RfidResearchGroup/proxmark3
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proxmark3/tools/simmodule/sim013.asm

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; ---------------------------------------------------------------------------
; Proxmark3 RDV4 SIM module firmware
;
; Copyright (C) 2109, 2022 Sentinel
;
; This program is free software: you can redistribute it and/or modify it
; under the terms of the GNU Lesser General Public License as published by the
; Free Software Foundation, either version 3 of the License, or (at your
; option) any later version.
;
; This program is distributed in the hope that it will be useful, but WITHOUT
; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
; more details.
;
; You should have received a copy of the GNU Lesser General Public License
; along with this program. If not, see <http://www.gnu.org/licenses/>
; ---------------------------------------------------------------------------
VERS_HI equ 4
VERS_LO equ 13
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
SCON_0 equ 098h
FE_0 equ 098h.7
SCON_1 equ 0F8h
RI_1 equ 0F8h.0
TI_1 equ 0F8h.1
FE_1 equ 0F8h.7
SBUF_1 equ 09Ah
T3CON equ 0C4h
RL3 equ 0C5h
RH3 equ 0C6h
P0M1 equ 0B1h
P0M2 equ 0B2h
P1M1 equ 0B3h
P1M2 equ 0B4h
P3M1 equ 0ACh;
P3M2 equ 0ADh;
EIE equ 09Bh
EIE1 equ 09Ch
TA equ 0C7h
RCTRIM0 equ 084h
; ---------------------------------------------------------------------------
CKCON equ 08Eh
CKDIV equ 095h
; ---------------------------------------------------------------------------
P1S equ 0B3h ;Page1
SFRS equ 091h ;TA Protection
; ---------------------------------------------------------------------------
;AUXR1 equ 0A2h
; ---------------------------------------------------------------------------
I2DAT equ 0BCh;
I2STAT equ 0BDh;
I2CLK equ 0BEh;
I2TOC equ 0BFh;
I2CON equ 0C0h;
; equ I2CON.7;8
I2CEN equ I2CON.6;4
STA equ I2CON.5;2
STO equ I2CON.4;1
SI equ I2CON.3;8
AA equ I2CON.2;4
; equ I2CON.1;2
I2CPX equ I2CON.0;1
I2ADDR equ 0C1h;
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
pin_TX1 equ P1.6
pin_TX0 equ P0.6
pin_RX0 equ P0.7
pin_SCL equ P1.3
pin_SDA equ P1.4
pin_RST equ P1.0
pin_CLC equ P1.1
pin_led equ P1.2
; ---------------------------------------------------------------------------
; ===========================================================================
CMD_GENERATE_ATR equ 01h
CMD_WRITE_DATA_SIM equ 02h
CMD_READ_DATA_SIM equ 03h
CMD_SET_BAUD_RATE equ 04h
CMD_SET_SIM_CLC equ 05h
CMD_GET_VERS equ 06h
CMD_WRITE_CONFIRM equ 07h
; ---------------------------------------------------------------------------
; ===========================================================================
bit_RX0 equ 32.0
bit_command_receive equ 32.1
bit_generate_ATR equ 32.2
i2c_write_mode equ 32.3
i2c_write_done equ 32.4
bit_data_sim_wr equ 32.5
; equ 32.6
bit_TX0 equ 32.7
bit_command_buff equ 33.0
i2c_write_command equ 33.1
i2c_command_done equ 33.2
bit_wait_confirm equ 33.3
bit_first_ATR equ 33.4 ;11/03/2019
bit_length_answerH equ 33.5
bit_length_answerL equ 33.6
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
bit_32 equ 32
bit_33 equ 33
time_data_read equ 34
time_confirm equ 35
pointer_RX1H equ 36 ;save SBUF(SIM) to XRAM
pointer_RX1L equ 37 ;save SBUF(SIM) to XRAM
pointer_RX2H equ 38 ;read XRAM to I2C
pointer_RX2L equ 39 ;read XRAM to I2C
pointer_TXH equ 40
pointer_TXL equ 41
length_send_to_simH equ 42
length_send_to_simL equ 43
length_answer_simH equ 44
length_answer_simL equ 45
length_command equ 46
buff_command equ 47
cmd_command equ 48
data_command equ 49
STACKKKKK equ 200
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
XRAM_TX_BUFF equ 0
XRAM_RX_BUFF equ 384
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
; Beginning of the main program
cseg at 00
Ljmp main_start
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
cseg at 11 ;1302Hz = 4MHZ(Fsys)/12/256
; ---------------------------------------------------------------------------
jb time_confirm.7, $+3+2 ;3
dec time_confirm ;2
