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RFID-RC522是一个淘宝上比较常见的一个识别RFID的一个模块。他可以做到对RFID的读写。MF RC522 是应用于13.56MHz 非接触式通信中高集成度读写卡系列芯片中的一员。是NXP公司针对“三表”应用推出的一款低电压、低成本、体积小的非接触式读写卡芯片,是智能仪表和便携 式手持设备研发的较好选择 ##RFID读写卡的过程 读写卡主要有五个步骤:寻卡,防冲突,选卡,认证,读/写卡。 ###寻卡 - <font face="微软雅黑" size="3">// REQ_ALL代表寻天线区内所有卡,TagType为返回的卡的类型* y# r; E x1 {2 I( y1 [
- status= PcdRequest( REQ_ALL , TagType );</font>
复制代码TagType返回的卡类型有: 0x4400 = Mifare_UltraLight 0x0400 = Mifare_One(S50) 0x0200 = Mifare_One(S70) 0x0800 = Mifare_Pro(X) 0x4403 = Mifare_DESFire ###防冲突 - <font face="微软雅黑" size="3">
& O J; m" k7 S% c3 K - if(!status)
; m5 M9 i0 f+ x/ P - {
1 p7 F1 w! N$ @ - status = PcdAnticoll(SelectedSnr);
- |( {- g8 K k( D z/ T% ~+ | - // ......# m) l9 t+ o/ ~# c" M9 C' j
- }</font>
复制代码###认证 - <font face="微软雅黑" size="3">if(!status)
7 Y1 |3 D/ k3 t S8 @4 g - {
, r9 y! M. P& _1 q - // 认证
0 Q. m; J$ R* ?; \0 r# v - snr = 1; // 扇区号1- O1 [) l* D) ~
- status = PcdAuthState(KEYA, (snr*4+3), DefaultKey, SelectedSnr); // 校验1扇区密码,密码位于每一扇区第3块( J( _* G _7 C2 P! V
- // ......* j4 k: g3 r/ t. O! a( M
- }</font>
复制代码四个参数分别是:验证A密钥,块地址,扇区密码,卡序列号 ###读写卡 - <font face="微软雅黑" size="3">
/ \; q$ J, v- `3 ] - if(!status)
% E0 Y, S2 O& |& I% N0 p: y: x; C - {+ a1 i( S! {. l8 z6 o- Y2 Z9 M
- //读写卡5 g, [0 k" ~& F' G. G
- status = PcdRead((snr*4+0), buf); // 读卡,读取1扇区0块数据到buf[0]-buf[16]4 [$ `9 K) O4 U7 b+ H, \6 c
- status = PcdWrite((snr*4+0), "way2"); // 写卡,将buf[0]-buf[16]写入1扇区0块
3 }1 N( P1 D+ r5 y - if(!status) $ ]. u$ ]) H0 H1 h) C1 _
- {% ~1 m$ X: s4 A$ v4 a
- //读写成功
( U! N! e; ~: C6 C4 K3 }; D - printf("read finish!\n");: U* [5 @ J1 Q
- printf("读到的值是: %s\n",buf);8 l2 L! l( ~2 o
- WaitCardOff();$ F" `% H9 R% m. V- `/ U! l4 m% F8 V; c
- }4 o- ]8 W7 R$ P- h/ h- |
- </font>
复制代码##代码 以下为核心代码: main.c - <font face="微软雅黑" size="3">
o M8 ~4 x3 H% Y0 ^ - #include "stm32f10x.h"
- ?" l& ~; e; p2 L C3 B - #include "delay.h"
+ `0 g% d9 _ z - #include "bsp_usart.h", s T& e6 h) J' o
- #include "RC522.h"4 s+ w) w& i: d8 x" O% U
-
$ ^6 Y: T. |& W0 Z* G9 Q' b7 o - int main()5 O* \7 C4 n: Y4 U' B& |
- {
% j+ L" i% t; t$ i5 o2 y% @ - char status;
( Y4 ?$ O+ H- s - unsigned char snr, buf[16], TagType[2], SelectedSnr[4], DefaultKey[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
5 x4 B9 x) k1 z5 s8 K - 5 L& D( g, f4 U7 a1 y& N% K" O
- delay_init();
* i. D0 f; [* _# Z+ `6 D - usart_init();
' k n+ ~. A8 }. H8 E, H. ~ - 5 ~+ k. }( H, T" Q# P& y
- PcdInit();
' Z8 k5 d6 r1 `7 ~- }: u2 D - PcdReset();4 P t$ L" I; m6 n9 G
- PcdAntennaOff();
3 G: ~, j @( w6 i0 e$ H# j1 A; _ - PcdAntennaOn();
+ G7 [8 K3 r/ g3 p' ?2 v" W/ ?* r - M500PcdConfigISOType( 'A' );3 V# E6 y" B4 z7 r
-
. n6 J( e, l. p6 F1 _+ f - printf( "init over!\n" );: v6 y0 l& Y: }: |* g) Q3 _
- while(1){/ E: J6 w2 Z/ V+ m! s$ I F
- // 寻卡
% m! u4 Q- P3 c9 S) g6 G - status= PcdRequest( REQ_ALL , TagType ); // REQ_ALL代表寻天线区内所有卡。TagType为返回的卡类型 \- }' T( e! V: w, x! [
- if(!status)
. l! Z7 m) N, ~# X' L, H% A' [% o - {
3 \7 O& \9 @1 \+ h( y - // 防冲突
' K7 v* t8 O+ F+ E - status = PcdAnticoll(SelectedSnr);4 D+ n- H+ J7 Q% ^. @7 u
- if(!status)
& l) i- t, t6 B1 u9 C6 v - {$ q; z3 ^9 b1 L) M+ Q) w; I
- // 选卡" ?# G# s; P) @" e
- status=PcdSelect(SelectedSnr);! e3 t1 Q; y# Y. g' z$ w* F8 ~
- if(!status)8 {. U" q( Z1 u0 n4 A4 \
- {
7 `3 K4 \. H6 X1 T - // 认证& ^: f p3 W. M! U
- snr = 1; // 扇区号1- n* B: I1 ], ?2 Y$ Q
- status = PcdAuthState(KEYA, (snr*4+3), DefaultKey, SelectedSnr); // 校验1扇区密码,密码位于每一扇区第3块
# C% v g" O. X: h1 d - // 验证A密钥,块地址,扇区密码,卡序列号; y0 Y2 Q k8 J/ j" t: a
- {* u/ `# E$ i' u: q# X2 j
- if(!status)
' m8 U0 A2 l% Y5 W; f" l - {7 e2 V0 ?: ^; m2 Z3 Z0 f% B3 n$ j4 D
- //读写卡
6 x4 N) R% [* w3 T - status = PcdRead((snr*4+0), buf); // 读卡,读取1扇区0块数据到buf[0]-buf[16]
( J8 @4 w7 c8 { j8 L" t. Y - // status = PcdWrite((snr*4+0), "way2"); // 写卡,将buf[0]-buf[16]写入1扇区0块+ v7 n! G0 y: A& A4 R
- if(!status)
: J m9 f. z4 F3 z$ h: d - {
& a. i: p% D9 d; ^# K - //读写成功
5 D& ]2 x5 o l G' @; q - printf("read finish!\n");
! O5 |4 k: ^5 ^% `: O; i - printf("读到的值是: %s\n",buf);
/ h) K) p) D. n( I3 H# y - WaitCardOff();/ R$ r6 t! l) \6 Q* Y
- }
6 F" ^# e R' S% e - }
; D9 N( m. N4 Z; g3 _ - }
9 s1 o% t/ d: b+ m& g0 I* R% ^& K7 j- X - }
9 {8 h. g0 {# n" @ - }8 C$ }1 c9 A4 J; h
- }
+ E6 R+ f9 v2 i9 _% E* I2 I - }4 |& n* r- o9 m
- }2 I9 g/ r* j2 B0 S# r1 m$ E
- </font>
复制代码RC522.h - <font face="微软雅黑" size="3">, c6 Q3 F. h- s, K* s; c
- #ifndef __RC522_H3 c: j/ {$ n- T) m
- #define __RC522_H
3 [$ S7 t5 @7 }2 ^3 J$ Q - $ u8 K% @6 R( T# H! b( e2 j
- #define MF522_RST_PIN GPIO_Pin_11
\$ V6 s; q* Q- G% Z% o/ G6 i - #define MF522_RST_PORT GPIOB
5 @8 d5 u# l" o" I" X - #define MF522_RST_CLK RCC_APB2Periph_GPIOB
: R3 E1 P# h2 w- ]' Y -
, _+ h2 \! M& V* y5 g" U. O) ? - #define MF522_MISO_PIN GPIO_Pin_10+ q" z, H* x) ~) t+ H) f$ v2 I" t
- #define MF522_MISO_PORT GPIOB$ Q2 F, s5 ~$ z* h' ?, \
- #define MF522_MISO_CLK RCC_APB2Periph_GPIOB
% G0 [; d( V) m# f. l - * l, ^9 J. k q" v
- #define MF522_MOSI_PIN GPIO_Pin_10 T7 z3 n2 d1 P2 O. ]
- #define MF522_MOSI_PORT GPIOB
+ ]. d' U; Y# b! H8 t - #define MF522_MOSI_CLK RCC_APB2Periph_GPIOB
2 s9 C) S4 e- u8 R0 G# u -
