📄 uart_s.c
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//uart.c
#include "pic16f62xa.h"
#include "pic.h"
#include "typedefine_s.h"
#include "extern_s.h"
#define TRUE 1
#define FLASE 0
#define BRCLK 8000000
#define FRAMEOVERCOU 1000.0*40/BAUD
//-------------------------------------------------
//#define 40001 analogCurrentValue //模拟量当前值
//#define 40002 pointPosi //小数点位置
//#define 40003 signalInUpLimit //模拟量输入上限
//#define 40004 signalInDownLimit //模拟量输入下限
////#define 40005
////#define 40006
//-------------------------------------------------
typedef unsigned char uint8;
typedef unsigned int uint16;
typedef unsigned long uint32;
/*
//CRC 高位字节值表
const uchar auchCRCHi[] = {
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
} ;
// CRC低位字节值表
const uchar auchCRCLo[] = {
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
} ;
*/
bank1 uchar sendBuf[16];
bank1 uchar receBuf[16];
bank1 volatile uint RCBuf;
bank1 volatile uchar sendPosi,sendCount;
bank1 volatile uchar receCount;//,GetCntTemp;
bank1 volatile uchar GetCntTemp;
volatile uchar GetKeyValue;
uchar FrameOverCou;
uint crc_result;
uchar RecFrameCheck(uchar *p_CheckData,uchar GetCntTempBuf);
MyWord CRC16(MyByte *data,int iLength);
//uint16 CRC16(uint8 *puchMsg, uint16 usDataLen);
uchar LocalAddr = 1; //本站地址.
void ClearBus(char *p_cleararray,char ClearLength)
{
do
{
*p_cleararray++ = 0;
}
while( --ClearLength > 0);
}
//串口初始化
void Uart_init(void)
{
uint BAUD;
TRISB |= 0b00000110;
RBPU = 0; //使能RB弱上拉
switch (1) //(SerialSet.bits.band)
{
case 0: BAUD = 4800; break; //波特率初始化
case 1: BAUD = 9600; break; //
case 2: BAUD = 19200; break; //
case 3: BAUD = 38400; break; //
case 4: BAUD = 57600; break; //
default: BAUD = 38400; break; //
}
SPBRG = BRCLK/BAUD/16-1;
FrameOverCou = (uchar)(FRAMEOVERCOU);
FrameOverCou += 1;
TXSTA = 0b10000100;
RCSTA = 0b00100000;
RX9 = 1;
TX9 = 1;
// RCSTA = 0b10100000;
SPEN = 1;
CREN = 1;
RCIE = 1;
// TXEN = 1;
// TXIE = 1; //从站程序.
receCount = 0;
}
void beginSend(void)
{
//sendEnable(); //设为发送.
sendPosi = 0;
if(sendCount > 1)
sendCount--;
// TX9D = ParityBit(sendBuf[0]);
TXREG = sendBuf[0];
TXIE = 1; //使能发送中断.
TXEN = 1; //使能发送
// TXIE = 1;
// CREN = 1;
// RCIE = 1;
// CREN = 0;
// RCIE = 0;
}
void En_Receive(void)
{
// RERECEVIE; //设为接受.
// receCount = 0;
// TXEN = 0;
// TXIE = 0;
// CREN = 1;
// RCIE = 1;
}
//单键值处理
void SinglePressKeyDip(void)
{
sendBuf[0] = 0xff;
sendBuf[1] = 0xaa;
sendBuf[2] = 0x55; //0x55 校验确认回复.
crc_result = CRC16(sendBuf,3);
sendBuf[3] = (uchar)(crc_result&0x00ff); // Lo byte.
sendBuf[4] = (uchar)((crc_result&0xff00)>>8); // Hi byte.
//--------
sendCount = 5;
//----------
beginSend();
}
// 从站接受信息帧处理
void ReceiveFrameDisFun(void)
{
// uint crcData;
// static uchar eepaddr;
// if(receCount != 0)
// {
// WriteEEPROM(&receBuf[0],5,eepaddr);
// eepaddr++;
//
// if(eepaddr==100)
// eepaddr = 0;
// }
if(receCount>4)
{ //校验
// WriteEEPROM(&receBuf[0],5,eepaddr);
// eepaddr +=5;
// if(eepaddr>=200)
// eepaddr = 0;
// if((RecFrameCheck(receBuf,receCount)==1) )//&& (checkoutError==0))
switch(receBuf[1]) //byte 2: Command byte.
