今天看到一个lcd的程序,里面有这样一个定义 /* System */ #define rSYSCFG (*(volatile unsigned *)0x1c00000)
/* Cache */ #define rNCACHBE0 (*(volatile unsigned *)0x1c00004) #define rNCACHBE1 (*(volatile unsigned *)0x1c00008)
/* Memory control */ #define rBWSCON (*(volatile unsigned *)0x1c80000) #define rBANKCON0 (*(volatile unsigned *)0x1c80004) #define rBANKCON1 (*(volatile unsigned *)0x1c80008)
下面Memory control里的都能找到,但System和Cache里的定义却在手册里查不到? |