# G% x0 ~$ x9 @7 |$ q - #define MF522_SCK_PIN GPIO_Pin_03 v! }" e7 Z. p
- #define MF522_SCK_PORT GPIOB
* N; ^4 b$ e! W1 _, _. r A2 T8 d - #define MF522_SCK_CLK RCC_APB2Periph_GPIOB
! h7 w0 d0 V- \# A -
/ z) K" | o+ o* t7 W, N - #define MF522_NSS_PIN GPIO_Pin_7
0 s ~# B. A4 c4 l& p6 s - #define MF522_NSS_PORT GPIOA
8 \8 f8 ^, V5 [* O3 e$ X - #define MF522_NSS_CLK RCC_APB2Periph_GPIOA
# H- Y; j2 {$ {- y a, J, E* M - 7 g- x. r# [- P# e8 N; D7 c" E
- #define RST_H GPIO_SetBits(MF522_RST_PORT, MF522_RST_PIN)3 _! @# U9 I5 L6 G$ [! w! S" t2 e
- #define RST_L GPIO_ResetBits(MF522_RST_PORT, MF522_RST_PIN)
3 y3 S+ n z3 U: m+ c6 k$ Z - #define MOSI_H GPIO_SetBits(MF522_MOSI_PORT, MF522_MOSI_PIN)
, Z3 v/ i$ n# l2 ~) S; _8 @ - #define MOSI_L GPIO_ResetBits(MF522_MOSI_PORT, MF522_MOSI_PIN)
9 J A8 w( L, J" S- c - #define SCK_H GPIO_SetBits(MF522_SCK_PORT, MF522_SCK_PIN)
6 e% @0 v" z- ? - #define SCK_L GPIO_ResetBits(MF522_SCK_PORT, MF522_SCK_PIN)
* Z6 C! i$ O" x5 }9 |# e' z - #define NSS_H GPIO_SetBits(MF522_NSS_PORT, MF522_NSS_PIN)
" R3 p; t3 K0 |: c# i" G - #define NSS_L GPIO_ResetBits(MF522_NSS_PORT, MF522_NSS_PIN)
& b7 \) o. z, W9 g8 e6 W - #define READ_MISO GPIO_ReadInputDataBit(MF522_MISO_PORT, MF522_MISO_PIN)
1 M4 b( o- C ], ~4 K -
/ Q$ d- L4 U# \5 { - // 函数原型* o* x# v" T' c" @% k
- void PcdInit(void);% u+ s* @3 b% ?7 f9 \6 t) {
- char PcdReset(void); n* ]1 J. e. c( ]9 N3 y
- void PcdAntennaOn(void);+ w: l) f* w$ U) U Y+ }
- void PcdAntennaOff(void);
" h5 Y& Q1 V% w! A/ T - char PcdRequest(unsigned char req_code,unsigned char *pTagType);- J+ ]& n1 Z" p
- char PcdAnticoll(unsigned char *pSnr);$ ?2 s/ u5 i) a8 k
- char PcdSelect(unsigned char *pSnr);- w& }1 {$ g- Q: |8 X9 H. T2 y
- char PcdAuthState(unsigned char auth_mode,unsigned char addr,unsigned char *pKey,unsigned char *pSnr); B$ G9 C' D" `, i5 _( X
- char PcdRead(unsigned char addr,unsigned char *pData);
" d+ z. O2 e4 h% x# q0 C! {* r2 o& t - char PcdWrite(unsigned char addr,unsigned char *pData);: V+ q- ?/ B; t7 G% c
- char PcdValue(unsigned char dd_mode,unsigned char addr,unsigned char *pValue);
" E8 j9 I! I* a7 p, [ - char PcdBakValue(unsigned char sourceaddr, unsigned char goaladdr);
1 z, t& K- F9 n0 o. G- ^ - char PcdHalt(void);
& T. A, ]* F6 E; t0 x - char PcdComMF522(unsigned char Command,
: m1 }& m% `3 m" o1 Z b& C. }- a - unsigned char *pInData, ! q9 `: @) w7 q: G3 I; r# u: p5 s# k
- unsigned char InLenByte,
1 E* ^0 l2 ^# |/ p1 _% b - unsigned char *pOutData, + J% e2 |4 i: E6 L0 O
- unsigned int *pOutLenBit);
1 q. Q% f4 B: |' o3 M - void CalulateCRC(unsigned char *pIndata,unsigned char len,unsigned char *pOutData);
+ ^4 b0 l0 ~/ }' o1 T - void WriteRawRC(unsigned char Address,unsigned char value);1 O1 ?, k$ M1 w! l. S. R }# l
- unsigned char ReadRawRC(unsigned char Address);
# R8 L6 f: {& K2 C/ S - void SetBitMask(unsigned char reg,unsigned char mask);
8 I$ ~3 x# l# S% X& ^ - void ClearBitMask(unsigned char reg,unsigned char mask);
( {) r1 M/ x2 h* t& e - char M500PcdConfigISOType(unsigned char type);
$ n$ X6 V4 g" Q; n; o& D" s - void delay_10ms(unsigned int _10ms);% m* ]- b; K4 p/ Q2 ~& }
- void WaitCardOff(void);
7 Q4 A% H- P- b. @# P3 ?" p/ r4 o - " L/ W( j0 i3 U) e) P* i
- // MF522命令字
4 V2 B, D: n3 N: I5 _ - #define PCD_IDLE 0x00 //取消当前命令3 O, A9 ]+ {: D# \, m
- #define PCD_AUTHENT 0x0E //验证密钥$ Z9 r- q! ]7 Y+ D
- #define PCD_RECEIVE 0x08 //接收数据# v! A0 c# M. C. s, Q
- #define PCD_TRANSMIT 0x04 //发送数据4 I# Q' L, K' ]/ j, d* H
- #define PCD_TRANSCEIVE 0x0C //发送并接收数据
$ e& Y7 R% i' N1 h2 j4 A) | - #define PCD_RESETPHASE 0x0F //复位& m8 n2 `7 B6 H
- #define PCD_CALCCRC 0x03 //CRC计算$ _: l( I: {7 @" Q( S
- ; t0 u! G+ k8 e+ ~0 E" L
- ! ]9 K4 ?" A3 k+ R( l" K+ `
- // Mifare_One卡片命令字+ q1 E& J$ \- z% x
- #define PICC_REQIDL 0x26 //寻天线区内未进入休眠状态
& X$ R3 ~ d ~ - #define PICC_REQALL 0x52 //寻天线区内全部卡
! N7 ~; ?) I8 j3 Y" i% ` - #define PICC_ANTICOLL1 0x93 //防冲撞
. u6 a3 I; j# p - #define PICC_ANTICOLL2 0x95 //防冲撞4 `1 `7 _" a6 u; `- R. O( v5 o4 o
- #define PICC_AUTHENT1A 0x60 //验证A密钥" P6 k( j7 T! t) h
- #define PICC_AUTHENT1B 0x61 //验证B密钥
6 l+ h* Z" l, I0 @3 Z( J+ i4 c - #define PICC_READ 0x30 //读块9 l n" y9 G& g1 I8 I' w: ]! t
- #define PICC_WRITE 0xA0 //写块2 e8 {1 s2 x2 Z; V8 M6 D. P* E8 [
- #define PICC_DECREMENT 0xC0 //扣款/ S3 O( c& {/ z" I6 ~; j2 H
- #define PICC_INCREMENT 0xC1 //充值
+ D' R* T, ?9 l6 P. H3 C7 D. m, ^4 \ - #define PICC_RESTORE 0xC2 //调块数据到缓冲区# c& X1 l. i" [- `9 n
- #define PICC_TRANSFER 0xB0 //保存缓冲区中数据
* T! j* x$ {7 [. a& x+ q - #define PICC_HALT 0x50 //休眠
! @3 B$ l3 R# ^: L/ T -
, a# y: X" Z- _: F3 Z! z1 i- }% j - // MF522 FIFO长度定义
, E+ D+ W9 p/ Y, [/ y$ }1 ] - #define DEF_FIFO_LENGTH 64 //FIFO size=64byte
# ?6 k) Z$ L3 B' S' O- ]) a' D( m: w -
J5 B( c! h5 r4 h" [ U/ n5 C/ B - // MF522寄存器定义4 w4 O# x; o& _" I& T* b0 u, [
- // PAGE 0
7 Y9 ~+ u& S( N, t - #define RFU00 0x00 . n0 k8 H o# {3 O
- #define CommandReg 0x01
% Q A$ i: K# O" d2 q+ I* y; X- g3 l# z - #define ComIEnReg 0x02 ) f1 D/ l4 b, K$ z
- #define DivlEnReg 0x03
5 F& P% `9 R4 I& d M - #define ComIrqReg 0x04 3 S1 [/ v3 j% J
- #define DivIrqReg 0x05" g. O; e9 @6 A( b+ M
- #define ErrorReg 0x06
/ w. R( l: D) r( v; j8 O: X - #define Status1Reg 0x07 `% M c" s: h3 X2 L+ R% r