; ---------------------------------------------------------------------------
jb time_data_read.7,reti_timer0
djnz time_data_read, reti_timer0
setb pin_scl
reti_timer0:
reti
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
cseg at 35 ;UART0
ajmp jmp_UART0_interrupt
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
cseg at 51 ;I2C
ajmp jmp_i2c_interrupt
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
cseg at 123 ;UART1
clr RI_1
clr TI_1
reti
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
jmp_UART0_interrupt:
jbc RI,jmp_byte_RI
jbc TI,jmp_byte_TI
reti
; ---------------------------------------------------------------------------
jmp_byte_RI:
jnb bit_first_ATR, jmp_not_collect ;11/03/2019
setb bit_RX0
jb i2c_write_done,jmp_not_collect
PUSH ACC
PUSH DPH
PUSH DPL
mov DPL,pointer_RX1L
mov DPH,pointer_RX1H
mov a,SBUF
movx @DPTR,a
inc DPTR
mov pointer_RX1L,DPL
mov pointer_RX1H,DPH
POP DPL
POP DPH
POP ACC
;09/08/2018
clr pin_scl
mov time_data_read,#52 ;52/1302Hz = 40mS
inc length_answer_simL
mov a,length_answer_simL
jnz $+2+2 ;2
inc length_answer_simH ;2
jmp_not_collect:
reti
; ---------------------------------------------------------------------------
jmp_byte_TI:
setb bit_TX0
reti
; ===========================================================================
; ---------------------------------------------------------------------------
jmp_i2c_interrupt:
PUSH ACC
PUSH PSW
mov PSW,#24
mov R7,I2STAT
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
cjne R7,#000h,nextttt00000
setb STO
clr SI
jb STO,$
ajmp pop_i2c_psw
nextttt00000:
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
cjne R7,#060h,nextttt00001 ;START+MY ADRESS
clr pin_led ;LED ON
clr bit_command_receive
clr i2c_write_mode
clr bit_data_sim_wr
clr bit_length_answerH
clr bit_length_answerL
clr bit_command_buff
clr i2c_write_command
ajmp end_i2c_interrupt
nextttt00001:
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
cjne R7,#080h,nextttt00002 ;RAM ADRESS
jb bit_command_receive,jmp_data_receive
setb bit_command_receive
mov a,I2DAT
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
cjne a,#CMD_WRITE_CONFIRM,next_comm001a
setb bit_wait_confirm
ajmp WRITEDATASIM
next_comm001a:
; ---------------------------------------------------------------------------
cjne a,#CMD_WRITE_DATA_SIM,next_comm001b
clr bit_wait_confirm
ajmp WRITEDATASIM
next_comm001b:
; ---------------------------------------------------------------------------
cjne a,#CMD_GENERATE_ATR,next_comm002
ajmp ATR_GENERATE
next_comm002:
; ---------------------------------------------------------------------------
cjne a,#CMD_GET_VERS,next_comm003
ajmp ANSWER_VERS
next_comm003:
; ---------------------------------------------------------------------------
cjne a,#CMD_SET_BAUD_RATE,next_comm004
ajmp BAUD_RATE_SET
next_comm004:
; ---------------------------------------------------------------------------
cjne a,#CMD_SET_SIM_CLC,next_comm005
ajmp SIM_CLC_SET
next_comm005:
; ---------------------------------------------------------------------------
ajmp end_i2c_interrupt
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
jmp_data_receive:
;What receive ? Data to SIM/Command to bridge
jb bit_data_sim_wr, jmp_data_sim_receive
jb i2c_write_command,jmp_comm_bridge_receive
ajmp end_i2c_interrupt
; ---------------------------------------------------------------------------
jmp_comm_bridge_receive:
mov @R0,I2DAT
inc R0
inc length_command
ajmp end_i2c_interrupt
; ---------------------------------------------------------------------------
jmp_data_sim_receive:
setb i2c_write_mode
PUSH DPH
PUSH DPL
mov DPL,pointer_TXL
mov DPH,pointer_TXH
mov a,I2DAT
movx @DPTR,a
inc DPTR
mov pointer_TXL,DPL
mov pointer_TXH,DPH
POP DPL
POP DPH
inc length_send_to_simL
mov a,length_send_to_simL
jnz $+2+2 ;2
inc length_send_to_simH ;2
ajmp end_i2c_interrupt
nextttt00002:
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
cjne R7,#0A0h,nextttt00003 ;STOP
setb pin_led ;LED OFF
;Command finish ?
