option.h

来自「s3c44b0x对FLASH的读写,测试成功K9F2G08」· C头文件 代码 · 共 36 行

// ************* OPTIONS **************
// 晶振11.0592M,6倍频.2MROM, 8MSDRM
#define MCLK (11059200*6)
#define PLLON 1
//        (PLL_M+8)*Fin      (PLL_M+8)*11.0592Mhz
//MCLK=------------------- = -------------- 
//     (PLL_P+2)*(2^PLL_S)        (3+2)*2

#define PLL_M (52)
#define PLL_P (3)
#define PLL_S (1)


#define WRBUFOPT (0x8)   //write_buf_on
//#define WRBUFOPT (0x0)   //write_buf_off

#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)

#define Non_Cache_Start	(0x2000000)
#define Non_Cache_End 	(0xc000000)

#define CACHECFG    SYSCFG_8KB


#define _RAM_STARTADDRESS 0xc000000
#define _ISR_STARTADDRESS 0xc7fff00     //GCS6:8M DRAM/SDRAM