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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 838 | MikeW | 1 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 2 | // + Copyright (c) 04.2007 Holger Buss |
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| 3 | // + only for non-profit use |
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| 4 | // + www.MikroKopter.com |
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| 5 | // + see the File "License.txt" for further Informations |
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| 6 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 7 | |||
| 8 | #include "main.h" |
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| 9 | #include "uart.h" |
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| 10 | |||
| 11 | unsigned char DebugGetAnforderung = 0,DebugDisplayAnforderung = 0,DebugDataAnforderung = 0,GetVersionAnforderung = 0; |
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| 12 | unsigned volatile char SioTmp = 0; |
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| 13 | unsigned volatile char SendeBuffer[MAX_SENDE_BUFF]; |
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| 14 | unsigned volatile char RxdBuffer[MAX_EMPFANGS_BUFF]; |
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| 15 | unsigned volatile char NMEABuffer[MAX_EMPFANGS_BUFF]; |
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| 16 | unsigned volatile char NeuerDatensatzEmpfangen = 0; |
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| 17 | unsigned volatile char NeueKoordinateEmpfangen = 0; |
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| 18 | unsigned volatile char UebertragungAbgeschlossen = 1; |
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| 19 | |||
| 20 | unsigned volatile char CntCrcError = 0; |
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| 21 | unsigned volatile char AnzahlEmpfangsBytes = 0; |
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| 22 | unsigned volatile char PC_DebugTimeout = 0; |
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| 23 | unsigned char NurKanalAnforderung = 0; |
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| 24 | unsigned char PcZugriff = 100; |
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| 25 | unsigned char MotorTest[4] = {0,0,0,0}; |
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| 26 | unsigned char MeineSlaveAdresse; |
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| 27 | struct str_DebugOut DebugOut; |
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| 28 | struct str_Debug DebugIn; |
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| 29 | struct str_VersionInfo VersionInfo; |
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| 30 | int Debug_Timer; |
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| 31 | |||
| 32 | |||
| 33 | |||
| 34 | |||
| 35 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 36 | //++ Sende-Part der Datenübertragung |
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| 37 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 38 | SIGNAL(INT_VEC_TX) |
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| 39 | { |
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| 40 | static unsigned int ptr = 0; |
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| 41 | unsigned char tmp_tx; |
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| 42 | if(!UebertragungAbgeschlossen) |
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| 43 | { |
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| 44 | ptr++; // die [0] wurde schon gesendet |
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| 45 | tmp_tx = SendeBuffer[ptr]; |
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| 46 | if((tmp_tx == '\r') || (ptr == MAX_SENDE_BUFF)) |
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| 47 | { |
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| 48 | ptr = 0; |
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| 49 | UebertragungAbgeschlossen = 1; |
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| 50 | } |
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| 51 | UDR = tmp_tx; |
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| 52 | } |
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| 53 | else ptr = 0; |
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| 54 | } |
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| 55 | |||
| 56 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 57 | //++ Empfangs-Part der Datenübertragung, incl. CRC-Auswertung |
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| 58 | //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 59 | SIGNAL(INT_VEC_RX) |
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| 60 | { |
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| 61 | static unsigned int crc; |
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| 62 | static unsigned char crc1,crc2,buf_ptr; |
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| 63 | static unsigned char UartState = 0; |
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| 64 | unsigned char CrcOkay = 0; |
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| 65 | |||
| 66 | SioTmp = UDR; |
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| 67 | if(buf_ptr >= MAX_EMPFANGS_BUFF) UartState = 0; |
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| 68 | if(SioTmp == '\r' && UartState == 2) |
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| 69 | { |
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| 70 | UartState = 0; |
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| 71 | crc -= RxdBuffer[buf_ptr-2]; |
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| 72 | crc -= RxdBuffer[buf_ptr-1]; |
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| 73 | crc %= 4096; |
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| 74 | crc1 = '=' + crc / 64; |
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| 75 | crc2 = '=' + crc % 64; |
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| 76 | CrcOkay = 0; |
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| 77 | if((crc1 == RxdBuffer[buf_ptr-2]) && (crc2 == RxdBuffer[buf_ptr-1])) CrcOkay = 1; else { CrcOkay = 0; CntCrcError++;}; |
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| 78 | if(!NeuerDatensatzEmpfangen && CrcOkay) // Datensatz schon verarbeitet |
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| 79 | { |