- #define Status2Reg 0x08 2 J) h! ?: C m7 x
- #define FIFODataReg 0x092 W1 r! f- B7 f
- #define FIFOLevelReg 0x0A3 K' `+ p! y- Y7 p/ d, ?/ V
- #define WaterLevelReg 0x0B
3 ]2 _: Z Q4 s8 U0 A5 r - #define ControlReg 0x0C5 g" k' U$ a+ t' I+ q4 N
- #define BitFramingReg 0x0D
$ }" R4 e) a/ G' B) [& h - #define CollReg 0x0E
+ p4 x4 }, h. B - #define RFU0F 0x0F
6 z9 s( i- @/ {7 m - // PAGE 1
0 H* N: A% N) b$ @9 X: g4 R - #define RFU10 0x10
( Y6 ~6 F' p* B* J D - #define ModeReg 0x11
* C$ F G$ ?8 b/ K8 z - #define TxModeReg 0x12, }7 W: H; T* c( Y2 o
- #define RxModeReg 0x13& ?0 |4 n+ Q. P, X
- #define TxControlReg 0x14
c2 \2 v! X9 a( A - #define TxAutoReg 0x15; h1 \/ E2 ?# X' e! T2 v, t" i
- #define TxSelReg 0x16
" Q) V( W7 x* H5 @+ x! i - #define RxSelReg 0x17+ ]) |; M! D# a8 f
- #define RxThresholdReg 0x18
/ ~, G g! w0 k- E3 O. T/ @4 C - #define DemodReg 0x19
e" t! _- G7 D# C0 S0 z - #define RFU1A 0x1A
+ F# y/ p: t) O" o, W - #define RFU1B 0x1B
$ K( C; q7 N3 z8 K; i7 [* a6 v - #define MifareReg 0x1C
7 s% ~4 O7 R% w0 E; \ - #define RFU1D 0x1D/ E3 \0 Q9 b {* G9 f$ x! n# \
- #define RFU1E 0x1E
: I' v6 M% h1 F4 u5 \) V* _ - #define SerialSpeedReg 0x1F
- ~, Z6 f; f3 ]4 v" `5 b8 v4 t - // PAGE 2 , e# J, v3 B/ U! R
- #define RFU20 0x20
1 P) j( C1 E2 J - #define CRCResultRegM 0x21% D) a& z9 d$ F/ i. y. t$ {1 z
- #define CRCResultRegL 0x22
6 M: S7 d3 _* V% Z: @! U - #define RFU23 0x23
8 m$ j: }$ a: @0 [. Z& H - #define ModWidthReg 0x247 P( R0 w% W4 R
- #define RFU25 0x258 U6 B5 l/ L# Q* ?/ { n' o; q b
- #define RFCfgReg 0x26
1 f3 z+ m/ K- t! G c - #define GsNReg 0x27! x4 m+ \5 m5 ~8 W, w; }
- #define CWGsCfgReg 0x28
`1 o7 c2 J0 Y - #define ModGsCfgReg 0x29
6 Y0 X5 n3 R9 s" ] - #define TModeReg 0x2A
# ?# h( s5 H' H7 X8 g+ r - #define TPrescalerReg 0x2B! f1 F, G' B3 H p' i# E9 _
- #define TReloadRegH 0x2C2 i$ o4 g" r: N# W8 v7 v4 Z
- #define TReloadRegL 0x2D9 j1 o" }0 a2 {8 f5 x
- #define TCounterValueRegH 0x2E
$ q- J' K T8 [, x) `' o6 N - #define TCounterValueRegL 0x2F
7 ^( y4 [! T/ S$ \ - // PAGE 3 ( ?7 |" v7 S1 y4 @+ c8 }6 D
- #define RFU30 0x30: s2 a, r9 ^$ `# a6 t, k
- #define TestSel1Reg 0x316 y1 e i) y# f2 g# V/ L
- #define TestSel2Reg 0x32
- F: E( j) ]' S3 K1 ~/ ? - #define TestPinEnReg 0x338 y q I6 y6 L
- #define TestPinValueReg 0x34
* s% R. G8 o9 O0 T% p - #define TestBusReg 0x35
2 i% C; ?, M6 j, a - #define AutoTestReg 0x36( x- h6 x8 [/ O t
- #define VersionReg 0x37
) L& x# C+ v4 ^- |: B; h# C - #define AnalogTestReg 0x38: O: L) A$ j3 v& a# D: f7 e6 @
- #define TestDAC1Reg 0x39 ; u; k$ l$ Q7 }3 \! s
- #define TestDAC2Reg 0x3A 3 u8 @. v+ d. d4 Q
- #define TestADCReg 0x3B
% D4 C' D9 G x* s - #define RFU3C 0x3C
) m/ j' j. }) j' d+ t& y/ h7 p: w$ s' s - #define RFU3D 0x3D
, O/ m7 x9 {2 w - #define RFU3E 0x3E
6 n( [3 A% m1 G$ q: y/ G - #define RFU3F 0x3F
. o6 L4 i& P$ j) H! [ - 8 M! c/ z* p c4 z
- - f @& m1 L6 T Y# y Z+ }. a
- #define REQ_ALL 0x52
8 P6 D0 R, @0 G1 y0 y# Y - #define KEYA 0x60# F) f) g) `8 w) c0 g
-
- Y2 _; ~9 ?; C- |: u2 Y G - // 和MF522通讯时返回的错误代码/ ~3 O2 R& G% u. @
- #define MI_OK (char)0
! g) |' G9 c E; ^ - #define MI_NOTAGERR (char)(-1)
7 e; W- b# o3 X9 ]9 W - #define MI_ERR (char)(-2)9 g1 J w0 O% K- {! a
- - O* w% S) N: C$ }
- #endif
" W* _$ x \9 E8 v* ` - </font>
复制代码RC522.c - <font face="微软雅黑" size="3">#include "RC522.H"& B, e6 _ v) O$ ^& O+ \
- #include "stm32f10x_gpio.h"
" Z8 D) B, _0 y! o% J) ~; J* H - 8 J: r8 U% U2 F% J0 X" n, M( c; i
- #define MAXRLEN 18 0 l8 S+ j k" c: b; M
- 0 M# A' J0 w1 O. T( Y0 I2 W3 c
- void PcdInit()
$ E% i! A- ?& ~( Z5 u# Z/ Q$ H* m - {9 Z( c# ?( C, B; ]
- GPIO_InitTypeDef GPIO_InitStructure;
( j Q, Y" b+ {! b. y+ Y - 7 j+ e8 N1 k- C* G7 ], j+ T- w
- /* Enable the GPIO Clock */
* a3 ^8 B& {2 @: x a - RCC_APB2PeriphClockCmd(MF522_RST_CLK, ENABLE);
, w6 c3 b/ o0 Q! K$ s. c -
7 a7 B" w- m( Y& I - /* Configure the GPIO pin */
- m9 i. a; J; n# j, C+ P! m: K6 v - GPIO_InitStructure.GPIO_Pin = MF522_RST_PIN;
% \ @1 {6 W, j! h% |/ G2 Y - GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
) f3 W3 R7 y. z& H/ i/ V2 T5 n6 y$ ] - GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
: ?8 V9 K1 B7 f - : Q) G1 E5 \2 T" _9 P3 ]
- GPIO_Init(MF522_RST_PORT, &GPIO_InitStructure);+ U9 M9 l( Q B" i
- . R M$ N; b" b, o; }* w& L5 j
- /* Enable the GPIO Clock */
4 l- ^+ i2 B' A$ ^) S/ ]0 ?4 S - RCC_APB2PeriphClockCmd(MF522_MISO_CLK, ENABLE);% q+ Y( w5 V+ h% ~1 ?% m9 i/ u: j
-
1 a. @* q: d" m& A5 P/ K - /* Configure the GPIO pin */# T# e \+ c' E- u; I
- GPIO_InitStructure.GPIO_Pin = MF522_MISO_PIN;/ k* Z' _* n7 {' ^
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;9 f5 i! P% }+ ^
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
# C- U* _1 u# n( r$ k+ d5 Q -
+ m$ A$ R2 Y8 f7 O0 b - GPIO_Init(MF522_MISO_PORT, &GPIO_InitStructure);
9 @2 ^/ n9 L/ d2 n - ! R' B7 q+ b4 \% G
- /* Enable the GPIO Clock */
- h9 x( Z* ~' X - RCC_APB2PeriphClockCmd(MF522_MOSI_CLK, ENABLE);
7 i! O$ U/ ~7 K/ h$ s6 v - . s3 q& m0 c" M4 {% F6 Y6 F8 F
- /* Configure the GPIO pin */
: I, _, A+ b, Y8 f T - GPIO_InitStructure.GPIO_Pin = MF522_MOSI_PIN;! b" |+ [/ ] B9 h
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;! A4 k T* U8 d' a ?
