kwingmei

摘要： /* 硬件相关的设置 */ /* Peri port setup cpu: 外设 | 内存cpu芯片手册上的外设是0x7000_0000 开始所有这里告诉cpu ？我可以骗 cpu 说是0x6000_0000 ?*/ ldr r0, =0x70000000 @外设端口的地址 peripheral port memory remap register orr r0, r0, #0x13 @r0=0x70000013 @ [31:12] base address: gives the physical base address of the region of memory ... 阅读全文