📄 discom.c
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//----------------------------------------------------------------------------
//DISCOM.c
//南钢显示屏通信程序
//-----------------------------------------------------------------------------
// Copyright 2005
//
// AUTH: 黎宁 //
// DATE: 2005-12-21
//
//
// Target: C8051F02x
// Tool chain: KEIL C51 7.08 / KEIL EVAL C51
//
//-----------------------------------------------------------------------------
//串口0,PLC-MODBUS
//串口1,无线单元//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//通信协议:
//
//车号为本车号的情况下回送数据
//------------------------------------------------------------------------------
//读PLC数据:
//40101----工作车种类与车号（0x0011)
//40102----状态(0x1234)
//40103----语音(0x5678)
//40104----备用(0x9ABC)
//发送命令（08字节）：01 03 00 64 00 04 (CRC)
// 01 03 00 64 00 04 05 D6
//回送数据（13字节）：01 03 08 01 01 12 34 56 78 9A BC (CRC)
// 01 03 08 00 00 00 00 00 00 00 00 95 D7
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
//写PLC数据:
//40201----推焦车炉号(0x1234)
//40202----拦焦车炉号(0x5678)
//40203----熄焦车炉号(0x9ABC)
//40204----状态(0xDEF0)
//40205----系统时间(0x1234)/实际地址
//40206----计划时间(0x0123)
//40207----计划炉号/平杆长度(0x4567)
//40208----计划地址(0x89AB)
//发送命令（25字节）：01 10 00 C8 00 08 10 12 34 56 78 9A BC DE F0 12
// 34 01 23 45 67 89 AB 23 45(CRC)
//回送数据（08字节）：01 10 00 C8 00 0A (CRC)
// 01 10 00 C8 00 08 40 31
//------------------------------------------------------------------------------
//数据流程:
//无线到PLC:无线 -> 串口1 rebuf[] -> data_out[]-> 串口0 trbox[] -> PLC
//PLC到无线:PLC -> 串口0 rebox[] -> data_in[] -> 串口1 trbuf[] -> 无线
//-----------------------------------------------------------------------------
// Includes
//-----------------------------------------------------------------------------
#include "c:\Keil\C51\inc\Cygnal\c8051f020.h" // SFR declaraTI0ons
#include "c:\Keil\C51\inc\stdio.h"
#include "c:\Keil\C51\inc\string.h"
#include "c:\Keil\C51\inc\ctype.h"
//-----------------------------------------------------------------------------
// 16-bit SFR DefiniTI0ons for 'F02x
//-----------------------------------------------------------------------------
sfr16 DP = 0x82; // data pointer
sfr16 TMR3RL = 0x92; // TI0mer3 reload value
sfr16 TMR3 = 0x94; // TI0mer3 counter
sfr16 ADC0 = 0xbe; // ADC0 data
sfr16 ADC0GT = 0xc4; // ADC0 greater than window
sfr16 ADC0LT = 0xc6; // ADC0 less than window
sfr16 RCAP2 = 0xca; // TI0mer2 capture/reload
sfr16 T2 = 0xcc; // TI0mer2
sfr16 RCAP4 = 0xe4; // TI0mer4 capture/reload
sfr16 T4 = 0xf4; // TI0mer4
sfr16 DAC0 = 0xd2; // DAC0 data
sfr16 DAC1 = 0xd5; // DAC1 data
//-----------------------------------------------------------------------------
// Global CONSTANTS
//-----------------------------------------------------------------------------
sbit CST = P3^1;
sbit CSL = P3^2;
sbit CSX = P3^3;
sbit RTS = P3^0;
#define UBYTE unsigned char
#define UWORD unsigned int
#define SYSCLK 22118400 // SYSCLK frequency in Hz
#define RX1_NUMBER 21 // 应从无线模块收到的数据的数量
#define TX1_NUMBER 5 // 应发送到无线模块的数据的数量
#define TX0_WRITE_PLC_NUMBER 25 // 写PLC时发送的数据的数量
#define TX0_READ_PLC_NUMBER 8 // 读PLC时发送的数据的数量
//#define RX0_WRITE_PLC_NUMBER 25 // 写PLC时回送的数据的数量
//#define RX0_READ_PLC_NUMBER 8 // 读PLC时回送的数据的数量
//-----------------------------------------------------------------------------
// FuncTI0on PROTOTYPES
//-----------------------------------------------------------------------------
void SYSCLK_Init (void);
void PORT_Init (void);
void Timer0_Init (void);
void Timer1_Init (void);
void SPI_Init();
void UART0_Init (void);
void UART1_Init (void);
