?? main.c
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/****************************************************************************
* *
* File: MAIN.C *
* *
* Version: 1.0 *
* *
* Created: 21.06.2002 *
* Last Change: 22.06.2002 *
* *
* Author: Steven Jiang Chang *
* *
* Compiler: KEIL C51 uVision2 V2.23 *
* *
* Description: 89C52RD2-Firmware for MFRC500 Demo Serial Reader *
* *
****************************************************************************/
#define __SRC
#include "main.h"
#undef __SRC
#include <string.h>
#include <intrins.h>
#include <stdio.h>
#include <m500a.h>
#include <p89c51rx.h>
#define MIS_CHK_OK (0)
#define MIS_CHK_FAILED (-1)
#define MIS_CHK_COMPERR (-2)
// Function: mifs_request
#define IDLE 0x00
#define ALL 0x01
sbit RC500RST = P3^5;
sbit RC500_CS = P2^7;
sbit LED = P3^4;
//sbit LED = P3^4;
// Release Number of the Firmware
uchar code SW_Rel[] = "\n\r MFRC500 V1.0 22.06.02 \n\r";
// Serial Number of the MFRC500
uchar Snr_RC500[4];
static uint Crc;
// Local Prototypes
void init(void);
code Nkey_a[6] = {0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5};
code Nkey_b[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
/****************************************************************************
* *
* Function: main *
* *
* Input: - *
* Output: - *
* *
* Description: *
* *
* *
****************************************************************************/
void main (void)
{
unsigned char counter,counter2;
unsigned char mfout=2;//readbuf[16];
unsigned char tt1[2];
unsigned char status1;
unsigned char cardserialno[4];
unsigned char *sak1;
unsigned char blockdata[16];
init();
M500PcdConfig(); // Initialise the RC500
// must be call in the initialisation
PcdReadE2(8,4,Snr_RC500); // Read out the MFRC500 serial number and store it
M500PcdMfOutSelect(mfout);
for (counter=0;counter<20;counter++)
{
status1 = M500PiccRequest(PICC_REQALL, tt1);
if (status1==MI_OK)
status1=M500PiccAnticoll(0,cardserialno);
if (status1==MI_OK)
status1=M500PiccSelect(cardserialno,sak1);
if (status1==MI_OK)
status1 = M500PiccAuth(PICC_AUTHENT1A, cardserialno, 1, 4);
if (status1 ==MI_OK)
status1=M500PiccRead(4, blockdata);
for ( counter2=0;counter2<16;counter2++)
blockdata[counter2]=counter;
if (status1 ==MI_OK)
status1 = M500PiccWrite(4,blockdata);
}
}
/****************************************************************************
* *
* Function: init *
* *
* Input: - *
* Output: - *
* *
* Description: *
* *
* *
****************************************************************************/
void init (void)
{
RC500RST = FALSE;
RC500_CS = TRUE; // Enable the CS for RC500
CmdReceived = FALSE;
CmdValid = FALSE;
Quit = FALSE;
LLfReady = TRUE;
SendReady = TRUE;
Idle = TRUE;
RepCnt = 0;
RecvState = RECV_STX;
EnableTransferCmd = FALSE;
CheckByteCnt = BCC_CHECKBYTECNT;
#ifdef AUTODELAY
DelayRate = 0;
DelayRateLocked = TRUE;
#endif
PCON = 0x80; // SMOD = 1;
SCON = 0x50; // Mode 1, 8-bit UART, enable receiption
AutoBaud = TRUE;
TMOD = 0x20; // Timer 1, mode 2, 8-bit auto reload,
// Timer 0, mode 0, 13-bit counter
Capt_L = 0;
Capt_H = 0;
LED = OFF;
delay_10ms(50);
LED = ON;
IT0 = 1; // Config ext0 as edge trigger for RC500
EX0 = 1; // Enable ext0 interrupt for RC500
EA = TRUE; // Enable all interrupts
}
/****************************************************************************
* *
* Function: delay_50us *
* *
* Input: _50us *
* Output: - *
* *
* Description: *
* *
* Time delay with a resolution of 50 us. *
* *
****************************************************************************/
void delay_50us (uchar _50us)
{
RCAP2LH = RCAP2_50us;
T2LH = RCAP2_50us;
