were "XDATA:14e2-1eff"

什么意思啊？该怎么改啊

user1810729：

回复 VV:

ram开销过大！谢谢