void Timer0_ISR (void);
void Timer1_ISR (void);
void UART0_ISR (void);
void UART1_ISR (void);
void PCA0_Init (void);
void GetCRC16(unsigned char *puchMsg, int DataLen);
void SPI_WRITE(char Val);
void SendT( );
void SendL( );
void SendX( );
void PlayVoice( );
void Com( );
//-----------------------------------------------------------------------------
// Global VARIABLES
//-----------------------------------------------------------------------------
bit TX0_Ready; // '1' means okay to TX0
bit RX0_Ready; // '1' means RX0 string received
bit TX1_Ready; // '1' means okay to TX1
bit RX1_Ready; // '1' means RX1 string received
bit wire;
bit ok;
bit READ = 0; // '1' 读PLC; '0' 写PLC
//char *TX1_ptr; // pointer to string to transmit
UBYTE data RX1_index = 0; // receive buffer index
UBYTE data TX1_index = 0; // tx buffer index
UBYTE data RX0_index = 0; // receive buffer index
UBYTE data TX0_index = 0; // tx buffer index
UBYTE data TX0_NUMBER = 0; // tx buffer NUMBER
UBYTE idata RX1_Buf[30]; // receive string storage buffer
UBYTE idata RX1_CHK_ADD=0; // 从无线模块收到的数据和校
UBYTE idata RX1_CHK_XOR=0; // 从无线模块收到的数据异或校
UBYTE idata TX1_CHK_ADD=0; // 发送到无线模块的数据和校
UBYTE idata TX1_CHK_XOR=0; // 发送到无线模块的数据异或校
UWORD Count1ms_PLC; //
UWORD Count1ms_Modem; //
bit PLC_COM_START = 0;
bit PLC_COM_OVER = 0;
bit PLC_COM_OK = 0;
bit PLC_Timer_OK;
bit Modem_Timer_OK;
UBYTE data Address = 10; //车号 0：1; 1：2; 2：3
UBYTE data Car = 2; //车种类2：拦; 3：熄; 4：煤
UBYTE data Run = 0;
UWORD xdata nw;
UWORD xdata TTTT;
UBYTE idata rebox[30]; //PLC接收缓冲区
UBYTE idata trbox[30]; //PLC发送缓冲区
UBYTE idata rebuf[30]; //无线模块接收缓冲区
UBYTE idata trbuf[30]; //无线模块发送缓冲区
UBYTE idata data_in[30]; //从PLC整理而来的数据，转送到无线模块中
UBYTE xdata data_out[30]; //从无线模块整理而来的数据，转送到PLC中
UWORD data Position_XJC;
//对接口模块操作时,拷贝此数据即可
UBYTE i,j,k,l,m,n,o,x,y,re_er,count;
long KKK;
long MMM;
UBYTE DIS_DOT=0; //对比度调整
bit IsPlay = 0; //语音播放中
bit PlayStart = 0; //语音播放开始
UWORD PlayTime = 0; //语音播放时间
/************************************************************************/
// 显示缓冲区
/************************************************************************/
// 推焦车状态
// 7位 右二 6位 右一 5位 左一 4位 左
// 3位 对准 2位 推焦请求 1位 摘门 0位 推焦连锁
/************************************************************************/
// 推焦车状态
// 7位 右二 6位 右一 5位 左一 4位 左
// 3位 对准 2位 允许推焦 1位 锁闭 0位 一级允推
/************************************************************************/
// 推焦车状态
// 7位 右二 6位 右一 5位 左一 4位 左
// 3位 对准 2位 允许推焦 1位 车门 0位 二级允推
/************************************************************************/
char xdata Tcar[9]; // 推焦车 HHMM 123 XXXX(状态）
char xdata Lcar[9]; // 拦焦车 -701 123 XXXX（状态）
char xdata Xcar[9]; // 熄焦车 HHMM 123 XXXX（状态）
char Order_State = 0;
char Voice = 0;
char DotN =0; //小数点情况
/************************************************************************/
// 段码定义
#define Dot 0x40 //加小数点，或0x40 (|0x40)
const char code dis[10] = {0xaf,0x03,0x9d,0x97,0x33,0xb6 ,0xbe,0x83,0xbf,0xb7};
/************************************************************************/
UBYTE code Cmd_READ[]={
// station No.=1 function=3 starting address=40100, quantity =4
// 01 03 00 64 00 04
0x01,0x03,0x00,0x64,0x00,0x04,0x05,0xD6
};
UBYTE Cmd_WRITE[]={
// station No.=1 function=16 starting address=40200, quantity =8, 16BYTE
// 01 10 00 C8 00 08 10 12 34 56 78 9A BC DE F0 12 34 01 23 45 67 89 AB 23 45
0x01,0x10,0x00,0xC8,0x00,0x08,0x10,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00
};
/************************************************************************/
/* CRC16 Table High byte */
