📄 system.c
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/*
+---------------------------------------------------+
| Project: SYSTEM with STC89C5X |
| File: SYSTEM.C |
| Data: 2008-12-04 |
| Version: V 1.0 |
| Initial Editor: Li Jifeng |
+---------------------------------------------------+
| following environments are supported |
| Processor: STC89C5X |
| Compiler: WAVE V |
| hardware: JF-2008 |
+---------------------------------------------------+
| Copyright (C) JF Ltd, 2008 |
| All Rights reserved |
+---------------------------------------------------+
| 功能简介: the system function |
+---------------------------------------------------+
*/
#include "system.h"
extern UINT8 idata card1[12];
extern bit nopen_flag;
bit LED_flag;
bit D0_flag; //不连续
bit D7_flag; //满 覆盖
bit purview_flag; //权限确认标志
bit uart_rcv_finish;
bit uart_start_flag;
//bit timer0_out;
bit relay_flag,timer_flag;
//static UINT8 data timer0_n=10;
UINT16 timer2_tick;
bit timer2_out;
UINT8 xdata addr;
//权限确认
static UINT16 data purview_timer;
UINT16 data LOADP,LOADPP;
UINT16 data SAVEP;
static UINT8 xdata relay_timer,relay_timer1;
static UINT16 xdata open_timer;
static UINT8 xdata open_timer1;
static UINT8 xdata infrared_alarm_timer,infrared_alarm_timer1;
static UINT8 xdata exotic_alarm_timer,exotic_alarm_timer1;
static UINT8 xdata infrared_comm_timer,infrared_comm_timer1;
static UINT8 xdata col_flag1,col_flag2,col_flag3;
static UINT8 data LED_timer;
static UINT8 data LED_n;
UINT8 data card[14];
static UINT8 data uart_rcv_flag = 0;
UINT8 data rec_buf[8] = {"1001804"}; //接收数据区
static UINT8 data CID2; //命令码
static UINT8 data LTH[4]; //数据长度
static UINT8 data LCHKSUM; //长度校验
static UINT8 data com_n;
static UINT8 data uart_rcv_len;
static UINT8 idata DataBuf[78]; //信息区
static UINT8 data sum_buf[4];
//static UINT8 idata DataBuf[74] = "~100180000000FDB6\r"; //发送数据区
xdata user user_tmp;
static UINT16 Txsum;
UINT16 Rxsum = 0xcd;
UINT16 Rxsum1;
static UINT16 Rxsum2;
static UINT8 data user_n;
xdata user user_buf[60];
xdata festa holiday_buf[14];
static UINT8 data holiday_n;
UINT8 data I2C_rcv[16]; //信息区
code UINT8 VER[37]= "45533830364120202C2020564552312E3020" ;
code UINT8 OK[3]= "OK";
code UINT8 ERR[4]= "ERR";
/***********************************************************************************
函数名称：asc_hex()
功能描述：ASCII码转十六进制子程序
函数参数：asc
***********************************************************************************/
UINT8 asc_hex(UINT8 uData)
{
if ((uData > 0x2F) && (uData < 0x3A))
{
return(uData - 0x30);
}
else if ((uData > 0x40) && (uData < 0x47))
{
return(uData - 0x37);
}
else return(0);
}
/***********************************************************************************
函数名称：hex_asc()
功能描述：十六进制转ASCII码子程序
函数参数：hex
***********************************************************************************/
UINT8 hex_asc(UINT8 uData)
{
if (uData < 10)
{
return(0x30 + uData);
}
else if(uData < 16)
{
return(0x37 + uData);
}
else return(0);
}
/***********************************************************************************
函数名称：timer0_isr()
功能描述：定时器0中断服务程序
参 数：无
***********************************************************************************/
static void timer0_isr (void) interrupt TF0_VECTOR using 2
{
TL0 = TL0_VALUE; //如果是工作方式2,8位自动重装
TH0 = TH0_VALUE; //TL0和TH0就不用重新赋值
/*if(--timer0_n == 0)
{
timer0_n = 10;
timer0_out = 1;
}*/
if(purview_flag)
{
if(--purview_timer == 0)
purview_flag = 0;
}
if(relay_flag)