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
1 j. O4 O7 U+ K( f% {. g* V- v - ; U& q6 G/ t( ?! p: d5 R! u# g, D( K O
- GPIO_Init(MF522_MOSI_PORT, &GPIO_InitStructure);8 B8 T1 E. d& B7 L+ Q- N8 J7 p
- 6 v7 N. @$ f2 T! y$ W2 K# j
- /* Enable the GPIO Clock *// W4 {; k# k2 {7 Q3 w
- RCC_APB2PeriphClockCmd(MF522_SCK_CLK, ENABLE);
& f% n I: t$ B9 F" E A! @9 v) ` -
* y! d* n/ s& a' i6 q- M2 Q, }4 X - /* Configure the GPIO pin */
2 \. w, ~$ e2 h9 K. N - GPIO_InitStructure.GPIO_Pin = MF522_SCK_PIN;
$ F J. t& e8 q; a, q - GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
# o: [, l8 L7 d - GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;4 \# M0 M* T( A4 ?
-
0 Z1 R2 A4 _/ y3 f - GPIO_Init(MF522_SCK_PORT, &GPIO_InitStructure);
+ `) T! R1 ^: U( k' O/ K6 g - 6 ~ c# I9 x6 e2 D
- /* Enable the GPIO Clock */
7 ?( f9 |0 K! }, L9 t/ d1 r - RCC_APB2PeriphClockCmd(MF522_NSS_CLK, ENABLE);
) `3 ^3 R5 W6 S7 L% d6 l2 C6 o -
# I9 g5 U8 Q4 v, C$ u( M% _ - /* Configure the GPIO pin */% o6 t ]% q! g6 t/ A. N
- GPIO_InitStructure.GPIO_Pin = MF522_NSS_PIN;
7 F2 \; B9 v1 M - GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
- y3 Q1 n1 X: S# g& l0 Z# e% a- m - GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
/ d7 S4 u; r. y( [ - ) j! ~* }) C7 V6 u
- GPIO_Init(MF522_NSS_PORT, &GPIO_InitStructure);
* q3 o8 @0 e0 e+ J6 o5 o/ H - }+ a) y- N$ q" E' ?* T5 h7 o7 c2 U
- 6 Y+ \$ |( O8 _; c$ o4 `
- //功 能:寻卡
4 [9 ~2 M. |; S6 _& B' ? - //参数说明: req_code[IN]:寻卡方式
: h* Q) r) F/ b: E1 \4 u! N9 k - // 0x52 = 寻感应区内所有符合14443A标准的卡% O+ ]# c, ], |' N/ r: X
- // 0x26 = 寻未进入休眠状态的卡
: _/ k8 \2 a$ X* @* P! V. \: ^ - // pTagType[OUT]:卡片类型代码
" h# `% `0 b! r8 s% L - // 0x4400 = Mifare_UltraLight1 D: I2 c* s, [8 B# ~. h
- // 0x0400 = Mifare_One(S50)! N6 {8 i0 s( {3 z0 e0 G8 K
- // 0x0200 = Mifare_One(S70)
1 V4 q. _8 T! B. _ - // 0x0800 = Mifare_Pro(X)
, Q7 [ S) ^% v: `5 [ - // 0x4403 = Mifare_DESFire
$ f S( \& }1 G# x( B# r4 t! ? - //返 回: 成功返回MI_OK
7 n2 U. L% M9 g - char PcdRequest(unsigned char req_code,unsigned char *pTagType)
7 ~3 ~* l! v3 a) N; B8 E. I - {
% D! [- a `/ A9 w - char status; % S m: U" X5 r/ b8 I& w) p
- unsigned int unLen;7 [& G3 U" ~: I. B; g- J8 q
- unsigned char ucComMF522Buf[MAXRLEN]; . S5 e2 J) W4 m* _. G5 C4 l" V# I- R+ A" k
- // unsigned char xTest ;1 M: O* ?/ p+ ?
- ClearBitMask(Status2Reg,0x08);1 _0 r" M, R( ~; D, _- p
- WriteRawRC(BitFramingReg,0x07);
0 z0 c$ Q, n4 G8 C -
, {9 p5 x% p$ N+ |' i6 n - // xTest = ReadRawRC(BitFramingReg);
& f* ?: _2 |' M* B3 [ - // if(xTest == 0x07 )
! T: {- H( o7 p+ @7 D8 L' b - // { LED_GREEN =0 ;}+ N( s. N& B8 l
- // else {LED_GREEN =1 ;while(1){}}2 u/ L/ A) M$ K, z) y K6 ~
- SetBitMask(TxControlReg,0x03);% N% |" a) Q5 l- R% k1 } b9 I. n* `1 B
- " t; |* w9 t8 c& p4 m# ], V, L% J
- ucComMF522Buf[0] = req_code;
& `1 I& p" L! I9 q - 6 S( x' H8 T( y
- status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,1,ucComMF522Buf,&unLen);
, x4 P. w: i0 T; j - // if(status == MI_OK )
9 Q. {! q* P( V- ^/ o" Z - // { LED_GREEN =0 ;}% W# Z0 F! n/ J2 d8 u
- // else {LED_GREEN =1 ;}0 C& q8 a% s. t$ ^1 l
- if ((status == MI_OK) && (unLen == 0x10))8 W( c& ^/ I$ k3 \
- { 1 t& K+ S3 Z0 A( V# C
- *pTagType = ucComMF522Buf[0];
. X1 ~# e8 f. H6 z: X% I - *(pTagType+1) = ucComMF522Buf[1];4 k. G' K, h) B- O
- }. U5 P2 I" K: J3 _$ p4 ]
- else `& ]2 W) h7 `1 |) x9 P
- { status = MI_ERR; }# J2 n# p* {9 Q4 l! P$ ~4 T
- * [( |4 [; j$ c( p" m
- return status;) r7 T) V/ A3 `) g# U
- }* n- K& s3 v7 s0 d! y# ?
-
( l& t0 N b$ L' q6 r - //功 能:防冲撞* q1 y% i3 O, l1 w- j H' x
- //参数说明: pSnr[OUT]:卡片序列号,4字节
, P( |6 q P7 l3 \5 j! B - //返 回: 成功返回MI_OK( d8 x8 ~6 o3 o* X% r
- char PcdAnticoll(unsigned char *pSnr)
! [& W; \3 n. @ - {
7 i! N0 O7 l( v( | - char status;# v" ~" M0 x) T
- unsigned char i,snr_check=0;
9 w5 F% i# J* w) G. }7 r - unsigned int unLen;; N2 h+ H, o3 M" d @; q1 q
- unsigned char ucComMF522Buf[MAXRLEN]; ; R+ B( b1 m9 b9 j& K3 Y
-
- k8 s; H2 A6 M) F - % j! @7 ~* e T8 M. ]
- ClearBitMask(Status2Reg,0x08);- V7 u- v0 E1 q& }. m
- WriteRawRC(BitFramingReg,0x00);
4 Y' a- R$ @, t' |9 r4 g w6 Z - ClearBitMask(CollReg,0x80);
1 ?, w# ^4 ]' f8 {! ] -
* ~! H( p. ~+ t1 k$ K8 l+ ] - ucComMF522Buf[0] = PICC_ANTICOLL1;
+ @) P' n" L0 n' B# U' G! E8 D - ucComMF522Buf[1] = 0x20;
6 q; o& O* A6 i; u -
/ Q- K1 }3 s0 f. `& K- }7 m - status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,2,ucComMF522Buf,&unLen); \$ \& k2 t+ Z0 j
-
8 {0 Z; C/ n1 R5 p3 L8 O - if (status == MI_OK); N# b4 s& s6 A) a
- {4 r; F/ L1 Y; k) W2 `& A( X3 X
- for (i=0; i<4; i++)
% h6 D; J- r! ^9 @0 I - {
8 J. K7 \( C6 n! m - *(pSnr+i) = ucComMF522Buf[i];
: j3 O; D- L5 m8 g/ G: e- X0 c - snr_check ^= ucComMF522Buf[i];8 u& g) P+ w+ D2 J% C* i, Y) {5 [1 }
- }# g: }: H: I2 z0 p
- if (snr_check != ucComMF522Buf[i])2 C3 s+ R. J0 c! s5 E
- { status = MI_ERR; }
& k4 j8 ^! |9 S - }
! L% p1 R4 k6 S: T/ F, Y" J, _ - 7 a; F/ g2 a5 l
- SetBitMask(CollReg,0x80);* I% r) r9 c- k6 X/ K8 S
- return status;
& _+ u3 p1 W5 e# _* | - }
* L( [1 @+ Q' h1 t) v) z, b( O% x -
1 T* o9 R- M' y( Z* ?: W - //功 能:选定卡片- I! U% `) @! ~5 P. O% `8 _, z8 H& g
- //参数说明: pSnr[IN]:卡片序列号,4字节
& ^3 G% t3 l( O8 O( | - //返 回: 成功返回MI_OK4 T5 @! J8 d# |7 T$ L: F1 x