{
case 0:
break;
case 1:
break;
case 3: //请求变量
// if(receCount >= 5)
// {
// if(receBuf[0]==LocalAddr && checkoutError==0)
// {
// if( RecFrameCheck(receBuf,5) )
// { //校验正确
// // readRegisters();
// }
// }
// }
break;
case 5:
break;
case 0xaa:
if(receCount >= 5)
{
#ifdef TEST1
// RA1 =!RA1;
#endif
// -----------eeprom test-------
// WriteEEPROM(&receBuf[0],5,eepaddr);
// eepaddr +=5;
// if(eepaddr>=200)
// eepaddr = 0;
// ------------------
if(receBuf[0]==LocalAddr && checkoutError==0)
{
if( RecFrameCheck(receBuf,5) ) // ;//receCount) )
{//校验正确
// -----------eeprom test-------
// WriteEEPROM(&receBuf[0],5,eepaddr);
// eepaddr +=5;
// if(eepaddr>=200)
// eepaddr = 0;
// ------------------
#ifdef TEST1
RA1 =!RA1;
#endif
#ifdef TEST_RB4_B
RB4 = !RB4;
#endif
#ifdef TEST_RB3
RB3 = !RB3;
#endif
GetKeyValue = receBuf[2];
LedSSLink = GetKeyValue; // &&&&&&&&&&
// LedStruct.linkLedNewDataTag = 1;
// LedStruct.linkLedData = GetKeyValue;
SinglePressKeyDip();
}
} //if(receBuf[0]==LocalAddr && checkoutError==0)
receCount = 0;
checkoutError = 0;
}
break;
default:
break; // 错误功能码处理.
} //switch(receBuf[1])
} // if(receCount>4)
NOP();
}
uchar RecFrameCheck(uchar *p_CheckData,uchar GetCntTempBuf)
{
uint CRCWord;
CRCWord = *(p_CheckData+(GetCntTempBuf-1))+
(*(p_CheckData+(GetCntTempBuf-2))<<8);
if(CRCWord == CRC16(p_CheckData,GetCntTempBuf-2))
{
return TRUE;
}
else
{
return FLASE;
}
}
MyWord CRC16(MyByte *data,int iLength)
{
MyByte CRC16Lo,CRC16Hi;
MyByte CL,CH;
MyByte SaveHi,SaveLo;
int i,Flag;
CRC16Lo = 0xff;
CRC16Hi = 0xff;
CL = 0x01;
CH = 0xa0;
for(i=0; i<iLength; i++)
{
CRC16Lo = CRC16Lo ^ data[i];
for( Flag=0; Flag<=7; Flag++)
{
SaveHi = CRC16Hi;
SaveLo = CRC16Lo;
CRC16Hi = CRC16Hi>>1;
CRC16Lo = CRC16Lo>>1;
if((SaveHi&0x01) == 0x01)
CRC16Lo = CRC16Lo|0x80;
if((SaveLo&0x01) == 0x01)
{
CRC16Hi = CRC16Hi ^ CH; //
CRC16Lo = CRC16Lo ^ CL; //
}
}
}
return(CRC16Hi<<8 | CRC16Lo);
}
//uint16 CRC16(uint8 *puchMsg, uint16 usDataLen)
//{
// uint8 uchCRCHi = 0xFF ; // 高CRC字节初始化
// uint8 uchCRCLo = 0xFF ; // 低CRC 字节初始化
// uint32 uIndex ;
// while (usDataLen--)
// {
// uIndex = uchCRCHi ^ *puchMsg++ ; /* 计算CRC */
// uchCRCHi = uchCRCLo ^ auchCRCHi[uIndex] ;
// uchCRCLo = auchCRCLo[uIndex] ;
// }
// return (uchCRCHi << 8 | uchCRCLo) ;
//}//uint16 crc16(uint8 *puchMsg, uint16 usDataLen)
//
/*
//读寄存器
void readRegisters(void)
{
uint8 addr;
uint8 tempAddr;
uint16 result;
uint16 crcData;
uint8 readCount;
uint8 byteCount;
uint8 finsh; //1完成 0出错
uint16 i;
uint16 tempData = 0;
//addr = (receBuf[2]<<8) + receBuf[3];
//tempAddr = addr & 0xfff;
addr = receBuf[3];
tempAddr = addr;
//readCount = (receBuf[4]<<8) + receBuf[5]; //要读的个数
readCount = receBuf[5];
byteCount = readCount * 2;
for(i=0;i<byteCount;i+=2,tempAddr++)
{
getRegisterVal(tempAddr,&tempData);
sendBuf[i+3] = tempData >> 8;
sendBuf[i+4] = tempData & 0xff;
}
sendBuf[0] = localAddr;
sendBuf[1] = 3;
sendBuf[2] = byteCount;
byteCount += 3;
crcData = crc16(sendBuf,byteCount);
sendBuf[byteCount] = crcData >> 8;
byteCount++;
sendBuf[byteCount] = crcData & 0xff;
sendCount = byteCount + 1;
beginSend();
}//void readRegisters(void)
//取寄存器值 返回0表示成功
uint16 getRegisterVal(uint16 addr,uint16 *tempData)
{
uint16 result = 0;
uint16 tempAddr;
tempAddr = addr & 0xfff;
switch(tempAddr & 0xff)
{
case 0:
break;
case 1:
break;
case 2:
break;
case 3:
break;
case 4:
break;
case 5:
break;
case 6:
break;
case 7:
break;
case 8:
break;
case 9:
break;
case 10:
break;
case 11:
break;
case 12:
break;
case 13:
break;
case 14:
break;
case 15:
break;
case 16:
*tempData = testRegister;
break;
default:
break;
}
return result;
}//uint16 getRegisterVal(uint16 addr,uint16 &data)
*/
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