SLE4428卡讀寫程序。這個(gè)EMC指令版本是根據(jù)C51程序改寫的。已經(jīng)通過(guò)了調(diào)試。
;============================
;發(fā)送數(shù)據(jù)子程序
;入口: DBUF_24 =要發(fā)送的數(shù)據(jù)(8_BIT)
;============================
ic_send_data:
MOV A,@8 ;循環(huán)次數(shù)=8
MOV COUNT_24,A
TXLP:
RRC DBUF_24 ;左移(帶C)
CALL ic_BITOUT ;輸出1_BIT
DJZ COUNT_24 ;循環(huán)結(jié)束?
JMP TXLP
RET
;=================
;位輸入子程序
;說(shuō)明: 當(dāng)SCL=1時(shí),從SDA上讀電平
;出口: C=從SDA上讀入的位值
;=================
ic_BITIN:
set_io_in ;設(shè)置i/o為輸入口
set_clk_out
bc 0x05,0
bs port6,icclk ;clk=1
call delay ;延時(shí)
BC R3,0
JBC port6,icio
BS R3,0 ;C=io
call delay ;延時(shí)0.6US
BC port6,icclk ;clk=0
call delay ;延時(shí)0.6US
RET
;=================
;位輸出子程序
;說(shuō)明: 每當(dāng)SCL=0時(shí),改寫SDA上的電平
;入口: C=要寫到SDA上的位值
;=================
ic_BITOUT:
;SDA_OUT ;設(shè)置SDA為輸出口
set_io_out
set_clk_out
JBS R3,0
JMP BIT0
BS port6,icio ;io=C=1
JMP io1
BIT0:
BC port6,icio ;io=C=0
io1:
call delay ;延時(shí)0.6US
bs port6,icclk ;clk=1
BIT2:
call delay
call delay
bc port6,icclk ;clk=0
RET
;============================
;接收數(shù)據(jù)子程序
;入口: TT_24.REND_24 =讀完畢標(biāo)志
;出口: DBUF_24 =接受到的數(shù)據(jù)(8_BIT)
;============================
ic_receive_data:
MOV A,@8 ;循環(huán)次數(shù)=8
MOV COUNT_24,A
CLR DBUF_24
RXLP:
CALL ic_BITIN ;輸入1_BIT
RRC DBUF_24 ;左移(帶C)
DJZ COUNT_24 ;循環(huán)結(jié)束?
JMP RXLP
RET
;===========================
;復(fù)位操作
;============================
ic_reset:
set_clk_out
set_io_out
set_rst_out
bc port6,icclk ;clk=0
call delay10
bc port6,icrst ;rst=0
call delay10
bs port6,icio ;i/o=1
call delay10
bs port6,icrst ;rst=1
call delay10
bs port6,icclk ;clk=1
call delay10
bc port6,icclk ;clk=0
call delay10
bc port6,icrst ;rst=0
call delay10
call ic_receive_data
MOV ic_buffer1,dbuf_24
call ic_receive_data
;MOV ic_buffer2,dbuf_24
call ic_receive_data
;MOV ic_buffer3,dbuf_24
call ic_receive_data
;MOV ic_buffer4,dbuf_24
ret
;============================延時(shí)子程序====================================
;功能：短延時(shí) 入口：NONE 出口：NONE
;影響資源：A,TEMP ,STATUS
;==========================================================================
DELAY:
MOV A,@0X05
MOV TEMP,A
DJZ TEMP
JMP $-1
RET
;============================延時(shí)子程序10MS================================
;功能：延時(shí) 入口：NONE 出口：NONE
;影響資源：A,TEMP ,STATUS
;==========================================================================
DELAY10:
MOV A,@0x10
MOV TEMP,A
MOV A,@0xff
MOV TEMP1,A
DJZ TEMP1
JMP $-1
DJZ TEMP
JMP $-5
RET
DELAY100:
MOV a, @0x36
MOV delay_time1, a
delay51:
MOV a, @0x25
MOV delay_time2,a
delay52:
MOV a, @0x42
MOV flag, a
delay53:
djz flag
jmp delay53
djz delay_time2
jmp delay52
djz delay_time1
jmp delay51
RET
;=========發(fā)送命令=========
;send command
;==========================
ic_sendcommand:
;start condition
set_clk_out
set_io_out
bc port6,icclk
bs port6,icio
call delay
bs port6,icclk
call delay
bc port6,icio
call delay
bc port6,icclk
call delay
MOV dbuf_24,ic_command1
call ic_send_data
MOV dbuf_24,ic_command2
call ic_send_data
MOV dbuf_24,ic_command3
call ic_send_data
;stop condition
bc port6,icio
