Potrzebuję porady jak okiełznać przesyłanie dancyh pomiędzy AVR a kartą RFID Mifare 1k przy użyciu czytnika z allegro na chipie MF-RC522 - na forum było coś na ten temat ale niestety w bascomie a bascom rozumiem tak samo jak i chiński 
Poniżej s źródła tego co zostało znalezione i sklecone razem:
main.c
[syntax=c]/*
* main.c
*
* Created on: 17 lis 2014
* Author: Thor
*/
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#include <util/delay.h>
#include <string.h>
#include <stdlib.h>
#include <avr/sleep.h>
#include "SSD136/ssd1306.h"
#include "SSD136/GFX.h"
#include "SSD136/glcdfont.h"
#include "I2C_TWI/i2c_twi.h"
#include "SPI/SPI.h"
#include "MF_RC522/MF_RC522.h"
uint8_t SelfTestBuffer[64];
uint8_t byte;
uint8_t str[MAX_LEN];
int main(void){
DDRB |= (1<<PORTB0);//podtrzymanie przetwornicy ATB
PORTB |= (1<<PORTB0);//podrzymanie przetwornicy ATB
i2cSetBitrate(400);//OLED
ssd1306_init(SSD1306_SWITCHCAPVCC ,REFRESH_MAX);
clearDisplay();
spi_init();
mfrc522_init();
drawStr(30,5,"RFID v.1",1,0,1,0);
drawDisplay();
//check version of the reader
byte = mfrc522_read(VersionReg);
if(byte == 0x92){
drawStr(31,20,"MFRC522 v.2",1,0,1,0);
drawStr(40,30,"Detected",1,0,1,0);
}
else if(byte == 0x91 || byte==0x90){
drawStr(31,20,"MFRC522 v.1",1,0,1,0);
drawStr(40,30,"Detected",1,0,1,0);
}
else{
drawStr(19,30,"No Reader found",1,0,1,0);
}
drawDisplay();
byte = mfrc522_read(ComIEnReg);
mfrc522_write(ComIEnReg,byte|0x20);
byte = mfrc522_read(DivIEnReg);
mfrc522_write(DivIEnReg,byte|0x80);
_delay_ms(1000);
clearDisplay();
while(1){
byte = mfrc522_request(PICC_REQALL,str);
drawInt(0,0,byte,1,0,1,0);
if(byte == CARD_FOUND)
{
byte = mfrc522_get_card_serial(str);
if(byte == CARD_FOUND)
{
for(byte=0;byte<8;byte++)
drawInt(10,0,str,1,0,1,0);
drawDisplay();
//_delay_ms(2500);
}
else
{
drawStr(0,0,"ERROR",1,0,1,0);
drawDisplay();
}
}
_delay_ms(1000);
}
}[/syntax]
MF_RC522.c
[syntax=c]/*
* MFRC522.c
*
* Created on: 14 sty 2015
* Author: Thor
*/
#include "MF_RC522.h"
#include "../SPI/SPI.h"
void mfrc522_init()
{
uint8_t byte;
mfrc522_reset();
mfrc522_write(TModeReg, 0x8D);
mfrc522_write(TPrescalerReg, 0x3E);
mfrc522_write(TReloadReg_1, 30);
mfrc522_write(TReloadReg_2, 0);
mfrc522_write(TxASKReg, 0x40);
mfrc522_write(ModeReg, 0x3D);
byte = mfrc522_read(TxControlReg);
if(!(byte&0x03))
{
mfrc522_write(TxControlReg,byte|0x03);
}
}
void mfrc522_write(uint8_t reg, uint8_t data)
{
ENABLE_CHIP();
spi_transmit((reg<<1)&0x7E);
spi_transmit(data);
DISABLE_CHIP();
}
uint8_t mfrc522_read(uint8_t reg)
{
uint8_t data;
ENABLE_CHIP();
spi_transmit(((reg<<1)&0x7E)|0x80);
data = spi_transmit(0x00);
DISABLE_CHIP();
return data;
}
void mfrc522_reset()
{
mfrc522_write(CommandReg,SoftReset_CMD);
}
uint8_tmfrc522_request(uint8_t req_mode, uint8_t * tag_type)
{
uint8_t status;
uint32_t backBits;//The received data bits
mfrc522_write(BitFramingReg, 0x07);//TxLastBists = BitFramingReg[2..0]???