static unsigned char code CRC16Hi[] = {
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40
} ;
/* CRC16 Table Low byte */
static char code CRC16Lo[] = {
0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2,
0xC6, 0x06, 0x07, 0xC7, 0x05, 0xC5, 0xC4, 0x04,
0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E,
0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09, 0x08, 0xC8,
0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A,
0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC,
0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6,
0xD2, 0x12, 0x13, 0xD3, 0x11, 0xD1, 0xD0, 0x10,
0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32,
0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4,
0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE,
0xFA, 0x3A, 0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38,
0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA,
0xEE, 0x2E, 0x2F, 0xEF, 0x2D, 0xED, 0xEC, 0x2C,
0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0,
0xA0, 0x60, 0x61, 0xA1, 0x63, 0xA3, 0xA2, 0x62,
0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4,
0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F, 0x6E, 0xAE,
0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68,
0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA,
0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C,
0xB4, 0x74, 0x75, 0xB5, 0x77, 0xB7, 0xB6, 0x76,
0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0,
0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92,
0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54,
0x9C, 0x5C, 0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E,
0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98,
0x88, 0x48, 0x49, 0x89, 0x4B, 0x8B, 0x8A, 0x4A,
0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86,
0x82, 0x42, 0x43, 0x83, 0x41, 0x81, 0x80, 0x40
} ;
UBYTE CRCHi ; /* high byte of CRC initialized */
UBYTE CRCLo ; /* low byte of CRC initialized */
//-----------------------------------------------------------------------------
// MAIN RouTI0ne
//-----------------------------------------------------------------------------
void main ()
{
WDTCN = 0xde; // disable watchdog TI0mer
WDTCN = 0xad;
for (nw=0;nw<6000;nw++) // 等待电源稳定
{
}
for (nw=0;nw<6000;nw++) // 等待电源稳定
{
}
for (i=0;i<16;i++ )
{
trbuf[i]=0;
data_in[i]=0; //从data_in[]中取数据
}
SYSCLK_Init (); // iniTI0alize oscillator
PORT_Init (); // iniTI0alize crossbar and GPIO
SPI_Init();
UART0_Init (); // iniTI0alize UART0
UART1_Init (); // initialize UART0
PCA0_Init ();
EA = 1; // enable global interrupts
/*========================================================================*/
/* 清输入缓冲区trbox[i]，清输出缓冲区rebox[i] */
/*------------------------------------------------------------------------*/
for (i=0;i<30;i++)
{
rebox[i]=0;
trbox[i]=0;
data_out[i]=0;
}
RX1_index = 0;
Timer0_Init ();
Timer1_Init ();
ES0 = 1; // enable UART0 interrupts
Run =0;
PLC_COM_OK = 1; // 启动和PLC通信
WDTCN = 0x07; // WATCHDOG=47ms
for (;;)
{
WDTCN = 0xa5; //
/*========================================================================*/
//和PLC通信
/*========================================================================*/
Com();
if (PlayStart ) // 语
{
if (Voice !=1)
{
PlayStart = 0 ;
IsPlay = 1;
}
PlayVoice();
}
}
}
//-----------------------------------------------------------------------------
// SYSCLK_Init
//-----------------------------------------------------------------------------
//
// This rouTI0ne iniTI0alizes the system clock to use an 22.1184MHz crystal
// as its clock source.
