在84789的data flash中定义变量的问题：

[jero17]

以const 前缀定义了一个word数组和几个不同类型的单个变量，并禁止ram copy。由于使用小数据模式，编译中加入了-largeAddrInSdm选项。编译后，map文件可见word数组，但是单个变量不知所踪。

Original Attachment has been moved to: CAN84789.rar

[TICS_Fiona]

Hello Jun

56800E(X) linker removes unused code and data from the output file. This process is called deadstripping. To avoid this behavior of linker, you may use the keywords “FORCE_ACTIVE”, “KEEP_SECTION” in lcf file to preserve the data.

For details, please refer to section < 4.9 Deadstripping and Link Order>, <7.2.4 Deadstrip Prevention> in <7.3.5 FORCE_ACTIVE>:

C:\Freescale\CW MCU v10.6.4\MCU\Help\PDF\MCU_DSC_Compiler.pdf

In your project, to disable the deadstripping for variable ‘EdataFlt’ and ‘EdataEnd’, please:

1)  After building project successfully, open CPU Component Inspector, disable link file generation.

2)  Add the FORCE_ACTIVE directive in the link command file for your variables.

In addition, for the questions on software tools, please post on CodeWarrior forum:

CodeWarrior Development Tools

Thanks!

Best Regards

Fiona Kuang

TIC - Technical Information Center

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