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| 80 | NeuerDatensatzEmpfangen = 1; |
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| 81 | AnzahlEmpfangsBytes = buf_ptr; |
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| 82 | RxdBuffer[buf_ptr] = '\r'; |
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| 83 | if(RxdBuffer[2] == 'R') wdt_enable(WDTO_250MS); // Reset-Commando |
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| 84 | } |
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| 85 | } |
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| 86 | else |
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| 87 | switch(UartState) |
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| 88 | { |
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| 89 | case 0: |
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| 90 | if(SioTmp == '#' && !NeuerDatensatzEmpfangen) UartState = 1; // Startzeichen und Daten schon verarbeitet |
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| 91 | buf_ptr = 0; |
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| 92 | RxdBuffer[buf_ptr++] = SioTmp; |
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| 93 | crc = SioTmp; |
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| 94 | break; |
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| 95 | case 1: // Adresse auswerten |
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| 96 | UartState++; |
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| 97 | RxdBuffer[buf_ptr++] = SioTmp; |
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| 98 | crc += SioTmp; |
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| 99 | break; |
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| 100 | case 2: // Eingangsdaten sammeln |
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| 101 | RxdBuffer[buf_ptr] = SioTmp; |
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| 102 | if(buf_ptr < MAX_EMPFANGS_BUFF) buf_ptr++; |
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| 103 | else UartState = 0; |
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| 104 | crc += SioTmp; |
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| 105 | break; |
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| 106 | default: |
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| 107 | UartState = 0; |
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| 108 | break; |
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| 109 | } |
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| 110 | } |
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| 111 | |||
| 112 | |||
| 113 | // -------------------------------------------------------------------------- |
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| 114 | void AddCRC(unsigned int wieviele) |
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| 115 | { |
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| 116 | unsigned int tmpCRC = 0,i; |
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| 117 | for(i = 0; i < wieviele;i++) |
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| 118 | { |
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| 119 | tmpCRC += SendeBuffer[i]; |
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| 120 | } |
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| 121 | tmpCRC %= 4096; |
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| 122 | SendeBuffer[i++] = '=' + tmpCRC / 64; |
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| 123 | SendeBuffer[i++] = '=' + tmpCRC % 64; |
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| 124 | SendeBuffer[i++] = '\r'; |
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| 125 | UebertragungAbgeschlossen = 0; |
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| 126 | UDR = SendeBuffer[0]; |
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| 127 | } |
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| 128 | |||
| 129 | |||
| 130 | |||
| 131 | // -------------------------------------------------------------------------- |
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| 132 | void SendOutData(unsigned char cmd,unsigned char modul, unsigned char *snd, unsigned char len) |
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| 133 | { |
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| 134 | unsigned int pt = 0; |
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| 135 | unsigned char a,b,c; |
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| 136 | unsigned char ptr = 0; |
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| 137 | |||
| 138 | SendeBuffer[pt++] = '#'; // Startzeichen |
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| 139 | SendeBuffer[pt++] = modul; // Adresse (a=0; b=1,...) |
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| 140 | SendeBuffer[pt++] = cmd; // Commando |
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| 141 | |||
| 142 | while(len) |
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| 143 | { |
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| 144 | if(len) { a = snd[ptr++]; len--;} else a = 0; |
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| 145 | if(len) { b = snd[ptr++]; len--;} else b = 0; |
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| 146 | if(len) { c = snd[ptr++]; len--;} else c = 0; |
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| 147 | SendeBuffer[pt++] = '=' + (a >> 2); |
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| 148 | SendeBuffer[pt++] = '=' + (((a & 0x03) << 4) | ((b & 0xf0) >> 4)); |
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| 149 | SendeBuffer[pt++] = '=' + (((b & 0x0f) << 2) | ((c & 0xc0) >> 6)); |
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| 150 | SendeBuffer[pt++] = '=' + ( c & 0x3f); |
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| 151 | } |
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| 152 | AddCRC(pt); |
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| 153 | } |
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| 154 | |||
| 155 | |||
| 156 | // -------------------------------------------------------------------------- |
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| 157 | void Decode64(unsigned char *ptrOut, unsigned char len, unsigned char ptrIn,unsigned char max) // Wohin mit den Daten; Wie lang; Wo im RxdBuffer |
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| 158 | { |
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| 159 | unsigned char a,b,c,d; |
