?? main.h
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/****************************************************************************
* *
* File: MAIN.H *
* *
* Version: *
* *
* Created: 30.08.2001 *
* Last Change: 30.08.2001 *
* *
* Author: Chua Joo Ming *
* *
* Compiler: KEIL C51 V4.10 *
* *
* Description: 89C52RD2-Firmware for MFRC500 Demo Serial Reader *
* *
****************************************************************************/
#define AUTODELAY
#ifdef __SRC
#define EXTERN
#else
#define EXTERN extern
#endif
// Common Defines
#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long
#define FALSE 0
#define TRUE 1
// Ports
#define ON 1
#define OFF 0
// Configuration for the reader timeout counter
// Timer 2 (modify OSC_FREQ if another crystal frequency is used)
#define OSC_FREQ 22118400L
// *note: when using the 8051RD2 (in 6 clk instructiion cycle,
// use a crystal that is half the value state in OSC_FREQ.
// Example: for OSC_FREQ=22118400, use 11059000 crystal.
#define BAUD_CNT 7
#define BAUD_115200 256 - (OSC_FREQ/192L)/115200L // 255
#define BAUD_57600 256 - (OSC_FREQ/192L)/57600L // 254
#define BAUD_38400 256 - (OSC_FREQ/192L)/38400L // 253
#define BAUD_28800 256 - (OSC_FREQ/192L)/28800L // 252
#define BAUD_19200 256 - (OSC_FREQ/192L)/19200L // 250
#define BAUD_14400 256 - (OSC_FREQ/192L)/14400L // 248
#define BAUD_9600 256 - (OSC_FREQ/192L)/9600L // 244
#ifdef __SRC
uchar code BaudRateTable[BAUD_CNT] = {
BAUD_115200,
BAUD_57600,
BAUD_38400,
BAUD_28800,
BAUD_19200,
BAUD_14400,
BAUD_9600
};
#else
extern uchar code BaudRateTable[BAUD_CNT];
#endif
#ifdef __SRC
uint code CmpTable[BAUD_CNT + 1] = {
0x078,
0x095,
0x129,
0x1BD,
0x252,
0x37A,
0x4A3,
0x6F4
};
#else
extern uint code CmpTable[BAUD_CNT + 1];
#endif
// Serial Protocol
#define SOH 0x01 // Start of header
#define STX 0x02 // Start of text
#define ETX 0x03 // End of text
#define ENQ 0x05 // Enquire
#define ACK 0x06 // Acknowledge
#define DLE 0x10 // Data link escape
#define NAK 0x15 // Not acknowledge
#define MAXREPCNT 2
#define CALL_isr_UART() TI = 1
#define SER_BCC 0
#define SER_CRC 1
#define BCC_CHECKBYTECNT 1
// CCITT-CRC16 (x^16 + x^12 + x^5 + 1) => 0x11021
#define CRC_POLYNOM 0x1021
#define CRC_PRESET 0xFFFF
#define CRC_CHECKBYTECNT 2
// Receive States
#define RECV_STX 0
#define RECV_DATA_DLE_ETX 1
#define RECV_ETX 2
#define RECV_DLE 3
#define RECV_DLE_OR_NAK 4
// Values for checking the Data Length of the Commands
#define MINCMDNR 0x40
#define MAXCMDNR 0x57
#define CMDCNT MAXCMDNR - MINCMDNR + 1
#ifdef __SRC
uchar code CmdLenTab[CMDCNT] = {
// CmdNr: 0x40 ...