//
void SYSCLK_Init (void)
{
int i; // delay counter
OSCXCN = 0x67; // start external oscillator with
// 22.1184MHz crystal
for (i=0; i < 256; i++) ; // wait for oscillator to start
while (!(OSCXCN & 0x80)) ; // Wait for crystal osc. to settle
OSCICN = 0x88; // select external oscillator as SYSCLK
// source and enable missing clock
// detector
}
//-----------------------------------------------------------------------------
// PORT_Init
//-----------------------------------------------------------------------------
//
// Configure the Crossbar and GPIO ports
//
void PORT_Init (void)
{
XBR0 |= 0x17; // Enable CEX0 on P0.0
XBR1 |= 0x00;
XBR2 |= 0x44; // Enable crossbar and weak pull-ups
P0MDOUT |= 0x1D; // enable P0.0 as a push-pull output
P1MDOUT = 0xFD; // Output configuration for P1
P2MDOUT = 0x00; // Output configuration for P2
P3MDOUT = 0x00; // Output configuration for P3
P74OUT = 0x00; // Output configuration for P4-7
P1MDIN = 0xFF; // Input configuration for P1
P5 = 0xFF;
}
void SPI_Init()
{
SPI0CFG = 0x07; // data sampled on 1st SCK rising edge
// 8-bit data words
SPI0CN = 0x03; // Master mode; SPI enabled; flags
// cleared
SPI0CKR = SYSCLK/2/2000000;
}
/*
void EMIF_Init (void)
{
EMI0CF = 0x2b; // upper ports; muxed mode;
// split mode w/o bank select
EMI0TC = 0x0f; // fastest timing (4-cycle MOVX)
P74OUT |= 0xff; // all EMIF pins configured as
// push-pull
}
*/
void Timer0_Init (void)
{
CKCON|=0x8;
TMOD|=0x1; //16Bit
//Count10ms=10;
//Count1s=0;
TR0 = 0; // STOP Timer0
TH0 = (-SYSCLK/1000) >> 8; // set Timer0 to overflow in 1ms
TL0 = -SYSCLK/1000;
TR0 = 1; // START Timer0
IE|= 0x2;
}
void Timer1_Init (void)
{
CKCON|=0x10;
TMOD|=0x10; //16Bit
//Count10ms=10;
//Count1s=0;
TR1 = 0; // STOP Timer1
TH1 = (-SYSCLK/1000) >> 8; // set Timer1 to overflow in 1ms
TL1 = -SYSCLK/1000;
TR1 = 1; // START Timer0
IE|= 0x8;
}
//-----------------------------------------------------------------------------
// PCA0_Init
//-----------------------------------------------------------------------------
//
// Configure PCA0: PCA uses SYSCLK as time base; overflow interrupt
// disabled.
// Module 0 configured in Frequency Output mode to generate a frequency equal
// to the constant FREQ.
//
void PCA0_Init (void)
{
// configure PCA time base to use SYSCLK; overflow interrupt disabled
PCA0CN = 0x00; // Stop counter; clear all flags
PCA0MD = 0x08; // Time base uses SYSCLK
// Configure Module 0 to Frequency Output mode to toggle at 2*FREQ
PCA0CPM0 = 0x46; // Frequency Output mode
PCA0CPH0 = SYSCLK/1843200/2; // Set frequency
PCA0CPM1 = 0x46; // Frequency Output mode
PCA0CPH1 = SYSCLK/76800/2; // Set frequency
// Start PCA counter
CR = 1;
}
//-----------------------------------------------------------------------------
// UART0_Init
//-----------------------------------------------------------------------------
//
// Configure the UART0 using T2, for <baudrate:115200> and 8-e-1.
//
/*---------------------------------------------------------------------------*/
/*串口设置成模式3 即：1 个启始位、8个数据位、1个停止位； */
/* 0xd0=11010000B; SM0SM1=11; SM2=0; REN=1;TB8=0; RB8=0; TI=0; RI=0 */
/*---------------------------------------------------------------------------*/
void UART0_Init (void)
{
RCAP2= -(SYSCLK/19200/32); // 波特率=19200
T2=RCAP2;
PCON=0;
T2CON=0x34; //RCLK=1; TCLK=1; TR2=1; C/T2=0
SCON0=0x050;
}
//-----------------------------------------------------------------------------
// UART1_Init
//-----------------------------------------------------------------------------
//
// Configure UART1 using Timer4, for <baudrate> and 8-N-1.
//
void UART1_Init (void)
{
SCON1 = 0x50; // SCON1: mode 1, 8-bit UART
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