eb40_meta.inc

ARM入门的好帮手.包含了从简单到相对较复杂的程序.

;------------------------------------------------------------------------------
;-      ATMEL Microcontroller Software Support  -   ROUSSET -
;------------------------------------------------------------------------------
; The software is delivered "AS IS" without warranty or condition of any
; kind, either express, implied or statutory. This includes without
; limitation any warranty or condition with respect to merchantability or
; fitness for any particular purpose, or against the infringements of
; intellectual property rights of others.
;------------------------------------------------------------------------------
;- File Name            : eb40.inc
;- Object               : Evaluation Board EB40 Definition File.
;-
;- 1.0 06/04/00 JPP     : Creation
;- 1.1 30/10/00 JPP     : Additing the EBI description
;- 1.2 16/01/01 JPP     : Change for Metaware
;------------------------------------------------------------------------------

;       	INCLUDE     ../../parts/r40807/r40807.inc       ;- library definition 

;---------------------------------------
;- AT91EB40 External Memories Definition
;---------------------------------------
;- Flash Memory : AT29LV1024 64k*16
FLASH_BASE      EQU     0x01000000

EXT_SRAM_BASE   EQU     0x02000000
EXT_SRAM_SIZE   EQU     (512*1024)                   ; 512 Kbytes
EXT_SRAM_LIMIT  EQU     (EXT_SRAM_BASE+EXT_SRAM_SIZE)

;------------------------------------------------------------------------------
;- EBI Initialization Data
;-------------------------
;- The EBI User Interface Image which is copied by the boot.
;- 32,768MHz master clock assumed.
;- That's hardware! Details in the Electrical Datasheet of the AT91 device.
;- EBI Base Address is added at the end for commodity in copy code.
;------------------------------------------------------------------------------
EBI_CSR_0   	EQU     (FLASH_BASE | 0x2529)    ; 0x01000000, 16MB, 2 tdf, 16 bits, 2 WS
EBI_CSR_1   	EQU     (EXT_SRAM_BASE | 0x2121) ; 0x02000000, 16MB, 0 hold, 16 bits, 1 WS
EBI_CSR_2   	EQU     0x20000000  ; unused
EBI_CSR_3   	EQU     0x30000000  ; unused
EBI_CSR_4   	EQU     0x40000000  ; unused
EBI_CSR_5   	EQU     0x50000000  ; unused
EBI_CSR_6   	EQU     0x60000000  ; unused
EBI_CSR_7   	EQU     0x70000000  ; unused

;------------------------------------------------------------------------------
;- AT91M40x Initialization Data library
;--------------------------------------
;- In the ordinary the AT91M40x EBI Initialization it's realized by the library
;- include file but at this time all include file are not translate for Metaware
;- tools chain
;------------------------------------------------------------------------------

PS_BASE             EQU     0xFFFF4000      ;- Power Saving Base Address 
PS_PCER		        EQU     4		        ;- Peripheral Clock Enable Register 
AIC_BASE            EQU     0xFFFFF000      ;- AIC BAse Address
AIC_SPU             EQU     0x0134	        ;- Spurious Vector Register
AIC_EOICR           EQU     0x0130	        ;- Interrupt Command Register
AIC_SVR             EQU     0x0080	        ;- Source Vector Register
AIC_IVR			    EQU     0x0100
EBI_BASE            EQU     0xFFE00000      ;- Address of EBI User Interface base

;--------------------------
;- Internal RAM Definition
;--------------------------

RAM_SIZE            EQU     (8*1024)
RAM_BASE            EQU     (0x00000000)
RAM_LIMIT           EQU     (RAM_BASE + RAM_SIZE)


;- The internal RAM is mapped at address 0x00300000 after reset until
;- Remap command is performed on the EBI.

RAM_BASE_BOOT       EQU     0x00300000

;--------------------------------
;- ARM Core Mode and Status Bits defined in spftware/perif/arm7tdmi/arm.inc
;--------------------------------

ARM_MODE_USER           EQU     0x10
ARM_MODE_FIQ            EQU     0x11
ARM_MODE_IRQ            EQU     0x12
ARM_MODE_SVC            EQU     0x13
ARM_MODE_ABORT          EQU     0x17
ARM_MODE_UNDEF          EQU     0x1B
ARM_MODE_SYS            EQU     0x1F

I_BIT                   EQU     0x80
F_BIT                   EQU     0x40
T_BIT                   EQU     0x20