谁知道如何在71x_init.s中添加remapping代码？
已有的代码如下，但这个代码有点问题。
; define remapping
; If you need to remap memory before entring the main program
; uncomment next ligne
#define remapping
; Then define which memory to remap to address 0x00000000
; Uncomment next line if you want to remap RAM
#define remap_ram
; Uncomment next line if you want to remap FLASH
; #define remap_flash
; Uncomment next line if you want to remap EXT FLASH
; #define remap_extflash
#ifdef remapping
#ifdef remap_flash
MOV r0, #FLASH_mask
#endif
#ifdef remap_ram
MOV r0, #RAM_mask
#endif
#ifdef remap_extflash
MOV r0, #EXTFLASH_mask
#endif
LDR r1, =CPM_Base_addr
LDRH r2, [r1, #BOOTCR_off_addr]; Read BOOTCR Register
BIC r2, r2, #0x03 ; Reset the two LSB bits of BOOTCR
ORR r2, r2, r0 ; change the two LSB bits of BOOTCR
STRH r2, [r1, #BOOTCR_off_addr]; Write BOOTCR Register
#endif
有一段ads1.2的代码，但我不知道如何改为IAR for ARM的：
IMPORT |Image$$RO$$Limit| ; End of ROM code (=start of ROM data)
IMPORT |Image$$RW$$Base| ; Base of RAM to initialise
IMPORT |Image$$ZI$$Base| ; Base and limit of area
IMPORT |Image$$ZI$$Limit| ; to zero initialise
;********************************************************
;* Copy and paste RW data/zero initialized data *
;********************************************************
LDR r0, =|Image$$RO$$Limit| ; Get pointer to ROM data
LDR r1, =|Image$$RW$$Base| ; and RAM copy
LDR r3, =|Image$$ZI$$Base|
;Zero init base => top of initialised data
CMP r0, r1 ; Check that they are different
BEQ %F1
0
CMP r1, r3 ; Copy init data
LDRCC r2, [r0], #4 ;--> LDRCC r2, [r0] + ADD r0, r0, #4
STRCC r2, [r1], #4 ;--> STRCC r2, [r1] + ADD r1, r1, #4
BCC %B0
1
LDR r1, =|Image$$ZI$$Limit| ; Top of zero init segment
MOV r2, #0
2
CMP r3, r1 ; Zero init
STRCC r2, [r3], #4
BCC %B2
上述代码可以将要remapping的内容写入boot 0x00000000。但是如何改为IAR for ARM的格式哪？有谁知道，先谢了！ |
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