exio.h

来自「UP-NetARM3000 用can总线互联」· C头文件 代码 · 共 8 行

#define EXIOADDR		(*(volatile unsigned short*)0xa000000)		//bank5

unsigned short int EXIOReg;

#define SETEXIOBIT(bit)		do{EXIOReg|=bit; 	EXIOADDR=EXIOReg;}while(0)
#define CLREXIOBIT(bit)		do{EXIOReg&=(~bit); 	EXIOADDR=EXIOReg;}while(0)
#define SETEXIOBITMASK(bit,mask)	do{EXIOReg&=(~mask); EXIOReg|=bit; 	EXIOADDR=EXIOReg;}while(0)