7, 1, 5, 4, 2, 0, 1, 17, 5, 5, 1, 1, 14, 1, 2, 0,
// CmdNr: 0x50 ... ... 0x57
1, 1, 2, 22, 1, 0, 3, 5};
#else
extern uchar code CmdLenTab[CMDCNT];
#endif
// Serial Buffer
#define HEADER 3
#define MAXDATA 30
#define SERBUFLEN HEADER + MAXDATA + CRC_CHECKBYTECNT + 1
#define SEQNR 0
#define COMMAND 1
#define STATUS 1
#define LENGTH 2
#define MODE 3
#define BCNT 3
#define ADR 3
#define SERNR 3
#define SIZE 3
#define TIME 3
#define TAGTYPE 3
#define INFO 3
#define CTLBYTE 3
#define PORTBYTE 3
#define HLREQMODE 3
#define SECNR 4
#define DATABYTES 4
#define VALUE 4
#define BAUD 4
#define SERNR_in 4
#define HL_SERNR 4
#define KEY_ADDR 4
#define POSITION 4
#define SEL_CNT 4
#define TKEY 5
#define AUTHADD 5
#define DES_KEY 5
#define MKAC 5
#define CARD_ADDR 5
#define NUM 5
#define CIPHER 6
#define AUTHMODE 7
#define ADRCHKWR 8
#define HLAUTHMODE 8
#define DATACHKWR 9
#define HLSECNR 9
#define NKEY6 11
#define NKEY8 13
#define QUIT 30
// Timer 0
#define T_533_ms 14 // (533 ms)
#define START_T0(x) Timer0Cnt = (x); TL0 = 0; TH0 = 0; TR0 = 1
#define STOP_T0() TR0 = 0
#ifndef NO_TIMER2
// Timer 2
#define RCAP2_50us 65536L - OSC_FREQ/240417L
#define RCAP2_1ms 65536L - OSC_FREQ/12021L
#define RCAP2_10ms 65536L - OSC_FREQ/1200L
sfr16 RCAP2LH = 0xCA;
sfr16 T2LH = 0xCC;
#else
#define SCON S0CON
#define SBUF S0BUF
#define ES ES0
#endif
#ifdef NOP_DELAY
#define DELAY_us(x) delay_50us_NOP()
#else
#define DELAY_us(x) for (i = 0; i < (uchar)(((x)*9)/20); i++)
// 20 <= x <= 567
#endif
// Global Variables
EXTERN volatile bit Idle;
EXTERN volatile bit CmdReceived;
EXTERN volatile bit DataDleReceived;
EXTERN volatile bit CmdValid;
EXTERN volatile bit LLfReady;
EXTERN volatile bit SendReady;
EXTERN volatile bit Quit;
EXTERN volatile bit EnableRS422;
EXTERN volatile bit EnableTransferCmd;
EXTERN volatile bit Enable_LEDs;
EXTERN volatile bit AutoBaud;
#ifdef AUTODELAY
EXTERN volatile bit DelayRateLocked;
EXTERN volatile uchar DelayRate;
EXTERN volatile uchar CmdCnt;
#define MAXDELAYRATE 100
#define AUTODELAY_FALLBACK 200
#endif
EXTERN volatile uchar RecvState;
EXTERN volatile uchar SendState;
EXTERN volatile uchar Index;
EXTERN volatile uchar RepCnt;
EXTERN volatile uchar Timer0Cnt;
EXTERN volatile uchar SeqNr;
EXTERN volatile uchar QuitStatus;
EXTERN volatile uchar CheckByteCnt;
EXTERN volatile char BaudRate;
EXTERN volatile uchar Capt_L;
EXTERN volatile uchar Capt_H;
EXTERN volatile uint Capt;
EXTERN volatile uchar idata SerBuffer[SERBUFLEN];
// Global Prototypes
EXTERN void delay_8us_NOP(void);
EXTERN void delay_50us(uchar _50us);
EXTERN void delay_1ms(uchar _1ms);
EXTERN void delay_10ms(uint _10ms);
#ifdef NOP_DELAY
EXTERN void delay_50us_NOP(void);
#endif
EXTERN uchar xtoa_h(uchar _byte);
EXTERN uchar xtoa_l(uchar _byte);
EXTERN void auto_baud(void);
#undef EXTERN
/***************************************************************************/
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