tag_type[0] = req_mode;
status = mfrc522_to_card(Transceive_CMD, tag_type, 1, tag_type, &backBits);
if ((status != CARD_FOUND) || (backBits != 0x10))
{
status = ERROR;
}
return status;
}
uint8_t mfrc522_to_card(uint8_t cmd, uint8_t *send_data, uint8_t send_data_len, uint8_t *back_data, uint32_t *back_data_len)
{
uint8_t status = ERROR;
uint8_t irqEn = 0x00;
uint8_t waitIRq = 0x00;
uint8_t lastBits;
uint8_t n;
uint8_ttmp;
uint32_t i;
switch (cmd)
{
case MFAuthent_CMD://Certification cards close
{
irqEn = 0x12;
waitIRq = 0x10;
break;
}
case Transceive_CMD://Transmit FIFO data
{
irqEn = 0x77;
waitIRq = 0x30;
break;
}
default:
break;
}
//mfrc522_write(ComIEnReg, irqEn|0x80);//Interrupt request
n=mfrc522_read(ComIrqReg);
mfrc522_write(ComIrqReg,n&(~0x80));//clear all interrupt bits
n=mfrc522_read(FIFOLevelReg);
mfrc522_write(FIFOLevelReg,n|0x80);//flush FIFO data
mfrc522_write(CommandReg, Idle_CMD);//NO action; Cancel the current cmd???
//Writing data to the FIFO
for (i=0; i<send_data_len; i++)
{
mfrc522_write(FIFODataReg, send_data[i]);
}
//Execute the cmd
mfrc522_write(CommandReg, cmd);
if (cmd == Transceive_CMD)
{
n=mfrc522_read(BitFramingReg);
mfrc522_write(BitFramingReg,n|0x80);
}
//Waiting to receive data to complete
i = 2000;//i according to the clock frequency adjustment, the operator M1 card maximum waiting time 25ms???
do
{
//CommIrqReg[7..0]
//Set1 TxIRq RxIRq IdleIRq HiAlerIRq LoAlertIRq ErrIRq TimerIRq
n = mfrc522_read(ComIrqReg);
i--;
}
while ((i!=0) && !(n&0x01) && !(n&waitIRq));
tmp=mfrc522_read(BitFramingReg);
mfrc522_write(BitFramingReg,tmp&(~0x80));
if (i != 0)
{
if(!(mfrc522_read(ErrorReg) & 0x1B))//BufferOvfl Collerr CRCErr ProtecolErr
{
status = CARD_FOUND;
if (n & irqEn & 0x01)
{
status = CARD_NOT_FOUND;//??
}
if (cmd == Transceive_CMD)
{
n = mfrc522_read(FIFOLevelReg);
lastBits = mfrc522_read(ControlReg) & 0x07;
if (lastBits)
{
*back_data_len = (n-1)*8 + lastBits;
}
else
{
*back_data_len = n*8;
}
if (n == 0)
{
n = 1;
}
if (n > MAX_LEN)
{
n = MAX_LEN;
}
//Reading the received data in FIFO
for (i=0; i<n; i++)
{
back_data[i] = mfrc522_read(FIFODataReg);
}
}
}
else
{
status = ERROR;
}
}
//SetBitMask(ControlReg,0x80); //timer stops
//mfrc522_write(cmdReg, PCD_IDLE);
return status;
}
uint8_t mfrc522_get_card_serial(uint8_t * serial_out)
{
uint8_t status;
uint8_t i;
uint8_t serNumCheck=0;
uint32_t unLen;
mfrc522_write(BitFramingReg, 0x00);//TxLastBists = BitFramingReg[2..0]
serial_out[0] = PICC_ANTICOLL;
serial_out[1] = 0x20;
status = mfrc522_to_card(Transceive_CMD, serial_out, 2, serial_out, &unLen);
if (status == CARD_FOUND)
{
//Check card serial number
for (i=0; i<4; i++)
{
serNumCheck ^= serial_out[i];
}
if (serNumCheck != serial_out[i])
{
status = ERROR;
}
}
return status;
}[/syntax]
MF_RC522.h
[syntax=c]/*
* MF_RC522.h
*
* Created on: 14 sty 2015
* Author: Thor
*/
#ifndef MF_RC522_MF_RC522_H_
#define MF_RC522_MF_RC522_H_
#include <stdint.h>
#define CARD_FOUND1
#define CARD_NOT_FOUND2
#define ERROR3
#define MAX_LEN16
//command set
#define Idle_CMD 0x00
#define Mem_CMD0x01
#define GenerateRandomId_CMD0x02
#define CalcCRC_CMD0x03
#define Transmit_CMD0x04
#define NoCmdChange_CMD0x07
#define Receive_CMD0x08
#define Transceive_CMD0x0C
#define Reserved_CMD0x0D
#define MFAuthent_CMD0x0E
#define SoftReset_CMD0x0F
//Page 0 ==> Command and Status
#define Page0_Reserved_1 0x00
#define CommandReg0x01
#define ComIEnReg0x02
#define DivIEnReg0x03
#define ComIrqReg0x04
#define DivIrqReg0x05
#define ErrorReg0x06