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| 160 | unsigned char ptr = 0; |
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| 161 | unsigned char x,y,z; |
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| 162 | while(len) |
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| 163 | { |
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| 164 | a = RxdBuffer[ptrIn++] - '='; |
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| 165 | b = RxdBuffer[ptrIn++] - '='; |
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| 166 | c = RxdBuffer[ptrIn++] - '='; |
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| 167 | d = RxdBuffer[ptrIn++] - '='; |
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| 168 | if(ptrIn > max - 2) break; // nicht mehr Daten verarbeiten, als empfangen wurden |
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| 169 | |||
| 170 | x = (a << 2) | (b >> 4); |
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| 171 | y = ((b & 0x0f) << 4) | (c >> 2); |
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| 172 | z = ((c & 0x03) << 6) | d; |
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| 173 | |||
| 174 | if(len--) ptrOut[ptr++] = x; else break; |
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| 175 | if(len--) ptrOut[ptr++] = y; else break; |
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| 176 | if(len--) ptrOut[ptr++] = z; else break; |
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| 177 | } |
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| 178 | } |
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| 179 | |||
| 180 | // -------------------------------------------------------------------------- |
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| 181 | void BearbeiteRxDaten(void) |
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| 182 | { |
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| 183 | if(!NeuerDatensatzEmpfangen) return; |
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| 184 | unsigned char tmp_char_arr2[2] ={0,0}; |
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| 185 | PcZugriff = 255; |
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| 186 | switch(RxdBuffer[2]) |
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| 187 | { |
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| 188 | case 'c':// Debugdaten incl. Externe IOs usw |
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| 189 | Decode64((unsigned char *) &DebugIn,sizeof(DebugIn),3,AnzahlEmpfangsBytes); |
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| 190 | DebugDataAnforderung = 1; |
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| 191 | break; |
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| 192 | case 'h':// x-1 Displayzeilen |
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| 193 | Decode64((unsigned char *) &tmp_char_arr2[0],sizeof(tmp_char_arr2),3,AnzahlEmpfangsBytes); |
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| 194 | if(tmp_char_arr2[1] == 255) NurKanalAnforderung = 1; else NurKanalAnforderung = 0; // keine Displaydaten |
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| 195 | DebugDisplayAnforderung = 1; |
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| 196 | break; |
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| 197 | case 't':// Motortest |
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| 198 | Decode64((unsigned char *) &MotorTest[0],sizeof(MotorTest),3,AnzahlEmpfangsBytes); |
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| 199 | break; |
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| 200 | case 'v': // Version-Anforderung und Ausbaustufe |
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| 201 | GetVersionAnforderung = 1; |
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| 202 | break; |
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| 203 | case 'g':// "Get"-Anforderung für Debug-Daten |
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| 204 | // Bei Get werden die vom PC einstellbaren Werte vom PC zurückgelesen |
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| 205 | DebugGetAnforderung = 1; |
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| 206 | break; |
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| 207 | case 'q':// "Get"-Anforderung für Settings |
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| 208 | // Bei Get werden die vom PC einstellbaren Werte vom PC zurückgelesen |
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| 209 | Decode64((unsigned char *) &tmp_char_arr2[0],sizeof(tmp_char_arr2),3,AnzahlEmpfangsBytes); |
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| 210 | if(tmp_char_arr2[0] != 0xff) |
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| 211 | { |
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| 212 | if(tmp_char_arr2[0] > 5) tmp_char_arr2[0] = 5; |
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| 213 | ReadParameterSet(tmp_char_arr2[0], (unsigned char *) &EE_Parameter.Kanalbelegung[0], STRUCT_PARAM_LAENGE); |
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| 214 | SendOutData('L' + tmp_char_arr2[0] -1,MeineSlaveAdresse,(unsigned char *) &EE_Parameter.Kanalbelegung[0],STRUCT_PARAM_LAENGE); |
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| 215 | } |
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| 216 | else |
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| 217 | SendOutData('L' + GetActiveParamSetNumber()-1,MeineSlaveAdresse,(unsigned char *) &EE_Parameter.Kanalbelegung[0],STRUCT_PARAM_LAENGE); |
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| 218 | break; |
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| 219 | case 'l': |
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| 220 | case 'm': |
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| 221 | case 'n': |
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| 222 | case 'o': |
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| 223 | case 'p': // Parametersatz speichern |
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| 224 | Decode64((unsigned char *) &EE_Parameter.Kanalbelegung[0],STRUCT_PARAM_LAENGE,3,AnzahlEmpfangsBytes); |
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| 225 | WriteParameterSet(RxdBuffer[2] - 'l' + 1, (unsigned char *) &EE_Parameter.Kanalbelegung[0], STRUCT_PARAM_LAENGE); |
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| 226 | eeprom_write_byte(&EEPromArray[EEPROM_ADR_ACTIVE_SET], RxdBuffer[2] - 'l' + 1); // aktiven Datensatz merken |
