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proto.c
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proto.c
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#include "proto.h"
//-----------------------------------------------------------------------------------
ISR(TIMER1_OVF_vect) //îáðàáîò÷èê ïðåðûâàíèÿ òàéìåðà3
{
cnt_15++;
cnt_35++;
if(cnt_15>=3)//ïåðèîä 1.5 ïåðåäà÷è áàéòà
{
TIMEOUT_15=0x1;
cnt_15=0x0;
}
if(cnt_35>=7) //ïåðèîä 3.5 ïåðåäà÷è áàéòà
{
Timer1_Stop();//îñòàíîâèì òàéìåð
PORTB++;
TIMEOUT_35=0x1;//ôëàã òàéìàóòà
cnt_35=0x0;
if(buf_count<MIN_LENGTH_REC_BUF)
{
MD_STATE=MD_RESTART; //ðåñòàðò è æäåì íîâîé ïîñûëêè
//âîçìîæíà îáðàáîòêà îøèáêè
}
else
{
MD_STATE=MD_ADDR_CHECK;//êàäð ïðèíÿò, ïðîâåðÿåì àäðåñ
}
}
TIFR&=~(1<<TOV1);
TCNT1H=0xFE;
TCNT1L=0x5E;
}
//------------------------------------------------------------------------------
ISR(USART_RXC_vect)
{
Timer1_Reset();
if(TIMEOUT_15 || buf_count>MAX_LENGTH_REC_BUF)
{
buf_count=0x0;//îáíóëÿåì áóôåð ñ÷åò÷èêà ïðèåìà
}
RecieveBuf[buf_count]=UDR;//ñîõðàíÿåì ïðèíÿòûé ñèìâîë â áóôåð
buf_count++;
cnt_15=0x0;
cnt_35=0x0;
TIMEOUT_15=0x0;//îáíóëÿåì òàéìàóòû
TIMEOUT_35=0x0;
MD_STATE=MD_WAIT; // æäåì íîâîé ïîñûëêè
}
//------------------------------------------------------------------------------
ISR(USART_TXC_vect)//àâòîìàò ïåðåäà÷è ïàêåòà
{
if(transf_count<buf_len)
{
UDR=TransferBuf[transf_count];
transf_count++;
}
else
{
transf_count=0x0; //îáíóëÿåì ñ÷åò÷èê
MD_STATE=MD_RESTART;
}
//MD_STATE=MD_WAIT; // æäåì íîâîé ïîñûëêè
}
//------------------------------------------------------------------------------
unsigned char aucCRCHi[256] PROGMEM = {
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
};
unsigned char aucCRCLo[256] PROGMEM = {
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
};
//--------------------------------------------------------------------
//unsigned char string[]={DEV_NAME};
void Protocol_Init(void)
{
UCSRA&=~(1<<RXC);//ôëàã ïðèåìà áàéòà ïî UART
UCSRA&=~(1<<TXC);//ôëàã ïåðåäà÷è áàéòà ïî UART
MD_STATE=MD_RESTART;//ñ÷åò÷èê ñîñòîÿíèé
buf_count=0x0;//ñ÷åò÷èê áóôåðà ïðèåìà
transf_count=0x0;//ñ÷åò÷èê ïåðåäàâàåìûõ áàéòîâ
buf_len=0x0;//äëèíà ïåðåäàâàåìîãî áóôåðà
cnt_15=0x0; //ñ÷åò÷èê 1.5 ïåðèîäà
cnt_35=0x0; //ñ÷åò÷èê 3.5 ïåðèîäà
//------------------------ôëàãè îøèáîê--------------------------------
CRC_ERR=0x0; //îøèáêà crc
COMMAND_ERR=0x0;//íåïîääåðæèâàåìàÿ êîìàíäà
TIMEOUT_15=0x0; //òàéìàóò 1.5
TIMEOUT_35=0x0; //òàéìàóò 3.5
}
//-----------------------------------------------------------------------------
void Send_Info(void)//èíôîðìàöèÿ îá óñòðîéñòâå
{
unsigned int CRC=0x0;
TransferBuf[0]=ADRESS_DEV;
TransferBuf[1]=0x11;//ïîëó÷èòü èíôîðìàöèþ
TransferBuf[2]=0x4; //ñ÷åò÷èê áàéò
TransferBuf[3]=HI(DEV_ID);//id
TransferBuf[4]=LO(DEV_ID);//id
TransferBuf[5]=HI(DEV_SN);//SN
TransferBuf[6]=LO(DEV_SN);//SN
CRC=CRC16(&TransferBuf,7);
TransferBuf[7]=HI(CRC);
TransferBuf[8]=LO(CRC);
buf_len=0x9;
}
//-----------------------------------------------------------------------------
void SetSingleRegister(void)//óñòàíîâèòü çíà÷åíèå îäíîãî ðåãèñòðà