jnb i2c_write_command,jmp_not_command
clr i2c_write_command
setb i2c_command_done
jmp_not_command:
;data to SIM finish ?
jnb i2c_write_mode,end_i2c_interrupt
clr i2c_write_mode
setb i2c_write_done
;Prepare to answer
mov length_answer_simH,#0
mov length_answer_simL,#0
mov pointer_RX1H,#HIGH(XRAM_RX_BUFF)
mov pointer_RX1L,#LOW (XRAM_RX_BUFF)
mov pointer_RX2H,#HIGH(XRAM_RX_BUFF)
mov pointer_RX2L,#LOW (XRAM_RX_BUFF)
ajmp end_i2c_interrupt
nextttt00003:
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
cjne R7,#0A8h,nextttt00004
sjmp read_byte_I2C
nextttt00004:
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
cjne R7,#0B8h,nextttt00005
read_byte_I2C:
jnb bit_command_buff,jmp_not_comm_buff2
mov I2DAT,@R0
inc R0
ajmp end_i2c_interrupt
jmp_not_comm_buff2:
jb bit_length_answerH,jmp_not_comm_buff3
setb bit_length_answerH
mov I2DAT,length_answer_simH
ajmp end_i2c_interrupt
jmp_not_comm_buff3:
jb bit_length_answerL,read_byte_APROM
setb bit_length_answerL
mov I2DAT,length_answer_simL
ajmp end_i2c_interrupt
read_byte_APROM:
PUSH DPH
PUSH DPL
mov DPL,pointer_RX2L
mov DPH,pointer_RX2H
movx a,@DPTR
mov I2DAT,a
inc DPTR
mov pointer_RX2L,DPL
mov pointer_RX2H,DPH
POP DPL
POP DPH
nextttt00005:
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
end_i2c_interrupt:
clr STA
clr STO
setb AA
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
pop_i2c_psw:
POP PSW
POP ACC
clr SI
reti
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
ANSWER_VERS:
mov R0,#data_command
mov cmd_command,#CMD_GET_VERS
mov (data_command+0),#2
mov (data_command+1),#VERS_HI
mov (data_command+2),#VERS_LO
setb bit_command_buff
ajmp end_i2c_interrupt
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
ATR_GENERATE:
setb bit_generate_ATR
;Prepare to answer
mov length_answer_simH,#0
mov length_answer_simL,#0
mov pointer_RX1H,#HIGH(XRAM_RX_BUFF)
mov pointer_RX1L,#LOW (XRAM_RX_BUFF)
mov pointer_RX2H,#HIGH(XRAM_RX_BUFF)
mov pointer_RX2L,#LOW (XRAM_RX_BUFF)
ajmp end_i2c_interrupt
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
BAUD_RATE_SET:
mov R0,#data_command
mov length_command,#0
mov cmd_command,#CMD_SET_BAUD_RATE
setb i2c_write_command
ajmp end_i2c_interrupt
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
SIM_CLC_SET:
mov R0,#data_command
mov length_command,#0
mov cmd_command,#CMD_SET_SIM_CLC
setb i2c_write_command
ajmp end_i2c_interrupt
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
WRITEDATASIM:
mov length_send_to_simH,#0
mov length_send_to_simL,#0
setb bit_data_sim_wr
mov pointer_TXH,#HIGH(XRAM_TX_BUFF)
mov pointer_TXL,#LOW (XRAM_TX_BUFF)
ajmp end_i2c_interrupt
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
; %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
main_start:
mov SP,#STACKKKKK
; ---------------------------------------------------------------------------
;0-bidirect 1-push pull 0-input only 1-open drain
;0 0 1 1
; ---------------------------------------------------------------------------
mov P0M2,#01000000b ;?0
mov P0M1,#11111111b ;P1.6-Tx0 SIM;
;
mov P1M2,#01011111b ;<3B>1
mov P1M1,#10111000b ;P1.6-Tx1 DEBUG; P1.4,P1.3 - I2C;
mov P3M2,#00000000b ;P3
mov P3M1,#11111111b ;
; ---------------------------------------------------------------------------
mov TMOD, #22h
mov TH0, #0 ;14400hz
mov TH1, #0E9h ;UART0 10800 Bit/sec
mov TCON, #55h
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
mov TA,#0AAh
mov TA,#055h
orl SFRS,#00000001b
mov P1S, #00010000b ;P1.4 trigger schmiddt
mov TA,#0AAh
mov TA,#055h
anl SFRS,#11111110b
