option.s

来自「44B0+8019系统」· S 代码 · 共 32 行

;**********OPTIONS*******************************
;_ISR_STARTADDRESS   EQU   0xcffff00 ;GCS6:64M DRAM/SDRAM  ;for me
_ISR_STARTADDRESS   EQU   0xC000008 ;GCS6:64M DRAM/SDRAM   ;for linux


;BUSWIDTH; 16,32
            GBLA    BUSWIDTH
BUSWIDTH	SETA    16


;"DRAM","SDRAM"
            GBLS    BDRAMTYPE
BDRAMTYPE	SETS    "SDRAM"


;This value has to be TRUE on ROM program.
;This value has to be FALSE in RAM program.
                GBLL    PLLONSTART
PLLONSTART      SETL    {TRUE}

  GBLA	    PLLCLK
PLLCLK		SETA	66000000


;	[	PLLCLK = 66000000	
M_DIV	EQU	58	;Fin=8MHz Fout=66MHz = (8*(58+8)) / ((2+2)*2^1)
P_DIV	EQU	2
S_DIV	EQU	1
;	]

;************************************************
	END