option.h

ARM744b0GPIO代码

// ************* OPTIONS **************
//cowboy
//#define MCLK (67500000)
// ************* OPTIONS **************
#define MCLK 56000000		//系统主频设定
#define	EXT_OSC_CLK	8000000

//#define PLLON 1
//Fout = (8 + M_DIV) * Fin / [ (2+P_DIV) * (2^S_DIV) ]
#if   (MCLK==24000000)
	#define PLL_M (16)
	#define PLL_P (2)
	#define PLL_S (1)

#elif (MCLK==32000000)
	#define PLL_M (24)
	#define PLL_P (2)
	#define PLL_S (1)

#elif (MCLK==40000000)
	#define PLL_M (32)
	#define PLL_P (2)
	#define PLL_S (1)

#elif (MCLK==48000000)
	#define PLL_M (40)
	#define PLL_P (2)
	#define PLL_S (1)

#elif (MCLK==56000000)
	#define PLL_M (48)
	#define PLL_P (2)
	#define PLL_S (1)

#elif (MCLK==64000000)
	#define PLL_M (56)
	#define PLL_P (2)
	#define PLL_S (1)

#elif (MCLK==66000000)
	#define PLL_M (58)
	#define PLL_P (2)
	#define PLL_S (1)
#endif


#define WRBUFOPT (0x8)   //write_buf_on

#define SYSCFG_0KB (0x0|WRBUFOPT)
#define SYSCFG_4KB (0x2|WRBUFOPT)
#define SYSCFG_8KB (0x6|WRBUFOPT)

#define DRAM	    1		//In case DRAM is used
#define SDRAM	    2		//In case SDRAM is used
#define BDRAMTYPE   SDRAM	//used in power.c,44blib.c

//BUSWIDTH; 16,32
#define BUSWIDTH    (16)
//cowboy//#define Non_Cache_Start	(0x4000000)
#define Non_Cache_Start	(0x2000000)
//cowboy//#define Non_Cache_End 	(0xA000000)
#define Non_Cache_End 	(0xc000000)
#define CACHECFG    SYSCFG_8KB
//cowboy//#define _RAM_STARTADDRESS 0xc100000
#define _RAM_STARTADDRESS 0xc000000
#define _ISR_STARTADDRESS 0xc7fff00     //GCS6:64M DRAM/SDRAM


#define Debug 1			//Now all the code is under Debug State
//#define Debug 0