📄 initbdi_key(not ok).s
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LDR R5,=0x00000053;"S"
BL sendbyte
LDR R5,=0x00000004;get the sector size of download,128 bytes/sector
BL getstring
LDR R0,[R1];save the sector size
LDR R2,=secsize_download
STR R0,[R2]
; BL DISPLAY_R0
SEC_WRI BL getbyte
CMP R5,#71;"G"
BNE COM_downloadEND
LDR R5,=0x00000047;"G"
BL sendbyte;start sector write
LDR R5,=0x00000080;get a sector(128 bytes)
BL getstring
ldr r5,=addr_download
ldr r0,[r5]
add r0,r0,#0x80
ldr r5,=cur_addr_download_end
str r0,[r5]
BL BUF2ROM
;=addr_download <>end __fail
ldr r5,=addr_download
ldr r0,[r5]
ldr r5,=cur_addr_download_end
ldr r2,[r5]
cmp r0,r2
bne fail_wri_byte
LDR R2,=secsize_download
LDR R0,[R2]
SUB R0,R0,#1
CMP R0,#0
BEQ END_FILE
STR R0,[R2]
B SEC_WRI
END_FILE
LDR R5,=0x00000045;"E"
BL sendbyte;END OF TRANSFER
BL TRANSFEROK
COM_downloadEND
LDMFD sp!,{R0-R2,R5,PC};Return
fail_wri_byte
LDR R5,=0x00000046;"F"
BL sendbyte;fail_wri_byte
BL getbyte
CMP R5,#82;"R"
BNE COM_ERROR
LDR R2,=send_bufffer;ADDR OF STRING
ldr r5,=addr_download
LDR R0,[r5]
STR R0,[R2]
LDR R5,=0x00000004
BL sendstring
B COM_downloadEND
COM_ERROR
; BL off_p7
B COM_downloadEND
;B COM_ERROR
TRANSFEROK STMFD sp!,{lr}
; BL on_p7
LDMFD sp!,{PC};Return
wri_byte_Am29F040B
STMFD sp!,{R0-R1,lr}
;R5,low 8-bit Value
;r6,addr of program
ldr r1,=FLASHROM_addr
ldrb r0,=0xaa
strb r0,[r1,#0x555]
ldrb r0,=0x55
strb r0,[r1,#0x2aa]
ldrb r0,=0xa0
strb r0,[r1,#0x555]
strb r5,[r6]
bl delay7us
;bl if_DQ7_end
ldrb r0,[r6]
cmp r0,r5
; bne fail_wribyte
;fail_wribyte
;set verify bit
LDMFD sp!,{r0-r1,PC};Return
if_DQ7_end
STMFD sp!,{R0-R1,lr}
DQ7_not_end
ldr r1,=FLASHROM_addr
DQ5_0
ldrb r0,[r1]
bic r2,r0,#0xFFFFFF7F
cmp r2,#0x80
beq DQ7_end
bic r2,r0,#0xFFFFFFDF
cmp r2,#0x20
bne DQ5_0
ldrb r0,[r1]
bic r2,r0,#0xFFFFFF7F
cmp r2,#0x80
bne DQ7_not_end
DQ7_end
LDMFD sp!,{r0-r1,PC};Return
COM_Display
STMFD sp!,{r5,lr}
;Display-R,(Register)
; M,(Memory)
LDR R5,=0x00000041;"A"
BL sendbyte
BL getbyte
CMP R5,#0x52;"R" File
bleq COM_Register
CMP R5,#0x4D;"M" Display
bleq COM_Memory
LDMFD sp!,{r5,PC};Return
COM_Register
STMFD sp!,{R0,R2,r5,lr}
;display R,(Register) 128-Byte
LDR R5,=0x00000041;"A"
BL sendbyte
BL getbyte
CMP R5,#0x52;"R" reply
LDR R2,=debug_SP_End
STR R0,[R2]
LDR R2,=s_addr_display
STR R0,[R2]
LDR R5,=0x00000118
BL send_MEM_UART0
;s_addr_display,280-byte(0x118)r0-r15
LDMFD sp!,{R0,r2,R5,PC};Return
COM_Memory
STMFD sp!,{R0-R2,r5,lr}
;display M,(Memory) 128-Byte
LDR R5,=0x00000041;"A"
BL sendbyte
LDR R5,=0x00000004;get the start address of download
BL getstring
LDR R5,=0x00000041;"A"
BL sendbyte
BL getbyte
CMP R5,#0x52;"R" File
LDR R1,=receive_bufffer;save the start address
LDR R0,[R1]
LDR R2,=s_addr_display
STR R0,[R2]