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
;------- CONFIG I2C ---------
mov I2CON, #44h ;set AA, set I2C enable
setb pin_sda
setb pin_scl
mov I2ADDR,#0C0h
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
;mov SCON, #050h ;UART0 8bit
mov SCON, #0D0h ;UART0 9bit
;mov PCON, #11000000b;FE_0 enable
mov PCON, #10000000b;FE_0 disable
; ---------------------------------------------------------------------------
mov SCON_1,#050h ;UART1
;mov T3CON, #01101000b;FE_1 enable TIMER3 UART0 BAUD
;mov T3CON, #00101000b;FE_1 disable TIMER3 UART0 BAUD
mov T3CON, #00001000b;FE_1 disable TIMER1 UART0 BAUD
;mov RL3,#0E9h ;10800/21600
;mov RH3,#0FFh
; ---------------------------------------------------------------------------
;UART1
mov RL3,#0F7h ;27777/55556
mov RH3,#0FFh
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
mov CKDIV,#2 ;Fsys=4.00MHZ
;mov CKDIV,#1 ;Fsys=8.00MHZ
; ---------------------------------------------------------------------------
mov bit_32,#0
mov bit_33,#0
setb time_data_read.7
; ---------------------------------------------------------------------------
;orl CKCON,#00000010b ;ENABLE CLC TIMER1 Fsys/12
orl CKCON,#00010010b ;ENABLE CLC TIMER1 Fsys
; ---------------------------------------------------------------------------
;mov a,RCTRIM0
;add a,#31
;mov TA,#0AAh
;mov TA,#055h
;mov RCTRIM0,a
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
acall clr_buffer
; ---------------------------------------------------------------------------
mov EIE, #00000001b ;I2C Interrupt
;mov IE, #10010000b ;EA, SERIAL0
mov IE, #10010010b ;EA, SERIAL0, TIMER0
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
main_loop:
acall control_ATR
acall control_send_to_sim
acall control_command
sjmp main_loop
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
control_command:
jbc i2c_command_done,$+3+1 ;3
ret ;1
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
;Control Length command=1
mov a,length_command
cjne a,#1,next_commandEND ;error length_command != 1
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
mov a,cmd_command
cjne a,#CMD_SET_BAUD_RATE,next_command001
mov TH1,data_command ;Timer1 HIGH byte
ret
next_command001:
; ---------------------------------------------------------------------------
cjne a,#CMD_SET_SIM_CLC, next_command002
mov CKDIV,data_command ;Fsys DIV
ret
next_command002:
; ---------------------------------------------------------------------------
next_commandEND:
ret
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
control_send_to_sim:
jb i2c_write_done,$+3+1 ;3
ret ;1
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
jbc bit_wait_confirm,jmp_wait_confirm
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
mov DPTR,#XRAM_TX_BUFF
looop_send:
movx a,@DPTR
inc DPTR
acall for_coooooom0
clr c
mov a,length_send_to_simL
subb a,#1
mov length_send_to_simL,a
mov a,length_send_to_simH
subb a,#0
mov length_send_to_simH,a
orl a,length_send_to_simL
jnz looop_send
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
jnb bit_RX0,$
clr i2c_write_done
ret
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
jmp_wait_confirm:
mov DPTR,#(XRAM_TX_BUFF+1)
movx a,@DPTR
mov R3,a
mov R4,#5
; ---------------------------------------------------------------------------
mov DPTR,#XRAM_TX_BUFF
looop_seend:
movx a,@DPTR
inc DPTR
acall for_coooooom0
djnz R4,jmp_not_5byte
jnb bit_RX0,$
clr bit_RX0
;18/12/2018
mov time_confirm,#65 ;New timeout 50mS
looop_waitconf:
jb time_confirm.7,jmp_no_answer
jnb bit_RX0,looop_waitconf
;clr pin_scl ;TEST PULSE!
