2410option.inc

ARM9-2410的LED灯点亮码源

;@===========================================
;@ NAME: OPTION.A
;@ DESC: Configuration options for .S files
;@ HISTORY:
;@ 02.28.2002: ver 1.0
;@===========================================

;@Start address of each stacksEQU
_RAM_STARTADDRESS   EQU  0x30000000
_STACK_BASEADDRESS	EQU 0x33ff8000  
_MMUTT_STARTADDRESS	EQU 0x33ff8000  
_ISR_STARTADDRESS	EQU 0x33ffff00

;PLL_ON_START是一个全局变量，设置为真
	GBLL 	PLL_ON_START  
PLL_ON_START	SETL 	{TRUE}
;PLL_ON_START EQU 1

;@	GBLL	ENDIAN_CHANGE
;@ENDIAN_CHANGE	SETL	{FALSE}

		GBLA	ENTRY_BUS_WIDTH
ENTRY_BUS_WIDTH	SETA	16	
;ENTRY_BUS_WIDTH	EQU	16	


;@BUSWIDTH = 16,32
		GBLA    BUSWIDTH	;@max. bus width for the GPIO configuration
BUSWIDTH	SETA    32
;BUSWIDTH  EQU 32


		GBLA	FCLK
FCLK		SETA	50000000
;FCLK EQU 50000000

	IF	FCLK =20000000	
M_MDIV	EQU	0x20	;@Fin=12.0MHz Fout=30.0MHz
M_PDIV	EQU	0x4
M_SDIV	EQU	0x2
	ENDIF

	IF	FCLK =30000000	
M_MDIV	EQU	0x34	;@Fin=12.0MHz Fout=30.0MHz
M_PDIV	EQU	0x4
M_SDIV	EQU	0x2
	ENDIF

	IF	FCLK = 50000000	
M_MDIV	EQU	0x5c	;@Fin=12.0MHz Fout=50.0MHz
M_PDIV	EQU	0x4
M_SDIV	EQU	0x2
	ENDIF

	IF	FCLK = 60000000	
M_MDIV	EQU	0x70	;@Fin=12.0MHz Fout=60.0MHz
M_PDIV	EQU	0x4
M_SDIV	EQU	0x2
	ENDIF

	IF	FCLK =70000000	
M_MDIV	EQU	0x84	;@Fin=12.0MHz Fout=70.0MHz
M_PDIV	EQU	0x4
M_SDIV	EQU	0x2
	ENDIF

	IF	FCLK =75000000	
M_MDIV	EQU	0x8e	;@Fin=12.0MHz Fout=75.0MHz
M_PDIV	EQU	0x4
M_SDIV	EQU	0x2
	ENDIF

	END