option.a

来自「这是一个基于ARM44B0X的LCD实验程序.」· A 代码 · 共 32 行

;**********OPTIONS*******************************
;_RAM_STARTADDRESS  EQU   0xc000000
_ISR_STARTADDRESS   EQU   0xc7fff00 ;GCS6:64M DRAM/SDRAM


;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	60000000


		;PLLCLK = 60000000	
M_DIV	EQU	0x38	;Fin=4MHz Fout=60MHz
P_DIV	EQU	0x2
S_DIV	EQU	0x1
	

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