call delay
bs port6,icclk
call delay
bs port6,icio
call delay
ret
;process
ic_process:
bc port6,icclk
call delay
bc port6,icio
MOV process_temp,@254
puls:
bs port6,icclk
call delay
bc port6,icclk
djz process_temp
jmp puls
ret
/*================讀主存儲(chǔ)器==================
入口：rmm_address 讀取的地址
rmm_len 讀取的長(zhǎng)度
出口：ic_buffer1
;============================================*/
ic_readmainmemory:
bank 0
MOV ic_command1,@0x30
MOV ic_command2,rmm_address
MOV ic_command3,@0
call ic_sendcommand
bc port6,icclk
call delay
MOV len,@0 ;0x10為私有要保護(hù)
MOV rmm_temp,@255
MOV a,rmm_address
sub rmm_temp,a
inc rmm_temp ;rmm_temp=256-address
goto_readdata:
CJL len,rmm_temp,readdata
;COMPARE AND JUMP IF REG1 jmp exit_readdata
readdata:
CJL len,rmm_len,save_data
call ic_receive_data
jmp drop_data
save_data:
call ic_receive_data
MOV a,dbuf_24
MOV ic_buffer1,a
drop_data:
inc len
jmp goto_readdata
exit_readdata:
bs port6,icclk
call delay
bc port6,icclk
call delay
ret
/*================寫主存儲(chǔ)器==================
入口：wmm_address 寫主存的地址
wmm_value 寫主存的數(shù)據(jù)
出口：
;============================================*/
ic_writemainmemory:
set_io_out
set_clk_out
MOV ic_command1,@0x38
MOV ic_command2,wmm_address
MOV ic_command3,wmm_data
call ic_sendcommand
bc port6,icclk
call delay
bc port6,icio
call delay
MOV len,@0 ;0x10為私有要保護(hù)
goto_writedata:
CJL len,@254,writedata
jmp exit_writedata
writedata:
bs port6,icclk
call delay
bc port6,icclk
call delay
inc len
jmp goto_writedata
exit_writedata:
bs port6,icio
call delay
bs port6,icclk ;stop condition
call delay
bc port6,icclk
call delay
ret
/*================讀安全儲(chǔ)區(qū)=================
入口：
出口：rsm_data1、rsm_data2、rsm_data3、rsm_data4讀取的數(shù)據(jù)
;============================================*/
ic_readsecmemory:
set_io_out
set_clk_out
MOV ic_command1,@0x31
;MOV a,@0xff
MOV ic_command2,@0xff
MOV ic_command3,@0xff
call ic_sendcommand
bc port6,icclk
call delay
call ic_receive_data
MOV rsm_data1,dbuf_24
call ic_receive_data
MOV rsm_data2,dbuf_24
call ic_receive_data
MOV rsm_data3,dbuf_24
call ic_receive_data
MOV rsm_data4,dbuf_24
set_io_out
set_clk_out
bs port6,icio
call delay
bs port6,icclk ;stop condition
call delay
bc port6,icclk
call delay
ret
/*================比較密碼 =================
入口：
出口：
;============================================*/
ic_compareverifdata:
set_io_out
set_clk_out
call ic_readsecmemory
nop
nop
;MOV a,rsm_data1
;and a,@0x07
;MOV rsm_data1,a
MOV rsm_data1,rsm_data1
jbc 0x03,2
jmp fail_exit
nop
CJE rsm_data1,@0x07,setbit1
CJE rsm_data1,@0x06,setbit2
CJE rsm_data1,@0x04,setbit3
jmp fail_exit
setbit1:
MOV wsm_data,@0x06
nop
jmp endcomp
setbit2:
MOV wsm_data,@0x04
nop
jmp endcomp
setbit3:
MOV wsm_data,@0x00
nop
endcomp:
MOV wsm_address,@0
call ic_writesecmemory
;MOV len,@0
;CJL len,@3,writedata
;MOV password_data,@0xff
MOV ic_command1,@0x33
MOV ic_command2,@1
MOV ic_command3,@0xff
call ic_sendcommand
set_io_out
set_clk_out
bc port6,icclk
call delay
bc port6,icio
call delay
bs port6,icclk ;stop condition
call delay
bc port6,icclk
call delay
