今天看到一个lcd的程序,里面有这样一个定义<br />/* System */<br />#define rSYSCFG (*(volatile unsigned *)0x1c00000)<br /><br />/* Cache */<br />#define rNCACHBE0 (*(volatile unsigned *)0x1c00004)<br />#define rNCACHBE1 (*(volatile unsigned *)0x1c00008)<br /><br /><br />/* Memory control */<br />#define rBWSCON (*(volatile unsigned *)0x1c80000)<br />#define rBANKCON0 (*(volatile unsigned *)0x1c80004)<br />#define rBANKCON1 (*(volatile unsigned *)0x1c80008)<br /><br />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? |
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