{
unsigned char i=0;
unsigned int CRC=0x0;
unsigned int addr;//àäðåñ ðåãèñòðà
unsigned int num;//çíà÷åíèå ðåãèñòðà
//-----------óñòàíîâêà íóæíîãî ðåãèñòðà------------
addr=(((unsigned int)RecieveBuf[2])|((unsigned int)RecieveBuf[3]<<8));
num=(((unsigned int)RecieveBuf[4]<<8)|((unsigned int)RecieveBuf[5]));
if(addr>=REG_ADDR_MIN && addr<=REG_ADDR_MAX)
{
controller_reg[addr]=num;
for (i=0;i<(buf_count-CRC_LEN);i++)
{
TransferBuf[i]=RecieveBuf[i];
}
buf_len=buf_count;
CRC=CRC16(&TransferBuf,buf_len-CRC_LEN);
TransferBuf[buf_len-2]=HI(CRC);
TransferBuf[buf_len-1]=LO(CRC);
}
else
{
//îáðàáîòêà îøèáêè
MD_STATE=MD_ERR_HANDLING;
}
//-------------------------------------------------
}
//-----------------------------------------------------------------------------
void SetMultipleRegisters(unsigned char *regs)//óñòàíîâèòü çíà÷åíèå íåñêîëüêèõ ðåãèñòðîâ
{
}
//-----------------------------------------------------------------------------
void ReadHoldingReg(void)//÷òåíèå ðåãèñòðîâ õðàíåíèÿ
{
#define HEAD_LEN 3
//
//[addr|func|n_regs|....|crc|crc]-êàäð îòâåòà
//[ head |............]
unsigned char i=0,count=0;
unsigned int CRC=0x0;
unsigned int addr;//àäðåñ íà÷àëüíîãî ðåãèñòðà
unsigned int len;//êîëè÷åñòâî ñ÷èòûâàåìûõ ðåãèñòðîâ
TransferBuf[0]=ADRESS_DEV;
TransferBuf[1]=READ_HOLDING_REG;//ïðî÷èòàòü ðåãèñòðû õðàíåíèÿ
//-----------÷òåíèå íà÷àëüíîãî àäðåñà è êîëè÷åñòâà ðåãèñòðîâ------------
addr=(((unsigned int)RecieveBuf[2]<<8)|(unsigned int)RecieveBuf[3]);
len= (((unsigned int)RecieveBuf[4]<<8)|(unsigned int)RecieveBuf[5]);
if(addr>=REG_ADDR_MIN && addr<=REG_ADDR_MAX && (len+addr)<=REG_ADDR_MAX)
{
for(i=addr;i<(addr+len);i++)
{
TransferBuf[count+HEAD_LEN]=HI(controller_reg[i]);
TransferBuf[count+HEAD_LEN+1]=LO(controller_reg[i]);
count+=2;
}
TransferBuf[2]=count; //ñ÷åò÷èê áàéò
buf_len=HEAD_LEN+count+CRC_LEN; //äëèíà ïåðåäàâàåìîãî áóôåðà
CRC=CRC16(&TransferBuf,buf_len-CRC_LEN);
TransferBuf[buf_len-2]=HI(CRC);
TransferBuf[buf_len-1]=LO(CRC);
}
else
{
//îáðàáîòêà îøèáêè
MD_STATE=MD_ERR_HANDLING;
}
//-------------------------------------------------
}
//-----------------------------------------------------------------------------
/*void ReadInputReg(unsigned char reg)//÷òåíèå âõîäíûõ ðåãèñòðîâ
{
}*/
//-----------------------------------------------------------------------------
void ModBusBufHandling(void) //ïðîöåññ îáðàáîòêè ïðèíÿòîãî çàïðîñà
{
switch(RecieveBuf[1]){
//-------------ïîëó÷èòü èíôîðìàöèþ îá óñòðîéñòâå----------------------------
case GET_DEV_INFO:
{
Send_Info();
}
break;
//--------------óñòàíîâèòü çíà÷åíèå îäíîãî ðåãèñòðà-------------------------
case SET_SINGLE_REG:
{
SetSingleRegister();
}
break;
//--------------óñòàíîâèòü çíà÷åíèå íåñêîëüêèõ ðåãèñòðîâ--------------------
case SET_MULTIPLE_REG:
{
}
break;
//---------------÷òåíèå ðåãèñòðîâ õðàíåíèÿ----------------------------------
case READ_HOLDING_REG:
{
//stub();
ReadHoldingReg();
}
break;
//---------------÷òåíèå âõîäíûõ ðåãèñòðîâ-----------------------------------
case READ_INPUT_REG:
{
}
break;
