[問題] 暫存器的讀寫問題!
Dear all,
小弟目前在研究嵌入式Linux系統. 目前想對一些GPIO得register做讀寫
下面是程式片段
#define rA (*(volatile unsigned *)0x12345678) //目標Register address
printf("Address: %p ",&rA);
printf("Value: %x ,rA");
在show value的時候卻顯示 segmentation error
請各位前輩們解惑.:)
3Q~
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