chipcard.hpl

来自「schematic interface orange for eeprom pr」· HPL 代码 · 共 40 行

; Orange programmer module v1.1
; (c) 2000 Pazifist.
; CHIPCARD=SLE4432,PCB2032 (256x8),Blaupunkt Keycard.
; Two-wire Protocol ( S=10 )
; ATR (Answer to Reset ) = A2 13 10 91
; Some first 32 Bytes may be write protected !!!
; Tested !

; P0 -> CLOCK , P1 -> D I/O , P2 -> RESET 

SOCKET=0

PINO=CLK,0
PINO=SDA,1
PINO=RST,2
PINI=SDA,1

CDELAY = 15 ; one set delay

[INIT]
RST=1,SDA=0,CLK=0 ; reset chipcard
CLK=1,CLK=0,RST=0
SDA=1
LOOP=CONST(0,31){CLK=1,CLK=0} ; out of 32 ATR (dummy) bits
SDA=1
P=100

[READ]
SDA=1,CLK=0,CLK=1,SDA=0,CLK=0 ; start condition
CONST=00110000B
LOOP=CONST(0,7){SDA=I,CLK=1,CLK=0} ; out control byte
LOOP=ADR(0,7){SDA=I,CLK=1,CLK=0} ; out 8 address bits
CONST=0
LOOP=CONST(0,7){CLK=1,CLK=0} ; out 8 dummy bits
CLK=0,SDA=0,CLK=1,SDA=1,CLK=0 ; stop condition
P=100
SDA=1
LOOP=DATA(0,7){CLK=1,I=SDA,CLK=0} ; read byte
RST=1,P=50,RST=0 ; reset chipcard
P=100