//--------------------------------------------------------------------------
default:
{
COMMAND_ERR=0x1;//íåñóùåñòâóþùàÿ êîìàíäà
MD_STATE=MD_ERR_HANDLING;//íà îáðàáîò÷èê îøèáêè
}
}
}
//-----------------------------------------------------------------------------------
void ModBusProcess(void)//ãëàâíûé ïðîöåññ modbus
{
switch(MD_STATE)
{
//------------------------------------------
case(MD_RESTART):
{
// buf_count=0x0;//?? ïðè âêëþ÷åíèè âåäåò ñåáÿ íåàäåêâàòíî, ïðè÷èíà íåèçâåñòíà
Timer1_Reset();
Timer1_Stop();
cnt_15=0x0;
cnt_35=0x0;
TIMEOUT_15=0x0; //òàéìàóò 1.5
TIMEOUT_35=0x0; //òàéìàóò 3.5
MD_STATE=MD_WAIT;//ïåðåõîäèì â ñîñòîÿíèå îæèäàíèÿ
}break;
//------------------------------------------
case(MD_WAIT)://îæèäàíèå ïðèåìà
{
//ïóñòî
}break;
//------------------------------------------
case(MD_ADDR_CHECK):// ïðîâåðêà àäðåñà
{
if(RecieveBuf[0]==ADRESS_DEV)//åñëè àäðåñ ñîâïàë
{
MD_STATE=MD_CRC_CHECK; //ïðîâåðÿåì crc
}
else
{
MD_STATE=MD_RESTART; //èíà÷å æäåì íîâîé ïîñûëêè
}
}break;
//------------------------------------------
case(MD_CRC_CHECK):// ïðîâåðêà CRC
{
//íåò ðåàëèçàöèè crc//ðåàëèçàöèÿ CRC ïîÿâèëàñü
unsigned int CRC=0x0;
CRC|=((RecieveBuf[buf_count-CRC_LEN]<<8)|(RecieveBuf[buf_count-CRC_LEN+1]));
if(CRC16(&RecieveBuf,buf_count-CRC_LEN)==CRC)
{
MD_STATE=MD_BUF_HANDLING;
}
else
{
CRC_ERR=0x1;//íåñîâïàäåíèå CRC
MD_STATE=MD_ERR_HANDLING;//íà îáðàáîò÷èê îøèáêè
}
}break;
//------------------------------------------
case(MD_BUF_HANDLING):// îáðàáîòêà ïðèíÿòîãî áóôåðà
{
ModBusBufHandling();//ïðîöåäóðà îáðàáîòêè ñîîáùåíèÿ
MD_STATE=MD_BUF_TRANSFER;//ïîñëå îáðàáîòêè ïåðåäàåì ñîîáùåíèå
}break;
//------------------------------------------
case(MD_BUF_TRANSFER):// ïåðåäà÷à áóôåðà
{
UDR=TransferBuf[transf_count];//ïåðåäà÷à áàéòà, îñòàëüíûì çàéìåòñÿ àâòîìàò
transf_count++;
MD_STATE=MD_WAIT;//çàáðîñèëè äàííûå â àâòîìàò è æäåì
}break;
//------------------------------------------
case(MD_ERR_HANDLING):// îáðàáîòêà îøèáîê // ìîæíî íå ðåàëèçîâûâàòü
{
//---îáðàáîòêà îøèáîê----
CRC_ERR=0x0; //îøèáêà crc
COMMAND_ERR=0x0;//íåïîääåðæèâàåìàÿ êîìàíäà
MD_STATE=MD_RESTART; //èíà÷å ðåñòàðò è æäåì íîâîé ïîñûëêè
}break;
//------------------------------------------
}
}
//-----------------------ðàñ÷åò CRC16------------------------------------------------------------
unsigned int CRC16( unsigned char * pucFrame, unsigned int usLen )
{
unsigned char ucCRCHi = 0xFF;
unsigned char ucCRCLo = 0xFF;
int iIndex;
while( usLen-- )
{
iIndex = ucCRCLo ^ *( pucFrame++ );
ucCRCLo = ( unsigned char )( ucCRCHi ^ pgm_read_byte(&aucCRCHi[iIndex])/*aucCRCHi[iIndex]*/ );
ucCRCHi = pgm_read_byte(&aucCRCLo[iIndex]);//aucCRCLo[iIndex];
}
return ( unsigned int )( ucCRCHi | ucCRCLo<< 8 );
}
//---------------------------------------------------------------------------------------------
void stub(void)//çàãëóøêà äëÿ ïðîâåðêè
{
unsigned int CRC=0;
TransferBuf[0]=ADRESS_DEV;
TransferBuf[1]=0x3;//read reg
TransferBuf[2]=0x2;
TransferBuf[3]=0x1;
TransferBuf[4]=0x1;
//TransferBuf[5]=0x1;
CRC=CRC16(&TransferBuf,5);
TransferBuf[5]=HI(CRC);
TransferBuf[6]=LO(CRC);
buf_len=0x7;
}