FRDM-K64F sysmpu does not take effect in some addresses

キャンセル
次の結果を表示 
次の代わりに検索 
もしかして: 

FRDM-K64F sysmpu does not take effect in some addresses

432件の閲覧回数
jiameng
Contributor II

Hello,

I am using sysmpu to configure the access permission of peripheral address region (0x40000000 - 0x5FFFFFFF) as RW for privileged mode and No Access for unprivileged mode. I found a subregion of 0x400FF000 to around 0x400FF100 can still be accessed by unprivileged mode and doesn't trigger bus fault. It seems that sysmpu does not take effect in that subregion.

Is there anyone knows the reason?

タグ(2)
0 件の賞賛
1 返信

405件の閲覧回数
EdwinHz
NXP TechSupport
NXP TechSupport

This is a repeated post, please refer to the following post instead: https://community.nxp.com/t5/Kinetis-Software-Development-Kit/FRDM-K64F-MPU-doesn-t-take-effect-on-s...

 

0 件の賞賛