- char PcdSelect(unsigned char *pSnr)
2 M6 G% s b& J. l" q - {6 h! X: m4 ]+ J! Z y3 l4 x( m4 a
- char status;6 n% v/ D- W6 q6 Y, q* l8 V7 G
- unsigned char i;
0 e+ P0 Q4 i, N# [ - unsigned int unLen;
; h6 w9 j0 y; B! b/ f6 J f - unsigned char ucComMF522Buf[MAXRLEN];
+ L$ K2 p. g+ Q -
# T8 M, i' P( z- ~8 w3 T6 f$ ^0 D - ucComMF522Buf[0] = PICC_ANTICOLL1;* S4 h" I8 V" F" x1 Y
- ucComMF522Buf[1] = 0x70;
. |2 s& G( B1 o G - ucComMF522Buf[6] = 0;' v- V" ^3 l' e/ I: ^
- for (i=0; i<4; i++)& Z. h6 r( [: J9 }
- {
5 Y) Q$ s0 a4 _; }& R - ucComMF522Buf[i+2] = *(pSnr+i);
{1 v5 j$ R4 ^2 l - ucComMF522Buf[6] ^= *(pSnr+i);% h; B, H" o6 B$ ?; q t+ \" W/ i$ A
- }, ^- W6 ~$ h# z4 v
- CalulateCRC(ucComMF522Buf,7,&ucComMF522Buf[7]); F3 d0 O9 w- M3 H; j9 ^
-
8 [; F; p& R8 S2 w1 B' v6 A: r - ClearBitMask(Status2Reg,0x08);( a }6 G$ P. e! s6 c" W
-
5 D" w8 Q$ K3 x - status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,9,ucComMF522Buf,&unLen);6 R# F, m3 t8 s$ C
-
/ Y% [ r2 }0 v% N, i - if ((status == MI_OK) && (unLen == 0x18))7 J+ ~! I5 R& x9 F3 P# P* I. A; k
- { status = MI_OK; }
! o" \, N. w, r1 b, D - else }. r% ~8 u' E1 @5 B$ K
- { status = MI_ERR; }0 E# q. f* ?1 T" B, s
-
8 m1 a+ u2 I6 N( O) G - return status;( G9 g7 d( a/ x& T+ K6 Y- H9 n
- }
+ Z' M7 Y2 Z" E5 s -
, |' b7 F/ K. c% G; R - //功 能:验证卡片密码7 I8 s% n/ S; W/ u
- //参数说明: auth_mode[IN]: 密码验证模式
4 T: z* Z: Y8 k% G - // 0x60 = 验证A密钥* n1 W& z, P x. s- j) H
- // 0x61 = 验证B密钥 # e+ r! L7 W/ M- q
- // addr[IN]:块地址" m( ^9 r( e" k4 f9 g% h# ^# b! f
- // pKey[IN]:密码
# O+ a' Q3 Z) M( ^ - // pSnr[IN]:卡片序列号,4字节0 T3 `9 f4 }% j/ i( w6 r) K
- //返 回: 成功返回MI_OK
# z5 X" U$ \) ?* h/ @) A) z4 L - char PcdAuthState(unsigned char auth_mode,unsigned char addr,unsigned char *pKey,unsigned char *pSnr)
1 I* b. E& W- ]; C/ O - {
8 s N! ~ }6 N' {* v - char status;
- s) u5 a+ J6 J$ W - unsigned int unLen;2 d( q3 u t/ N/ O/ q! O( _, u
- unsigned char i,ucComMF522Buf[MAXRLEN];
* q# T$ h. V2 N) `7 B - 1 T, E6 h3 Q3 c- b2 \1 I; M
- ucComMF522Buf[0] = auth_mode;
1 E3 M3 O/ R! H h7 P7 d1 [( b - ucComMF522Buf[1] = addr;
: y- b4 S; N+ ]' Z4 S( K; {2 n - for (i=0; i<6; i++) W3 E* L f! u8 H5 e
- { ucComMF522Buf[i+2] = *(pKey+i); }. [0 K* m! z" o# C
- for (i=0; i<6; i++)
( V5 f7 V# m: y6 S' O" K - { ucComMF522Buf[i+8] = *(pSnr+i); }) f7 P1 d0 N) _) K( T( A2 Q" P4 r) O
- // memcpy(&ucComMF522Buf[2], pKey, 6); 9 z! j6 i4 [. X2 \8 Y
- // memcpy(&ucComMF522Buf[8], pSnr, 4); ( h" | @ [ E. X3 P3 l- u
-
8 D$ _- ~/ m1 J$ N$ P* H" S - status = PcdComMF522(PCD_AUTHENT,ucComMF522Buf,12,ucComMF522Buf,&unLen);" a: v/ ` v# K K3 J
- if ((status != MI_OK) || (!(ReadRawRC(Status2Reg) & 0x08)))/ \! h* J) T1 _- @+ w1 v( q# X
- { status = MI_ERR; }
$ X$ i* T8 s) B* F -
4 d, h h3 d4 Y5 ^2 w4 P6 I - return status;
) g- c* r2 k% }6 Q, y$ h - }8 L1 a: S! F5 w5 q" d
-
. s2 j5 [: C. _' ~ - //功 能:读取M1卡一块数据
@4 s) v$ a/ w1 ~* z% I: E - //参数说明: addr[IN]:块地址
/ I$ m) F4 |* H1 z - // pData[OUT]:读出的数据,16字节
3 Q5 a3 p$ e2 o1 @ - //返 回: 成功返回MI_OK; x/ o7 p* T$ o
- char PcdRead(unsigned char addr,unsigned char *pData)& C k% k* ^ V- y9 U
- {/ M6 W2 r% _1 v5 R, a
- char status;1 _9 N2 z/ i7 y
- unsigned int unLen;
: h& H. j+ w* K8 c: k: G4 t a! Y - unsigned char i,ucComMF522Buf[MAXRLEN];
3 H! r9 J% \5 y& u$ H -
' j& F4 G- f! I) `) L: _- n - ucComMF522Buf[0] = PICC_READ;
" l v8 Q7 \) y7 | - ucComMF522Buf[1] = addr;
: V- e2 p( G M. g3 c' r - CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);) f: N6 L: r9 p8 }& W
-
/ g! m) b& F! E/ F- } - status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);
# P3 w" V( |* L - if ((status == MI_OK) && (unLen == 0x90))5 e2 f( y* a9 }* m
- // { memcpy(pData, ucComMF522Buf, 16); }
Q0 z5 c/ ~' Q) D3 N8 S7 F - {3 z; {3 |7 r; A. a. H
- for (i=0; i<16; i++)* r3 X$ }" g# R6 s: x
- { *(pData+i) = ucComMF522Buf[i]; }* D& S( n* O- @7 r4 E& c
- }- S; c9 |, d% k1 `6 K
- else$ d6 p* T" E( [ d' O
- { status = MI_ERR; }! v; b* p. A# q8 u2 U/ P
- % N# U) }7 o( x5 o7 z' d0 T$ f
- return status;
# `9 d8 S2 x6 @5 \8 H' U/ s3 E; U - }
0 ~% s4 h: e, \/ x -
# A y! Q/ R# ~' |* ^- }- n8 b - //功 能:写数据到M1卡一块3 r& S i* f/ o: `2 d7 y2 N
- //参数说明: addr[IN]:块地址
9 v9 |6 ?/ |5 o% _ - // pData[IN]:写入的数据,16字节
- j1 O- n% i, E4 z - //返 回: 成功返回MI_OK
+ t- s5 J. }3 R+ E; \ K - char PcdWrite(unsigned char addr,unsigned char *pData)7 Q0 i0 z: s ^7 E/ U" ^
- {$ N0 |5 A5 z; o! L' e6 J" k& |7 f
- char status;
$ c' T: W% [5 E$ k - unsigned int unLen;7 L8 |; M2 v+ e4 p
- unsigned char i,ucComMF522Buf[MAXRLEN]; ' C3 k) t3 S Q/ u' Y" c
- $ ?& X b9 E9 T0 r q
- ucComMF522Buf[0] = PICC_WRITE;
P1 @$ q9 W' f - ucComMF522Buf[1] = addr;
# d8 C# u0 f" R7 y: Q. P - CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);
1 q7 r% e# }6 R8 N$ ~# i3 `/ f -
) E5 X. }' \& ~$ p- O - status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);* b" g* Q6 c5 _ [$ M
- ( i& m/ H+ W3 M# Y9 |" [) H( u% W
- if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A))/ [; Q' o3 ~5 x8 }9 t
- { status = MI_ERR; }- e- c( D+ W' \; o" }5 G! O
-
1 _+ |& H" a$ t8 E" v - if (status == MI_OK)
! Y5 k" D) e. ?; s$ T, K - {4 P5 K$ l) q' @ }9 q, a
- //memcpy(ucComMF522Buf, pData, 16);8 t }& v4 r+ M( \2 l* a+ c1 K7 l9 |
- : |- n( p$ N! I H, t( d" l