{
if(--relay_timer == 0)
{
relay_flag = 0;
relay = 1;
LED = 1;
timer_flag = 0;
}
}
if(LED_flag)
{
if(--LED_timer == 0)
{
LED_timer = 4;
LED = ~LED;
if(--LED_n == 0)
{
LED_flag = 0;
LED_n = 5;
LED = 1;
timer_flag = 0;
}
}
}
if(nopen_flag)
{
if (--timer2_tick == 0) //timer2_N=9,1秒
{
timer2_tick = 20;
timer2_out = 1;
nopen_flag = 0;
}
}
}
/***********************************************************************************
函数名称：timer2_isr()
功能描述：定时器2中断服务程序
参 数：无
***********************************************************************************/
//static UINT8 timer2_tick,timer2_N;
static void timer2_isr (void) interrupt TF2_VECTOR using 2
{
//TR2 = 0;
TF2 = 0; //必须由软件清零
//EXF2 = 0; //定时器2外部中断标志,必须由软件清零
//TH2 = TH2_VALUE; //如果是工作方式0,16位自动重装
//TL2 = TL2_VALUE; //TL2和TH2就不用重新赋值
//TR2 = 1;
if (--open_timer == 0) //timer2_N=9,1秒
{
TR2 = 0;
open_timer = open_timer1*2;
timer2_out = 1;
}
}
/***********************************************************************************
函数名称:uart_send_byte()
功能:串口发送函数
函数参数:udata:发送的数据
***********************************************************************************/
void uart_send_byte(UINT8 udata)
{
TI = 0;
SBUF = udata;
while (TI == 0);
TI = 0;
}
/***********************************************************************************
函数名称:uart_send1()
功能:串口发送函数
函数参数:*DataBuf:发送的数据
n:数据个数
***********************************************************************************/
void uart_send1(UINT8 *DataBuf,UINT16 n)
{
while (n--)
{
uart_send_byte(*DataBuf);
DataBuf++;
}
}
/***********************************************************************************
函数名称：uart_isr()
功能描述：串口中断服务子程序
函数参数：无
10018048200EF0E00000
***********************************************************************************/
static void uart_isr(void) interrupt SIO_VECTOR using 3
{
UINT8 tmp;
if (RI)
{
RI = 0;
tmp = SBUF;
if (tmp == '~') //帧头
{
uart_start_flag = 1;
uart_rcv_flag = 0;
com_n = 0;
}
else if (uart_start_flag)
{
switch (uart_rcv_flag)
{
case 0:if (tmp == rec_buf[com_n])
{
com_n++;
}
else
{
uart_start_flag = 0;
}
if (com_n == 7)
{
uart_rcv_flag = 1;
}
break;
case 1:CID2 = tmp;
if ((CID2 == '8') || (CID2 == 'A'))
{
uart_rcv_flag = 2;
com_n = 0;
LCHKSUM = 0;
Rxsum2 = Rxsum1 + tmp;
}
else if(purview_flag)
{
if(CID2 == '9')
{
uart_rcv_flag = 2;
com_n = 0;
LCHKSUM = 0;
Rxsum2 = Rxsum1 + tmp;
}
else
{
uart_start_flag = 0;
}
}
else
{
uart_start_flag = 0;
}
break;
case 2:if(com_n < 3)
{
LTH[com_n] = asc_hex(tmp);
LCHKSUM += LTH[com_n];
Rxsum2 += tmp;
com_n++;
}
else
{
LTH[com_n] = asc_hex(tmp);
LCHKSUM += LTH[com_n];
Rxsum2 += tmp;
if((LCHKSUM & 0x0f) == 0)
{
uart_rcv_flag = 3;
uart_rcv_len = (LTH[2]<<4) + LTH[3];
com_n = 0;
}
else uart_start_flag = 0;
}
break;
case 3:if (com_n < uart_rcv_len - 1) //DATA
{
DataBuf[com_n] = asc_hex(tmp);
Rxsum2 += tmp;
com_n++;
}
else
{
uart_rcv_flag = 4;
DataBuf[com_n] = asc_hex(tmp);
com_n = 0;
Rxsum2 += tmp;
Rxsum2 = 0x10000 - Rxsum2;
sum_buf[0] = hex_asc((Rxsum2 >> 12) & 0x000f);
sum_buf[1] = hex_asc((Rxsum2 >> 8) & 0x000f);
sum_buf[2] = hex_asc((Rxsum2 >> 4) & 0x000f);
sum_buf[3] = hex_asc(Rxsum2 & 0x000f);
}
break;
case 4:if(com_n < 4)
{
if (tmp == sum_buf[com_n]) //FCS
{
com_n++;
}
else
{
uart_start_flag = 0;
}
}
else
{
if(tmp == 0x0D)
{
uart_rcv_finish = 1;
ES = 0;
uart_start_flag = 0;
//control();
}
uart_start_flag = 0;
}
break;
default:uart_start_flag = 0;
break;
}
}
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