LDR R5,=0x00000100
BL send_MEM_UART0
;s_addr_display,256-byte(0x100)
LDMFD sp!,{R0-R2,r5,PC};Return
send_MEM_UART0
STMFD sp!,{R0-R4,lr}
;s_addr_display
;R5:COUNT OF TRANSMIT LOW 16-BIT
;SET R5,BEFORE CALL,256-byte(0x100)
LDR R0,=USART0
send_MEMwait2 LDR R1,[R0,#0x14];US_CSR
LDR R2,=0xFFFFFFEF
BIC R1,R1,R2;ENDTX
CMP R1,#0
BEQ send_MEMwait2
LDR R2,=s_addr_display;start ADDR OF MEM
ldr r1,[r2]
STR R1,[R0,#0x38];US_TPR
;ADDR OF TRANSMITTER POIONTER
STR R5,[R0,#0x3C];US_TCR
send_MEMwait4 LDR R1,[R0,#0x14];US_CSR
LDR R2,=0xFFFFFFEF
BIC R1,R1,R2;ENDTX
CMP R1,#0
BEQ send_MEMwait4
LDMFD sp!,{R0-R4,PC};Return
COM_Change
STMFD sp!,{R0-R2,r5,lr}
LDR R5,=0x00000041;"A"
BL sendbyte
LDR R5,=0x00000004;get the address to change
BL getstring
ldr r2,=receive_bufffer
ldr r0,[r2]
LDR R5,=0x00000041;"A"
BL sendbyte
LDR R5,=0x00000004;get the Value
BL getstring
ldr r2,=receive_bufffer
ldr r1,[r2]
str r1,[r0]
LDR R5,=0x00000041;"A"
BL sendbyte
LDMFD sp!,{R0-r2,r5,PC};Return
COM_TargetGo
STMFD sp!,{R0-R2,r5,lr}
LDR R5,=0x00000041;"A"
BL sendbyte
LDR R5,=0x00000004;get the address to change
BL getstring
ldr r2,=receive_bufffer
ldr r0,[r2]
LDR R5,=0x00000041;"A"
BL sendbyte
ldr r14,=COM_TargetGo_end
mov pc,r0
COM_TargetGo_end
LDR R5,=0x00000041;"A"
BL sendbyte
LDMFD sp!,{R0-r2,r5,PC};Return
COM_EraseFlash
STMFD sp!,{R0-R5,lr}
LDR R5,=0x00000041;"A"
BL sendbyte
LDR R5,=0x00000004;get the sector address to erase
BL getstring
ldr r1,=receive_bufffer
ldr r2,[r1]
ldr r1,=FLASHROM_addr
ldrb r0,=0xaa
strb r0,[r1,#0x555]
ldrb r0,=0x55
strb r0,[r1,#0x2aa]
ldrb r0,=0x80
strb r0,[r1,#0x555]
ldrb r0,=0xaa
strb r0,[r1,#0x555]
ldrb r0,=0x55
strb r0,[r1,#0x2aa]
cmp r0,#0xFFFFFFFF
beq Chiperase_Am29f040B
ldrb r0,=0x30
strb r0,[r1,r2]
bl delay1s
COM_EraseFlash_END
LDR R5,=0x00000041;"A"
BL sendbyte
LDMFD sp!,{R0-R5,PC};Return
Chiperase_Am29f040B
ldrb r0,=0x80
strb r0,[r1,#0x555]
bl delay8s
B COM_EraseFlash_END
BUF2ROM STMFD sp!,{R1,r2,r5,r6,lr}
;receive buffer to rom
LDR R1,=receive_bufffer
mov r2,r1
add r2,r2,#0x80;128-byte per sector,end of sector
;SUB R1,R1,#1
LDR R5,=addr_download
LDR R6,[R5];start addr in r6
;SUB R6,R6,#1;addr of download_cur
BUFWRI_LOOP
LDRB R5,[R1]
bl wri_byte_Am29F040B
;R5,low 8-bit Value
;r6,addr of program
bne wri_byte_fail
add r1,r1,#1
add r6,r6,#1
CMP R1,R2;RECEIVE_BUFFFER END
BNE BUFWRI_LOOP
LDR R5,=addr_download
STR R6,[R5]
;SECTOR WRITE OK,CAN WAIT 10MS OR NOT
wri_byte_fail
;=addr_download <> endaddr
LDMFD sp!,{R1,r2,r5,r6,PC};Return
;GETCHAR STMFD sp!,{R0-R2,R5,lr}
BL getbyte
SUB R5,R5,#0x20
MOV R5,R5,LSL #16
LDR R1,=0x0000C000;写RAM且地址+1
ADD R2,R2,R1
LDR R0,=LCDparam
STR R2,[R0];param
;BL PR11;
; BL on_p7
LDMFD sp!,{R0-R2,R5,PC};Return
;WRIstring
;正常显示字符串，以0x00结尾
;入口:r6=字符串首地址!