- for (i=0; i<16; i++)5 o0 W3 z7 N0 d3 o1 G5 z
- { ucComMF522Buf[i] = *(pData+i); }
+ H; t( [1 u( v: R/ W+ t M7 O - CalulateCRC(ucComMF522Buf,16,&ucComMF522Buf[16]);( d% Z! |5 Y @* E
- - Y# S, ?0 |3 O, \8 S
- status = PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,18,ucComMF522Buf,&unLen);; ? i2 t" P: X; Y- Y8 P
- if ((status != MI_OK) || (unLen != 4) || ((ucComMF522Buf[0] & 0x0F) != 0x0A)); O; W8 L7 s. A# X
- { status = MI_ERR; } T) }/ B+ P1 t. c
- }8 t; a8 I6 Z0 Z: u; l8 ?% `# v) O
-
# g% w# G" Z) \" Q/ y$ z8 p - return status;) ?7 b: b+ p9 D" [
- }
1 I* ]3 [& Q, v1 _' ^/ n1 ^ - ( R& q: q' A" ]3 W Y6 i8 K
- //功 能:命令卡片进入休眠状态
' R6 j8 R" _6 _% Z8 P; N - //返 回: 成功返回MI_OK
# M1 Y* C% y( u+ h' X3 Z( { - char PcdHalt(void)! D5 |4 w: R0 \& t0 W
- {8 z$ @9 x$ p; ]2 t0 ^2 W7 M# ~) g3 F
- unsigned int unLen;
3 j" k5 Y2 r. O5 f9 u1 F) k - unsigned char ucComMF522Buf[MAXRLEN];
1 H8 {5 x# ?/ ~- S -
p" r' L0 c/ T* e: A8 _$ x. c, P - ucComMF522Buf[0] = PICC_HALT;: t" W" J1 Q0 [
- ucComMF522Buf[1] = 0;0 d! D6 ~8 `9 o! Q9 V+ J
- CalulateCRC(ucComMF522Buf,2,&ucComMF522Buf[2]);
. J6 o7 [- B: k" ^, q% C4 k9 x -
5 X! e+ ^5 p! B- }( p - PcdComMF522(PCD_TRANSCEIVE,ucComMF522Buf,4,ucComMF522Buf,&unLen);
( j, ?- _; v0 E- X# p& v+ H, Y- |- h -
/ Q! ]! p0 f/ ]! o3 m( J; s$ M3 d - return MI_OK;0 o: Z4 [3 T' {; m" {; O1 o' P+ s
- }$ h; U" J5 E( Q. }9 e2 C
-
$ E( ]# ?; o* u3 [) s$ [ - //用MF522计算CRC16函数5 c3 x4 h3 E" d7 O4 q# J
- void CalulateCRC(unsigned char *pIndata,unsigned char len,unsigned char *pOutData)9 B3 c$ X7 O& t# E7 g7 L
- {/ N; d# N9 b- |4 Z7 [! m3 A- t
- unsigned char i,n;
$ x7 k( z, w! V- O - ClearBitMask(DivIrqReg,0x04);6 z& f# J8 l8 |
- WriteRawRC(CommandReg,PCD_IDLE);, P5 i9 B9 U6 G% D3 x8 B
- SetBitMask(FIFOLevelReg,0x80);
4 \3 K: u( T% a) D3 Y' m" y - for (i=0; i<len; i++)8 [0 ]# V. I! v5 I0 F8 O/ L
- { WriteRawRC(FIFODataReg, *(pIndata+i)); }& U% ?3 s0 @0 h( N
- WriteRawRC(CommandReg, PCD_CALCCRC);
- h- q: p# I3 H2 n5 s - i = 0xFF;+ N3 A. S9 v# R, h4 v
- do
& N7 l3 C; k. \ - {
7 K2 m" \ g3 {3 g9 m5 P# ~ - n = ReadRawRC(DivIrqReg);. W7 V7 P" i" L' @! i& x% g
- i--;) a% E, U' K) w- c2 h
- }) ?4 V" A$ o( x) g5 ^
- while ((i!=0) && !(n&0x04));
% M6 Q! a! _/ j: g" r - pOutData[0] = ReadRawRC(CRCResultRegL);
2 G, @0 c! |6 C, x - pOutData[1] = ReadRawRC(CRCResultRegM);
# q8 N7 H) S, q+ k7 q' L - }3 _$ v) }5 `* S- c$ ?7 C# R
- . B4 q; {! z" I
- //功 能:复位RC522
+ \1 \: Y) i, ~7 J/ y! \ - //返 回: 成功返回MI_OK
# h/ L2 @5 G4 b$ P$ N: c - char PcdReset(void)& C( U6 j! ^ O& R+ v
- {
9 u" d9 ]. }3 e, k" Y- W0 N - RST_H;0 G% N+ ]' C+ Q5 p/ j& r
- delay_10ms(1);
* o- x! J$ [! |4 T. B7 M, | - RST_L;
2 D7 m9 ], N( K. p - delay_10ms(1);& f4 }2 D7 b$ }( Q# q1 l8 R; B
- RST_H; r. r+ r% H: y W9 G- O& O; U
- delay_10ms(10);' B2 A# s1 w1 ?" Q$ M
- $ x# q6 I4 f1 n+ [' P
- if(ReadRawRC(0x02) == 0x80); n J8 s9 U* X) @
- {2 G7 k- R( l4 R( G5 K
- }3 F3 S$ o/ V5 \0 x
- * g! E; l$ {) T! |% t7 A, H7 O9 H
- WriteRawRC(CommandReg,PCD_RESETPHASE);
1 p0 u, x( \! E G R9 X! \ - # z* E% [, q; p9 c9 n7 c* M0 P: I! x) F
- WriteRawRC(ModeReg,0x3D); //和Mifare卡通讯,CRC初始值0x6363
& @4 P' S$ e6 r8 _9 X - WriteRawRC(TReloadRegL,30);
9 c* W9 Y. W5 P8 t8 k - WriteRawRC(TReloadRegH,0);
' j2 x. ~" W. u# R" i - WriteRawRC(TModeReg,0x8D);: M+ a( O! {; ?: g! m# o! Y
- WriteRawRC(TPrescalerReg,0x3E);
* E' Y) D) G( Y( M - WriteRawRC(TxAutoReg,0x40); & G! _$ Q+ ^6 S2 g
- return MI_OK;
4 w3 Y5 J9 e4 S( X+ X - }
. O1 a" @3 @: ]& C( f2 ~) V j - 4 z% N2 _' ~8 T* Y
- //设置RC632的工作方式 0 Q8 E$ q0 |# J. v% W: v
- char M500PcdConfigISOType(unsigned char type)9 U& G4 _: F6 k7 D
- {7 T4 V/ {' d6 H# ?
- if (type == 'A') //ISO14443_A6 P3 M: V2 ~+ T8 F. T# P b
- { 7 g7 L6 S) Q1 _
- ClearBitMask(Status2Reg,0x08);
% `( D$ R3 U: a9 G1 J/ A -
4 I% I3 ~4 |: e/ C& F4 G( Q - /* WriteRawRC(CommandReg,0x20); //as default
, f9 L! G) c+ q9 g - WriteRawRC(ComIEnReg,0x80); //as default: }% ?+ e+ @; [; m
- WriteRawRC(DivlEnReg,0x0); //as default. d: h {/ s1 f6 i$ Q
- WriteRawRC(ComIrqReg,0x04); //as default# q( l( E5 a: i4 B7 ~* E. l
- WriteRawRC(DivIrqReg,0x0); //as default
% I4 g' {9 Z& @! \& x# N: a$ {+ \7 a - WriteRawRC(Status2Reg,0x0);//80 //trun off temperature sensor, t- } L% Q6 Z
- WriteRawRC(WaterLevelReg,0x08); //as default
& t, K4 D8 M; C* {2 C - WriteRawRC(ControlReg,0x20); //as default
4 B8 I5 B( m, G* R) D" M+ }. a - WriteRawRC(CollReg,0x80); //as default
! [7 L ?7 y. V% B - */
; y# N8 H( x0 E# u2 O9 W - WriteRawRC(ModeReg,0x3D);//3F
0 k0 Q0 i* b% R- a7 t4 g ^ - /* WriteRawRC(TxModeReg,0x0); //as default??? q$ u) p- R; _/ r' O
- WriteRawRC(RxModeReg,0x0); //as default???
8 s5 o- f- F1 Y$ l6 C& v - WriteRawRC(TxControlReg,0x80); //as default???
4 z i- N& y7 L- w8 A) U; J - WriteRawRC(TxSelReg,0x10); //as default???
& R+ [( j5 }$ o+ } - */! B# R9 L5 \1 R W: P
- WriteRawRC(RxSelReg,0x86);//84 J/ _% `5 t$ A" x# R
- // WriteRawRC(RxThresholdReg,0x84);//as default4 }" S4 ]& }" E4 y2 ^/ r
- // WriteRawRC(DemodReg,0x4D); //as default. p2 ~9 G% J! W3 U
-
( K9 N3 ?& M$ g; B' p! m9 }' |+ c - // WriteRawRC(ModWidthReg,0x13);//26
5 c9 A# ~9 W7 H9 d) y - WriteRawRC(RFCfgReg,0x7F); //4F
/ o5 |5 |; i+ o4 d- V - /* WriteRawRC(GsNReg,0x88); //as default???