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| 227 | break; |
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| 228 | } |
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| 229 | NeuerDatensatzEmpfangen = 0; |
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| 230 | } |
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| 231 | |||
| 232 | |||
| 233 | //############################################################################ |
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| 234 | //Routine für die Serielle Ausgabe |
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| 235 | int uart_putchar (char c) |
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| 236 | //############################################################################ |
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| 237 | { |
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| 238 | if (c == '\n') |
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| 239 | uart_putchar('\r'); |
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| 240 | //Warten solange bis Zeichen gesendet wurde |
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| 241 | loop_until_bit_is_set(USR, UDRE); |
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| 242 | //Ausgabe des Zeichens |
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| 243 | UDR = c; |
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| 244 | return (0); |
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| 245 | } |
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| 246 | |||
| 247 | // -------------------------------------------------------------------------- |
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| 248 | void WriteProgramData(unsigned int pos, unsigned char wert) |
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| 249 | { |
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| 250 | //if (ProgramLocation == IN_RAM) Buffer[pos] = wert; |
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| 251 | // else eeprom_write_byte(&EE_Buffer[pos], wert); |
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| 252 | // Buffer[pos] = wert; |
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| 253 | } |
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| 254 | |||
| 255 | //############################################################################ |
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| 256 | //INstallation der Seriellen Schnittstelle |
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| 257 | void UART_Init (void) |
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| 258 | //############################################################################ |
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| 259 | { |
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| 260 | //Enable TXEN im Register UCR TX-Data Enable & RX Enable |
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| 261 | |||
| 262 | UCR=(1 << TXEN) | (1 << RXEN); |
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| 263 | // UART Double Speed (U2X) |
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| 264 | USR |= (1<<U2X); |
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| 265 | // RX-Interrupt Freigabe |
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| 266 | UCSRB |= (1<<RXCIE); |
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| 267 | // TX-Interrupt Freigabe |
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| 268 | UCSRB |= (1<<TXCIE); |
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| 269 | |||
| 270 | //Teiler wird gesetzt |
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| 271 | UBRR=(SYSCLK / (BAUD_RATE * 8L) - 1); |
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| 272 | //UBRR = 33; |
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| 273 | //öffnet einen Kanal für printf (STDOUT) |
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| 274 | //fdevopen (uart_putchar, 0); |
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| 275 | //sbi(PORTD,4); |
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| 276 | Debug_Timer = SetDelay(400); |
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| 277 | } |
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| 278 | |||
| 279 | //--------------------------------------------------------------------------------------------- |
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| 280 | void DatenUebertragung(void) |
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| 281 | { |
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| 282 | if(!UebertragungAbgeschlossen) return; |
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| 283 | |||
| 284 | if(DebugGetAnforderung && UebertragungAbgeschlossen) // Bei Get werden die vom PC einstellbaren Werte vom PC zurückgelesen |
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| 285 | { |
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| 286 | SendOutData('G',MeineSlaveAdresse,(unsigned char *) &DebugIn,sizeof(DebugIn)); |
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| 287 | DebugGetAnforderung = 0; |
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| 288 | } |
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| 289 | |||
| 290 | if((CheckDelay(Debug_Timer) || DebugDataAnforderung) && UebertragungAbgeschlossen) |
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| 291 | { |
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| 292 | SendOutData('D',MeineSlaveAdresse,(unsigned char *) &DebugOut,sizeof(DebugOut)); |
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| 293 | DebugDataAnforderung = 0; |
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| 294 | Debug_Timer = SetDelay(2 * MIN_DEBUG_INTERVALL); |
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| 295 | } |
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| 296 | |||
| 297 | if(GetVersionAnforderung && UebertragungAbgeschlossen) |
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| 298 | { |
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| 299 | SendOutData('V',MeineSlaveAdresse,(unsigned char *) &VersionInfo,sizeof(VersionInfo)); |
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| 300 | GetVersionAnforderung = 0; |
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| 301 | } |
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| 302 | } |
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| 303 |