option.a

关于三星公司44b0arm单片机的RTC测试程序,大家可以学习一下.

;**********OPTIONS*******************************
_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	64000000


	[	PLLCLK = 64000000	
M_DIV	EQU	56	;Fin=8MHz Fout=64MHz
P_DIV	EQU	2
S_DIV	EQU	1
	]

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