' X i' w8 A; e" O - WriteRawRC(CWGsCfgReg,0x20); //as default???1 u9 a& U) i( \5 i8 m- l& o- f3 k
- WriteRawRC(ModGsCfgReg,0x20); //as default???% n& D1 @ }5 o% T
- */& G. |! v- V& S2 g) o/ ~
- WriteRawRC(TReloadRegL,30);//tmoLength);// TReloadVal = 'h6a =tmoLength(dec)
/ v& O9 X7 w" A$ m - WriteRawRC(TReloadRegH,0);# s* u) s) I8 }" }
- WriteRawRC(TModeReg,0x8D);
' p$ A/ b; Q9 @ - WriteRawRC(TPrescalerReg,0x3E);. D g. H4 n! y5 ] }( Y, D9 x
- }2 Z2 s. I6 F( W2 ?- c$ w8 A& @* N/ C
-
- O7 _% H$ e; A - // PcdSetTmo(106);3 h' ^8 l) B9 d7 p
- delay_10ms(1);
, l8 H2 N) M( @/ N+ X0 Y; k - PcdAntennaOn();
0 N ~1 ~' x' t9 s0 e( f6 W - }( f3 g" o8 J4 z) Q; |
- else{ return (char)-1; }7 K8 L$ [ {2 n4 K# K' J4 F* _
-
- j$ I e" D# s; ^; ^/ x: t - return MI_OK;
5 s/ I: u# y. y' o" A4 F - }
9 [% b H4 T6 ^. s. R( }0 R& \ - , q8 y3 `1 X" A3 _5 h
- //功 能:读RC632寄存器
3 D: K6 N$ k ` K' p' I' c8 } - //参数说明:Address[IN]:寄存器地址
0 y$ w6 o; R( h( U3 s - //返 回:读出的值& w" c4 w/ n# i0 \
- unsigned char ReadRawRC(unsigned char Address)
7 ]% q% x7 X% m! m2 K. e& m+ Q6 i - {" Q( u) A9 n: X6 u# T8 a
- unsigned char i, ucAddr;
3 x7 w* ]* ~ y7 [8 |# G - unsigned char ucResult=0;
' `1 Z1 F1 B. l7 I+ S - # o( D3 [* B, T6 h
- NSS_L;
5 h1 ? q _* K: ^! e, y, @ - ucAddr = ((Address<<1)&0x7E)|0x80;
* [/ z: E% v* s: Q6 m -
1 n% ?* f9 b) @2 D - for(i=8;i>0;i--). p4 A2 n- V2 ~) \2 ]0 k8 x
- {
4 G* V. z P. e7 h - SCK_L;
3 k# [' G/ B5 x& V& F1 o% b - if(ucAddr&0x80)
; S$ H: R( f: q$ l - MOSI_H;
2 T8 q; H, F, H$ m* @ - else
) d* @' U: E" B+ K/ W - MOSI_L;
* m t- Y( s4 J8 l$ G0 {( v - SCK_H;) ^ l9 H: \; ~! e
- ucAddr <<= 1;5 n" B! P. A; K* H/ c
- }
9 y4 K' j& {5 { - 5 `- ]6 M% Z1 Z* e! @) M
- for(i=8;i>0;i--)
0 L) o/ A- C" x! Q1 [. X - {/ g( W1 }7 T1 z' ~- m1 [
- SCK_L;
- N% X# z" U' ~0 s. t, W" R - ucResult <<= 1;
! Z( r a4 S; a - SCK_H;
1 v+ j0 |& B# g - if(READ_MISO == 1)
% }9 E k5 a/ P: x - ucResult |= 1;
4 R9 W+ \* S2 b - }: s8 f. j1 j5 U
-
5 g0 [: x' {6 |3 G! @# N - NSS_H;; P' x$ j' F/ L. H( O
- SCK_H;
2 z4 `9 C. g. L4 n - return ucResult;1 I( _4 i5 G, H) y
- }, R* b5 u5 m9 v) B. g# O
- ! M8 p4 F$ U$ }$ b; D8 K
- //功 能:写RC632寄存器
: l( o, u' Y6 T9 h& U" S' f- ^ - //参数说明:Address[IN]:寄存器地址
N5 C! j+ a% r1 L - // value[IN]:写入的值+ C$ S, i/ u, e/ D: \* B8 ?$ I, ^" R1 T
- void WriteRawRC(unsigned char Address, unsigned char value)* b+ n1 Y5 U" P' D E
- { , V. @6 ?7 o7 n) ?: a1 q$ m; |
- unsigned char i, ucAddr;, [" B, Q! ~ w; g0 X) F& n
- , Q$ L+ R7 c- ^$ H4 b3 H" A! y
- SCK_L;
/ d: s' Q5 J& }9 e% ? - NSS_L;
1 d/ |: n% j: @# j* t; { - ucAddr = ((Address<<1)&0x7E);
: J5 C( J3 E$ B; b - & |" a- j4 q9 g" _3 W I) g G8 F" X
- for(i=8;i>0;i--)3 F1 P& B+ Z3 G- Q. v8 n
- {5 J3 U( z; T; u: G, k# _ q
- if(ucAddr&0x80)
+ h9 d3 D4 E6 m5 E3 w) j% {0 d7 l U - MOSI_H;4 y3 @) D! h+ u* F) Y$ ?. Z8 r
- else' w0 |# A1 @; c* ?" c% E
- MOSI_L;
" ^0 U& Z6 E! _/ @ - SCK_H;, _, A. Y9 p# P k
- ucAddr <<= 1;. M* l4 D5 B [
- SCK_L;
! }# t6 a; y/ p; z - } o& _( C, F$ f! V8 |
- ! N; k x# K8 R* m
- for(i=8;i>0;i--)7 I7 w8 {* r) A0 j: H+ }7 c- X
- {
3 _ y! e) _% H1 l8 C1 Y7 O& J - if(value&0x80)4 x, v: ^; K, o$ t, M3 A
- MOSI_H;
( }+ }" f$ W, O5 W: b& ?" ] - else( t5 C5 G8 h& V
- MOSI_L;# M/ Z4 E7 j) a4 X
- SCK_H;
9 L& b9 |$ p* Y - value <<= 1;+ b+ f. }: u/ d' N
- SCK_L;
/ h( u. P. U* R* L1 J# x5 U - }# P: {( h6 T% Q$ G0 V8 d) n
- NSS_H;6 `$ O) E5 n- J0 s) U
- SCK_H;
9 C2 l) ?. D. ^8 W! ^- z - }
2 M, \" L# Z6 f- X - * T! R2 y7 h& @( G: e$ t- V+ _/ ]
- //功 能:置RC522寄存器位9 R8 E1 [! F0 q) ]
- //参数说明:reg[IN]:寄存器地址
7 ?8 [5 A( P* Z G- D - // mask[IN]:置位值9 O5 W# U" M9 E# t* g u
- void SetBitMask(unsigned char reg,unsigned char mask) ( ]- s5 K) K2 ]7 Q. i& R8 t
- {
( a7 L6 ?5 i& u7 S3 P6 v( C0 L. z - char tmp = 0x0;
7 U4 ^5 [1 R/ L$ U; o - tmp = ReadRawRC(reg);
% h |8 w# x2 Q' {) O - WriteRawRC(reg,tmp | mask); // set bit mask( {3 S: { u2 n+ B/ L" D
- }
6 b _ \. A8 @3 } x' b$ T: }8 C" ~- ? - - A7 L U6 G$ ~9 g0 v$ A1 V
- //功 能:清RC522寄存器位' c' _: S( V8 v# Z' l! D+ ~
- //参数说明:reg[IN]:寄存器地址
% h$ v+ [* K% r, s1 \9 g# O" { - // mask[IN]:清位值
& Y6 ^; e* k: s: P - void ClearBitMask(unsigned char reg,unsigned char mask)
, w- X2 x3 f* w* t/ g& S# L - { l1 S8 }! g6 ^& D. S) B2 \6 o
- char tmp = 0x0;6 s3 d" N: Z1 D3 u
- tmp = ReadRawRC(reg);
* w" C7 R4 j. c* u2 z- P0 c - WriteRawRC(reg, tmp & ~mask); // clear bit mask2 q, ]9 n3 t) E/ a
- } 4 P/ K! m+ m- t) L) d- M
- q0 s8 \% u4 `+ T2 _( U |
- //功 能:通过RC522和ISO14443卡通讯
' l( I K, H( B" F: v9 _ - //参数说明:Command[IN]:RC522命令字
& j3 n9 g% _& `$ W6 a5 o - // pInData[IN]:通过RC522发送到卡片的数据/ w1 z" N: [3 d! |7 @: @& m( F( [
- // InLenByte[IN]:发送数据的字节长度7 i$ X5 c% _( K1 g: H. c
- // pOutData[OUT]:接收到的卡片返回数据+ e+ A6 ?5 J5 ^/ \! g4 B% F
- // *pOutLenBit[OUT]:返回数据的位长度 K! O" Q" M0 K0 g5 p, P6 x
- char PcdComMF522(unsigned char Command,
& Y! l0 b# K9 y - unsigned char *pInData, & I# J; q5 c9 I/ o
- unsigned char InLenByte,
/ F/ _1 I2 ?1 C& J9 m, f - unsigned char *pOutData,
0 X) m3 x5 T7 v: x8 c( n$ T - unsigned int *pOutLenBit)
& ^6 Q1 z+ I2 a& U9 a7 ~ - {
+ t1 |! r+ R% x6 S - char status = MI_ERR;
% ]0 F9 |' p7 r: X0 N. y - unsigned char irqEn = 0x00;
- u; P' Q4 U/ [- E/ ` - unsigned char waitFor = 0x00;
