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Keil 调试ARM时出现的 *** error 65: access violation at xxxx

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2016-06-07 15:37:273323browse

实验用soc:s3c2440 分析原因:内存访问权限错误 解决办法: 1. 调试 开始后使用map命令进行分段更改内存访问权限 例如 调试 小程序时,仅在0~4kB范围内寻址时, 出现 : *** error 65: access violation at 0x00000FFC : no 'write' permission *** error 6

实验用soc:s3c2440

分析原因:内存访问权限错误

解决办法:

1.调试开始后使用map命令进行分段更改内存访问权限

例如调试小程序时,仅在0~4kB范围内寻址时,出现

*** error 65: access violation at 0x00000FFC : no 'write' permission

*** error 65: access violation at 0x000000B4 : no 'write' permission

...

等错误

在command窗口输入

map 0,4095 read write exec

回车,PC复位,Go,即可解决问题。

更多解释:

map命令更改内存访问权限只能对16MB以内的区域进行设定

使用规则如下:如需更详细,请参见Keil的Help文档

Syntax Description
MAP Displays the current memory map.
MAP start, end READ WRITE EXEC VNM Maps the specified memory range (start-end) accesses as specified.
MAP start, end CLEAR Clears a mapped memory range.

 

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