;GETSTRING STMFD sp!,{R0-R2,R5-R6,lr}
LDR R5,=0x00000003;HI!
BL getstring
LDR R1,=receive_bufffer
LDR R0,[R1]
LDR R2,=0xFF000000
BIC R0,R0,R2;
STR R0,[R1]
MOV R6,R1
; BL WRIstring
; BL on_p7
LDMFD sp!,{R0-R2,R5-R6,PC};Return
test_USART0 STMFD sp!,{R0-R1,lr}
bl init_USART0
test_USART0_loop
ldr R5,=0x55
bl sendbyte
b test_USART0_loop
LDMFD sp!,{R0-R1,PC};Return
init_USART0
STMFD sp!,{R0-R1,lr}
LDR R0,=USART0
;BL DISPLAY_R0
; LDR R1,=0x000000C0;Normal mode,1 stop bit,even parity,
;Asynchoronous mode,8-bit,MCKI,
LDR R1,=0x000008C0;Normal mode,1 stop bit,even parity,
;Asynchoronous mode,8-bit,MCKI,
STR R1,[R0,#0x04];US_MR
LDR R1,=0x0000000D;115200 BPS
STR R1,[R0,#0x20];US_BRGR
LDR R1,=0x0
STR R1,[R0,#0x24];US_RTOR Disable Receive Time-out
LDR R1,=0x0
STR R1,[R0,#0x28];US_TTGR Disable Transmitter time-guard
LDR R1,=0x00000004;Reset Receiver
STR R1,[R0];US_CR
LDR R1,=0x00000008;Reset Transmitter
STR R1,[R0];US_CR
LDR R1,=0x00000100;Reset Status bits
STR R1,[R0];US_CR
LDR R1,=0x00000010;Receiver Enable
STR R1,[R0];US_CR
LDR R1,=0x00000040;Transmitter Enable
STR R1,[R0];US_CR
LDR R1,=0xFFFFFE1B;DISENABLE INTERRUPT
STR R1,[R0,#0x0C] ;US_IDR
LDR R1,=0x000001E4;ENABLE INTERRUPT
STR R1,[R0,#0x08] ;US_IER
;PROSESS ERROR IN TRANSMIT & RECEIVE
; BL on_p7
LDMFD sp!,{R0-R1,PC};Return
sendbyte STMFD sp!,{R0-R2,lr}
;R5:low 8-bit
LDR R0,=USART0
sendbytewait LDR R1,[R0,#0x14];US_CSR
LDR R2,=0xFFFFFFFD
BIC R1,R1,R2;TXRDY
CMP R1,#2
BNE sendbytewait
STR R5,[R0,#0x1C];US_THR
LDMFD sp!,{R0-R2,PC};Return
sendstring STMFD sp!,{R0-R2,lr}
;R5:COUNT OF TRANSMIT LOW 16-BIT
;SET R5,BEFORE CALL
LDR R0,=USART0
sendstrwait2 LDR R1,[R0,#0x14];US_CSR
LDR R2,=0xFFFFFFEF
BIC R1,R1,R2;ENDTX
CMP R1,#0
BEQ sendstrwait2
LDR R1,=send_bufffer
STR R1,[R0,#0x38];US_TPR
;ADDR OF TRANSMITTER POIONTER
STR R5,[R0,#0x3C];US_TCR
sendstrwait4 LDR R1,[R0,#0x14];US_CSR
LDR R2,=0xFFFFFFEF
BIC R1,R1,R2;ENDTX
CMP R1,#0
BEQ sendstrwait4
LDMFD sp!,{R0-R2,PC};Return
getbyte STMFD sp!,{R0-R2,lr}
;R5 low 8-bit
LDR R0,=USART0
getbytewait LDR R1,[R0,#0x14];US_CSR
LDR R2,=0xFFFFFFFE
BIC R1,R1,R2;RXRDY
CMP R1,#1
BNE getbytewait
LDR R5,[R0,#0x18];US_RHR
LDMFD sp!,{R0-R2,PC};Return
getstring
STMFD sp!,{R0-R2,lr}
;R5:COUNT OF RECEIVER,LOW 16-BIT
;SET R5,BEFORE CALL
LDR R0,=USART0
LDR R1,=receive_bufffer
STR R1,[R0,#0x30];US_RPR
;ADDR OF RECEIVER POIONTER
STR R5,[R0,#0x34];US_RCR
getstrwait2 LDR R1,[R0,#0x14];US_CSR
LDR R2,=0xFFFFFFF7
BIC R1,R1,R2;ENDRX
CMP R1,#0
BEQ getstrwait2
LDMFD sp!,{R0-R2,PC};Return
;-------------------------------------------------------------------
CPL_P0P7
STMFD sp!,{r0-r3,lr}
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