ET2 = 0; // Disable timer2 interrupt
T2CON = 0x04; // 16-bit auto-reload, clear TF2, start timer
while (_50us--)
{
while (!TF2);
TF2 = FALSE;
}
TR2 = FALSE;
}
/****************************************************************************
* *
* Function: delay_1ms *
* *
* Input: _1ms *
* Output: - *
* *
* Description: *
* *
* Time delay with a resolution of 1 ms. *
* *
****************************************************************************/
void delay_1ms (uchar _1ms)
{
RCAP2LH = RCAP2_1ms;
T2LH = RCAP2_1ms;
ET2 = 0; // Disable timer2 interrupt
T2CON = 0x04; // 16-bit auto-reload, clear TF2, start timer
while (_1ms--)
{
while (!TF2);
TF2 = FALSE;
}
TR2 = FALSE;
}
/****************************************************************************
* *
* Function: delay_10ms *
* *
* Input: _10ms *
* Output: - *
* *
* Description: *
* *
* Time delay with a resolution of 10 ms. *
* *
****************************************************************************/
void delay_10ms (uint _10ms)
{
RCAP2LH = RCAP2_10ms;
T2LH = RCAP2_10ms;
ET2 = 0; // Disable timer2 interrupt
T2CON = 0x04; // 16-bit auto-reload, clear TF2, start timer
while (_10ms--)
{
while (!TF2)
{
if (CmdValid || CmdReceived)
{
TR2 = FALSE;
TF2 = FALSE;
return;
}
}
TF2 = FALSE;
}
TR2 = FALSE;
}
#ifdef NOP_DELAY
/****************************************************************************
* *
* Function: delay_50us_NOP *
* *
* Input: - *
* Output: - *
* *
* Description: *
* *
* Zeitverz攇erung von 50 鎠. *
* *
****************************************************************************/
void delay_50us_NOP (void)
{
uchar i;
for(i=0; i<81; i++) _nop_();
}
#endif
/****************************************************************************
* *
* Function: delay_8us_NOP *
* *
* Input: - *
* Output: - *
* *
* Description: *
* *
* *
****************************************************************************/
void delay_8us_NOP (void)
{
uchar i;
for(i=0; i<14; i++) _nop_();
}
#pragma aregs
/****************************************************************************
* *
* Function: xtoa_h *
* *
* Input: _byte *
* Output: ASCII High-Nibble *
* *
* Description: *
* *
* Wandelt das High-Nibble des 乥ergebenen Bytes in ein ASCII-Zeichen um. *
* *
****************************************************************************/
uchar xtoa_h (uchar _byte)
{
uchar nibble = _byte >> 4;
return ((nibble > 9)? nibble + 'A' - 10 : nibble + '0');
}
/****************************************************************************
* *
* Function: xtoa_l *
* *
* Input: _byte *
* Output: ASCII Low-Nibble *
* *
* Description: *
* *
* Wandelt das Low-Nibble des 乥ergebenen Bytes in ein ASCII-Zeichen um. *
* *
****************************************************************************/
uchar xtoa_l (uchar _byte)
{
uchar nibble = _byte & 0x0F;
return ((nibble > 9)? nibble + 'A' - 10 : nibble + '0');
}
/****************************************************************************
* *
* Function: isr_timer0 *
* *
* Input: - *
* Output: - *
* *
* Description: *
* *
* *
****************************************************************************/
void isr_timer0 (void) interrupt 1 using 2
{
if (Timer0Cnt)
{
--Timer0Cnt;
}
else
{
STOP_T0();
#ifdef AUTODELAY
if (DelayRate < MAXDELAYRATE && CmdCnt > 0)
{
DelayRate++;
DelayRateLocked = FALSE;
}
#endif
RecvState = RECV_STX;
if (!SendReady && LLfReady)
{
if (RepCnt < MAXREPCNT)
{
RepCnt++;
CALL_isr_UART();
}
else
{
RepCnt = 0;
Quit = FALSE;
SendReady = TRUE;
}
}
}
}
/***************************************************************************/
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