bs port6,icclk ;stop condition
call delay
bc port6,icclk
call delay
bs port6,icio
call delay
bs port6,icclk ;stop condition
call delay
bc port6,icclk
call delay
MOV ic_command1,@0x33
MOV ic_command2,@2
MOV ic_command3,@0xff
call ic_sendcommand
bc port6,icclk
call delay
bc port6,icio
call delay
bs port6,icclk ;stop condition
call delay
bc port6,icclk
call delay
bs port6,icclk ;stop condition
call delay
bc port6,icclk
call delay
bs port6,icio
call delay
bs port6,icclk ;stop condition
call delay
bc port6,icclk
call delay
MOV ic_command1,@0x33
MOV ic_command2,@3
MOV ic_command3,@0xff
call ic_sendcommand
bc port6,icclk
call delay
bc port6,icio
call delay
bs port6,icclk ;stop condition
call delay
bc port6,icclk
call delay
bs port6,icclk ;stop condition
call delay
bc port6,icclk
call delay
bs port6,icio
call delay
bs port6,icclk ;stop condition
call delay
bc port6,icclk
call delay
nop
fail_exit:
MOV wsm_address,@0
MOV wsm_data,@0xff
call ic_writesecmemory
call delay
call ic_readsecmemory
CJE rsm_data1,@0x07,success
MOV ic_compare_password_flag,@0
jmp failed
success:
MOV ic_compare_password_flag,@1
failed:
nop
nop
ret
/*================讀保護(hù)儲(chǔ)器=================
出口：rpm_data 讀取的數(shù)據(jù)
;============================================*/
ic_readprotectmemory:
set_io_out
set_clk_out
MOV ic_command1,@0x34
MOV a,@0
MOV ic_command2,a
MOV ic_command3,a
call ic_sendcommand
bc p6cr,icclk
call delay
call ic_receive_data
MOV rpm_data1,dbuf_24
call ic_receive_data
MOV rpm_data2,dbuf_24
call ic_receive_data
MOV rpm_data3,dbuf_24
call ic_receive_data
MOV rpm_data4,dbuf_24
set_io_out
set_clk_out
bs p6cr,icclk ;stop condition
call delay
bc p6cr,icclk
call delay
ret
/*================寫保護(hù)儲(chǔ)器=================
入口：wpm_address 寫的地址
出口：wpm_data 寫的數(shù)據(jù)
;============================================*/
ic_writeprotectmemory:
set_io_out
set_clk_out
MOV ic_command1,@0x3c
MOV ic_command2,wpm_address
MOV ic_command3,wpm_data
call ic_sendcommand
bc p6cr,icclk
call delay
bc p6cr,icio
call delay
MOV len,@0
goto_writeprotectdata:
CJL len,@254,writeprotectdata
jmp exit_writeprotectdata
writeprotectdata:
bs p6cr,icclk
call delay
bc p6cr,icclk
call delay
inc len
jmp goto_writeprotectdata
exit_writeprotectdata:
bs p6cr,icio
call delay
bs p6cr,icclk ;stop condition
call delay
bc p6cr,icclk
call delay
ret
/*================寫安全儲(chǔ)區(qū)=================
入口：wsm_address 寫的地址
出口：wsm_data 寫的數(shù)據(jù)
;============================================*/
ic_writesecmemory:
set_io_out
set_clk_out
MOV ic_command1,@0x39
MOV ic_command2,wsm_address
MOV ic_command3,wsm_data
call ic_sendcommand
bc port6,icclk
call delay
bc port6,icio
call delay
MOV len,@0
goto_writesecdata:
CJL len,@254,writesecdata
jmp exit_writesecdata
writesecdata:
bs port6,icclk
call delay
bc port6,icclk
call delay
inc len
jmp goto_writesecdata
exit_writesecdata:
bs port6,icio
call delay
bs port6,icclk ;stop condition
call delay
bc port6,icclk
call delay
ret |
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66821730(技術(shù)支持)