#define Status1Reg0x07
#define Status2Reg0x08
#define FIFODataReg0x09
#define FIFOLevelReg0x0A
#define WaterLevelReg0x0B
#define ControlReg0x0C
#define BitFramingReg0x0D
#define CollReg0x0E
#define Page0_Reserved_20x0F
//Page 1 ==> Command
#define Page1_Reserved_10x10
#define ModeReg0x11
#define TxModeReg0x12
#define RxModeReg0x13
#define TxControlReg0x14
#define TxASKReg0x15
#define TxSelReg0x16
#define RxSelReg0x17
#define RxThresholdReg0x18
#defineDemodReg0x19
#define Page1_Reserved_20x1A
#define Page1_Reserved_30x1B
#define MfTxReg0x1C
#define MfRxReg0x1D
#define Page1_Reserved_40x1E
#define SerialSpeedReg0x1F
//Page 2 ==> CFG
#define Page2_Reserved_10x20
#define CRCResultReg_10x21
#define CRCResultReg_20x22
#define Page2_Reserved_20x23
#define ModWidthReg0x24
#define Page2_Reserved_30x25
#define RFCfgReg0x26
#define GsNReg0x27
#define CWGsPReg0x28
#define ModGsPReg0x29
#define TModeReg0x2A
#define TPrescalerReg0x2B
#define TReloadReg_10x2C
#define TReloadReg_20x2D
#define TCounterValReg_10x2E
#define TCounterValReg_2 0x2F
//Page 3 ==> TestRegister
#define Page3_Reserved_1 0x30
#define TestSel1Reg0x31
#define TestSel2Reg0x32
#define TestPinEnReg0x33
#define TestPinValueReg0x34
#define TestBusReg0x35
#define AutoTestReg0x36
#define VersionReg0x37
#define AnalogTestReg0x38
#define TestDAC1Reg0x39
#define TestDAC2Reg0x3A
#define TestADCReg0x3B
#define Page3_Reserved_2 0x3C
#define Page3_Reserved_30x3D
#define Page3_Reserved_40x3E
#define Page3_Reserved_50x3F
//Card types
#define Mifare_UltraLight 0x4400
#define Mifare_One_S500x0400
#define Mifare_One_S700x0200
#define Mifare_Pro_X0x0800
#define Mifare_DESFire0x4403
// Mifare_One card command word
# define PICC_REQIDL 0x26 // find the antenna area does not enter hibernation
# define PICC_REQALL 0x52 // find all the cards antenna area
# define PICC_ANTICOLL 0x93 // anti-collision
# define PICC_SElECTTAG 0x93 // election card
# define PICC_AUTHENT1A 0x60 // authentication key A
# define PICC_AUTHENT1B 0x61 // authentication key B
# define PICC_READ 0x30 // Read Block
# define PICC_WRITE 0xA0 // write block
# define PICC_DECREMENT 0xC0 // debit
# define PICC_INCREMENT 0xC1 // recharge
# define PICC_RESTORE 0xC2 // transfer block data to the buffer
# define PICC_TRANSFER 0xB0 // save the data in the buffer
# define PICC_HALT 0x50 // Sleep
void mfrc522_init();
void mfrc522_reset();
void mfrc522_write(uint8_t reg, uint8_t data);
uint8_t mfrc522_read(uint8_t reg);
uint8_tmfrc522_request(uint8_t req_mode, uint8_t * tag_type);
uint8_t mfrc522_to_card(uint8_t cmd, uint8_t *send_data, uint8_t send_data_len, uint8_t *back_data, uint32_t *back_data_len);
uint8_t mfrc522_get_card_serial(uint8_t * serial_out);
#endif /* MF_RC522_MF_RC522_H_ */[/syntax]
1. Czytnik jest poprawnei wykrywany przez atmege co jest pokazana na wyświetlaczu
2. Pobranie "mfrc522_get_card_serial" skutkuje wyświetleniem "1 1423" - niby to serial karty ale dla 2 kart jest taki sam - więc to juz mnie zastanawia
I teraz najważniejsze:
1. Jak dobrać się do zapisu i odczytu poszczególnyhc bajtów. bloków i sektorów.
2. Jak zmienić NUID
3. Jak użyć autentykacji z użyciem kluczy oraz jak je zmieniać.
Przeglądałem libsy z arduino ale czarno to widze, na chwile obecną komunikacja już jest ale nie wiem jak dogadać się z kartą w kwestji konkretnych danych.
... nie potrzebuje ryby - wędkę poproszę o ile można Statystyki: Napisane przez mickeu — 16 sty 2015, o 00:01
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