" @0 R* H+ ]' H, _ - unsigned char lastBits;# j( a g7 a4 n* ?% V$ x
- unsigned char n;
$ I/ Q: K# F/ m - unsigned int i;
3 J5 m1 o+ I5 C! W3 y - switch (Command)& C( I% V- @4 q# N; |8 V
- {
. Y+ p6 L2 w8 H - case PCD_AUTHENT:/ F* g' D! U- P7 y0 F# o
- irqEn = 0x12; C9 z ~! T7 O2 p; G" X; b. N
- waitFor = 0x10;
/ v( `& z# w9 c8 L4 [% ^6 f - break;0 G$ H1 b8 i1 Q' ~( ^. `! t
- case PCD_TRANSCEIVE:6 C+ M/ V0 S; n- L. ?: g2 U
- irqEn = 0x77;1 i; w9 t! G( a2 U/ u8 ]1 S3 B! y
- waitFor = 0x30;
" N0 j+ l, ?6 e, {+ ? - break;) B9 O, A* r/ V" o1 y9 T; y$ u
- default:
, }, a; X0 P( o# @ - break;
1 a; N8 t; W: S7 O+ B- p - }
[' g. D X$ H A: R. Y3 X) u - + i8 p5 N0 u) m
- WriteRawRC(ComIEnReg,irqEn|0x80);
s& d, A. w- k' K# r: } - ClearBitMask(ComIrqReg,0x80);
7 m/ D5 R5 y6 |$ } - WriteRawRC(CommandReg,PCD_IDLE);
4 F1 H7 A5 q) ^ - SetBitMask(FIFOLevelReg,0x80);
e0 K8 ?; I; N3 w" o" R2 I: y - 9 w6 H( V/ |' x: l& q
- for (i=0; i<InLenByte; i++)
9 N1 U8 h6 Z5 d6 H$ \ - { WriteRawRC(FIFODataReg, pInData[i]); }
I4 l/ d! x" h" I" _) a9 ` - WriteRawRC(CommandReg, Command);# {- S' B: {- w5 ^% B: E/ G- d
-
0 p9 b, r c% \ - 6 [( \7 t6 H# F
- if (Command == PCD_TRANSCEIVE)( ]6 U# r. _. O- x' f9 I
- { SetBitMask(BitFramingReg,0x80); }6 q- }; X6 E6 ]& F
- ; D& N# h G; ^2 M7 F
- // i = 600;//根据时钟频率调整,操作M1卡最大等待时间25ms
. c4 X; H- u: e- I9 D6 v* y4 ~ - i = 2000;
! b: _ p( b! T9 m - do * Z% V" @: y6 \ x
- {
6 F( Z& K8 T0 y! A' M2 E+ c# _% R - n = ReadRawRC(ComIrqReg);& d' x L, Z) i- M0 T* `
- i--;
& r' r' w+ r! Q - }3 V4 G( Q" {! p! O. g! }: ]/ {1 f: m3 O
- while ((i!=0) && !(n&0x01) && !(n&waitFor));4 ?% C3 @7 q" y2 q
- ClearBitMask(BitFramingReg,0x80);: d% `3 t# i, @# A2 Z1 l
-
* @: C0 e: X6 i& I - if (i!=0)* M5 B' V$ x$ E: Y! F
- {
& q9 f# f& i" b, m" ^8 y1 O& w0 } - if(!(ReadRawRC(ErrorReg)&0x1B))
0 G9 o, z3 C/ Z - {
+ e; K& K. G: [+ U, F - status = MI_OK;
~% t. u ?3 d! `; `' l; x5 p2 T - if (n & irqEn & 0x01): p) d! A1 z( s p5 O6 S5 U
- { status = MI_NOTAGERR; }) T3 G7 H1 N# t5 x/ n. ~6 S- P
- if (Command == PCD_TRANSCEIVE)
) f3 V- ]! Z! s' q9 F' B - {
; j. `# }: _# E( L2 E - n = ReadRawRC(FIFOLevelReg);
' u7 n! }4 j l1 \ - lastBits = ReadRawRC(ControlReg) & 0x07;, p- {* J) [; O
- if (lastBits)' Y* G% K$ O4 Y) c
- { *pOutLenBit = (n-1)*8 + lastBits; }: o2 v: p& O! x1 `, o9 U
- else& p9 |7 }! P8 g8 M
- { *pOutLenBit = n*8; }
+ R# R" m3 o0 s! S3 B+ C - if (n == 0)
6 }: U9 s! d$ h( r% i: l2 t0 ~* m - { n = 1; }
% s' [! S% V. B6 @0 }" f - if (n > MAXRLEN)4 w$ V5 @) K" R* a2 _' ~6 J+ o5 E
- { n = MAXRLEN; }; e* X- T( Y7 U k% o
- for (i=0; i<n; i++) n0 ^1 W9 @" J7 {) H
- { pOutData[i] = ReadRawRC(FIFODataReg); }
) u+ d3 ^8 C' n, A% q - }
- @( Y3 k" g& A - }
7 A) H- f7 n! A! X - else
$ t# B. l8 n! z, g- n S - { status = MI_ERR; }( K! w9 m) H+ w' F
- 3 P8 O3 X% j2 x$ s% _
- }
9 G0 _8 ^' C' ] - 4 e& r7 d! q* A; n3 f3 ?
-
. s/ e( }# `: t# o7 p - SetBitMask(ControlReg,0x80); // stop timer now7 F8 B! v6 X- \0 P0 L
- WriteRawRC(CommandReg,PCD_IDLE);
4 L& L( H9 ? Y) Z) k! O k - return status;
# V; c0 a3 ~' Y! e5 _; U$ T9 C( B - }
% @+ @% m, V# i0 O - 1 D# K- h' s5 q
- //开启天线 4 P: S2 R/ j( c0 u
- //每次启动或关闭天险发射之间应至少有1ms的间隔
# a- ?- }. l$ H - void PcdAntennaOn()
0 l$ C: z$ p) Q: ~$ t# t% @. Y - {
: o- }' n/ q$ `6 p' J( J* U# k - unsigned char i;- P, x. o0 i, h# G; {; Z; U, q
- i = ReadRawRC(TxControlReg);
1 {4 K! b( q' ^; X - if (!(i & 0x03))( I# [0 ^. C+ h
- {
7 X' b; |' l1 O4 m5 S - SetBitMask(TxControlReg, 0x03);: z% L- q% j0 L9 Z6 X) R, I9 L
- }
: m6 ]8 d. d5 s' ?; B - }& ~5 |( | ]' s) `( z) W7 Q3 ~- U/ l
- 9 f% L. h/ ~6 u# ~/ _
- //关闭天线3 L* l+ j0 D! O; K e; t
- void PcdAntennaOff()
5 I2 v, Z' j; v: C0 o x$ A/ \3 f, X - {
) ^& m- _3 }) d V( v8 W" f z' t - ClearBitMask(TxControlReg, 0x03);+ v$ B1 X; a b0 ` Z( I' k( G
- }
7 \% v* W7 h0 `, ~ -
) b! m' y- e. P - //等待卡离开
1 I- q y( F& `( @4 v - void WaitCardOff(void) c3 G$ l+ c3 H/ ?* L
- {6 r& k! T+ x' J$ ?6 f
- char status;# |" U7 y8 w7 W! o+ I' h7 k
- unsigned char TagType[2];. L7 n4 r# C, l4 C9 V
- : _! a. E, r( v4 J6 y7 _9 E
- while(1)8 v W0 ^* w9 Q3 r9 S+ B* M
- {
" s5 y D& F W: G - status = PcdRequest(REQ_ALL, TagType);8 o. a. a' O2 }# O3 H6 W
- if(status)
" X a7 o4 G! K6 c2 C P - {
" N! \/ N$ Z; U( F+ o# u* f - status = PcdRequest(REQ_ALL, TagType);
* P/ N" {" u! ~3 x9 F - if(status)% B, K- L& \! B4 G/ Y8 H
- {, s1 s# x& w! L: v- m1 [4 U8 f/ t i
- status = PcdRequest(REQ_ALL, TagType);* H- M, i' F9 C* Y+ b2 i) j0 Y: B
- if(status)) ^: {" v2 i! P& V% ?/ h$ @
- {# i. s6 R/ [. I
- return;6 x$ M) w2 \; M9 |4 t
- }
* {3 S" L$ X0 \( p" @7 u - }; q/ l- v& r0 ^' X* o0 G
- }1 t n/ _+ s; N0 C' u. g. \
- delay_10ms(10);
, @7 K! `& T _$ W0 t& `9 R* o2 H - }4 U( O/ k& R, G" Z: w8 S6 u
- } n% L+ L8 U, m" H: e* G
-
8 L' f/ A* c9 W, X - // Delay 10ms
' p6 u) F" ^* b8 w4 @: D: G - void delay_10ms(unsigned int _10ms)
- d& L5 M; C0 Y, \7 d; L" v: s0 O# @+ Y2 i9 t - {& \! o. T6 k& Z" V' U' E
- unsigned int i, j;$ q6 Y( c& {: ]8 }
- % E& `" D3 a4 M$ ~, S" R3 Z
- for(i=0; i<_10ms; i++)1 M3 H2 @ w7 d% |
- {1 f) j5 d8 a& j
- for(j=0; j<60000; j++);0 ?, y0 k! i9 q+ I" b) z2 u3 y$ L
- }- z6 u4 J" K0 x) v0 ?+ z4 t. ^. T/ ?) K
- }</font>
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