mov a,SBUF
xrl a,R3
;setb pin_scl ;TEST PULSE!
jnz jmp_no_correct_answer ;18/12/2018
;pause for next byte 17/12/2018
mov R7,#0
djnz R7,$ ;~260mkSec
djnz R7,$ ;~260mkSec
djnz R7,$ ;~260mkSec
jmp_not_5byte:
clr c
mov a,length_send_to_simL
subb a,#1
mov length_send_to_simL,a
mov a,length_send_to_simH
subb a,#0
mov length_send_to_simH,a
orl a,length_send_to_simL
jnz looop_seend
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
jnb bit_RX0,$
clr bit_RX0
jmp_no_answer:
clr i2c_write_done
ret
; ---------------------------------------------------------------------------
; ---------------------------------------------------------------------------
;18/12/2018
jmp_no_correct_answer:
clr EA
clr i2c_write_done
mov DPL,pointer_RX1L
mov DPH,pointer_RX1H
mov a,SBUF
movx @DPTR,a
inc DPTR
mov pointer_RX1L,DPL
mov pointer_RX1H,DPH
clr pin_scl
mov time_data_read,#52 ;52/1302Hz = 40mS
inc length_answer_simL
mov a,length_answer_simL
jnz $+2+2 ;2
inc length_answer_simH ;2
setb EA
ret
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
control_ATR:
jbc bit_generate_ATR,$+3+1 ;3
ret ;1
; ---------------------------------------------------------------------------
clr pin_RST
;acall clr_buffer
; Add rezet pause 17/12/2018
mov R6,#200
looop_pause50mS:
djnz R7,$ ;~260mkSec
djnz R6,looop_pause50mS
;Prepare to answer 11/03/2019
acall clr_buffer
mov length_answer_simH,#0
mov length_answer_simL,#0
mov pointer_RX1H,#HIGH(XRAM_RX_BUFF)
mov pointer_RX1L,#LOW (XRAM_RX_BUFF)
mov pointer_RX2H,#HIGH(XRAM_RX_BUFF)
mov pointer_RX2L,#LOW (XRAM_RX_BUFF)
setb bit_first_ATR
setb pin_RST
ret
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
for_coooooom0:
clr bit_RX0
mov c,P
mov TB8,c ;9bit parity
mov SBUF,a
jnb bit_TX0,$
clr bit_TX0
mov R7,#100
djnz R7,$
ret
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
clr_buffer:
mov DPTR,#XRAM_RX_BUFF ;Receive SIM buffer 192+192 = 384b
acall clr_192buffer ;06/12/2022
; ---------------------------------------------------------------------------
clr_192buffer:
mov R7,#192
clr a
looop_clr_bufff:
movx @DPTR,a
inc DPTR
djnz R7,looop_clr_bufff
ret
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
;for_coooooom1:
; mov SBUF_1,a
; jnb TI_1,$
; clr TI_1
; ret
;
; ---------------------------------------------------------------------------
; ===========================================================================
; ---------------------------------------------------------------------------
end.
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